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-v2-13-7/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-grow7.opb
MD5SUMdfed840c6e02b292405d0ba5eb62b075
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 560
Biggest coefficient in the objective function 469762048
Number of bits for the biggest coefficient in the objective function 29
Sum of the numbers in the objective function 8589934514
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint 109773592723456
Number of bits of the biggest number in a constraint 47
Biggest sum of numbers in a constraint 511403730649348
Number of bits of the biggest sum of numbers49
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1252.73
Number of variables6944
Total number of constraints420
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 constraints420
Minimum length of a constraint19
Maximum length of a constraint416

Trace number 35442 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-05-28 13:13:12 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24753 boxname=wulflinc1 idbench=1225 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  dfed840c6e02b292405d0ba5eb62b075  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-grow7.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-grow7.opb
IDLAUNCH: 24753
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        728008 kB
Buffers:         36132 kB
Cached:         246204 kB
SwapCached:        680 kB
Active:          22084 kB
Inactive:       262528 kB
HighTotal:      131008 kB
HighFree:          280 kB
LowTotal:       903652 kB
LowFree:        727728 kB
SwapTotal:     2097136 kB
SwapFree:      2095368 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5812 kB
Slab:            16308 kB
Committed_AS:    92716 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:15:07 (client local time) WITH STATUS 1 IN 114.951 SECONDS
stats: 24753 7 114.951 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc
#### 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
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.87 0.92 0.90 2/55 20817
Raw data (stat): 20817 (runsolver) R 20816 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 749994661 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0004 s]
Raw data (loadavg): 0.89 0.93 0.90 2/55 20817
Raw data (stat): 20817 (pb2sat) R 20816 8378 8377 0 -1 0 28753 0 0 0 938 60 0 0 25 0 1 0 749994661 85823488 17732 4294967295 134512640 135726644 3221224592 3221147264 134810229 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 20953 17733 300 300 0 20653 0
vsize: 83812
[startup+20.0015 s]
Raw data (loadavg): 0.90 0.93 0.90 2/55 20817
Raw data (stat): 20817 (pb2sat) R 20816 8378 8377 0 -1 0 56598 0 0 0 1887 111 0 0 25 0 1 0 749994661 171995136 34619 4294967295 134512640 135726644 3221224592 3221148640 134782642 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 41991 34619 300 300 0 41691 0
vsize: 167964
[startup+30.0019 s]
Raw data (loadavg): 0.92 0.93 0.90 2/55 20817
Raw data (stat): 20817 (pb2sat) R 20816 8378 8377 0 -1 0 95102 0 0 0 2812 187 0 0 25 0 1 0 749994661 293789696 51452 4294967295 134512640 135726644 3221224592 3221150464 134810375 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 71726 51452 300 300 0 71426 0
vsize: 286904
[startup+40.0017 s]
Raw data (loadavg): 0.93 0.93 0.91 2/55 20817
Raw data (stat): 20817 (pb2sat) R 20816 8378 8377 0 -1 0 110367 0 0 0 3785 214 0 0 25 0 1 0 749994661 341610496 66497 4294967295 134512640 135726644 3221224592 3221149756 135297992 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 83401 66498 300 300 0 83101 0
vsize: 333604
[startup+50.0026 s]
Raw data (loadavg): 0.94 0.93 0.91 2/55 20817
Raw data (stat): 20817 (pb2sat) R 20816 8378 8377 0 -1 0 140719 0 0 0 4731 268 0 0 25 0 1 0 749994661 531226624 96205 4294967295 134512640 135726644 3221224592 3221151120 134771789 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 129694 96207 300 300 0 129394 0
vsize: 518776
[startup+60.0023 s]
Raw data (loadavg): 0.95 0.93 0.91 2/55 20817
Raw data (stat): 20817 (pb2sat) R 20816 8378 8377 0 -1 0 188366 0 0 0 5630 369 0 0 25 0 1 0 749994661 587755520 100146 4294967295 134512640 135726644 3221224592 3221149512 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 143495 100146 300 300 0 143195 0
vsize: 573980
[startup+70.0034 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 20817
Raw data (stat): 20817 (pb2sat) R 20816 8378 8377 0 -1 0 198778 0 0 0 6609 390 0 0 25 0 1 0 749994661 621309952 110364 4294967295 134512640 135726644 3221224592 3221149496 135280732 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 151687 110364 300 300 0 151387 0
vsize: 606748
[startup+80.0042 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 20817
Raw data (stat): 20817 (pb2sat) R 20816 8378 8377 0 -1 0 215947 0 0 0 7577 423 0 0 25 0 1 0 749994661 642260992 127309 4294967295 134512640 135726644 3221224592 3221153088 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 156802 127309 300 300 0 156502 0
vsize: 627208
[startup+90.0037 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 20817
Raw data (stat): 20817 (pb2sat) R 20816 8378 8377 0 -1 0 234790 0 0 0 8541 459 0 0 25 0 1 0 749994661 671010816 145930 4294967295 134512640 135726644 3221224592 3221150652 134604454 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 163821 145931 300 300 0 163521 0
vsize: 655284
[startup+100.004 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 20817
Raw data (stat): 20817 (pb2sat) R 20816 8378 8377 0 -1 0 249848 0 0 0 9511 489 0 0 25 0 1 0 749994661 743837696 160811 4294967295 134512640 135726644 3221224592 3221151360 134780435 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 181601 160811 300 300 0 181301 0
vsize: 726404
[startup+110.003 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 20817
Raw data (stat): 20817 (pb2sat) R 20816 8378 8377 0 -1 0 258022 0 0 0 10483 517 0 0 25 0 1 0 749994661 396337152 96201 4294967295 134512640 135726644 3221224592 3221222780 135277538 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 96762 96201 300 300 0 96462 0
vsize: 387048
[startup+114.944 s]
Raw data (loadavg): 0.98 0.94 0.91 1/54 20817
Raw data (stat): 20817 (pb2sat) R 20816 8378 8377 0 -1 0 258022 0 0 0 10483 517 0 0 25 0 1 0 749994661 396337152 96201 4294967295 134512640 135726644 3221224592 3221222780 135277538 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 96762 96201 300 300 0 96462 0
vsize: 0

Child status: 1
Real time (s): 114.944
CPU time (s): 114.951
CPU user time (s): 109.572
CPU system time (s): 5.37818
CPU usage (%): 100.005
Max. virtual memory (Kb): 726404
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####