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-standgub.opb
MD5SUM596bf3240e9419031120c2cbaef1fb61
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 210
Biggest coefficient in the objective function 53687091200
Number of bits for the biggest coefficient in the objective function 36
Sum of the numbers in the objective function 326417514192
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 77387257610240
Number of bits of the biggest number in a constraint 47
Biggest sum of numbers in a constraint 2427818341201528
Number of bits of the biggest sum of numbers52
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables33244
Total number of constraints463
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 constraints463
Minimum length of a constraint11
Maximum length of a constraint22350

Trace number 9945

Launcher Data

LAUNCH ON wulflinc1 THE 2005-09-23 16:15:16 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8698 boxname=wulflinc1 idbench=494 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  596bf3240e9419031120c2cbaef1fb61  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-standgub.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-standgub.opb
IDLAUNCH: 8698
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.228
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		: 451.228
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:        883992 kB
Buffers:         12968 kB
Cached:         119972 kB
SwapCached:          0 kB
Active:          78852 kB
Inactive:        57016 kB
HighTotal:      131008 kB
HighFree:        14644 kB
LowTotal:       903652 kB
LowFree:        869348 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6988 kB
Slab:             9248 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:16:53 (client local time) WITH STATUS 1 IN 96.1804 SECONDS
stats: 8698 7 96.1804 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/9408/stat): 9408 (pb2sat) R 9407 9408 4704 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21569602 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9408/statm): 373 2 364 364 0 9 0
[pid=9408] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-standgub.opb

[startup+10.0014 s]
Raw data (loadavg): 0.93 0.98 0.96 2/55 9408
Raw data (/proc/9408/stat): 9408 (pb2sat) R 9407 9408 4704 0 -1 0 28410 0 0 0 932 65 0 0 25 0 1 0 21569602 81899520 17246 4294967295 134512640 135987407 3221224560 3221157152 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9408/statm): 19995 17246 364 364 0 19631 0
[pid=9408] vsize: 79980
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 79980

[startup+20.0022 s]
Raw data (loadavg): 0.94 0.98 0.96 2/55 9408
Raw data (/proc/9408/stat): 9408 (pb2sat) R 9407 9408 4704 0 -1 0 57405 0 0 0 1866 128 0 0 25 0 1 0 21569602 160153600 34980 4294967295 134512640 135987407 3221224560 3221162800 134878358 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9408/statm): 39100 34980 364 364 0 38736 0
[pid=9408] vsize: 156400
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 156400

[startup+30.003 s]
Raw data (loadavg): 0.95 0.98 0.96 2/55 9408
Raw data (/proc/9408/stat): 9408 (pb2sat) R 9407 9408 4704 0 -1 0 97677 0 0 0 2778 214 0 0 25 0 1 0 21569602 310984704 53031 4294967295 134512640 135987407 3221224560 3221177132 134855045 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9408/statm): 75924 53031 364 364 0 75560 0
[pid=9408] vsize: 303696
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 303696

[startup+40.0038 s]
Raw data (loadavg): 0.96 0.98 0.96 2/55 9408
Raw data (/proc/9408/stat): 9408 (pb2sat) R 9407 9408 4704 0 -1 0 115193 0 0 0 3734 258 0 0 25 0 1 0 21569602 316661760 70254 4294967295 134512640 135987407 3221224560 3221184632 135486713 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9408/statm): 77310 70254 364 364 0 76946 0
[pid=9408] vsize: 309240
Current children cumulated CPU time (s) 39.92
Current children cumulated vsize (Kb) 309240

[startup+50.0046 s]
Raw data (loadavg): 0.96 0.98 0.96 2/55 9408
Raw data (/proc/9408/stat): 9408 (pb2sat) R 9407 9408 4704 0 -1 0 182067 0 0 0 4583 404 0 0 25 0 1 0 21569602 557334528 92953 4294967295 134512640 135987407 3221224560 3220901116 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9408/statm): 136068 92953 364 364 0 135704 0
[pid=9408] vsize: 544272
Current children cumulated CPU time (s) 49.87
Current children cumulated vsize (Kb) 544272

[startup+60.0043 s]
Raw data (loadavg): 0.97 0.98 0.96 2/55 9408
Raw data (/proc/9408/stat): 9408 (pb2sat) R 9407 9408 4704 0 -1 0 199615 0 0 0 5542 443 0 0 25 0 1 0 21569602 615800832 110278 4294967295 134512640 135987407 3221224560 3220906056 135487877 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9408/statm): 150342 110278 364 364 0 149978 0
[pid=9408] vsize: 601368
Current children cumulated CPU time (s) 59.85
Current children cumulated vsize (Kb) 601368

[startup+70.0051 s]
Raw data (loadavg): 0.97 0.98 0.96 2/55 9408
Raw data (/proc/9408/stat): 9408 (pb2sat) R 9407 9408 4704 0 -1 0 219712 0 0 0 6498 484 0 0 25 0 1 0 21569602 644636672 130123 4294967295 134512640 135987407 3221224560 3220903184 134887796 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9408/statm): 157382 130123 364 364 0 157018 0
[pid=9408] vsize: 629528
Current children cumulated CPU time (s) 69.82
Current children cumulated vsize (Kb) 629528

[startup+80.0059 s]
Raw data (loadavg): 0.98 0.98 0.96 2/55 9408
Raw data (/proc/9408/stat): 9408 (pb2sat) R 9407 9408 4704 0 -1 0 239242 0 0 0 7459 521 0 0 25 0 1 0 21569602 672559104 149408 4294967295 134512640 135987407 3221224560 3220900076 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9408/statm): 164199 149408 364 364 0 163835 0
[pid=9408] vsize: 656796
Current children cumulated CPU time (s) 79.8
Current children cumulated vsize (Kb) 656796

[startup+90.0067 s]
Raw data (loadavg): 0.98 0.98 0.96 2/55 9408
Raw data (/proc/9408/stat): 9408 (pb2sat) R 9407 9408 4704 0 -1 0 254390 0 0 0 8425 553 0 0 25 0 1 0 21569602 744382464 164367 4294967295 134512640 135987407 3221224560 3220901420 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9408/statm): 181734 164367 364 364 0 181370 0
[pid=9408] vsize: 726936
Current children cumulated CPU time (s) 89.78
Current children cumulated vsize (Kb) 726936
One traced child (pid=9408) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 96.4037
CPU time (s): 96.1804
CPU user time (s): 90.2693
CPU system time (s): 5.9111
CPU usage (%): 99.7684
Max. virtual memory (cumulated for all children) (Kb): 726936

Verifier Data

ERROR: no interpretation found !