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-scfxm3.opb
MD5SUM4386d3a42d53adecf557a6eee4db5bf4
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 2070
Biggest coefficient in the objective function 5368709120
Number of bits for the biggest coefficient in the objective function 33
Sum of the numbers in the objective function 421980536439
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 53687091200000
Number of bits of the biggest number in a constraint 46
Biggest sum of numbers in a constraint 326830904793855
Number of bits of the biggest sum of numbers49
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark19.0541
Number of variables41130
Total number of constraints990
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 constraints990
Minimum length of a constraint30
Maximum length of a constraint1710

Trace number 9912

Launcher Data

LAUNCH ON wulflinc29 THE 2005-09-23 16:09:40 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8664 boxname=wulflinc29 idbench=460 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  4386d3a42d53adecf557a6eee4db5bf4  /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-20-10-scfxm3.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-20-10-scfxm3.opb
IDLAUNCH: 8664
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.077
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		: 451.077
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:        923572 kB
Buffers:         11576 kB
Cached:          82128 kB
SwapCached:          0 kB
Active:          48816 kB
Inactive:        47788 kB
HighTotal:      131008 kB
HighFree:        49336 kB
LowTotal:       903652 kB
LowFree:        874236 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:             8872 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:11:36 (client local time) WITH STATUS 1 IN 114.045 SECONDS
stats: 8664 7 114.045 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/8324/stat): 8324 (pb2sat) R 8323 8324 4005 0 -1 0 18 0 0 0 0 0 0 0 19 0 1 0 21477940 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8324/statm): 373 2 364 364 0 9 0
[pid=8324] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-20-10-scfxm3.opb

[startup+10.002 s]
Raw data (loadavg): 0.93 0.97 0.94 2/55 8324
Raw data (/proc/8324/stat): 8324 (pb2sat) R 8323 8324 4005 0 -1 0 30332 0 0 0 930 65 0 0 25 0 1 0 21477940 96608256 19197 4294967295 134512640 135987407 3221224560 3221079536 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8324/statm): 23586 19197 364 364 0 23222 0
[pid=8324] vsize: 94344
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 94344

[startup+20.0028 s]
Raw data (loadavg): 0.94 0.97 0.94 2/55 8324
Raw data (/proc/8324/stat): 8324 (pb2sat) R 8323 8324 4005 0 -1 0 60368 0 0 0 1870 123 0 0 25 0 1 0 21477940 191488000 38028 4294967295 134512640 135987407 3221224560 3221081540 134537546 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8324/statm): 46750 38028 364 364 0 46386 0
[pid=8324] vsize: 187000
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 187000

[startup+30.0036 s]
Raw data (loadavg): 0.95 0.97 0.94 2/55 8324
Raw data (/proc/8324/stat): 8324 (pb2sat) R 8323 8324 4005 0 -1 0 102286 0 0 0 2779 210 0 0 25 0 1 0 21477940 322703360 57758 4294967295 134512640 135987407 3221224560 3221080880 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8324/statm): 78785 57758 364 364 0 78421 0
[pid=8324] vsize: 315140
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 315140

[startup+40.0044 s]
Raw data (loadavg): 0.95 0.97 0.94 2/55 8324
Raw data (/proc/8324/stat): 8324 (pb2sat) R 8323 8324 4005 0 -1 0 119681 0 0 0 3744 244 0 0 25 0 1 0 21477940 380727296 74949 4294967295 134512640 135987407 3221224560 3221082528 134637036 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8324/statm): 92951 74949 364 364 0 92587 0
[pid=8324] vsize: 371804
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 371804

[startup+50.0052 s]
Raw data (loadavg): 0.96 0.97 0.94 2/55 8324
Raw data (/proc/8324/stat): 8324 (pb2sat) R 8323 8324 4005 0 -1 0 138063 0 0 0 4707 280 0 0 25 0 1 0 21477940 405192704 93108 4294967295 134512640 135987407 3221224560 3221081776 134877889 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8324/statm): 98924 93108 364 364 0 98560 0
[pid=8324] vsize: 395696
Current children cumulated CPU time (s) 49.87
Current children cumulated vsize (Kb) 395696

[startup+60.0049 s]
Raw data (loadavg): 0.97 0.97 0.94 2/55 8324
Raw data (/proc/8324/stat): 8324 (pb2sat) R 8323 8324 4005 0 -1 0 202813 0 0 0 5574 409 0 0 25 0 1 0 21477940 641798144 113717 4294967295 134512640 135987407 3221224560 3221088656 134558959 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8324/statm): 156689 113717 364 364 0 156325 0
[pid=8324] vsize: 626756
Current children cumulated CPU time (s) 59.83
Current children cumulated vsize (Kb) 626756

[startup+70.0057 s]
Raw data (loadavg): 0.97 0.97 0.94 2/55 8324
Raw data (/proc/8324/stat): 8324 (pb2sat) R 8323 8324 4005 0 -1 0 218354 0 0 0 6538 442 0 0 25 0 1 0 21477940 696320000 129071 4294967295 134512640 135987407 3221224560 3221085584 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8324/statm): 170000 129071 364 364 0 169636 0
[pid=8324] vsize: 680000
Current children cumulated CPU time (s) 69.8
Current children cumulated vsize (Kb) 680000

[startup+80.0065 s]
Raw data (loadavg): 0.98 0.97 0.94 2/55 8324
Raw data (/proc/8324/stat): 8324 (pb2sat) R 8323 8324 4005 0 -1 0 236557 0 0 0 7499 478 0 0 25 0 1 0 21477940 720654336 147054 4294967295 134512640 135987407 3221224560 3221088824 134876433 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8324/statm): 175941 147054 364 364 0 175577 0
[pid=8324] vsize: 703764
Current children cumulated CPU time (s) 79.77
Current children cumulated vsize (Kb) 703764

[startup+90.0063 s]
Raw data (loadavg): 0.98 0.97 0.94 2/55 8324
Raw data (/proc/8324/stat): 8324 (pb2sat) R 8323 8324 4005 0 -1 0 254516 0 0 0 8465 510 0 0 25 0 1 0 21477940 744443904 164796 4294967295 134512640 135987407 3221224560 3221086252 135479982 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8324/statm): 181749 164796 364 364 0 181385 0
[pid=8324] vsize: 726996
Current children cumulated CPU time (s) 89.75
Current children cumulated vsize (Kb) 726996

[startup+100.007 s]
Raw data (loadavg): 0.98 0.97 0.94 2/55 8324
Raw data (/proc/8324/stat): 8324 (pb2sat) R 8323 8324 4005 0 -1 0 268541 0 0 0 9437 536 0 0 25 0 1 0 21477940 813182976 178651 4294967295 134512640 135987407 3221224560 3221089600 134537552 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8324/statm): 198531 178651 364 364 0 198167 0
[pid=8324] vsize: 794124
Current children cumulated CPU time (s) 99.73
Current children cumulated vsize (Kb) 794124

[startup+110.008 s]
Raw data (loadavg): 0.98 0.97 0.94 2/55 8324
Raw data (/proc/8324/stat): 8324 (pb2sat) R 8323 8324 4005 0 -1 0 281151 0 0 0 10409 563 0 0 25 0 1 0 21477940 671334400 161589 4294967295 134512640 135987407 3221224560 3221223424 134875184 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8324/statm): 163900 161589 364 364 0 163536 0
[pid=8324] vsize: 655600
Current children cumulated CPU time (s) 109.72
Current children cumulated vsize (Kb) 655600
One traced child (pid=8324) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 114.324
CPU time (s): 114.045
CPU user time (s): 108.069
CPU system time (s): 5.97609
CPU usage (%): 99.756
Max. virtual memory (cumulated for all children) (Kb): 794124

Verifier Data

ERROR: no interpretation found !