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/MIPLIB/miplib2003/normalized-mps-v2-13-7-net12.opb
MD5SUM40130e6166f7a0beafce467effb99573
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 214
Optimality of the best value was proved YES
Number of terms in the objective function 39
Biggest coefficient in the objective function 20
Number of bits for the biggest coefficient in the objective function 5
Sum of the numbers in the objective function 337
Number of bits of the sum of numbers in the objective function 9
Biggest number in a constraint 1536
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 17129
Number of bits of the biggest sum of numbers15
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark173.966
Number of variables109859
Total number of constraints28136
Number of constraints which are clauses12
Number of constraints which are cardinality constraints (but not clauses)1994
Number of constraints which are nor clauses,nor cardinality constraints26130
Minimum length of a constraint1
Maximum length of a constraint223

Trace number 10420

Launcher Data

LAUNCH ON wulflinc32 THE 2005-09-23 18:14:59 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9173 boxname=wulflinc32 idbench=969 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  40130e6166f7a0beafce467effb99573  /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-13-7-net12.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-13-7-net12.opb
IDLAUNCH: 9173
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.145
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		: 451.145
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:      1034724 kB
MemFree:        912820 kB
Buffers:         15548 kB
Cached:          86180 kB
SwapCached:          0 kB
Active:          48832 kB
Inactive:        55792 kB
HighTotal:      131072 kB
HighFree:        40480 kB
LowTotal:       903652 kB
LowFree:        872340 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6988 kB
Slab:            11620 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 18:16:33 (client local time) WITH STATUS 0 IN 92.128 SECONDS
stats: 9173 7 92.128 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/9210/stat): 9210 (pb2sat) R 9209 9210 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22227324 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9210/statm): 373 10 364 364 0 9 0
[pid=9210] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-13-7-net12.opb

[startup+10.0018 s]
Raw data (loadavg): 0.94 0.98 0.96 2/55 9210
Raw data (/proc/9210/stat): 9210 (pb2sat) R 9209 9210 4005 0 -1 0 19590 0 0 0 949 48 0 0 25 0 1 0 22227324 60760064 11556 4294967295 134512640 135987407 3221224560 3221221884 134613608 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9210/statm): 14834 11556 364 364 0 14470 0
[pid=9210] vsize: 59336
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 59336

[startup+20.0026 s]
Raw data (loadavg): 0.95 0.98 0.96 2/55 9210
Raw data (/proc/9210/stat): 9210 (pb2sat) R 9209 9210 4005 0 -1 0 41413 0 0 0 1895 100 0 0 25 0 1 0 22227324 122716160 25252 4294967295 134512640 135987407 3221224560 3221170252 134636977 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9210/statm): 29960 25252 364 364 0 29596 0
[pid=9210] vsize: 119840
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 119840

[startup+30.0024 s]
Raw data (loadavg): 0.95 0.98 0.96 2/55 9210
Raw data (/proc/9210/stat): 9210 (pb2sat) R 9209 9210 4005 0 -1 0 75887 0 0 0 2816 176 0 0 25 0 1 0 22227324 229576704 43638 4294967295 134512640 135987407 3221224560 3221191616 135484961 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9210/statm): 56049 43638 364 364 0 55685 0
[pid=9210] vsize: 224196
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 224196

[startup+40.0041 s]
Raw data (loadavg): 0.96 0.98 0.96 2/55 9210
Raw data (/proc/9210/stat): 9210 (pb2sat) R 9209 9210 4005 0 -1 0 103008 0 0 0 3753 239 0 0 25 0 1 0 22227324 317517824 58224 4294967295 134512640 135987407 3221224560 3221198956 135480416 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9210/statm): 77519 58224 364 364 0 77155 0
[pid=9210] vsize: 310076
Current children cumulated CPU time (s) 39.92
Current children cumulated vsize (Kb) 310076

[startup+50.0049 s]
Raw data (loadavg): 0.97 0.98 0.96 2/55 9210
Raw data (/proc/9210/stat): 9210 (pb2sat) R 9209 9210 4005 0 -1 0 145899 0 0 0 4659 330 0 0 25 0 1 0 22227324 514195456 99891 4294967295 134512640 135987407 3221224560 3221192720 134861431 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9210/statm): 125536 99891 364 364 0 125172 0
[pid=9210] vsize: 502144
Current children cumulated CPU time (s) 49.89
Current children cumulated vsize (Kb) 502144

[startup+60.0047 s]
Raw data (loadavg): 0.97 0.98 0.96 2/55 9210
Raw data (/proc/9210/stat): 9210 (pb2sat) R 9209 9210 4005 0 -1 0 185166 0 0 0 5561 427 0 0 25 0 1 0 22227324 551395328 95920 4294967295 134512640 135987407 3221224560 3221181684 134637037 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9210/statm): 134618 95920 364 364 0 134254 0
[pid=9210] vsize: 538472
Current children cumulated CPU time (s) 59.88
Current children cumulated vsize (Kb) 538472

[startup+70.0054 s]
Raw data (loadavg): 0.97 0.98 0.96 2/55 9210
Raw data (/proc/9210/stat): 9210 (pb2sat) R 9209 9210 4005 0 -1 0 200030 0 0 0 6521 467 0 0 25 0 1 0 22227324 589004800 110537 4294967295 134512640 135987407 3221224560 3221190832 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9210/statm): 143800 110537 364 364 0 143436 0
[pid=9210] vsize: 575200
Current children cumulated CPU time (s) 69.88
Current children cumulated vsize (Kb) 575200

[startup+80.0062 s]
Raw data (loadavg): 0.98 0.98 0.96 2/55 9210
Raw data (/proc/9210/stat): 9210 (pb2sat) R 9209 9210 4005 0 -1 0 217294 0 0 0 7478 510 0 0 25 0 1 0 22227324 593735680 127515 4294967295 134512640 135987407 3221224560 3221175468 135480517 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9210/statm): 144955 127515 364 364 0 144591 0
[pid=9210] vsize: 579820
Current children cumulated CPU time (s) 79.88
Current children cumulated vsize (Kb) 579820

[startup+90.007 s]
Raw data (loadavg): 0.98 0.98 0.96 2/55 9210
Raw data (/proc/9210/stat): 9210 (pb2sat) R 9209 9210 4005 0 -1 0 232341 0 0 0 8437 551 0 0 25 0 1 0 22227324 654610432 142340 4294967295 134512640 135987407 3221224560 3221148672 135477274 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9210/statm): 159817 142340 364 364 0 159453 0
[pid=9210] vsize: 639268
Current children cumulated CPU time (s) 89.88
Current children cumulated vsize (Kb) 639268



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+91.796 s]
Raw data (loadavg): 0.98 0.98 0.96 1/55 9210
Raw data (/proc/9210/stat): 9210 (pb2sat) T 9209 9210 4005 0 -1 0 237850 0 0 0 8604 562 0 0 25 0 1 0 22227324 943747072 147685 4294967295 134512640 135987407 3221224560 3221187004 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/9210/statm): 230407 147685 364 364 0 230043 0
[pid=9210] vsize: 921628
Current children cumulated CPU time (s) 91.66
Current children cumulated vsize (Kb) 921628

Sending SIGTERM to -9210
Sleeping 2 seconds
Sending SIGKILL to -9210
One traced child (pid=9210) 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): 94.11
CPU time (s): 92.128
CPU user time (s): 86.1959
CPU system time (s): 5.9321
CPU usage (%): 97.894
Max. virtual memory (cumulated for all children) (Kb): 921628

Verifier Data

ERROR: no interpretation found !