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/MIPLIB/miplib2003/normalized-mps-v2-20-10-qiu.opb
MD5SUM9029e59d305ed70ef352ded3c086e2a0
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 7968
Biggest coefficient in the objective function 9098351345664
Number of bits for the biggest coefficient in the objective function 44
Sum of the numbers in the objective function 4803935111035752
Number of bits of the sum of numbers in the objective function 53
Biggest number in a constraint 9098351345664
Number of bits of the biggest number in a constraint 44
Biggest sum of numbers in a constraint 4803935111035752
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables23808
Total number of constraints1240
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)48
Number of constraints which are nor clauses,nor cardinality constraints1192
Minimum length of a constraint1
Maximum length of a constraint5940

Trace number 10041

Launcher Data

LAUNCH ON wulflinc1 THE 2005-09-23 16:39:33 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8798 boxname=wulflinc1 idbench=594 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9029e59d305ed70ef352ded3c086e2a0  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-qiu.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-qiu.opb
IDLAUNCH: 8798
/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:        883364 kB
Buffers:         13076 kB
Cached:         120340 kB
SwapCached:          0 kB
Active:          78424 kB
Inactive:        57908 kB
HighTotal:      131008 kB
HighFree:        14280 kB
LowTotal:       903652 kB
LowFree:        869084 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6988 kB
Slab:             9328 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:41:21 (client local time) WITH STATUS 1 IN 107.367 SECONDS
stats: 8798 7 107.367 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/9743/stat): 9743 (pb2sat) R 9742 9743 4704 0 -1 0 18 0 0 0 0 0 0 0 22 0 1 0 21715283 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9743/statm): 373 2 364 364 0 9 0
[pid=9743] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-qiu.opb

[startup+10.0027 s]
Raw data (loadavg): 0.91 0.94 0.94 2/55 9743
Raw data (/proc/9743/stat): 9743 (pb2sat) R 9742 9743 4704 0 -1 0 25266 0 0 0 938 59 0 0 25 0 1 0 21715283 78585856 14162 4294967295 134512640 135987407 3221224560 3219325152 134865874 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9743/statm): 19186 14162 364 364 0 18822 0
[pid=9743] vsize: 76744
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 76744

[startup+20.0035 s]
Raw data (loadavg): 0.93 0.94 0.94 2/55 9743
Raw data (/proc/9743/stat): 9743 (pb2sat) R 9742 9743 4704 0 -1 0 56313 0 0 0 1869 124 0 0 25 0 1 0 21715283 182259712 33995 4294967295 134512640 135987407 3221224560 3219537252 135478549 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9743/statm): 44497 33995 364 364 0 44133 0
[pid=9743] vsize: 177988
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 177988

[startup+30.0043 s]
Raw data (loadavg): 0.94 0.94 0.94 2/55 9743
Raw data (/proc/9743/stat): 9743 (pb2sat) R 9742 9743 4704 0 -1 0 99893 0 0 0 2775 215 0 0 25 0 1 0 21715283 315621376 55372 4294967295 134512640 135987407 3221224560 3219933820 134637005 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9743/statm): 77056 55372 364 364 0 76692 0
[pid=9743] vsize: 308224
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 308224

[startup+40.0051 s]
Raw data (loadavg): 0.95 0.94 0.94 2/55 9743
Raw data (/proc/9743/stat): 9743 (pb2sat) R 9742 9743 4704 0 -1 0 118737 0 0 0 3733 255 0 0 25 0 1 0 21715283 373506048 73989 4294967295 134512640 135987407 3221224560 3220075984 134559192 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9743/statm): 91188 73989 364 364 0 90824 0
[pid=9743] vsize: 364752
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 364752

[startup+50.0059 s]
Raw data (loadavg): 0.95 0.94 0.94 2/55 9743
Raw data (/proc/9743/stat): 9743 (pb2sat) R 9742 9743 4704 0 -1 0 140545 0 0 0 4688 298 0 0 25 0 1 0 21715283 545718272 95499 4294967295 134512640 135987407 3221224560 3220274992 134854872 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9743/statm): 133232 95499 364 364 0 132868 0
[pid=9743] vsize: 532928
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 532928

[startup+60.0067 s]
Raw data (loadavg): 0.96 0.94 0.94 2/55 9743
Raw data (/proc/9743/stat): 9743 (pb2sat) R 9742 9743 4704 0 -1 0 205361 0 0 0 5545 437 0 0 25 0 1 0 21715283 639418368 116216 4294967295 134512640 135987407 3221224560 3220416640 134537371 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9743/statm): 156108 116216 364 364 0 155744 0
[pid=9743] vsize: 624432
Current children cumulated CPU time (s) 59.82
Current children cumulated vsize (Kb) 624432

[startup+70.0075 s]
Raw data (loadavg): 0.97 0.95 0.94 2/55 9743
Raw data (/proc/9743/stat): 9743 (pb2sat) R 9742 9743 4704 0 -1 0 222518 0 0 0 6504 476 0 0 25 0 1 0 21715283 695140352 133167 4294967295 134512640 135987407 3221224560 3220865156 134641978 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9743/statm): 169712 133167 364 364 0 169348 0
[pid=9743] vsize: 678848
Current children cumulated CPU time (s) 69.8
Current children cumulated vsize (Kb) 678848

[startup+80.0083 s]
Raw data (loadavg): 0.97 0.95 0.94 2/55 9743
Raw data (/proc/9743/stat): 9743 (pb2sat) R 9742 9743 4704 0 -1 0 242091 0 0 0 7459 520 0 0 25 0 1 0 21715283 720416768 152504 4294967295 134512640 135987407 3221224560 3220982368 134878384 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9743/statm): 175883 152504 364 364 0 175519 0
[pid=9743] vsize: 703532
Current children cumulated CPU time (s) 79.79
Current children cumulated vsize (Kb) 703532

[startup+90.0091 s]
Raw data (loadavg): 0.98 0.95 0.94 2/55 9743
Raw data (/proc/9743/stat): 9743 (pb2sat) R 9742 9743 4704 0 -1 0 255973 0 0 0 8427 550 0 0 25 0 1 0 21715283 733798400 166198 4294967295 134512640 135987407 3221224560 3219373696 134537357 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9743/statm): 179150 166198 364 364 0 178786 0
[pid=9743] vsize: 716600
Current children cumulated CPU time (s) 89.77
Current children cumulated vsize (Kb) 716600

[startup+100.009 s]
Raw data (loadavg): 0.98 0.95 0.94 2/55 9743
Raw data (/proc/9743/stat): 9743 (pb2sat) R 9742 9743 4704 0 -1 0 266829 0 0 0 9405 573 0 0 25 0 1 0 21715283 784130048 176863 4294967295 134512640 135987407 3221224560 3219539192 135488042 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9743/statm): 191438 176863 364 364 0 191074 0
[pid=9743] vsize: 765752
Current children cumulated CPU time (s) 99.78
Current children cumulated vsize (Kb) 765752
One traced child (pid=9743) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 107.596
CPU time (s): 107.367
CPU user time (s): 101.166
CPU system time (s): 6.20106
CPU usage (%): 99.7866
Max. virtual memory (cumulated for all children) (Kb): 765752

Verifier Data

ERROR: no interpretation found !