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-roll3000.opb
MD5SUM8932ff592f10c4a440d98245533252f1
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 128000000000
Number of bits of the biggest number in a constraint 37
Biggest sum of numbers in a constraint 265438953471
Number of bits of the biggest sum of numbers38
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables7611
Total number of constraints3459
Number of constraints which are clauses143
Number of constraints which are cardinality constraints (but not clauses)626
Number of constraints which are nor clauses,nor cardinality constraints2690
Minimum length of a constraint1
Maximum length of a constraint2047

Trace number 10424

Launcher Data

LAUNCH ON wulflinc28 THE 2005-09-23 18:16:36 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9184 boxname=wulflinc28 idbench=980 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  8932ff592f10c4a440d98245533252f1  /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-13-7-roll3000.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-13-7-roll3000.opb
IDLAUNCH: 9184
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.188
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		: 451.188
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:        932856 kB
Buffers:         12440 kB
Cached:          72220 kB
SwapCached:          0 kB
Active:          45024 kB
Inactive:        42508 kB
HighTotal:      131008 kB
HighFree:        54628 kB
LowTotal:       903652 kB
LowFree:        878228 kB
SwapTotal:     2097640 kB
SwapFree:      2097640 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8708 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 18:18:06 (client local time) WITH STATUS 0 IN 87.8036 SECONDS
stats: 9184 7 87.8036 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/10107/stat): 10107 (pb2sat) R 10106 10107 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22241281 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10107/statm): 373 2 364 364 0 9 0
[pid=10107] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-13-7-roll3000.opb

[startup+10.0017 s]
Raw data (loadavg): 0.93 0.95 0.93 2/55 10107
Raw data (/proc/10107/stat): 10107 (pb2sat) R 10106 10107 4005 0 -1 0 28357 0 0 0 929 67 0 0 25 0 1 0 22241281 80588800 17193 4294967295 134512640 135987407 3221224560 3221204976 134892734 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10107/statm): 19675 17193 364 364 0 19311 0
[pid=10107] vsize: 78700
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 78700

[startup+20.0024 s]
Raw data (loadavg): 0.94 0.96 0.93 2/55 10107
Raw data (/proc/10107/stat): 10107 (pb2sat) R 10106 10107 4005 0 -1 0 57276 0 0 0 1859 136 0 0 25 0 1 0 22241281 158167040 34857 4294967295 134512640 135987407 3221224560 3221173168 134856487 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10107/statm): 38615 34858 364 364 0 38251 0
[pid=10107] vsize: 154460
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 154460

[startup+30.0031 s]
Raw data (loadavg): 0.95 0.96 0.93 2/55 10107
Raw data (/proc/10107/stat): 10107 (pb2sat) R 10106 10107 4005 0 -1 0 97634 0 0 0 2768 225 0 0 25 0 1 0 22241281 308457472 52996 4294967295 134512640 135987407 3221224560 3221176352 134887796 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10107/statm): 75307 52996 364 364 0 74943 0
[pid=10107] vsize: 301228
Current children cumulated CPU time (s) 29.93
Current children cumulated vsize (Kb) 301228

[startup+40.0028 s]
Raw data (loadavg): 0.95 0.96 0.93 2/55 10107
Raw data (/proc/10107/stat): 10107 (pb2sat) R 10106 10107 4005 0 -1 0 115452 0 0 0 3723 270 0 0 25 0 1 0 22241281 313323520 70520 4294967295 134512640 135987407 3221224560 3221201356 135480510 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10107/statm): 76495 70520 364 364 0 76131 0
[pid=10107] vsize: 305980
Current children cumulated CPU time (s) 39.93
Current children cumulated vsize (Kb) 305980

[startup+50.0045 s]
Raw data (loadavg): 0.96 0.96 0.93 2/55 10107
Raw data (/proc/10107/stat): 10107 (pb2sat) R 10106 10107 4005 0 -1 0 180920 0 0 0 4576 411 0 0 25 0 1 0 22241281 542605312 91803 4294967295 134512640 135987407 3221224560 3221203040 134856568 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10107/statm): 132472 91803 364 364 0 132108 0
[pid=10107] vsize: 529888
Current children cumulated CPU time (s) 49.87
Current children cumulated vsize (Kb) 529888

[startup+60.0051 s]
Raw data (loadavg): 0.97 0.96 0.93 2/55 10107
Raw data (/proc/10107/stat): 10107 (pb2sat) R 10106 10107 4005 0 -1 0 196307 0 0 0 5536 451 0 0 25 0 1 0 22241281 580349952 106936 4294967295 134512640 135987407 3221224560 3221169708 135484752 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10107/statm): 141687 106936 364 364 0 141323 0
[pid=10107] vsize: 566748
Current children cumulated CPU time (s) 59.87
Current children cumulated vsize (Kb) 566748

[startup+70.0058 s]
Raw data (loadavg): 0.97 0.96 0.93 2/55 10107
Raw data (/proc/10107/stat): 10107 (pb2sat) R 10106 10107 4005 0 -1 0 213944 0 0 0 6494 493 0 0 25 0 1 0 22241281 588673024 124295 4294967295 134512640 135987407 3221224560 3220649152 134560691 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10107/statm): 143719 124295 364 364 0 143355 0
[pid=10107] vsize: 574876
Current children cumulated CPU time (s) 69.87
Current children cumulated vsize (Kb) 574876

[startup+80.0075 s]
Raw data (loadavg): 0.98 0.96 0.93 2/55 10107
Raw data (/proc/10107/stat): 10107 (pb2sat) R 10106 10107 4005 0 -1 0 231142 0 0 0 7455 530 0 0 25 0 1 0 22241281 661172224 141286 4294967295 134512640 135987407 3221224560 3221026012 135487876 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10107/statm): 161419 141286 364 364 0 161055 0
[pid=10107] vsize: 645676
Current children cumulated CPU time (s) 79.85
Current children cumulated vsize (Kb) 645676



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+87.6378 s]
Raw data (loadavg): 0.98 0.96 0.93 1/55 10107
Raw data (/proc/10107/stat): 10107 (pb2sat) T 10106 10107 4005 0 -1 0 243996 0 0 0 8187 560 0 0 25 0 1 0 22241281 955715584 153954 4294967295 134512640 135987407 3221224560 3220797024 135544035 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/10107/statm): 233329 153954 364 364 0 232965 0
[pid=10107] vsize: 933316
Current children cumulated CPU time (s) 87.47
Current children cumulated vsize (Kb) 933316

Sending SIGTERM to -10107
Sleeping 2 seconds
Sending SIGKILL to -10107
One traced child (pid=10107) 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): 89.9581
CPU time (s): 87.8036
CPU user time (s): 81.8846
CPU system time (s): 5.9191
CPU usage (%): 97.605
Max. virtual memory (cumulated for all children) (Kb): 933316

Verifier Data

ERROR: no interpretation found !