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-msc98-ip.opb
MD5SUM7d35d9573399ce415b4927ac319735bc
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3092799001216805888
Optimality of the best value was proved NO
Number of terms in the objective function 7440
Biggest coefficient in the objective function 233453000000000000
Number of bits for the biggest coefficient in the objective function 58
Sum of the numbers in the objective function 7418790514839784695
Number of bits of the sum of numbers in the objective function 63
Biggest number in a constraint 233453000000000000
Number of bits of the biggest number in a constraint 58
Biggest sum of numbers in a constraint 7418790514839784695
Number of bits of the biggest sum of numbers63
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1279.9
Number of variables33385
Total number of constraints36969
Number of constraints which are clauses5133
Number of constraints which are cardinality constraints (but not clauses)20819
Number of constraints which are nor clauses,nor cardinality constraints11017
Minimum length of a constraint1
Maximum length of a constraint1209

Trace number 10417

Launcher Data

LAUNCH ON wulflinc27 THE 2005-09-23 18:14:30 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9170 boxname=wulflinc27 idbench=966 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  7d35d9573399ce415b4927ac319735bc  /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-msc98-ip.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-msc98-ip.opb
IDLAUNCH: 9170
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.039
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		: 451.039
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:        926008 kB
Buffers:         12392 kB
Cached:          78932 kB
SwapCached:          0 kB
Active:          49884 kB
Inactive:        44312 kB
HighTotal:      131008 kB
HighFree:        47740 kB
LowTotal:       903652 kB
LowFree:        878268 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8888 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 18:16:13 (client local time) WITH STATUS 0 IN 100.557 SECONDS
stats: 9170 7 100.557 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/10910/stat): 10910 (pb2sat) R 10909 10910 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22228378 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/10910/statm): 373 2 364 364 0 9 0
[pid=10910] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-msc98-ip.opb

[startup+10.0025 s]
Raw data (loadavg): 0.94 0.98 0.95 2/55 10910
Raw data (/proc/10910/stat): 10910 (pb2sat) R 10909 10910 4005 0 -1 0 19722 0 0 0 950 46 0 0 25 0 1 0 22228378 66654208 11734 4294967295 134512640 135987407 3221224560 3221212924 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10910/statm): 16273 11734 364 364 0 15909 0
[pid=10910] vsize: 65092
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 65092

[startup+20.0034 s]
Raw data (loadavg): 0.95 0.98 0.95 2/55 10910
Raw data (/proc/10910/stat): 10910 (pb2sat) R 10909 10910 4005 0 -1 0 48754 0 0 0 1888 106 0 0 25 0 1 0 22228378 147509248 26465 4294967295 134512640 135987407 3221224560 3221217260 134677714 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10910/statm): 36013 26465 364 364 0 35649 0
[pid=10910] vsize: 144052
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 144052

[startup+30.0042 s]
Raw data (loadavg): 0.95 0.98 0.95 2/55 10910
Raw data (/proc/10910/stat): 10910 (pb2sat) R 10909 10910 4005 0 -1 0 75355 0 0 0 2830 163 0 0 25 0 1 0 22228378 230035456 43138 4294967295 134512640 135987407 3221224560 3221211728 134892744 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10910/statm): 56161 43138 364 364 0 55797 0
[pid=10910] vsize: 224644
Current children cumulated CPU time (s) 29.93
Current children cumulated vsize (Kb) 224644

[startup+40.006 s]
Raw data (loadavg): 0.96 0.98 0.95 2/55 10910
Raw data (/proc/10910/stat): 10910 (pb2sat) R 10909 10910 4005 0 -1 0 99602 0 0 0 3777 216 0 0 25 0 1 0 22228378 317706240 54880 4294967295 134512640 135987407 3221224560 3221215984 134537371 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10910/statm): 77565 54880 364 364 0 77201 0
[pid=10910] vsize: 310260
Current children cumulated CPU time (s) 39.93
Current children cumulated vsize (Kb) 310260

[startup+50.0068 s]
Raw data (loadavg): 0.97 0.98 0.95 2/55 10910
Raw data (/proc/10910/stat): 10910 (pb2sat) R 10909 10910 4005 0 -1 0 114031 0 0 0 4744 249 0 0 25 0 1 0 22228378 324247552 69056 4294967295 134512640 135987407 3221224560 3221217840 134556210 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10910/statm): 79162 69056 364 364 0 78798 0
[pid=10910] vsize: 316648
Current children cumulated CPU time (s) 49.93
Current children cumulated vsize (Kb) 316648

[startup+60.0077 s]
Raw data (loadavg): 0.97 0.98 0.95 2/55 10910
Raw data (/proc/10910/stat): 10910 (pb2sat) R 10909 10910 4005 0 -1 0 153886 0 0 0 5657 331 0 0 25 0 1 0 22228378 448978944 89252 4294967295 134512640 135987407 3221224560 3221218560 134877889 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10910/statm): 109614 89252 364 364 0 109250 0
[pid=10910] vsize: 438456
Current children cumulated CPU time (s) 59.88
Current children cumulated vsize (Kb) 438456

[startup+70.0075 s]
Raw data (loadavg): 0.97 0.98 0.95 2/55 10910
Raw data (/proc/10910/stat): 10910 (pb2sat) R 10909 10910 4005 0 -1 0 190572 0 0 0 6575 412 0 0 25 0 1 0 22228378 553562112 101142 4294967295 134512640 135987407 3221224560 3221214112 134854943 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10910/statm): 135147 101142 364 364 0 134783 0
[pid=10910] vsize: 540588
Current children cumulated CPU time (s) 69.87
Current children cumulated vsize (Kb) 540588

[startup+80.0093 s]
Raw data (loadavg): 0.98 0.98 0.95 2/55 10910
Raw data (/proc/10910/stat): 10910 (pb2sat) R 10909 10910 4005 0 -1 0 202308 0 0 0 7550 437 0 0 25 0 1 0 22228378 590901248 112665 4294967295 134512640 135987407 3221224560 3221213596 134636980 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10910/statm): 144263 112665 364 364 0 143899 0
[pid=10910] vsize: 577052
Current children cumulated CPU time (s) 79.87
Current children cumulated vsize (Kb) 577052

[startup+90.0101 s]
Raw data (loadavg): 0.98 0.98 0.95 2/55 10910
Raw data (/proc/10910/stat): 10910 (pb2sat) R 10909 10910 4005 0 -1 0 216517 0 0 0 8521 466 0 0 25 0 1 0 22228378 596045824 126619 4294967295 134512640 135987407 3221224560 3221215648 134537562 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10910/statm): 145519 126619 364 364 0 145155 0
[pid=10910] vsize: 582076
Current children cumulated CPU time (s) 89.87
Current children cumulated vsize (Kb) 582076

[startup+100.01 s]
Raw data (loadavg): 0.98 0.98 0.95 2/55 10910
Raw data (/proc/10910/stat): 10910 (pb2sat) R 10909 10910 4005 0 -1 0 257824 0 0 0 9434 549 0 0 25 0 1 0 22228378 937984000 166731 4294967295 134512640 135987407 3221224560 3221219200 134856594 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10910/statm): 229000 166731 364 364 0 228636 0
[pid=10910] vsize: 916000
Current children cumulated CPU time (s) 99.83
Current children cumulated vsize (Kb) 916000



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+100.342 s]
Raw data (loadavg): 0.98 0.98 0.95 1/55 10910
Raw data (/proc/10910/stat): 10910 (pb2sat) T 10909 10910 4005 0 -1 0 261460 0 0 0 9460 556 0 0 25 0 1 0 22228378 943796224 170243 4294967295 134512640 135987407 3221224560 3221218924 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/10910/statm): 230419 170243 364 364 0 230055 0
[pid=10910] vsize: 921676
Current children cumulated CPU time (s) 100.16
Current children cumulated vsize (Kb) 921676

Sending SIGTERM to -10910
Sleeping 2 seconds
Sending SIGKILL to -10910
One traced child (pid=10910) 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): 102.695
CPU time (s): 100.557
CPU user time (s): 94.6456
CPU system time (s): 5.9111
CPU usage (%): 97.9178
Max. virtual memory (cumulated for all children) (Kb): 921676

Verifier Data

ERROR: no interpretation found !