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-aflow40b.opb
MD5SUM7872170cf5be0e3f0e6be125266c16ee
Bench Categoryoptimization, small integers (OPTSMALLINT)
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 1364
Biggest coefficient in the objective function 500
Number of bits for the biggest coefficient in the objective function 9
Sum of the numbers in the objective function 230637
Number of bits of the sum of numbers in the objective function 18
Biggest number in a constraint 12800
Number of bits of the biggest number in a constraint 14
Biggest sum of numbers in a constraint 879673
Number of bits of the biggest sum of numbers20
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables19292
Total number of constraints4170
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)1403
Number of constraints which are nor clauses,nor cardinality constraints2767
Minimum length of a constraint1
Maximum length of a constraint980

Trace number 10384

Launcher Data

LAUNCH ON wulflinc30 THE 2005-09-23 18:01:18 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9144 boxname=wulflinc30 idbench=940 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  7872170cf5be0e3f0e6be125266c16ee  /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-13-7-aflow40b.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-13-7-aflow40b.opb
IDLAUNCH: 9144
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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:        934112 kB
Buffers:         12556 kB
Cached:          70608 kB
SwapCached:          0 kB
Active:          44304 kB
Inactive:        41768 kB
HighTotal:      131008 kB
HighFree:        56420 kB
LowTotal:       903652 kB
LowFree:        877692 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              36 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8880 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 18:02:55 (client local time) WITH STATUS 0 IN 94.5546 SECONDS
stats: 9144 7 94.5546 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/10459/stat): 10459 (pb2sat) R 10458 10459 4004 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22147713 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/10459/statm): 373 2 364 364 0 9 0
[pid=10459] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-13-7-aflow40b.opb

[startup+10.0021 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 10461
Raw data (/proc/10459/stat): 10459 (pb2sat) R 10458 10459 4004 0 -1 0 27563 0 0 0 929 66 0 0 25 0 1 0 22147713 87072768 16430 4294967295 134512640 135987407 3221224560 3221205808 134878060 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10459/statm): 21258 16430 364 364 0 20894 0
[pid=10459] vsize: 85032
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 85032

[startup+20.0029 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 10461
Raw data (/proc/10459/stat): 10459 (pb2sat) R 10458 10459 4004 0 -1 0 54927 0 0 0 1863 130 0 0 25 0 1 0 22147713 164540416 32567 4294967295 134512640 135987407 3221224560 3221081180 134637015 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10459/statm): 40171 32567 364 364 0 39807 0
[pid=10459] vsize: 160684
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 160684

[startup+30.0037 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 10461
Raw data (/proc/10459/stat): 10459 (pb2sat) R 10458 10459 4004 0 -1 0 95171 0 0 0 2778 213 0 0 25 0 1 0 22147713 281546752 50596 4294967295 134512640 135987407 3221224560 3221221056 134636930 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10459/statm): 68737 50596 364 364 0 68373 0
[pid=10459] vsize: 274948
Current children cumulated CPU time (s) 29.91
Current children cumulated vsize (Kb) 274948

[startup+40.0046 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 10461
Raw data (/proc/10459/stat): 10459 (pb2sat) R 10458 10459 4004 0 -1 0 110039 0 0 0 3747 243 0 0 25 0 1 0 22147713 318750720 65217 4294967295 134512640 135987407 3221224560 3221029752 135486800 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10459/statm): 77820 65217 364 364 0 77456 0
[pid=10459] vsize: 311280
Current children cumulated CPU time (s) 39.9
Current children cumulated vsize (Kb) 311280

[startup+50.0054 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 10461
Raw data (/proc/10459/stat): 10459 (pb2sat) R 10458 10459 4004 0 -1 0 152189 0 0 0 4655 330 0 0 25 0 1 0 22147713 447909888 87741 4294967295 134512640 135987407 3221224560 3221127908 135477853 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10459/statm): 109353 87741 364 364 0 108989 0
[pid=10459] vsize: 437412
Current children cumulated CPU time (s) 49.85
Current children cumulated vsize (Kb) 437412

[startup+60.0062 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 10461
Raw data (/proc/10459/stat): 10459 (pb2sat) R 10458 10459 4004 0 -1 0 188427 0 0 0 5574 411 0 0 25 0 1 0 22147713 586190848 99213 4294967295 134512640 135987407 3221224560 3220958552 135480532 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10459/statm): 143113 99213 364 364 0 142749 0
[pid=10459] vsize: 572452
Current children cumulated CPU time (s) 59.85
Current children cumulated vsize (Kb) 572452

[startup+70.007 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 10461
Raw data (/proc/10459/stat): 10459 (pb2sat) R 10458 10459 4004 0 -1 0 204238 0 0 0 6542 443 0 0 25 0 1 0 22147713 589705216 114761 4294967295 134512640 135987407 3221224560 3221060848 134854964 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10459/statm): 143971 114761 364 364 0 143607 0
[pid=10459] vsize: 575884
Current children cumulated CPU time (s) 69.85
Current children cumulated vsize (Kb) 575884

[startup+80.0078 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 10461
Raw data (/proc/10459/stat): 10459 (pb2sat) R 10458 10459 4004 0 -1 0 220020 0 0 0 7507 477 0 0 25 0 1 0 22147713 594165760 130284 4294967295 134512640 135987407 3221224560 3221095552 134856374 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10459/statm): 145060 130284 364 364 0 144696 0
[pid=10459] vsize: 580240
Current children cumulated CPU time (s) 79.84
Current children cumulated vsize (Kb) 580240

[startup+90.0086 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 10461
Raw data (/proc/10459/stat): 10459 (pb2sat) R 10458 10459 4004 0 -1 0 232578 0 0 0 8477 507 0 0 25 0 1 0 22147713 648011776 142636 4294967295 134512640 135987407 3221224560 3221025632 134856458 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10459/statm): 158206 142636 364 364 0 157842 0
[pid=10459] vsize: 632824
Current children cumulated CPU time (s) 89.84
Current children cumulated vsize (Kb) 632824



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+94.3809 s]
Raw data (loadavg): 0.99 0.97 0.91 1/55 10461
Raw data (/proc/10459/stat): 10459 (pb2sat) T 10458 10459 4004 0 -1 0 244046 0 0 0 8889 531 0 0 25 0 1 0 22147713 943771648 153827 4294967295 134512640 135987407 3221224560 3221097628 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/10459/statm): 230413 153827 364 364 0 230049 0
[pid=10459] vsize: 921652
Current children cumulated CPU time (s) 94.2
Current children cumulated vsize (Kb) 921652

Sending SIGTERM to -10459
Sleeping 2 seconds
Sending SIGKILL to -10459
One traced child (pid=10459) 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): 96.7024
CPU time (s): 94.5546
CPU user time (s): 88.9235
CPU system time (s): 5.63114
CPU usage (%): 97.779
Max. virtual memory (cumulated for all children) (Kb): 921652

Verifier Data

ERROR: no interpretation found !