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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-agg.opb
MD5SUM588d3dc936a55a936d3ebf1e4b7ec631
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 2620
Biggest coefficient in the objective function 5247074304
Number of bits for the biggest coefficient in the objective function 33
Sum of the numbers in the objective function 543106275525
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 22229811200000
Number of bits of the biggest number in a constraint 45
Biggest sum of numbers in a constraint 45187440996225
Number of bits of the biggest sum of numbers46
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.227964
Number of variables3260
Total number of constraints441
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 constraints441
Minimum length of a constraint20
Maximum length of a constraint360

Trace number 10251

Launcher Data

LAUNCH ON wulflinc1 THE 2005-09-23 17:42:45 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8996 boxname=wulflinc1 idbench=792 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  588d3dc936a55a936d3ebf1e4b7ec631  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-agg.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-agg.opb
IDLAUNCH: 8996
/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:        882852 kB
Buffers:         13380 kB
Cached:         120784 kB
SwapCached:          0 kB
Active:          77468 kB
Inactive:        59600 kB
HighTotal:      131008 kB
HighFree:        13832 kB
LowTotal:       903652 kB
LowFree:        869020 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6988 kB
Slab:             9188 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:44:36 (client local time) WITH STATUS 1 IN 110.219 SECONDS
stats: 8996 7 110.219 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/10253/stat): 10253 (pb2sat) R 10252 10253 4704 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22094594 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10253/statm): 373 2 364 364 0 9 0
[pid=10253] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-agg.opb

[startup+10.0015 s]
Raw data (loadavg): 0.93 0.95 0.94 2/55 10253
Raw data (/proc/10253/stat): 10253 (pb2sat) R 10252 10253 4704 0 -1 0 28164 0 0 0 940 56 0 0 25 0 1 0 22094594 87355392 17015 4294967295 134512640 135987407 3221224560 3221198496 134802788 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10253/statm): 21327 17015 364 364 0 20963 0
[pid=10253] vsize: 85308
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 85308

[startup+20.0023 s]
Raw data (loadavg): 0.94 0.96 0.94 2/55 10253
Raw data (/proc/10253/stat): 10253 (pb2sat) R 10252 10253 4704 0 -1 0 58714 0 0 0 1880 114 0 0 25 0 1 0 22094594 183230464 36343 4294967295 134512640 135987407 3221224560 3221203488 134639028 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10253/statm): 44734 36343 364 364 0 44370 0
[pid=10253] vsize: 178936
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 178936

[startup+30.0031 s]
Raw data (loadavg): 0.95 0.96 0.94 2/55 10253
Raw data (/proc/10253/stat): 10253 (pb2sat) R 10252 10253 4704 0 -1 0 100998 0 0 0 2790 200 0 0 25 0 1 0 22094594 315297792 56429 4294967295 134512640 135987407 3221224560 3221198140 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10253/statm): 76977 56429 364 364 0 76613 0
[pid=10253] vsize: 307908
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 307908

[startup+40.0029 s]
Raw data (loadavg): 0.95 0.96 0.94 2/55 10253
Raw data (/proc/10253/stat): 10253 (pb2sat) R 10252 10253 4704 0 -1 0 118710 0 0 0 3753 236 0 0 25 0 1 0 22094594 374177792 73925 4294967295 134512640 135987407 3221224560 3221201856 134537552 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10253/statm): 91352 73925 364 364 0 90988 0
[pid=10253] vsize: 365408
Current children cumulated CPU time (s) 39.89
Current children cumulated vsize (Kb) 365408

[startup+50.0037 s]
Raw data (loadavg): 0.96 0.96 0.94 2/55 10253
Raw data (/proc/10253/stat): 10253 (pb2sat) R 10252 10253 4704 0 -1 0 151326 0 0 0 4686 298 0 0 25 0 1 0 22094594 566792192 105798 4294967295 134512640 135987407 3221224560 3221205760 134856594 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10253/statm): 138377 105800 364 364 0 138013 0
[pid=10253] vsize: 553508
Current children cumulated CPU time (s) 49.84
Current children cumulated vsize (Kb) 553508

[startup+60.0035 s]
Raw data (loadavg): 0.97 0.96 0.94 2/55 10253
Raw data (/proc/10253/stat): 10253 (pb2sat) R 10252 10253 4704 0 -1 0 202465 0 0 0 5571 411 0 0 25 0 1 0 22094594 637108224 113300 4294967295 134512640 135987407 3221224560 3221201248 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10253/statm): 155544 113300 364 364 0 155180 0
[pid=10253] vsize: 622176
Current children cumulated CPU time (s) 59.82
Current children cumulated vsize (Kb) 622176

[startup+70.0032 s]
Raw data (loadavg): 0.97 0.96 0.94 2/55 10253
Raw data (/proc/10253/stat): 10253 (pb2sat) R 10252 10253 4704 0 -1 0 217846 0 0 0 6538 442 0 0 25 0 1 0 22094594 691781632 128490 4294967295 134512640 135987407 3221224560 3221203548 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10253/statm): 168892 128490 364 364 0 168528 0
[pid=10253] vsize: 675568
Current children cumulated CPU time (s) 69.8
Current children cumulated vsize (Kb) 675568

[startup+80.0041 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 10253
Raw data (/proc/10253/stat): 10253 (pb2sat) R 10252 10253 4704 0 -1 0 228138 0 0 0 7519 461 0 0 25 0 1 0 22094594 693649408 138596 4294967295 134512640 135987407 3221224560 3221180272 134878060 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10253/statm): 169348 138596 364 364 0 168984 0
[pid=10253] vsize: 677392
Current children cumulated CPU time (s) 79.8
Current children cumulated vsize (Kb) 677392

[startup+90.0039 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 10253
Raw data (/proc/10253/stat): 10253 (pb2sat) R 10252 10253 4704 0 -1 0 240234 0 0 0 8497 483 0 0 25 0 1 0 22094594 694099968 150470 4294967295 134512640 135987407 3221224560 3221184508 134892452 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10253/statm): 169458 150470 364 364 0 169094 0
[pid=10253] vsize: 677832
Current children cumulated CPU time (s) 89.8
Current children cumulated vsize (Kb) 677832

[startup+100.005 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 10253
Raw data (/proc/10253/stat): 10253 (pb2sat) R 10252 10253 4704 0 -1 0 251322 0 0 0 9476 504 0 0 25 0 1 0 22094594 744775680 161355 4294967295 134512640 135987407 3221224560 3221184208 134877628 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10253/statm): 181830 161355 364 364 0 181466 0
[pid=10253] vsize: 727320
Current children cumulated CPU time (s) 99.8
Current children cumulated vsize (Kb) 727320

[startup+110.005 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 10253
Raw data (/proc/10253/stat): 10253 (pb2sat) R 10252 10253 4704 0 -1 0 256644 0 0 0 10452 528 0 0 25 0 1 0 22094594 389906432 94496 4294967295 134512640 135987407 3221224560 3221223376 134893007 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10253/statm): 95192 94496 364 364 0 94828 0
[pid=10253] vsize: 380768
Current children cumulated CPU time (s) 109.8
Current children cumulated vsize (Kb) 380768
One traced child (pid=10253) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 110.422
CPU time (s): 110.219
CPU user time (s): 104.733
CPU system time (s): 5.48617
CPU usage (%): 99.8161
Max. virtual memory (cumulated for all children) (Kb): 727320

Verifier Data

ERROR: no interpretation found !