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/miplib/normalized-mps-v2-13-7-misc04.opb
MD5SUM8f93517b37e3e8e201991f7d854ddab3
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 42171551460515200
Number of bits of the biggest number in a constraint 56
Biggest sum of numbers in a constraint 130719213204604475
Number of bits of the biggest sum of numbers57
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables97606
Total number of constraints1755
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)45
Number of constraints which are nor clauses,nor cardinality constraints1710
Minimum length of a constraint1
Maximum length of a constraint3381

Trace number 10354

Launcher Data

LAUNCH ON wulflinc8 THE 2005-09-23 17:54:20 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9108 boxname=wulflinc8 idbench=904 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  8f93517b37e3e8e201991f7d854ddab3  /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-13-7-misc04.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-13-7-misc04.opb
IDLAUNCH: 9108
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.023
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	: 2
cpu MHz		: 451.023
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:        912776 kB
Buffers:         13480 kB
Cached:          90832 kB
SwapCached:          0 kB
Active:          51264 kB
Inactive:        55992 kB
HighTotal:      131008 kB
HighFree:        37100 kB
LowTotal:       903652 kB
LowFree:        875676 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              52 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:             9092 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:55:57 (client local time) WITH STATUS 0 IN 94.8206 SECONDS
stats: 9108 7 94.8206 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/10042/stat): 10042 (pb2sat) R 10041 10042 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22158671 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10042/statm): 373 2 364 364 0 9 0
[pid=10042] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-13-7-misc04.opb

[startup+10.0025 s]
Raw data (loadavg): 1.00 0.99 0.96 2/55 10042
Raw data (/proc/10042/stat): 10042 (pb2sat) R 10041 10042 4060 0 -1 0 29098 0 0 0 937 60 0 0 25 0 1 0 22158671 87556096 17956 4294967295 134512640 135987407 3221224560 3221112144 134635350 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10042/statm): 21376 17956 364 364 0 21012 0
[pid=10042] vsize: 85504
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 85504

[startup+20.0033 s]
Raw data (loadavg): 1.00 0.99 0.96 2/55 10042
Raw data (/proc/10042/stat): 10042 (pb2sat) R 10041 10042 4060 0 -1 0 56885 0 0 0 1878 117 0 0 25 0 1 0 22158671 166891520 34513 4294967295 134512640 135987407 3221224560 3221104436 135479922 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10042/statm): 40745 34513 364 364 0 40381 0
[pid=10042] vsize: 162980
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 162980

[startup+30.0041 s]
Raw data (loadavg): 1.00 0.99 0.96 2/55 10042
Raw data (/proc/10042/stat): 10042 (pb2sat) R 10041 10042 4060 0 -1 0 95823 0 0 0 2794 199 0 0 25 0 1 0 22158671 316911616 51253 4294967295 134512640 135987407 3221224560 3221097568 134856573 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10042/statm): 77371 51253 364 364 0 77007 0
[pid=10042] vsize: 309484
Current children cumulated CPU time (s) 29.93
Current children cumulated vsize (Kb) 309484

[startup+40.0049 s]
Raw data (loadavg): 1.00 0.99 0.96 2/55 10042
Raw data (/proc/10042/stat): 10042 (pb2sat) R 10041 10042 4060 0 -1 0 111836 0 0 0 3757 236 0 0 25 0 1 0 22158671 323264512 67008 4294967295 134512640 135987407 3221224560 3221081488 134878060 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10042/statm): 78922 67008 364 364 0 78558 0
[pid=10042] vsize: 315688
Current children cumulated CPU time (s) 39.93
Current children cumulated vsize (Kb) 315688

[startup+50.0057 s]
Raw data (loadavg): 1.00 0.99 0.96 2/55 10042
Raw data (/proc/10042/stat): 10042 (pb2sat) R 10041 10042 4060 0 -1 0 154070 0 0 0 4670 319 0 0 25 0 1 0 22158671 452558848 89613 4294967295 134512640 135987407 3221224560 3221125068 135499901 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10042/statm): 110488 89613 364 364 0 110124 0
[pid=10042] vsize: 441952
Current children cumulated CPU time (s) 49.89
Current children cumulated vsize (Kb) 441952

[startup+60.0064 s]
Raw data (loadavg): 1.00 0.99 0.96 2/55 10042
Raw data (/proc/10042/stat): 10042 (pb2sat) R 10041 10042 4060 0 -1 0 189601 0 0 0 5590 399 0 0 25 0 1 0 22158671 589615104 100383 4294967295 134512640 135987407 3221224560 3221098680 135293361 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10042/statm): 143949 100383 364 364 0 143585 0
[pid=10042] vsize: 575796
Current children cumulated CPU time (s) 59.89
Current children cumulated vsize (Kb) 575796

[startup+70.0072 s]
Raw data (loadavg): 1.00 0.99 0.96 2/55 10042
Raw data (/proc/10042/stat): 10042 (pb2sat) R 10041 10042 4060 0 -1 0 205544 0 0 0 6557 431 0 0 25 0 1 0 22158671 595456000 116067 4294967295 134512640 135987407 3221224560 3221094272 134860997 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10042/statm): 145375 116067 364 364 0 145011 0
[pid=10042] vsize: 581500
Current children cumulated CPU time (s) 69.88
Current children cumulated vsize (Kb) 581500

[startup+80.009 s]
Raw data (loadavg): 1.00 0.99 0.96 2/55 10042
Raw data (/proc/10042/stat): 10042 (pb2sat) R 10041 10042 4060 0 -1 0 223566 0 0 0 7515 472 0 0 25 0 1 0 22158671 611676160 133840 4294967295 134512640 135987407 3221224560 3221084064 134854956 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10042/statm): 149335 133840 364 364 0 148971 0
[pid=10042] vsize: 597340
Current children cumulated CPU time (s) 79.87
Current children cumulated vsize (Kb) 597340

[startup+90.0088 s]
Raw data (loadavg): 1.00 0.99 0.96 2/55 10042
Raw data (/proc/10042/stat): 10042 (pb2sat) R 10041 10042 4060 0 -1 0 236713 0 0 0 8485 502 0 0 25 0 1 0 22158671 667684864 146779 4294967295 134512640 135987407 3221224560 3221155132 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10042/statm): 163009 146779 364 364 0 162645 0
[pid=10042] vsize: 652036
Current children cumulated CPU time (s) 89.87
Current children cumulated vsize (Kb) 652036



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+94.6324 s]
Raw data (loadavg): 1.00 0.99 0.96 1/55 10042
Raw data (/proc/10042/stat): 10042 (pb2sat) T 10041 10042 4060 0 -1 0 242865 0 0 0 8934 514 0 0 25 0 1 0 22158671 953442304 152823 4294967295 134512640 135987407 3221224560 3221082960 135544035 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/10042/statm): 232774 152823 364 364 0 232410 0
[pid=10042] vsize: 931096
Current children cumulated CPU time (s) 94.48
Current children cumulated vsize (Kb) 931096

Sending SIGTERM to -10042
Sleeping 2 seconds
Sending SIGKILL to -10042
One traced child (pid=10042) 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): 96.9502
CPU time (s): 94.8206
CPU user time (s): 89.3584
CPU system time (s): 5.46217
CPU usage (%): 97.8034
Max. virtual memory (cumulated for all children) (Kb): 931096

Verifier Data

ERROR: no interpretation found !