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-stocfor1.opb
MD5SUM3a8db646b8e36906753a001811d21061
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 540
Biggest coefficient in the objective function 155423080448000
Number of bits for the biggest coefficient in the objective function 48
Sum of the numbers in the objective function 3843659123611725
Number of bits of the sum of numbers in the objective function 52
Biggest number in a constraint 155423080448000
Number of bits of the biggest number in a constraint 48
Biggest sum of numbers in a constraint 3843659123611725
Number of bits of the biggest sum of numbers52
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.704892
Number of variables2220
Total number of constraints117
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 constraints117
Minimum length of a constraint20
Maximum length of a constraint160

Trace number 10318

Launcher Data

LAUNCH ON wulflinc1 THE 2005-09-23 17:50:30 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9069 boxname=wulflinc1 idbench=865 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  3a8db646b8e36906753a001811d21061  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-stocfor1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-stocfor1.opb
IDLAUNCH: 9069
/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:        882564 kB
Buffers:         13520 kB
Cached:         121188 kB
SwapCached:          0 kB
Active:          76920 kB
Inactive:        60660 kB
HighTotal:      131008 kB
HighFree:        13440 kB
LowTotal:       903652 kB
LowFree:        869124 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6988 kB
Slab:             9080 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:52:14 (client local time) WITH STATUS 1 IN 103.697 SECONDS
stats: 9069 7 103.697 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/10697/stat): 10697 (pb2sat) R 10696 10697 4704 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22141038 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10697/statm): 373 2 364 364 0 9 0
[pid=10697] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-stocfor1.opb

[startup+10.002 s]
Raw data (loadavg): 0.93 0.95 0.92 2/55 10697
Raw data (/proc/10697/stat): 10697 (pb2sat) R 10696 10697 4704 0 -1 0 32027 0 0 0 926 70 0 0 25 0 1 0 22141038 99299328 20872 4294967295 134512640 135987407 3221224560 3221175968 134537357 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10697/statm): 24243 20872 364 364 0 23879 0
[pid=10697] vsize: 96972
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 96972

[startup+20.0028 s]
Raw data (loadavg): 0.94 0.95 0.92 2/55 10697
Raw data (/proc/10697/stat): 10697 (pb2sat) R 10696 10697 4704 0 -1 0 63582 0 0 0 1865 128 0 0 25 0 1 0 22141038 196513792 41199 4294967295 134512640 135987407 3221224560 3221175296 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10697/statm): 47977 41199 364 364 0 47613 0
[pid=10697] vsize: 191908
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 191908

[startup+30.0036 s]
Raw data (loadavg): 0.95 0.95 0.92 2/55 10697
Raw data (/proc/10697/stat): 10697 (pb2sat) R 10696 10697 4704 0 -1 0 107097 0 0 0 2771 220 0 0 25 0 1 0 22141038 330747904 62504 4294967295 134512640 135987407 3221224560 3221176448 134855042 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10697/statm): 80749 62504 364 364 0 80385 0
[pid=10697] vsize: 322996
Current children cumulated CPU time (s) 29.91
Current children cumulated vsize (Kb) 322996

[startup+40.0044 s]
Raw data (loadavg): 0.95 0.95 0.92 2/55 10697
Raw data (/proc/10697/stat): 10697 (pb2sat) R 10696 10697 4704 0 -1 0 125846 0 0 0 3732 257 0 0 25 0 1 0 22141038 389578752 81018 4294967295 134512640 135987407 3221224560 3221176880 134878696 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10697/statm): 95112 81018 364 364 0 94748 0
[pid=10697] vsize: 380448
Current children cumulated CPU time (s) 39.89
Current children cumulated vsize (Kb) 380448

[startup+50.0052 s]
Raw data (loadavg): 0.96 0.95 0.92 2/55 10697
Raw data (/proc/10697/stat): 10697 (pb2sat) R 10696 10697 4704 0 -1 0 170825 0 0 0 4637 346 0 0 25 0 1 0 22141038 534306816 106376 4294967295 134512640 135987407 3221224560 3221180160 134865981 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10697/statm): 130446 106376 364 364 0 130082 0
[pid=10697] vsize: 521784
Current children cumulated CPU time (s) 49.83
Current children cumulated vsize (Kb) 521784

[startup+60.006 s]
Raw data (loadavg): 0.97 0.96 0.92 2/55 10697
Raw data (/proc/10697/stat): 10697 (pb2sat) R 10696 10697 4704 0 -1 0 212472 0 0 0 5547 435 0 0 25 0 1 0 22141038 657813504 123232 4294967295 134512640 135987407 3221224560 3221178988 134669188 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10697/statm): 160599 123232 364 364 0 160235 0
[pid=10697] vsize: 642396
Current children cumulated CPU time (s) 59.82
Current children cumulated vsize (Kb) 642396

[startup+70.0068 s]
Raw data (loadavg): 0.97 0.96 0.92 2/55 10697
Raw data (/proc/10697/stat): 10697 (pb2sat) R 10696 10697 4704 0 -1 0 229155 0 0 0 6511 469 0 0 25 0 1 0 22141038 713805824 139707 4294967295 134512640 135987407 3221224560 3221180672 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10697/statm): 174269 139707 364 364 0 173905 0
[pid=10697] vsize: 697076
Current children cumulated CPU time (s) 69.8
Current children cumulated vsize (Kb) 697076

[startup+80.0075 s]
Raw data (loadavg): 0.98 0.96 0.92 2/55 10697
Raw data (/proc/10697/stat): 10697 (pb2sat) R 10696 10697 4704 0 -1 0 248780 0 0 0 7471 507 0 0 25 0 1 0 22141038 740433920 159089 4294967295 134512640 135987407 3221224560 3221176652 135480449 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10697/statm): 180770 159089 364 364 0 180406 0
[pid=10697] vsize: 723080
Current children cumulated CPU time (s) 79.78
Current children cumulated vsize (Kb) 723080

[startup+90.0083 s]
Raw data (loadavg): 0.98 0.96 0.92 2/55 10697
Raw data (/proc/10697/stat): 10697 (pb2sat) R 10696 10697 4704 0 -1 0 268330 0 0 0 8433 544 0 0 25 0 1 0 22141038 766656512 178394 4294967295 134512640 135987407 3221224560 3221182324 134637037 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10697/statm): 187172 178394 364 364 0 186808 0
[pid=10697] vsize: 748688
Current children cumulated CPU time (s) 89.77
Current children cumulated vsize (Kb) 748688

[startup+100.008 s]
Raw data (loadavg): 0.98 0.96 0.92 2/55 10697
Raw data (/proc/10697/stat): 10697 (pb2sat) R 10696 10697 4704 0 -1 0 277011 0 0 0 9401 574 0 0 25 0 1 0 22141038 470372352 114099 4294967295 134512640 135987407 3221224560 3221223224 135477236 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10697/statm): 114837 114099 364 364 0 114473 0
[pid=10697] vsize: 459348
Current children cumulated CPU time (s) 99.75
Current children cumulated vsize (Kb) 459348
One traced child (pid=10697) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 103.947
CPU time (s): 103.697
CPU user time (s): 97.7101
CPU system time (s): 5.98709
CPU usage (%): 99.76
Max. virtual memory (cumulated for all children) (Kb): 748688

Verifier Data

ERROR: no interpretation found !