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/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-swath3.opb
MD5SUMbc671f4c524beaee23c3249abe841ea7
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 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 1048576000000
Number of bits of the biggest number in a constraint 40
Biggest sum of numbers in a constraint 197065212145430
Number of bits of the biggest sum of numbers48
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables36471
Total number of constraints7608
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)2915
Number of constraints which are nor clauses,nor cardinality constraints4693
Minimum length of a constraint1
Maximum length of a constraint34870

Trace number 10574

Launcher Data

LAUNCH ON wulflinc23 THE 2005-09-23 19:09:44 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9334 boxname=wulflinc23 idbench=1130 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  bc671f4c524beaee23c3249abe841ea7  /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-13-7-swath3.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-13-7-swath3.opb
IDLAUNCH: 9334
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.185
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	: 3
cpu MHz		: 451.185
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:        879024 kB
Buffers:         15600 kB
Cached:         121080 kB
SwapCached:          0 kB
Active:          65072 kB
Inactive:        74504 kB
HighTotal:      131008 kB
HighFree:        19572 kB
LowTotal:       903652 kB
LowFree:        859452 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10464 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 19:11:54 (client local time) WITH STATUS 1 IN 128.855 SECONDS
stats: 9334 7 128.855 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/11156/stat): 11156 (pb2sat) R 11155 11156 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22592913 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/11156/statm): 373 2 364 364 0 9 0
[pid=11156] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-13-7-swath3.opb

[startup+10.002 s]
Raw data (loadavg): 0.87 0.99 0.98 2/55 11156
Raw data (/proc/11156/stat): 11156 (pb2sat) R 11155 11156 4060 0 -1 0 8153 0 0 0 977 20 0 0 25 0 1 0 22592913 27467776 4873 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11156/statm): 6706 4873 364 364 0 6342 0
[pid=11156] vsize: 26824
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 26824

[startup+20.0027 s]
Raw data (loadavg): 0.89 0.99 0.98 2/55 11156
Raw data (/proc/11156/stat): 11156 (pb2sat) R 11155 11156 4060 0 -1 0 8194 0 0 0 1976 20 0 0 25 0 1 0 22592913 27467776 4914 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11156/statm): 6706 4914 364 364 0 6342 0
[pid=11156] vsize: 26824
Current children cumulated CPU time (s) 19.96
Current children cumulated vsize (Kb) 26824

[startup+30.0033 s]
Raw data (loadavg): 0.91 0.99 0.98 2/55 11156
Raw data (/proc/11156/stat): 11156 (pb2sat) R 11155 11156 4060 0 -1 0 24416 0 0 0 2938 57 0 0 25 0 1 0 22592913 82444288 16176 4294967295 134512640 135987407 3221224560 3210703172 135477853 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11156/statm): 20128 16176 364 364 0 19764 0
[pid=11156] vsize: 80512
Current children cumulated CPU time (s) 29.95
Current children cumulated vsize (Kb) 80512

[startup+40.0039 s]
Raw data (loadavg): 0.92 0.99 0.98 2/55 11156
Raw data (/proc/11156/stat): 11156 (pb2sat) R 11155 11156 4060 0 -1 0 58109 0 0 0 3861 131 0 0 25 0 1 0 22592913 185032704 35564 4294967295 134512640 135987407 3221224560 3212147236 135478543 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11156/statm): 45174 35564 364 364 0 44810 0
[pid=11156] vsize: 180696
Current children cumulated CPU time (s) 39.92
Current children cumulated vsize (Kb) 180696

[startup+50.0046 s]
Raw data (loadavg): 0.93 0.99 0.98 2/55 11156
Raw data (/proc/11156/stat): 11156 (pb2sat) R 11155 11156 4060 0 -1 0 88086 0 0 0 4794 194 0 0 25 0 1 0 22592913 284164096 55610 4294967295 134512640 135987407 3221224560 3210215500 135480493 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11156/statm): 69376 55610 364 364 0 69012 0
[pid=11156] vsize: 277504
Current children cumulated CPU time (s) 49.88
Current children cumulated vsize (Kb) 277504

[startup+60.0042 s]
Raw data (loadavg): 0.94 0.99 0.98 2/55 11156
Raw data (/proc/11156/stat): 11156 (pb2sat) R 11155 11156 4060 0 -1 0 117451 0 0 0 5726 260 0 0 25 0 1 0 22592913 359501824 72453 4294967295 134512640 135987407 3221224560 3211160444 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11156/statm): 87769 72453 364 364 0 87405 0
[pid=11156] vsize: 351076
Current children cumulated CPU time (s) 59.86
Current children cumulated vsize (Kb) 351076

[startup+70.0049 s]
Raw data (loadavg): 0.95 0.99 0.98 1/55 11156
Raw data (/proc/11156/stat): 11156 (pb2sat) T 11155 11156 4060 0 -1 0 140371 0 0 0 6670 311 0 0 25 0 1 0 22592913 574324736 94965 4294967295 134512640 135987407 3221224560 3209947772 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/11156/statm): 140216 94965 364 364 0 139852 0
[pid=11156] vsize: 560864
Current children cumulated CPU time (s) 69.81
Current children cumulated vsize (Kb) 560864

[startup+80.0055 s]
Raw data (loadavg): 0.96 0.99 0.98 2/55 11156
Raw data (/proc/11156/stat): 11156 (pb2sat) R 11155 11156 4060 0 -1 0 176191 0 0 0 7588 390 0 0 25 0 1 0 22592913 556142592 111353 4294967295 134512640 135987407 3221224560 3209939640 135488130 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11156/statm): 135777 111353 364 364 0 135413 0
[pid=11156] vsize: 543108
Current children cumulated CPU time (s) 79.78
Current children cumulated vsize (Kb) 543108

[startup+90.0062 s]
Raw data (loadavg): 0.96 0.99 0.98 2/55 11156
Raw data (/proc/11156/stat): 11156 (pb2sat) R 11155 11156 4060 0 -1 0 215562 0 0 0 8501 475 0 0 25 0 1 0 22592913 780046336 150514 4294967295 134512640 135987407 3221224560 3210901136 134887487 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11156/statm): 190441 150514 364 364 0 190077 0
[pid=11156] vsize: 761764
Current children cumulated CPU time (s) 89.76
Current children cumulated vsize (Kb) 761764

[startup+100.007 s]
Raw data (loadavg): 0.97 0.99 0.98 2/55 11156
Raw data (/proc/11156/stat): 11156 (pb2sat) R 11155 11156 4060 0 -1 0 233874 0 0 0 9453 521 0 0 25 0 1 0 22592913 705196032 144009 4294967295 134512640 135987407 3221224560 3211913408 135480413 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11156/statm): 172167 144009 364 364 0 171803 0
[pid=11156] vsize: 688668
Current children cumulated CPU time (s) 99.74
Current children cumulated vsize (Kb) 688668

[startup+110.007 s]
Raw data (loadavg): 0.97 0.99 0.98 2/55 11156
Raw data (/proc/11156/stat): 11156 (pb2sat) R 11155 11156 4060 0 -1 0 248430 0 0 0 10419 553 0 0 25 0 1 0 22592913 760242176 158366 4294967295 134512640 135987407 3221224560 3212048192 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11156/statm): 185606 158366 364 364 0 185242 0
[pid=11156] vsize: 742424
Current children cumulated CPU time (s) 109.72
Current children cumulated vsize (Kb) 742424

[startup+120.008 s]
Raw data (loadavg): 0.98 0.99 0.98 2/55 11156
Raw data (/proc/11156/stat): 11156 (pb2sat) R 11155 11156 4060 0 -1 0 265784 0 0 0 11377 592 0 0 25 0 1 0 22592913 792514560 175514 4294967295 134512640 135987407 3221224560 3215800468 135328363 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11156/statm): 193485 175514 364 364 0 193121 0
[pid=11156] vsize: 773940
Current children cumulated CPU time (s) 119.69
Current children cumulated vsize (Kb) 773940
One traced child (pid=11156) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 129.162
CPU time (s): 128.855
CPU user time (s): 122.571
CPU system time (s): 6.28404
CPU usage (%): 99.7624
Max. virtual memory (cumulated for all children) (Kb): 773940

Verifier Data

ERROR: no interpretation found !