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/MIPLIB/miplib2003/normalized-mps-v2-13-7-arki001.opb
MD5SUM458588f978e22d010e8f710d6c38354d
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 21
Biggest coefficient in the objective function 1048576
Number of bits for the biggest coefficient in the objective function 21
Sum of the numbers in the objective function 2097151
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 298325333312000
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 648851746394616
Number of bits of the biggest sum of numbers50
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.249961
Number of variables6423
Total number of constraints2018
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)436
Number of constraints which are nor clauses,nor cardinality constraints1582
Minimum length of a constraint1
Maximum length of a constraint6404

Trace number 10385

Launcher Data

LAUNCH ON wulflinc3 THE 2005-09-23 18:02:49 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9147 boxname=wulflinc3 idbench=943 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  458588f978e22d010e8f710d6c38354d  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-arki001.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-arki001.opb
IDLAUNCH: 9147
/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:        924968 kB
Buffers:         13452 kB
Cached:          78756 kB
SwapCached:          0 kB
Active:          46088 kB
Inactive:        48988 kB
HighTotal:      131008 kB
HighFree:        47964 kB
LowTotal:       903652 kB
LowFree:        877004 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8984 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 18:04:24 (client local time) WITH STATUS 1 IN 95.2175 SECONDS
stats: 9147 7 95.2175 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/10029/stat): 10029 (pb2sat) R 10028 10029 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22212517 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10029/statm): 373 2 364 364 0 9 0
[pid=10029] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-arki001.opb

[startup+10.002 s]
Raw data (loadavg): 0.87 0.97 0.93 2/55 10029
Raw data (/proc/10029/stat): 10029 (pb2sat) R 10028 10029 4060 0 -1 0 31336 0 0 0 930 66 0 0 25 0 1 0 22212517 99647488 20165 4294967295 134512640 135987407 3221224560 3221158192 134537357 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10029/statm): 24328 20165 364 364 0 23964 0
[pid=10029] vsize: 97312
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 97312

[startup+20.0028 s]
Raw data (loadavg): 0.89 0.97 0.93 2/55 10029
Raw data (/proc/10029/stat): 10029 (pb2sat) R 10028 10029 4060 0 -1 0 62545 0 0 0 1865 128 0 0 25 0 1 0 22212517 197439488 40126 4294967295 134512640 135987407 3221224560 3221158824 134638985 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10029/statm): 48203 40126 364 364 0 47839 0
[pid=10029] vsize: 192812
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 192812

[startup+30.0037 s]
Raw data (loadavg): 0.91 0.97 0.93 2/55 10029
Raw data (/proc/10029/stat): 10029 (pb2sat) R 10028 10029 4060 0 -1 0 105775 0 0 0 2779 210 0 0 25 0 1 0 22212517 331243520 60821 4294967295 134512640 135987407 3221224560 3221156476 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10029/statm): 80870 60821 364 364 0 80506 0
[pid=10029] vsize: 323480
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 323480

[startup+40.0045 s]
Raw data (loadavg): 0.92 0.97 0.93 2/55 10029
Raw data (/proc/10029/stat): 10029 (pb2sat) R 10028 10029 4060 0 -1 0 124385 0 0 0 3739 247 0 0 25 0 1 0 22212517 391966720 79178 4294967295 134512640 135987407 3221224560 3221158240 134559266 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10029/statm): 95695 79178 364 364 0 95331 0
[pid=10029] vsize: 382780
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 382780

[startup+50.0054 s]
Raw data (loadavg): 0.93 0.97 0.93 2/55 10029
Raw data (/proc/10029/stat): 10029 (pb2sat) R 10028 10029 4060 0 -1 0 169512 0 0 0 4642 338 0 0 25 0 1 0 22212517 533135360 102686 4294967295 134512640 135987407 3221224560 3221157088 134878604 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10029/statm): 130160 102686 364 364 0 129796 0
[pid=10029] vsize: 520640
Current children cumulated CPU time (s) 49.8
Current children cumulated vsize (Kb) 520640

[startup+60.0052 s]
Raw data (loadavg): 0.94 0.97 0.93 2/55 10029
Raw data (/proc/10029/stat): 10029 (pb2sat) R 10028 10029 4060 0 -1 0 200522 0 0 0 5579 399 0 0 25 0 1 0 22212517 761364480 133445 4294967295 134512640 135987407 3221224560 3221156560 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10029/statm): 185880 133445 364 364 0 185516 0
[pid=10029] vsize: 743520
Current children cumulated CPU time (s) 59.78
Current children cumulated vsize (Kb) 743520

[startup+70.006 s]
Raw data (loadavg): 0.95 0.97 0.93 2/55 10029
Raw data (/proc/10029/stat): 10029 (pb2sat) R 10028 10029 4060 0 -1 0 231030 0 0 0 6516 460 0 0 25 0 1 0 22212517 687325184 139129 4294967295 134512640 135987407 3221224560 3221158576 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10029/statm): 167804 139129 364 364 0 167440 0
[pid=10029] vsize: 671216
Current children cumulated CPU time (s) 69.76
Current children cumulated vsize (Kb) 671216

[startup+80.0069 s]
Raw data (loadavg): 0.96 0.97 0.93 2/55 10029
Raw data (/proc/10029/stat): 10029 (pb2sat) R 10028 10029 4060 0 -1 0 247613 0 0 0 7480 494 0 0 25 0 1 0 22212517 744939520 155488 4294967295 134512640 135987407 3221224560 3221158864 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10029/statm): 181870 155488 364 364 0 181506 0
[pid=10029] vsize: 727480
Current children cumulated CPU time (s) 79.74
Current children cumulated vsize (Kb) 727480

[startup+90.0077 s]
Raw data (loadavg): 0.96 0.97 0.93 2/55 10029
Raw data (/proc/10029/stat): 10029 (pb2sat) R 10028 10029 4060 0 -1 0 264374 0 0 0 8446 525 0 0 25 0 1 0 22212517 774864896 170720 4294967295 134512640 135987407 3221224560 3221222932 134562648 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10029/statm): 189176 170720 364 364 0 188812 0
[pid=10029] vsize: 756704
Current children cumulated CPU time (s) 89.71
Current children cumulated vsize (Kb) 756704
One traced child (pid=10029) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 95.5027
CPU time (s): 95.2175
CPU user time (s): 89.6084
CPU system time (s): 5.60915
CPU usage (%): 99.7014
Max. virtual memory (cumulated for all children) (Kb): 756704

Verifier Data

ERROR: no interpretation found !