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-neos6.opb
MD5SUM0633214154e8bab02f648560b9bfa54f
Bench Categoryoptimization, medium integers (OPTMEDINT)
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 4460
Biggest coefficient in the objective function 524288
Number of bits for the biggest coefficient in the objective function 20
Sum of the numbers in the objective function 233832225
Number of bits of the sum of numbers in the objective function 28
Biggest number in a constraint 524288
Number of bits of the biggest number in a constraint 20
Biggest sum of numbers in a constraint 233832225
Number of bits of the biggest sum of numbers28
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables17260
Total number of constraints9376
Number of constraints which are clauses48
Number of constraints which are cardinality constraints (but not clauses)9095
Number of constraints which are nor clauses,nor cardinality constraints233
Minimum length of a constraint1
Maximum length of a constraint834

Trace number 10572

Launcher Data

LAUNCH ON wulflinc31 THE 2005-09-23 19:09:44 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9333 boxname=wulflinc31 idbench=1129 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0633214154e8bab02f648560b9bfa54f  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-neos6.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-neos6.opb
IDLAUNCH: 9333
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.047
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		: 451.047
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:        901968 kB
Buffers:         19948 kB
Cached:          93408 kB
SwapCached:          0 kB
Active:          47192 kB
Inactive:        69120 kB
HighTotal:      131008 kB
HighFree:        36596 kB
LowTotal:       903652 kB
LowFree:        865372 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6988 kB
Slab:            10712 kB
Committed_AS:    63664 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 19:11:28 (client local time) WITH STATUS 0 IN 101.688 SECONDS
stats: 9333 7 101.688 0

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
s UNKNOWN

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/10890/stat): 10890 (pb2sat) R 10889 10890 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22555396 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10890/statm): 373 2 364 364 0 9 0
[pid=10890] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-neos6.opb

[startup+10.0022 s]
Raw data (loadavg): 0.87 0.94 0.90 2/55 10890
Raw data (/proc/10890/stat): 10890 (pb2sat) R 10889 10890 4005 0 -1 0 25067 0 0 0 938 58 0 0 25 0 1 0 22555396 82268160 13963 4294967295 134512640 135987407 3221224560 3221209440 134864282 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10890/statm): 20085 13963 364 364 0 19721 0
[pid=10890] vsize: 80340
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 80340

[startup+20.0041 s]
Raw data (loadavg): 0.89 0.94 0.90 2/55 10890
Raw data (/proc/10890/stat): 10890 (pb2sat) R 10889 10890 4005 0 -1 0 51329 0 0 0 1880 115 0 0 25 0 1 0 22555396 159305728 29008 4294967295 134512640 135987407 3221224560 3221104752 134802877 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10890/statm): 38893 29008 364 364 0 38529 0
[pid=10890] vsize: 155572
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 155572

[startup+30.005 s]
Raw data (loadavg): 0.91 0.94 0.91 2/55 10890
Raw data (/proc/10890/stat): 10890 (pb2sat) R 10889 10890 4005 0 -1 0 89982 0 0 0 2790 201 0 0 25 0 1 0 22555396 276312064 45465 4294967295 134512640 135987407 3221224560 3221221952 134615232 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10890/statm): 67459 45465 364 364 0 67095 0
[pid=10890] vsize: 269836
Current children cumulated CPU time (s) 29.91
Current children cumulated vsize (Kb) 269836

[startup+40.007 s]
Raw data (loadavg): 0.92 0.95 0.91 2/55 10890
Raw data (/proc/10890/stat): 10890 (pb2sat) R 10889 10890 4005 0 -1 0 104545 0 0 0 3752 239 0 0 25 0 1 0 22555396 315949056 59798 4294967295 134512640 135987407 3221224560 3221210416 134556288 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10890/statm): 77136 59798 364 364 0 76772 0
[pid=10890] vsize: 308544
Current children cumulated CPU time (s) 39.91
Current children cumulated vsize (Kb) 308544

[startup+50.0079 s]
Raw data (loadavg): 0.93 0.95 0.91 2/55 10890
Raw data (/proc/10890/stat): 10890 (pb2sat) R 10889 10890 4005 0 -1 0 125377 0 0 0 4705 284 0 0 25 0 1 0 22555396 475185152 80210 4294967295 134512640 135987407 3221224560 3221211808 134856455 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10890/statm): 116012 80210 364 364 0 115648 0
[pid=10890] vsize: 464048
Current children cumulated CPU time (s) 49.89
Current children cumulated vsize (Kb) 464048

[startup+60.0078 s]
Raw data (loadavg): 0.94 0.95 0.91 2/55 10890
Raw data (/proc/10890/stat): 10890 (pb2sat) R 10889 10890 4005 0 -1 0 184593 0 0 0 5576 410 0 0 25 0 1 0 22555396 553476096 95443 4294967295 134512640 135987407 3221224560 3221210624 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10890/statm): 135126 95443 364 364 0 134762 0
[pid=10890] vsize: 540504
Current children cumulated CPU time (s) 59.86
Current children cumulated vsize (Kb) 540504

[startup+70.0088 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 10890
Raw data (/proc/10890/stat): 10890 (pb2sat) R 10889 10890 4005 0 -1 0 197354 0 0 0 6547 438 0 0 25 0 1 0 22555396 591761408 107999 4294967295 134512640 135987407 3221224560 3221180556 134876432 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10890/statm): 144473 107999 364 364 0 144109 0
[pid=10890] vsize: 577892
Current children cumulated CPU time (s) 69.85
Current children cumulated vsize (Kb) 577892

[startup+80.0097 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 10890
Raw data (/proc/10890/stat): 10890 (pb2sat) R 10889 10890 4005 0 -1 0 212343 0 0 0 7514 470 0 0 25 0 1 0 22555396 598249472 122752 4294967295 134512640 135987407 3221224560 3221083696 134855001 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10890/statm): 146057 122752 364 364 0 145693 0
[pid=10890] vsize: 584228
Current children cumulated CPU time (s) 79.84
Current children cumulated vsize (Kb) 584228

[startup+90.0106 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 10890
Raw data (/proc/10890/stat): 10890 (pb2sat) R 10889 10890 4005 0 -1 0 225596 0 0 0 8484 500 0 0 25 0 1 0 22555396 653852672 135795 4294967295 134512640 135987407 3221224560 3221067952 134877726 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10890/statm): 159632 135795 364 364 0 159268 0
[pid=10890] vsize: 638528
Current children cumulated CPU time (s) 89.84
Current children cumulated vsize (Kb) 638528

[startup+100.012 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 10890
Raw data (/proc/10890/stat): 10890 (pb2sat) R 10889 10890 4005 0 -1 0 238260 0 0 0 9457 527 0 0 25 0 1 0 22555396 657367040 148251 4294967295 134512640 135987407 3221224560 3221130572 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10890/statm): 160490 148251 364 364 0 160126 0
[pid=10890] vsize: 641960
Current children cumulated CPU time (s) 99.84
Current children cumulated vsize (Kb) 641960



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+101.527 s]
Raw data (loadavg): 0.97 0.95 0.91 1/55 10890
Raw data (/proc/10890/stat): 10890 (pb2sat) T 10889 10890 4005 0 -1 0 240658 0 0 0 9604 531 0 0 25 0 1 0 22555396 944340992 150615 4294967295 134512640 135987407 3221224560 3221195152 135544035 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/10890/statm): 230552 150615 364 364 0 230188 0
[pid=10890] vsize: 922208
Current children cumulated CPU time (s) 101.35
Current children cumulated vsize (Kb) 922208

Sending SIGTERM to -10890
Sleeping 2 seconds
Sending SIGKILL to -10890
One traced child (pid=10890) ended because it received signal 9 (SIGKILL)
All traced children have exited ! Game is over.

Child ended because it received signal 9 (SIGKILL)
Real time (s): 103.841
CPU time (s): 101.688
CPU user time (s): 96.0604
CPU system time (s): 5.62714
CPU usage (%): 97.9266
Max. virtual memory (cumulated for all children) (Kb): 922208

Verifier Data

ERROR: no interpretation found !