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 14075

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc27 THE 2005-04-20 23:10:10 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=20394 boxname=wulflinc27 idbench=1569 idsolver=10 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  25b0f49e8e3ab43f9f405cabc9317ea8  /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-nazareth.opb
REAL COMMAND:  minisat+ -ca /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-nazareth.opb /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-nazareth.opb
IDLAUNCH: 20394
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
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	: 3
cpu MHz		: 451.169
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	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        776768 kB
Buffers:         33624 kB
Cached:         191932 kB
SwapCached:        136 kB
Active:         106876 kB
Inactive:       121100 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        776516 kB
SwapTotal:     2097892 kB
SwapFree:      2097324 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6220 kB
Slab:            24320 kB
Committed_AS:    63488 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-20 23:10:10 (client local time) WITH STATUS 30 IN 0.067989 SECONDS
stats: 20394 0 0.067989 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]---> Adder-cost: 45   maxlim: 3582   bits: 13/12
c ---[   1]---> Adder-cost: 80   maxlim: 3177594   bits: 23/22
c ---[   0]---> Adder-cost: 80   maxlim: 9435254   bits: 24/24
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |    1319     5013 |     439       0        0     nan |  0.000 % |
c ==============================================================================
c [1mFound solution: -21803[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 80   maxlim: 1086761   bits: 22/21
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        23 |    1760     6612 |     586      23      100     4.3 |  0.000 % |
c ==============================================================================
c [1mFound solution: -130048[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 0   maxlim: 1195006   bits: 22/21
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        27 |    1810     6976 |     603      27      116     4.3 |  0.000 % |
c ==============================================================================
c [1mFound solution: -147200[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 0   maxlim: 1212158   bits: 22/21
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        27 |    1833     7221 |     611      27      116     4.3 |  0.000 % |
c ==============================================================================
c [1mFound solution: -163840[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 0   maxlim: 1228798   bits: 22/21
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        31 |    1860     7462 |     620      31      130     4.2 |  0.000 % |
c ==============================================================================
c [1mFound solution: -196595[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 0   maxlim: 1261553   bits: 22/21
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        37 |    1884     7644 |     628      37      157     4.2 |  0.000 % |
c ==============================================================================
c [1mFound solution: -229158[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 0   maxlim: 1294116   bits: 22/21
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        38 |    1901     7788 |     633      38      163     4.3 |  0.000 % |
c ==============================================================================
c [1mFound solution: -245542[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 0   maxlim: 1310500   bits: 22/21
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        39 |    1919     7942 |     639      39      168     4.3 |  0.000 % |
c ==============================================================================
c [1mFound solution: -737182[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 2   maxlim: 753564   bits: 21/20
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        41 |    1904     7987 |     634      40      173     4.3 |  0.000 % |
c ==============================================================================
c [1mFound solution: -778015[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 0   maxlim: 794397   bits: 21/20
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        42 |    1914     8120 |     638      40      173     4.3 |  0.000 % |
c ==============================================================================
c [1mFound solution: -778151[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 0   maxlim: 794533   bits: 21/20
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        42 |    1920     8196 |     640      40      173     4.3 |  0.000 % |
c ==============================================================================
c [1mFound solution: -778152[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 0   maxlim: 794534   bits: 21/20
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        43 |    1922     8220 |     640      41      188     4.6 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1032193[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 2   maxlim: 32767   bits: 16/15
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        44 |    1473     5629 |     491      28      109     3.9 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1044481[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 2   maxlim: 8191   bits: 14/13
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        48 |    1098     4172 |     366      23       85     3.7 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1046529[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 2   maxlim: 4095   bits: 13/12
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        48 |    1010     3857 |     336      22       81     3.7 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048449[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 2   maxlim: 255   bits: 9/8
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        56 |     639     2445 |     213      15       57     3.8 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048480[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 0   maxlim: 286   bits: 9/9
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        56 |     646     2470 |     215      15       57     3.8 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048481[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 0   maxlim: 287   bits: 9/9
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        56 |     647     2473 |     215      15       57     3.8 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048505[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 0   maxlim: 311   bits: 9/9
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        59 |     650     2484 |     216      18       66     3.7 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048513[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 2   maxlim: 127   bits: 8/7
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        59 |     555     2140 |     185      18       66     3.7 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048545[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 2   maxlim: 63   bits: 7/6
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        59 |     467     1823 |     155      13       47     3.6 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048569[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 2   maxlim: 15   bits: 5/4
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        59 |     281     1156 |      93      11       41     3.7 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048573[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ---[   0]---> Adder-cost: 0   maxlim: 1   bits: 2/1
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        59 |      40      182 |      13       1        6     6.0 |  0.000 % |
c ==============================================================================
c [1mFound solution: -1048574[0m
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): (none)
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        60 |       9       53 |       3       0        0     nan |  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              : 24
c conflicts             : 60             (1053 /sec)
c decisions             : 2142           (37585 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 0.056991 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): 0.85 0.97 0.95 2/54 6196
Raw data (stat): 6196 (runsolver) R 6195 18865 18864 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 540288018 1052672 99 4294967295 134512640 135381576 3221224432 3221219676 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+0.079431 s]
Raw data (loadavg): 0.85 0.97 0.95 1/53 6196
Raw data (stat): 6196 (runsolver) R 6195 18865 18864 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 540288018 1052672 99 4294967295 134512640 135381576 3221224432 3221219676 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child status: 30
Real time (s): 0.079147
CPU time (s): 0.067989
CPU user time (s): 0.057991
CPU system time (s): 0.009998
CPU usage (%): 85.9022
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	-1048575
#### END VERIFIER DATA ####