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-mkc1.opb
MD5SUMd176539199497efb0c829821dd5c09ea
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 18598
Biggest coefficient in the objective function 2560000
Number of bits for the biggest coefficient in the objective function 22
Sum of the numbers in the objective function 7036117195
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint 524288000
Number of bits of the biggest number in a constraint 29
Biggest sum of numbers in a constraint 8002856320
Number of bits of the biggest sum of numbers33
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1234.59
Number of variables21015
Total number of constraints8734
Number of constraints which are clauses712
Number of constraints which are cardinality constraints (but not clauses)3174
Number of constraints which are nor clauses,nor cardinality constraints4848
Minimum length of a constraint1
Maximum length of a constraint18426

Trace number 10545

Launcher Data

LAUNCH ON wulflinc19 THE 2005-09-23 18:57:09 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9305 boxname=wulflinc19 idbench=1101 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  d176539199497efb0c829821dd5c09ea  /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-13-7-mkc1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-13-7-mkc1.opb
IDLAUNCH: 9305
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
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		: 451.169
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:        898864 kB
Buffers:         16364 kB
Cached:          99508 kB
SwapCached:          0 kB
Active:          48188 kB
Inactive:        70560 kB
HighTotal:      131008 kB
HighFree:        35420 kB
LowTotal:       903652 kB
LowFree:        863444 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11404 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 18:59:02 (client local time) WITH STATUS 1 IN 111.937 SECONDS
stats: 9305 7 111.937 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/10151/stat): 10151 (pb2sat) R 10150 10151 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22520843 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/10151/statm): 373 10 364 364 0 9 0
[pid=10151] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-13-7-mkc1.opb

[startup+10.0028 s]
Raw data (loadavg): 0.93 0.95 0.90 2/55 10151
Raw data (/proc/10151/stat): 10151 (pb2sat) R 10150 10151 4060 0 -1 0 4817 0 0 0 985 12 0 0 25 0 1 0 22520843 16584704 3124 4294967295 134512640 135987407 3221224560 3221221872 134555870 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10151/statm): 4049 3124 364 364 0 3685 0
[pid=10151] vsize: 16196
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 16196

[startup+20.0037 s]
Raw data (loadavg): 0.94 0.96 0.91 2/55 10151
Raw data (/proc/10151/stat): 10151 (pb2sat) R 10150 10151 4060 0 -1 0 31197 0 0 0 1920 75 0 0 25 0 1 0 22520843 97726464 19845 4294967295 134512640 135987407 3221224560 3215031904 134559750 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10151/statm): 23859 19845 364 364 0 23495 0
[pid=10151] vsize: 95436
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 95436

[startup+30.0045 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 10151
Raw data (/proc/10151/stat): 10151 (pb2sat) R 10150 10151 4060 0 -1 0 62026 0 0 0 2847 146 0 0 25 0 1 0 22520843 203427840 39438 4294967295 134512640 135987407 3221224560 3215058724 135486835 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10151/statm): 49665 39438 364 364 0 49301 0
[pid=10151] vsize: 198660
Current children cumulated CPU time (s) 29.93
Current children cumulated vsize (Kb) 198660

[startup+40.0053 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 10151
Raw data (/proc/10151/stat): 10151 (pb2sat) R 10150 10151 4060 0 -1 0 94461 0 0 0 3778 210 0 0 25 0 1 0 22520843 289435648 61919 4294967295 134512640 135987407 3221224560 3215071868 134639878 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10151/statm): 70663 61919 364 364 0 70299 0
[pid=10151] vsize: 282652
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 282652

[startup+50.0061 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 10151
Raw data (/proc/10151/stat): 10151 (pb2sat) R 10150 10151 4060 0 -1 0 124043 0 0 0 4710 276 0 0 25 0 1 0 22520843 399138816 78990 4294967295 134512640 135987407 3221224560 3215035952 134887827 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10151/statm): 97446 78990 364 364 0 97082 0
[pid=10151] vsize: 389784
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 389784

[startup+60.0069 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 10151
Raw data (/proc/10151/stat): 10151 (pb2sat) R 10150 10151 4060 0 -1 0 167819 0 0 0 5620 362 0 0 25 0 1 0 22520843 539811840 103138 4294967295 134512640 135987407 3221224560 3215046560 134878514 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10151/statm): 131790 103138 364 364 0 131426 0
[pid=10151] vsize: 527160
Current children cumulated CPU time (s) 59.82
Current children cumulated vsize (Kb) 527160

[startup+70.0077 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 10151
Raw data (/proc/10151/stat): 10151 (pb2sat) R 10150 10151 4060 0 -1 0 190707 0 0 0 6569 411 0 0 25 0 1 0 22520843 768851968 125777 4294967295 134512640 135987407 3221224560 3215097440 134887487 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10151/statm): 187708 125781 364 364 0 187344 0
[pid=10151] vsize: 750832
Current children cumulated CPU time (s) 69.8
Current children cumulated vsize (Kb) 750832

[startup+80.0085 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 10151
Raw data (/proc/10151/stat): 10151 (pb2sat) R 10150 10151 4060 0 -1 0 229143 0 0 0 7480 497 0 0 25 0 1 0 22520843 693731328 139417 4294967295 134512640 135987407 3221224560 3215619536 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10151/statm): 169368 139417 364 364 0 169004 0
[pid=10151] vsize: 677472
Current children cumulated CPU time (s) 79.77
Current children cumulated vsize (Kb) 677472

[startup+90.0083 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 10151
Raw data (/proc/10151/stat): 10151 (pb2sat) R 10150 10151 4060 0 -1 0 245771 0 0 0 8439 536 0 0 25 0 1 0 22520843 752021504 155832 4294967295 134512640 135987407 3221224560 3215175824 134635342 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10151/statm): 183599 155832 364 364 0 183235 0
[pid=10151] vsize: 734396
Current children cumulated CPU time (s) 89.75
Current children cumulated vsize (Kb) 734396

[startup+100.008 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 10151
Raw data (/proc/10151/stat): 10151 (pb2sat) R 10150 10151 4060 0 -1 0 265723 0 0 0 9397 576 0 0 25 0 1 0 22520843 782442496 175539 4294967295 134512640 135987407 3221224560 3215138384 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10151/statm): 191026 175539 364 364 0 190662 0
[pid=10151] vsize: 764104
Current children cumulated CPU time (s) 99.73
Current children cumulated vsize (Kb) 764104

[startup+110.009 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 10151
Raw data (/proc/10151/stat): 10151 (pb2sat) R 10150 10151 4060 0 -1 0 271754 0 0 0 10373 599 0 0 25 0 1 0 22520843 482603008 117306 4294967295 134512640 135987407 3221224560 3221223224 135477320 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10151/statm): 117823 117306 364 364 0 117459 0
[pid=10151] vsize: 471292
Current children cumulated CPU time (s) 109.72
Current children cumulated vsize (Kb) 471292
One traced child (pid=10151) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 112.215
CPU time (s): 111.937
CPU user time (s): 105.695
CPU system time (s): 6.24205
CPU usage (%): 99.7525
Max. virtual memory (cumulated for all children) (Kb): 764104

Verifier Data

ERROR: no interpretation found !