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-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-kb2.opb
MD5SUMcdf1de396fe048a09eaf2f98435758ef
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 48
Biggest coefficient in the objective function 4325376
Number of bits for the biggest coefficient in the objective function 23
Sum of the numbers in the objective function 12058535
Number of bits of the sum of numbers in the objective function 24
Biggest number in a constraint 5715913739337728
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 75299293548900036
Number of bits of the biggest sum of numbers57
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1229.44
Number of variables1096
Total number of constraints52
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 constraints52
Minimum length of a constraint13
Maximum length of a constraint300

Trace number 9894

Launcher Data

LAUNCH ON wulflinc5 THE 2005-09-23 16:07:07 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8644 boxname=wulflinc5 idbench=440 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  cdf1de396fe048a09eaf2f98435758ef  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-kb2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-kb2.opb
IDLAUNCH: 8644
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.158
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		: 451.158
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:        935600 kB
Buffers:         14756 kB
Cached:          65756 kB
SwapCached:          0 kB
Active:          44072 kB
Inactive:        39284 kB
HighTotal:      131008 kB
HighFree:        61348 kB
LowTotal:       903652 kB
LowFree:        874252 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:            10248 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:08:52 (client local time) WITH STATUS 1 IN 104.076 SECONDS
stats: 8644 7 104.076 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/8339/stat): 8339 (pb2sat) R 8338 8339 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21516936 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8339/statm): 373 2 364 364 0 9 0
[pid=8339] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-kb2.opb

[startup+10.0023 s]
Raw data (loadavg): 0.93 0.95 0.98 2/55 8339
Raw data (/proc/8339/stat): 8339 (pb2sat) R 8338 8339 4060 0 -1 0 30983 0 0 0 927 69 0 0 25 0 1 0 21516936 97808384 19816 4294967295 134512640 135987407 3221224560 3221128672 134887322 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8339/statm): 23879 19816 364 364 0 23515 0
[pid=8339] vsize: 95516
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 95516

[startup+20.0031 s]
Raw data (loadavg): 0.94 0.96 0.98 2/55 8339
Raw data (/proc/8339/stat): 8339 (pb2sat) R 8338 8339 4060 0 -1 0 61658 0 0 0 1863 130 0 0 25 0 1 0 21516936 194400256 39034 4294967295 134512640 135987407 3221224560 3221128128 134866122 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8339/statm): 47461 39034 364 364 0 47097 0
[pid=8339] vsize: 189844
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 189844

[startup+30.0038 s]
Raw data (loadavg): 0.95 0.96 0.98 2/55 8339
Raw data (/proc/8339/stat): 8339 (pb2sat) R 8338 8339 4060 0 -1 0 103354 0 0 0 2778 211 0 0 25 0 1 0 21516936 377614336 70019 4294967295 134512640 135987407 3221224560 3221126320 134887487 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8339/statm): 92191 70019 364 364 0 91827 0
[pid=8339] vsize: 368764
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 368764

[startup+40.0045 s]
Raw data (loadavg): 0.95 0.96 0.98 2/55 8339
Raw data (/proc/8339/stat): 8339 (pb2sat) R 8338 8339 4060 0 -1 0 122184 0 0 0 3738 250 0 0 25 0 1 0 21516936 385974272 76334 4294967295 134512640 135987407 3221224560 3221127240 134864165 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8339/statm): 94232 76334 364 364 0 93868 0
[pid=8339] vsize: 376928
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 376928

[startup+50.0053 s]
Raw data (loadavg): 0.96 0.96 0.98 2/55 8339
Raw data (/proc/8339/stat): 8339 (pb2sat) R 8338 8339 4060 0 -1 0 166551 0 0 0 4649 332 0 0 25 0 1 0 21516936 527384576 99372 4294967295 134512640 135987407 3221224560 3221126424 134854861 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8339/statm): 128756 99372 364 364 0 128392 0
[pid=8339] vsize: 515024
Current children cumulated CPU time (s) 49.81
Current children cumulated vsize (Kb) 515024

[startup+60.006 s]
Raw data (loadavg): 0.97 0.96 0.98 2/55 8339
Raw data (/proc/8339/stat): 8339 (pb2sat) R 8338 8339 4060 0 -1 0 184988 0 0 0 5615 365 0 0 25 0 1 0 21516936 553607168 117571 4294967295 134512640 135987407 3221224560 3221128288 134537496 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8339/statm): 135158 117571 364 364 0 134794 0
[pid=8339] vsize: 540632
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 540632

[startup+70.0078 s]
Raw data (loadavg): 0.97 0.96 0.98 2/55 8339
Raw data (/proc/8339/stat): 8339 (pb2sat) R 8338 8339 4060 0 -1 0 225424 0 0 0 6526 452 0 0 25 0 1 0 21516936 677519360 133229 4294967295 134512640 135987407 3221224560 3221126908 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8339/statm): 165410 133229 364 364 0 165046 0
[pid=8339] vsize: 661640
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 661640

[startup+80.0085 s]
Raw data (loadavg): 0.98 0.96 0.98 2/55 8339
Raw data (/proc/8339/stat): 8339 (pb2sat) R 8338 8339 4060 0 -1 0 240781 0 0 0 7493 483 0 0 25 0 1 0 21516936 733786112 148392 4294967295 134512640 135987407 3221224560 3221130000 134558636 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8339/statm): 179147 148392 364 364 0 178783 0
[pid=8339] vsize: 716588
Current children cumulated CPU time (s) 79.76
Current children cumulated vsize (Kb) 716588

[startup+90.0092 s]
Raw data (loadavg): 0.98 0.96 0.98 2/55 8339
Raw data (/proc/8339/stat): 8339 (pb2sat) R 8338 8339 4060 0 -1 0 259238 0 0 0 8458 515 0 0 25 0 1 0 21516936 761667584 166369 4294967295 134512640 135987407 3221224560 3221127580 134636959 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8339/statm): 185954 166369 364 364 0 185590 0
[pid=8339] vsize: 743816
Current children cumulated CPU time (s) 89.73
Current children cumulated vsize (Kb) 743816

[startup+100.009 s]
Raw data (loadavg): 0.98 0.96 0.98 2/55 8339
Raw data (/proc/8339/stat): 8339 (pb2sat) R 8338 8339 4060 0 -1 0 272227 0 0 0 9417 554 0 0 25 0 1 0 21516936 472150016 114260 4294967295 134512640 135987407 3221224560 3221223224 135477294 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8339/statm): 115271 114260 364 364 0 114907 0
[pid=8339] vsize: 461084
Current children cumulated CPU time (s) 99.71
Current children cumulated vsize (Kb) 461084
One traced child (pid=8339) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 104.365
CPU time (s): 104.076
CPU user time (s): 98.2841
CPU system time (s): 5.79212
CPU usage (%): 99.7236
Max. virtual memory (cumulated for all children) (Kb): 743816

Verifier Data

ERROR: no interpretation found !