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).
    Note that some very long lines in this section may be truncated by your web browser !
  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

Namemps-v2-13-7/MIPLIB/miplib3/normalized-mps-v2-13-7-mod008.opb
MD5SUM581d778a36086562107993896110e0a2
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 361
Optimality of the best value was proved NO
Number of terms in the objective function 319
Biggest coefficient in the objective function 87
Number of bits for the biggest coefficient in the objective function 7
Sum of the numbers in the objective function 23554
Number of bits of the sum of numbers in the objective function 15
Biggest number in a constraint 22000
Number of bits of the biggest number in a constraint 15
Biggest sum of numbers in a constraint 1027256
Number of bits of the biggest sum of numbers20
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1195.05
Number of variables319
Total number of constraints325
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)319
Number of constraints which are nor clauses,nor cardinality constraints6
Minimum length of a constraint1
Maximum length of a constraint231

Trace number 10506

Launcher Data

LAUNCH ON wulflinc4 THE 2005-09-23 18:40:19 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9262 boxname=wulflinc4 idbench=1058 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  581d778a36086562107993896110e0a2  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-mod008.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-mod008.opb
IDLAUNCH: 9262
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        957944 kB
Buffers:           188 kB
Cached:          59244 kB
SwapCached:          0 kB
Active:          14072 kB
Inactive:        48264 kB
HighTotal:      131008 kB
HighFree:        67396 kB
LowTotal:       903652 kB
LowFree:        890548 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8500 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 18:42:08 (client local time) WITH STATUS 1 IN 108.626 SECONDS
stats: 9262 7 108.626 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/10649/stat): 10649 (pb2sat) R 10648 10649 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22437560 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10649/statm): 373 2 364 364 0 9 0
[pid=10649] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-mod008.opb

[startup+10.0016 s]
Raw data (loadavg): 0.88 0.97 0.95 2/55 10649
Raw data (/proc/10649/stat): 10649 (pb2sat) R 10648 10649 4060 0 -1 0 32304 0 0 0 925 70 0 0 25 0 1 0 22437560 100126720 21153 4294967295 134512640 135987407 3221224560 3221150368 134878604 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10649/statm): 24445 21153 364 364 0 24081 0
[pid=10649] vsize: 97780
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 97780

[startup+20.0024 s]
Raw data (loadavg): 0.90 0.97 0.95 2/55 10649
Raw data (/proc/10649/stat): 10649 (pb2sat) R 10648 10649 4060 0 -1 0 63311 0 0 0 1862 131 0 0 25 0 1 0 22437560 197464064 40950 4294967295 134512640 135987407 3221224560 3221153392 134878731 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10649/statm): 48209 40950 364 364 0 47845 0
[pid=10649] vsize: 192836
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 192836

[startup+30.0033 s]
Raw data (loadavg): 0.92 0.97 0.95 2/55 10649
Raw data (/proc/10649/stat): 10649 (pb2sat) R 10648 10649 4060 0 -1 0 105612 0 0 0 2773 215 0 0 25 0 1 0 22437560 328540160 61054 4294967295 134512640 135987407 3221224560 3221156700 135481327 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10649/statm): 80210 61054 364 364 0 79846 0
[pid=10649] vsize: 320840
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 320840

[startup+40.0032 s]
Raw data (loadavg): 0.93 0.97 0.95 2/55 10649
Raw data (/proc/10649/stat): 10649 (pb2sat) R 10648 10649 4060 0 -1 0 123507 0 0 0 3737 249 0 0 25 0 1 0 22437560 386445312 78732 4294967295 134512640 135987407 3221224560 3221167824 134878853 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10649/statm): 94347 78732 364 364 0 93983 0
[pid=10649] vsize: 377388
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 377388

[startup+50.004 s]
Raw data (loadavg): 0.94 0.97 0.95 2/55 10649
Raw data (/proc/10649/stat): 10649 (pb2sat) R 10648 10649 4060 0 -1 0 152737 0 0 0 4676 307 0 0 25 0 1 0 22437560 572313600 107349 4294967295 134512640 135987407 3221224560 3221169916 135482108 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10649/statm): 139725 107349 364 364 0 139361 0
[pid=10649] vsize: 558900
Current children cumulated CPU time (s) 49.83
Current children cumulated vsize (Kb) 558900

[startup+60.0039 s]
Raw data (loadavg): 0.95 0.97 0.95 2/55 10649
Raw data (/proc/10649/stat): 10649 (pb2sat) R 10648 10649 4060 0 -1 0 207952 0 0 0 5560 421 0 0 25 0 1 0 22437560 650625024 118794 4294967295 134512640 135987407 3221224560 3221179500 135499903 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10649/statm): 158844 118794 364 364 0 158480 0
[pid=10649] vsize: 635376
Current children cumulated CPU time (s) 59.81
Current children cumulated vsize (Kb) 635376

[startup+70.0048 s]
Raw data (loadavg): 0.95 0.97 0.95 2/55 10649
Raw data (/proc/10649/stat): 10649 (pb2sat) R 10648 10649 4060 0 -1 0 224167 0 0 0 6526 452 0 0 25 0 1 0 22437560 706797568 134810 4294967295 134512640 135987407 3221224560 3221175856 134856445 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10649/statm): 172558 134810 364 364 0 172194 0
[pid=10649] vsize: 690232
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 690232

[startup+80.0056 s]
Raw data (loadavg): 0.96 0.97 0.95 2/55 10649
Raw data (/proc/10649/stat): 10649 (pb2sat) R 10648 10649 4060 0 -1 0 242775 0 0 0 7491 485 0 0 25 0 1 0 22437560 732770304 153190 4294967295 134512640 135987407 3221224560 3221171992 134765285 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10649/statm): 178899 153190 364 364 0 178535 0
[pid=10649] vsize: 715596
Current children cumulated CPU time (s) 79.76
Current children cumulated vsize (Kb) 715596

[startup+90.0055 s]
Raw data (loadavg): 0.97 0.97 0.95 2/55 10649
Raw data (/proc/10649/stat): 10649 (pb2sat) R 10648 10649 4060 0 -1 0 261499 0 0 0 8455 518 0 0 25 0 1 0 22437560 758775808 171681 4294967295 134512640 135987407 3221224560 3221190128 134636933 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10649/statm): 185248 171681 364 364 0 184884 0
[pid=10649] vsize: 740992
Current children cumulated CPU time (s) 89.73
Current children cumulated vsize (Kb) 740992

[startup+100.006 s]
Raw data (loadavg): 0.97 0.97 0.95 2/55 10649
Raw data (/proc/10649/stat): 10649 (pb2sat) R 10648 10649 4060 0 -1 0 276267 0 0 0 9427 545 0 0 25 0 1 0 22437560 829837312 186265 4294967295 134512640 135987407 3221224560 3221190076 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10649/statm): 202597 186265 364 364 0 202233 0
[pid=10649] vsize: 810388
Current children cumulated CPU time (s) 99.72
Current children cumulated vsize (Kb) 810388
One traced child (pid=10649) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 108.916
CPU time (s): 108.626
CPU user time (s): 102.723
CPU system time (s): 5.9031
CPU usage (%): 99.7339
Max. virtual memory (cumulated for all children) (Kb): 810388

Verifier Data

ERROR: no interpretation found !