PB'05 competition: run trace

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided in four parts:

LAUNCHER DATA
These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provide some useful information on the computer.
SOLVER DATA
This is the output of the solver (stdout and stderr).
WATCHER DATA
This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to 1200 seconds. After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
VERIFIER DATA
The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.

General information on the benchmark

Name	normalized-opb/mps-v2-13-7/www.csit.fsu.edu/~burkardt/datasets/mps/normalized-mps-v2-13-7-nazareth.opb
MD5SUM	25b0f49e8e3ab43f9f405cabc9317ea8
Bench Category	optimization, medium integers (OPTMEDINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	-1048575
Optimality of the best value was proved	NO
Number of terms in the objective function	55
Biggest coefficient in the objective function	1048576
Number of bits for the biggest coefficient in the objective function	21
Sum of the numbers in the objective function	3162109
Number of bits of the sum of numbers in the objective function	22
Biggest number in a constraint	5244800
Number of bits of the biggest number in a constraint	23
Biggest sum of numbers in a constraint	19924855
Number of bits of the biggest sum of numbers	25
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	0.008998
Number of variables	55
Total number of constraints	3
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	0
Number of constraints which are nor clauses,nor cardinality constraints	3
Minimum length of a constraint	14
Maximum length of a constraint	41

Trace number 31321

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc13 THE 2005-05-26 00:28:06 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=22753 boxname=wulflinc13 idbench=1569 idsolver=15 numberseed=0
MD5SUM SOLVER: 34d34154b8ad81f02ee98439942e0814  /oldhome/oroussel/solvers/minisat+_script
MD5SUM BENCH:  25b0f49e8e3ab43f9f405cabc9317ea8  /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-13-7-nazareth.opb
REAL COMMAND:  minisat+_script /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-13-7-nazareth.opb
IDLAUNCH: 22753
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.242
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.242
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        889268 kB
Buffers:         23156 kB
Cached:         102164 kB
SwapCached:        412 kB
Active:          18492 kB
Inactive:       109072 kB
HighTotal:      131008 kB
HighFree:        94696 kB
LowTotal:       903652 kB
LowFree:        794572 kB
SwapTotal:     2097136 kB
SwapFree:      2096060 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5948 kB
Slab:            12124 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-26 00:28:07 (client local time) WITH STATUS 30 IN 0.159975 SECONDS
stats: 22753 0 0.159975 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 3 PB-constraints to clauses...
c   -- Unit propagations: (none)
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   2]---> BDD-cost:   13
c ---[   1]---> BDD-cost:  157
c ---[   0]---> Sorter-cost:  439     Base: 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |    1303     3161 |     434       0        0     nan |  0.000 % |
c ==============================================================================
c [1mFound solution: 327657[0m
c ---[   0]---> Sorter-cost:  391     Base: 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |    2177     5211 |     725       0        0     nan |  0.000 % |
c ==============================================================================
c [1mFound solution: -1029251[0m
c ---[   0]---> Sorter-cost:   65     Base: 2 2 2 2 2 2 2 2 2 2 2 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         1 |    1935     4673 |     645       0        0     nan |  0.000 % |
c ==============================================================================
c [1mFound solution: -1039491[0m
c ---[   0]---> Sorter-cost:    4     Base: 2 2 2 2 2 2 2 2 2 2 2 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         2 |    1860     4500 |     620       1        3     3.0 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1039902[0m
c ---[   0]---> Sorter-cost:   14     Base: 2 2 2 2 2 2 2 2 2 2 2 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         4 |    1878     4544 |     626       3        9     3.0 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1045988[0m
c ---[   0]---> Sorter-cost:   12     Base: 2 2 2 2 2 2 2 2 2 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         7 |    1646     4001 |     548       5       14     2.8 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1046512[0m
c ---[   0]---> Sorter-cost:   11     Base: 2 2 2 2 2 2 2 2 2 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         9 |    1637     3980 |     545       5       15     3.0 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1046521[0m
c ---[   0]---> Sorter-cost:    9     Base: 2 2 2 2 2 2 2 2 2 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        15 |    1646     3999 |     548      11       39     3.5 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1046522[0m
c ---[   0]---> Sorter-cost:   11     Base: 2 2 2 2 2 2 2 2 2 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        18 |    1657     4023 |     552      14       48     3.4 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1046524[0m
c ---[   0]---> Sorter-cost:   10     Base: 2 2 2 2 2 2 2 2 2 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        25 |    1668     4047 |     556      21       72     3.4 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1046897[0m
c ---[   0]---> BDD-cost:   99
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        26 |    1796     4455 |     598      22       75     3.4 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1046961[0m
c ---[   0]---> BDD-cost:   42
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        31 |    1900     4747 |     633      27       94     3.5 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1047852[0m
c ---[   0]---> Sorter-cost:    7     Base: 2 2 2 2 2 2 2 2 2
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        31 |    1785     4468 |     595      26       89     3.4 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1047853[0m
c ---[   0]---> BDD-cost:   76
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        31 |    1961     4966 |     653      26       89     3.4 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1047857[0m
c ---[   0]---> BDD-cost:   16
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        34 |    2003     5081 |     667      29       99     3.4 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048336[0m
c ---[   0]---> BDD-cost:   65
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        36 |    1828     4693 |     609      26       93     3.6 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048337[0m
c ---[   0]---> BDD-cost:   18
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        36 |    1876     4827 |     625      26       93     3.6 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048368[0m
c ---[   0]---> BDD-cost:   18
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        38 |    1924     4961 |     641      28       98     3.5 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048369[0m
c ---[   0]---> BDD-cost:    0
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        38 |    1922     4956 |     640      28       98     3.5 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048401[0m
c ---[   0]---> BDD-cost:    7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        38 |    1940     5004 |     646      28       98     3.5 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048433[0m
c ---[   0]---> BDD-cost:    0
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        38 |    1938     4999 |     646      28       98     3.5 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048529[0m
c ---[   0]---> BDD-cost:    0
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        40 |    1527     3940 |     509      24       87     3.6 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048530[0m
c ---[   0]---> BDD-cost:   40
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        43 |    1620     4202 |     540      27       94     3.5 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048531[0m
c ---[   0]---> BDD-cost:   37
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        43 |    1705     4439 |     568      27       94     3.5 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048560[0m
c ---[   0]---> BDD-cost:    0
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        46 |    1344     3529 |     448      25       80     3.2 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048562[0m
c ---[   0]---> BDD-cost:    0
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        46 |    1342     3524 |     447      25       80     3.2 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048563[0m
c ---[   0]---> BDD-cost:    0
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        48 |    1340     3519 |     446      27       85     3.1 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048568[0m
c ---[   0]---> BDD-cost:    0
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        49 |    1157     3051 |     385      21       65     3.1 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048570[0m
c ---[   0]---> BDD-cost:    0
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        49 |    1156     3049 |     385      21       65     3.1 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048571[0m
c ---[   0]---> BDD-cost:    0
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        49 |     986     2616 |     328      10       31     3.1 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048572[0m
c ---[   0]---> BDD-cost:    0
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        49 |     985     2614 |     328      10       31     3.1 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048574[0m
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        49 |     665     1840 |     221       3       11     3.7 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048575[0m
c [1mOptimal solution: -1048575[0m
s OPTIMUM FOUND
v -CLNAM1_bit_7 -CLNAM1_bit_6 -CLNAM1_bit_5 -CLNAM1_bit_4 -CLNAM1_bit_3 -CLNAM1_bit_2 -CLNAM1_bit_1 -CLNAM1_bit0 -CLNAM1_bit1 -CLNAM1_bit2 -CLNAM1_bit3 -CLNAM1_bit4 -CLNAM1_bit5 -CLNAM1_bit6 CLNAM2_bit_7 CLNAM2_bit_6 CLNAM2_bit_5 CLNAM2_bit_4 CLNAM2_bit_3 CLNAM2_bit_2 CLNAM2_bit_1 CLNAM2_bit0 CLNAM2_bit1 CLNAM2_bit2 CLNAM2_bit3 CLNAM2_bit4 CLNAM2_bit5 CLNAM2_bit6 CLNAM2_bit7 CLNAM2_bit8 CLNAM2_bit9 CLNAM2_bit10 CLNAM2_bit11 CLNAM2_bit12 -CLNAM3_bit_7 -CLNAM3_bit_6 -CLNAM3_bit_5 -CLNAM3_bit_4 -CLNAM3_bit_3 -CLNAM3_bit_2 -CLNAM3_bit_1 -CLNAM3_bit0 -CLNAM3_bit1 -CLNAM3_bit2 -CLNAM3_bit3 -CLNAM3_bit4 -CLNAM3_bit5 -CLNAM3_bit6 -CLNAM3_bit7 -CLNAM3_bit8 -CLNAM3_bit9 -CLNAM3_bit10 -CLNAM3_bit11 -CLNAM3_bit12 -CLNAM3_bit13
c _______________________________________________________________________________
c 
c restarts              : 32
c conflicts             : 49             (371 /sec)
c decisions             : 7659           (58032 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 0.131979 s
c _______________________________________________________________________________
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Raw data (loadavg): 0.88 0.95 0.90 2/54 18436
Raw data (stat): 18436 (runsolver) R 18435 1269 1268 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 784984208 1052672 99 4294967295 134512640 135381576 3221224480 3221219688 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+0.17248 s]
Raw data (loadavg): 0.88 0.95 0.90 1/53 18440
Raw data (stat): 18436 (runsolver) R 18435 1269 1268 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 784984208 1052672 99 4294967295 134512640 135381576 3221224480 3221219688 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child status: 30
Real time (s): 0.172189
CPU time (s): 0.159975
CPU user time (s): 0.137979
CPU system time (s): 0.021996
CPU usage (%): 92.9066
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	-1048575
#### END VERIFIER DATA ####