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-harp2.opb
MD5SUM9daf89aad4f1fef005847be296977991
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -61508178
Optimality of the best value was proved NO
Number of terms in the objective function 2993
Biggest coefficient in the objective function 17006200
Number of bits for the biggest coefficient in the objective function 25
Sum of the numbers in the objective function 4415092451
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint 4208540000
Number of bits of the biggest number in a constraint 32
Biggest sum of numbers in a constraint 46909379837
Number of bits of the biggest sum of numbers36
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1195.06
Number of variables2993
Total number of constraints3105
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)3066
Number of constraints which are nor clauses,nor cardinality constraints39
Minimum length of a constraint1
Maximum length of a constraint73

Trace number 10013

Launcher Data

LAUNCH ON wulflinc6 THE 2005-09-23 16:32:31 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8773 boxname=wulflinc6 idbench=569 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9daf89aad4f1fef005847be296977991  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-harp2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-harp2.opb
IDLAUNCH: 8773
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.158
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		: 451.158
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        925476 kB
Buffers:         12848 kB
Cached:          79224 kB
SwapCached:          0 kB
Active:          41788 kB
Inactive:        53176 kB
HighTotal:      131008 kB
HighFree:        48328 kB
LowTotal:       903652 kB
LowFree:        877148 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8772 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:34:21 (client local time) WITH STATUS 1 IN 109.445 SECONDS
stats: 8773 7 109.445 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/8259/stat): 8259 (pb2sat) R 8258 8259 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21669346 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8259/statm): 373 2 364 364 0 9 0
[pid=8259] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-harp2.opb

[startup+10.0027 s]
Raw data (loadavg): 0.93 0.95 0.96 2/55 8259
Raw data (/proc/8259/stat): 8259 (pb2sat) R 8258 8259 4060 0 -1 0 30199 0 0 0 926 69 0 0 25 0 1 0 21669346 98254848 19050 4294967295 134512640 135987407 3221224560 3221197840 134537363 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8259/statm): 23988 19050 364 364 0 23624 0
[pid=8259] vsize: 95952
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 95952

[startup+20.0034 s]
Raw data (loadavg): 0.94 0.96 0.96 2/55 8259
Raw data (/proc/8259/stat): 8259 (pb2sat) R 8258 8259 4060 0 -1 0 60606 0 0 0 1860 132 0 0 25 0 1 0 21669346 195018752 38185 4294967295 134512640 135987407 3221224560 3221199096 134863100 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8259/statm): 47612 38185 364 364 0 47248 0
[pid=8259] vsize: 190448
Current children cumulated CPU time (s) 19.92
Current children cumulated vsize (Kb) 190448

[startup+30.0032 s]
Raw data (loadavg): 0.95 0.96 0.96 2/55 8259
Raw data (/proc/8259/stat): 8259 (pb2sat) R 8258 8259 4060 0 -1 0 91946 0 0 0 2793 196 0 0 25 0 1 0 21669346 279105536 59189 4294967295 134512640 135987407 3221224560 3221199484 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8259/statm): 68141 59189 364 364 0 67777 0
[pid=8259] vsize: 272564
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 272564

[startup+40.0039 s]
Raw data (loadavg): 0.96 0.96 0.96 2/55 8259
Raw data (/proc/8259/stat): 8259 (pb2sat) R 8258 8259 4060 0 -1 0 120254 0 0 0 3737 250 0 0 25 0 1 0 21669346 386977792 75009 4294967295 134512640 135987407 3221224560 3221199108 135478472 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8259/statm): 94477 75009 364 364 0 94113 0
[pid=8259] vsize: 377908
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 377908

[startup+50.0047 s]
Raw data (loadavg): 0.96 0.96 0.96 2/55 8259
Raw data (/proc/8259/stat): 8259 (pb2sat) R 8258 8259 4060 0 -1 0 154453 0 0 0 4669 314 0 0 25 0 1 0 21669346 583675904 108283 4294967295 134512640 135987407 3221224560 3221198332 135500012 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8259/statm): 142499 108283 364 364 0 142135 0
[pid=8259] vsize: 569996
Current children cumulated CPU time (s) 49.83
Current children cumulated vsize (Kb) 569996

[startup+60.0054 s]
Raw data (loadavg): 0.97 0.96 0.96 2/55 8259
Raw data (/proc/8259/stat): 8259 (pb2sat) R 8258 8259 4060 0 -1 0 181693 0 0 0 5615 364 0 0 25 0 1 0 21669346 552374272 115422 4294967295 134512640 135987407 3221224560 3221200156 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8259/statm): 134857 115422 364 364 0 134493 0
[pid=8259] vsize: 539428
Current children cumulated CPU time (s) 59.79
Current children cumulated vsize (Kb) 539428

[startup+70.0062 s]
Raw data (loadavg): 0.97 0.96 0.96 2/55 8259
Raw data (/proc/8259/stat): 8259 (pb2sat) R 8258 8259 4060 0 -1 0 221711 0 0 0 6530 448 0 0 25 0 1 0 21669346 675340288 130670 4294967295 134512640 135987407 3221224560 3221199360 134866122 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8259/statm): 164878 130670 364 364 0 164514 0
[pid=8259] vsize: 659512
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 659512

[startup+80.0069 s]
Raw data (loadavg): 0.98 0.96 0.96 2/55 8259
Raw data (/proc/8259/stat): 8259 (pb2sat) R 8258 8259 4060 0 -1 0 236909 0 0 0 7497 479 0 0 25 0 1 0 21669346 732237824 145686 4294967295 134512640 135987407 3221224560 3221198524 134636953 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8259/statm): 178769 145686 364 364 0 178405 0
[pid=8259] vsize: 715076
Current children cumulated CPU time (s) 79.76
Current children cumulated vsize (Kb) 715076

[startup+90.0077 s]
Raw data (loadavg): 0.98 0.96 0.96 2/55 8259
Raw data (/proc/8259/stat): 8259 (pb2sat) R 8258 8259 4060 0 -1 0 255065 0 0 0 8463 512 0 0 25 0 1 0 21669346 759439360 163517 4294967295 134512640 135987407 3221224560 3221199544 134537425 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8259/statm): 185410 163517 364 364 0 185046 0
[pid=8259] vsize: 741640
Current children cumulated CPU time (s) 89.75
Current children cumulated vsize (Kb) 741640

[startup+100.007 s]
Raw data (loadavg): 0.98 0.96 0.96 2/55 8259
Raw data (/proc/8259/stat): 8259 (pb2sat) R 8258 8259 4060 0 -1 0 272988 0 0 0 9429 544 0 0 25 0 1 0 21669346 786264064 181067 4294967295 134512640 135987407 3221224560 3221201200 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8259/statm): 191959 181067 364 364 0 191595 0
[pid=8259] vsize: 767836
Current children cumulated CPU time (s) 99.73
Current children cumulated vsize (Kb) 767836
One traced child (pid=8259) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 109.732
CPU time (s): 109.445
CPU user time (s): 103.564
CPU system time (s): 5.8811
CPU usage (%): 99.7391
Max. virtual memory (cumulated for all children) (Kb): 767836

Verifier Data

ERROR: no interpretation found !