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:
  1. 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.
  2. SOLVER DATA
    This is the output of the solver (stdout and stderr).
  3. 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.
  4. 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

Namenormalized-opb/mps-v2-20-10/www.csit.fsu.edu/~burkardt/datasets/mps/normalized-mps-v2-20-10-testprob.opb
MD5SUMda2667b4c8b643a355efc1f418e48913
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483647
Optimality of the best value was proved NO
Number of terms in the objective function 56
Biggest coefficient in the objective function 9663676416
Number of bits for the biggest coefficient in the objective function 34
Sum of the numbers in the objective function 19327377394
Number of bits of the sum of numbers in the objective function 35
Biggest number in a constraint 9663676416
Number of bits of the biggest number in a constraint 34
Biggest sum of numbers in a constraint 19327377394
Number of bits of the biggest sum of numbers35
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.087986
Number of variables56
Total number of constraints5
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints5
Minimum length of a constraint12
Maximum length of a constraint44

Trace number 32110

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc25 THE 2005-05-27 08:31:21 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=23541 boxname=wulflinc25 idbench=1185 idsolver=16 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  da2667b4c8b643a355efc1f418e48913  /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-testprob.opb
REAL COMMAND:  minisat+_script -cb -gs /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-testprob.opb
IDLAUNCH: 23541
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.220
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		: 451.220
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:        884092 kB
Buffers:          2424 kB
Cached:         128656 kB
SwapCached:        976 kB
Active:          18712 kB
Inactive:       114472 kB
HighTotal:      131008 kB
HighFree:        11872 kB
LowTotal:       903652 kB
LowFree:        872220 kB
SwapTotal:     2097892 kB
SwapFree:      2095992 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            11688 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-27 08:31:21 (client local time) WITH STATUS 30 IN 0.090986 SECONDS
stats: 23541 0 0.090986 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 6 PB-constraints to clauses...
c   -- Unit propagations: (none)
c   -- Detecting intervals from adjacent constraints: #
c   -- Clauses(.)/Splits(s): (none)
c ---[   5]---> BDD-cost:   12
c ---[   4]---> BDD-cost:   11
c ---[   2]---> BDD-cost:   40
c ---[   1]---> BDD-cost:   56
c ---[   0]---> BDD-cost:   43
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |     302      777 |     100       0        0     nan |  0.000 % |
c ==============================================================================
c Found solution: 9663751144
c ---[   0]---> Sorter-cost:  483     Base: 2 2 2 2 2 2 2 2 2 2 2 2 3 3
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         1 |    1453     3470 |     484       1        2     2.0 |  0.000 % |
c ==============================================================================
c Found solution: 9663728620
c ---[   0]---> Sorter-cost:  105     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 |         8 |    1549     3721 |     516       6       23     3.8 |  0.000 % |
c ==============================================================================
c Found solution: 9663727707
c ---[   0]---> Sorter-cost:   89     Base: 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 |        20 |    1447     3488 |     482      10       61     6.1 |  0.000 % |
c ==============================================================================
c Found solution: 9663727666
c ---[   0]---> Sorter-cost:  101     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 |        21 |    1589     3823 |     529      11       67     6.1 |  0.000 % |
c ==============================================================================
c Found solution: 9663727603
c ---[   0]---> Sorter-cost:    1     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 |        22 |    1594     3836 |     531      12       72     6.0 |  0.000 % |
c ==============================================================================
c Found solution: 9663726618
c ---[   0]---> Sorter-cost:   92     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 |    1530     3694 |     510       9       66     7.3 |  0.000 % |
c ==============================================================================
c Found solution: 9663726592
c ---[   0]---> Sorter-cost:   69     Base: 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 |        26 |     886     2174 |     295       6       61    10.2 |  0.000 % |
c ==============================================================================
c Optimal solution: 9663726592
s OPTIMUM FOUND
v -X1_bit_10 -X1_bit_9 -X1_bit_8 -X1_bit_7 -X1_bit_6 -X1_bit_5 -X1_bit_4 -X1_bit_3 -X1_bit_2 -X1_bit_1 -X1_bit0 -X1_bit1 X1_bit2 -X2_bit_10 -X2_bit_9 -X2_bit_8 -X2_bit_7 -X2_bit_6 -X2_bit_5 -X2_bit_4 -X2_bit_3 -X2_bit_2 -X2_bit_1 -X2_bit0 -X2_bit1 -X3_bit_10 -X3_bit_9 -X3_bit_8 -X3_bit_7 -X3_bit_6 -X3_bit_5 -X3_bit_4 -X3_bit_3 -X3_bit_2 -X3_bit_1 X3_bit0 -X3_bit1 X3_bit2 -X3_bit3 -X3_bit4 -X3_bit5 -X3_bit6 -X3_bit7 -X3_bit8 -X3_bit9 -X3_bit10 -X3_bit11 -X3_bit12 -X3_bit13 -X3_bit14 -X3_bit15 -X3_bit16 -X3_bit17 -X3_bit18 -X3_bit19 X3_bit20
c _______________________________________________________________________________
c 
c restarts              : 8
c conflicts             : 38             (644 /sec)
c decisions             : 584            (9900 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 0.058991 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): 0.91 0.95 0.91 2/54 27840
Raw data (stat): 27840 (runsolver) R 27839 1586 1585 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 854754821 1052672 99 4294967295 134512640 135381576 3221224464 3221219672 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+0.096183 s]
Raw data (loadavg): 0.91 0.95 0.91 1/53 27844
Raw data (stat): 27840 (runsolver) R 27839 1586 1585 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 854754821 1052672 99 4294967295 134512640 135381576 3221224464 3221219672 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): 0.095902
CPU time (s): 0.090986
CPU user time (s): 0.06499
CPU system time (s): 0.025996
CPU usage (%): 94.8739
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	9663726592
#### END VERIFIER DATA ####