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/unibo/normalized-mps-v2-13-7-roll3000.opb
MD5SUMa7433a26e92d47a3d337e0c2b98bd409
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 10602

Launcher Data

LAUNCH ON wulflinc25 THE 2005-09-23 19:14:16 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9357 boxname=wulflinc25 idbench=1153 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a7433a26e92d47a3d337e0c2b98bd409  /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-13-7-roll3000.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-13-7-roll3000.opb
IDLAUNCH: 9357
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.002
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		: 451.002
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:        909168 kB
Buffers:         18568 kB
Cached:          87308 kB
SwapCached:          0 kB
Active:          47984 kB
Inactive:        60780 kB
HighTotal:      131008 kB
HighFree:        40460 kB
LowTotal:       903652 kB
LowFree:        868708 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:            11144 kB
Committed_AS:    63632 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 19:15:48 (client local time) WITH STATUS 0 IN 88.9465 SECONDS
stats: 9357 7 88.9465 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/10994/stat): 10994 (pb2sat) R 10993 10994 4004 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22588918 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10994/statm): 373 2 364 364 0 9 0
[pid=10994] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-13-7-roll3000.opb

[startup+10.0016 s]
Raw data (loadavg): 0.86 0.95 0.91 2/55 10994
Raw data (/proc/10994/stat): 10994 (pb2sat) T 10993 10994 4004 0 -1 0 27585 0 0 0 933 64 0 0 25 0 1 0 22588918 80453632 16434 4294967295 134512640 135987407 3221224560 3221183484 135635874 0 0 5 16384 3222434789 0 0 17 1 0 0
Raw data (/proc/10994/statm): 19642 16434 364 364 0 19278 0
[pid=10994] vsize: 78568
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 78568

[startup+20.0022 s]
Raw data (loadavg): 0.88 0.95 0.91 2/55 10994
Raw data (/proc/10994/stat): 10994 (pb2sat) R 10993 10994 4004 0 -1 0 56556 0 0 0 1863 133 0 0 25 0 1 0 22588918 158167040 34150 4294967295 134512640 135987407 3221224560 3221211756 135480490 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10994/statm): 38615 34150 364 364 0 38251 0
[pid=10994] vsize: 154460
Current children cumulated CPU time (s) 19.96
Current children cumulated vsize (Kb) 154460

[startup+30.0018 s]
Raw data (loadavg): 0.90 0.95 0.91 2/55 10994
Raw data (/proc/10994/stat): 10994 (pb2sat) R 10993 10994 4004 0 -1 0 96877 0 0 0 2773 220 0 0 25 0 1 0 22588918 308457472 52252 4294967295 134512640 135987407 3221224560 3221205320 135486795 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10994/statm): 75307 52252 364 364 0 74943 0
[pid=10994] vsize: 301228
Current children cumulated CPU time (s) 29.93
Current children cumulated vsize (Kb) 301228

[startup+40.0024 s]
Raw data (loadavg): 0.91 0.95 0.91 2/55 10994
Raw data (/proc/10994/stat): 10994 (pb2sat) R 10993 10994 4004 0 -1 0 114494 0 0 0 3729 264 0 0 25 0 1 0 22588918 313323520 69578 4294967295 134512640 135987407 3221224560 3221180172 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10994/statm): 76495 69578 364 364 0 76131 0
[pid=10994] vsize: 305980
Current children cumulated CPU time (s) 39.93
Current children cumulated vsize (Kb) 305980

[startup+50.003 s]
Raw data (loadavg): 0.93 0.96 0.91 2/55 10994
Raw data (/proc/10994/stat): 10994 (pb2sat) R 10993 10994 4004 0 -1 0 179886 0 0 0 4583 405 0 0 25 0 1 0 22588918 542605312 90787 4294967295 134512640 135987407 3221224560 3221187216 134854986 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10994/statm): 132472 90787 364 364 0 132108 0
[pid=10994] vsize: 529888
Current children cumulated CPU time (s) 49.88
Current children cumulated vsize (Kb) 529888

[startup+60.0036 s]
Raw data (loadavg): 0.94 0.96 0.91 2/55 10994
Raw data (/proc/10994/stat): 10994 (pb2sat) R 10993 10994 4004 0 -1 0 195192 0 0 0 5547 441 0 0 25 0 1 0 22588918 580349952 105841 4294967295 134512640 135987407 3221224560 3221206400 134856581 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10994/statm): 141687 105841 364 364 0 141323 0
[pid=10994] vsize: 566748
Current children cumulated CPU time (s) 59.88
Current children cumulated vsize (Kb) 566748

[startup+70.0042 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 10994
Raw data (/proc/10994/stat): 10994 (pb2sat) R 10993 10994 4004 0 -1 0 211529 0 0 0 6505 483 0 0 25 0 1 0 22588918 585838592 121910 4294967295 134512640 135987407 3221224560 3220609856 134558471 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10994/statm): 143027 121910 364 364 0 142663 0
[pid=10994] vsize: 572108
Current children cumulated CPU time (s) 69.88
Current children cumulated vsize (Kb) 572108

[startup+80.0049 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 10994
Raw data (/proc/10994/stat): 10994 (pb2sat) R 10993 10994 4004 0 -1 0 228819 0 0 0 7460 526 0 0 25 0 1 0 22588918 658337792 138992 4294967295 134512640 135987407 3221224560 3221020700 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10994/statm): 160727 138992 364 364 0 160363 0
[pid=10994] vsize: 642908
Current children cumulated CPU time (s) 79.86
Current children cumulated vsize (Kb) 642908



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+88.7715 s]
Raw data (loadavg): 0.96 0.96 0.91 1/55 10994
Raw data (/proc/10994/stat): 10994 (pb2sat) T 10993 10994 4004 0 -1 0 244055 0 0 0 8304 557 0 0 25 0 1 0 22588918 955990016 154013 4294967295 134512640 135987407 3221224560 3220797024 135544035 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/10994/statm): 233396 154013 364 364 0 233032 0
[pid=10994] vsize: 933584
Current children cumulated CPU time (s) 88.61
Current children cumulated vsize (Kb) 933584

Sending SIGTERM to -10994
Sleeping 2 seconds

[startup+90.0054 s]
Raw data (loadavg): 0.96 0.96 0.91 1/56 10995
Raw data (/proc/10994/stat): 10994 (pb2sat) S 10993 10994 4004 0 -1 0 244056 0 0 0 8305 557 0 0 25 0 1 0 22588918 955990016 154014 4294967295 134512640 135987407 3221224560 3220795528 135549753 0 16384 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10994/statm): 233396 154014 364 364 0 233032 0
[pid=10994] vsize: 933584
Current children cumulated CPU time (s) 88.62
Current children cumulated vsize (Kb) 933584
Sending SIGKILL to -10994
One traced child (pid=10994) 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): 91.091
CPU time (s): 88.9465
CPU user time (s): 83.0554
CPU system time (s): 5.8911
CPU usage (%): 97.6458
Max. virtual memory (cumulated for all children) (Kb): 933584

Verifier Data

ERROR: no interpretation found !