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-wood1p.opb
MD5SUMa2815b77f36d91ef7299d509f20c9b2a
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 30
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 1073741823
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 53687091200000000
Number of bits of the biggest number in a constraint 56
Biggest sum of numbers in a constraint 66413144120266883072
Number of bits of the biggest sum of numbers66
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables77820
Total number of constraints244
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 constraints244
Minimum length of a constraint30
Maximum length of a constraint77760

Trace number 9938

Launcher Data

LAUNCH ON wulflinc3 THE 2005-09-23 16:14:07 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8688 boxname=wulflinc3 idbench=484 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a2815b77f36d91ef7299d509f20c9b2a  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-wood1p.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-wood1p.opb
IDLAUNCH: 8688
/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:        881672 kB
Buffers:         12880 kB
Cached:         122372 kB
SwapCached:          0 kB
Active:          92412 kB
Inactive:        45776 kB
HighTotal:      131008 kB
HighFree:         4284 kB
LowTotal:       903652 kB
LowFree:        877388 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9140 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:15:59 (client local time) WITH STATUS 1 IN 110.571 SECONDS
stats: 8688 7 110.571 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/9011/stat): 9011 (pb2sat) R 9010 9011 4060 0 -1 0 18 0 0 0 0 0 0 0 22 0 1 0 21560365 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9011/statm): 373 2 364 364 0 9 0
[pid=9011] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-wood1p.opb

[startup+10.0021 s]
Raw data (loadavg): 0.90 0.92 0.90 2/55 9011
Raw data (/proc/9011/stat): 9011 (pb2sat) R 9010 9011 4060 0 -1 0 28970 0 0 0 940 56 0 0 25 0 1 0 21560365 99102720 17831 4294967295 134512640 135987407 3221224560 3217580576 134877726 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9011/statm): 24195 17831 364 364 0 23831 0
[pid=9011] vsize: 96780
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 96780

[startup+20.0029 s]
Raw data (loadavg): 0.92 0.93 0.90 2/55 9011
Raw data (/proc/9011/stat): 9011 (pb2sat) R 9010 9011 4060 0 -1 0 60037 0 0 0 1874 119 0 0 25 0 1 0 21560365 195063808 37679 4294967295 134512640 135987407 3221224560 3217605456 134876615 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9011/statm): 47623 37679 364 364 0 47259 0
[pid=9011] vsize: 190492
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 190492

[startup+30.0038 s]
Raw data (loadavg): 0.93 0.93 0.90 2/55 9011
Raw data (/proc/9011/stat): 9011 (pb2sat) R 9010 9011 4060 0 -1 0 103191 0 0 0 2780 209 0 0 25 0 1 0 21560365 328695808 58629 4294967295 134512640 135987407 3221224560 3217585508 134558630 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9011/statm): 80248 58629 364 364 0 79884 0
[pid=9011] vsize: 320992
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 320992

[startup+40.0046 s]
Raw data (loadavg): 0.94 0.93 0.91 2/55 9011
Raw data (/proc/9011/stat): 9011 (pb2sat) R 9010 9011 4060 0 -1 0 121642 0 0 0 3741 247 0 0 25 0 1 0 21560365 387661824 76861 4294967295 134512640 135987407 3221224560 3217627468 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9011/statm): 94644 76861 364 364 0 94280 0
[pid=9011] vsize: 378576
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 378576

[startup+50.0054 s]
Raw data (loadavg): 0.95 0.93 0.91 2/55 9011
Raw data (/proc/9011/stat): 9011 (pb2sat) R 9010 9011 4060 0 -1 0 143860 0 0 0 4694 292 0 0 25 0 1 0 21560365 561360896 98748 4294967295 134512640 135987407 3221224560 3217610452 134892396 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9011/statm): 137051 98748 364 364 0 136687 0
[pid=9011] vsize: 548204
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 548204

[startup+60.0053 s]
Raw data (loadavg): 0.96 0.93 0.91 2/55 9011
Raw data (/proc/9011/stat): 9011 (pb2sat) R 9010 9011 4060 0 -1 0 207125 0 0 0 5554 426 0 0 25 0 1 0 21560365 652779520 117949 4294967295 134512640 135987407 3221224560 3217670320 134866025 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9011/statm): 159370 117949 364 364 0 159006 0
[pid=9011] vsize: 637480
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 637480

[startup+70.0051 s]
Raw data (loadavg): 0.96 0.93 0.91 2/55 9011
Raw data (/proc/9011/stat): 9011 (pb2sat) R 9010 9011 4060 0 -1 0 223845 0 0 0 6511 469 0 0 25 0 1 0 21560365 709447680 134463 4294967295 134512640 135987407 3221224560 3217670384 134878604 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9011/statm): 173205 134463 364 364 0 172841 0
[pid=9011] vsize: 692820
Current children cumulated CPU time (s) 69.8
Current children cumulated vsize (Kb) 692820

[startup+80.006 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 9011
Raw data (/proc/9011/stat): 9011 (pb2sat) R 9010 9011 4060 0 -1 0 243239 0 0 0 7473 505 0 0 25 0 1 0 21560365 736899072 153631 4294967295 134512640 135987407 3221224560 3217590316 135499903 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9011/statm): 179907 153631 364 364 0 179543 0
[pid=9011] vsize: 719628
Current children cumulated CPU time (s) 79.78
Current children cumulated vsize (Kb) 719628

[startup+90.0058 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 9011
Raw data (/proc/9011/stat): 9011 (pb2sat) R 9010 9011 4060 0 -1 0 262713 0 0 0 8431 544 0 0 25 0 1 0 21560365 763805696 172869 4294967295 134512640 135987407 3221224560 3217681196 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9011/statm): 186476 172869 364 364 0 186112 0
[pid=9011] vsize: 745904
Current children cumulated CPU time (s) 89.75
Current children cumulated vsize (Kb) 745904

[startup+100.007 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 9011
Raw data (/proc/9011/stat): 9011 (pb2sat) R 9010 9011 4060 0 -1 0 277839 0 0 0 9399 575 0 0 25 0 1 0 21560365 834957312 187810 4294967295 134512640 135987407 3221224560 3217655328 135486786 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9011/statm): 203847 187810 364 364 0 203483 0
[pid=9011] vsize: 815388
Current children cumulated CPU time (s) 99.74
Current children cumulated vsize (Kb) 815388

[startup+110.007 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 9011
Raw data (/proc/9011/stat): 9011 (pb2sat) R 9010 9011 4060 0 -1 0 281740 0 0 0 10377 597 0 0 25 0 1 0 21560365 480288768 116795 4294967295 134512640 135987407 3221224560 3221223408 134884004 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9011/statm): 117258 116795 364 364 0 116894 0
[pid=9011] vsize: 469032
Current children cumulated CPU time (s) 109.74
Current children cumulated vsize (Kb) 469032
One traced child (pid=9011) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 110.836
CPU time (s): 110.571
CPU user time (s): 104.348
CPU system time (s): 6.22305
CPU usage (%): 99.7614
Max. virtual memory (cumulated for all children) (Kb): 815388

Verifier Data

ERROR: no interpretation found !