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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-scrs8.opb
MD5SUMf909afc4ad4c57b225953e69f0f7b926
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 16500
Biggest coefficient in the objective function 278154827530240000
Number of bits for the biggest coefficient in the objective function 58
Sum of the numbers in the objective function 7024858555092325200
Number of bits of the sum of numbers in the objective function 63
Biggest number in a constraint 278154827530240000
Number of bits of the biggest number in a constraint 58
Biggest sum of numbers in a constraint 7024858555092325200
Number of bits of the biggest sum of numbers63
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark891.822
Number of variables23380
Total number of constraints490
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints490
Minimum length of a constraint20
Maximum length of a constraint740

Trace number 10301

Launcher Data

LAUNCH ON wulflinc9 THE 2005-09-23 17:48:25 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9050 boxname=wulflinc9 idbench=846 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  f909afc4ad4c57b225953e69f0f7b926  /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-scrs8.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-scrs8.opb
IDLAUNCH: 9050
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        904784 kB
Buffers:         13172 kB
Cached:          99096 kB
SwapCached:          0 kB
Active:          53812 kB
Inactive:        61340 kB
HighTotal:      131008 kB
HighFree:        28812 kB
LowTotal:       903652 kB
LowFree:        875972 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9096 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:50:05 (client local time) WITH STATUS 0 IN 97.1382 SECONDS
stats: 9050 7 97.1382 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/11035/stat): 11035 (pb2sat) R 11034 11035 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22112122 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/11035/statm): 373 2 364 364 0 9 0
[pid=11035] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-scrs8.opb

[startup+10.0017 s]
Raw data (loadavg): 0.85 0.92 0.92 2/55 11035
Raw data (/proc/11035/stat): 11035 (pb2sat) R 11034 11035 4060 0 -1 0 19191 0 0 0 952 44 0 0 25 0 1 0 22112122 60014592 11095 4294967295 134512640 135987407 3221224560 3221208440 135487898 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11035/statm): 14652 11095 364 364 0 14288 0
[pid=11035] vsize: 58608
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 58608

[startup+20.0025 s]
Raw data (loadavg): 0.88 0.92 0.92 2/55 11035
Raw data (/proc/11035/stat): 11035 (pb2sat) R 11034 11035 4060 0 -1 0 50048 0 0 0 1889 105 0 0 25 0 1 0 22112122 163299328 27648 4294967295 134512640 135987407 3221224560 3221210720 134877726 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11035/statm): 39868 27648 364 364 0 39504 0
[pid=11035] vsize: 159472
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 159472

[startup+30.0033 s]
Raw data (loadavg): 0.89 0.92 0.92 2/55 11035
Raw data (/proc/11035/stat): 11035 (pb2sat) R 11034 11035 4060 0 -1 0 77863 0 0 0 2834 158 0 0 25 0 1 0 22112122 229568512 45521 4294967295 134512640 135987407 3221224560 3221203644 135484951 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11035/statm): 56047 45521 364 364 0 55683 0
[pid=11035] vsize: 224188
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 224188

[startup+40.0041 s]
Raw data (loadavg): 0.91 0.93 0.92 2/55 11035
Raw data (/proc/11035/stat): 11035 (pb2sat) R 11034 11035 4060 0 -1 0 102737 0 0 0 3782 210 0 0 25 0 1 0 22112122 317374464 57884 4294967295 134512640 135987407 3221224560 3221208768 134866159 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11035/statm): 77484 57885 364 364 0 77120 0
[pid=11035] vsize: 309936
Current children cumulated CPU time (s) 39.92
Current children cumulated vsize (Kb) 309936

[startup+50.0049 s]
Raw data (loadavg): 0.92 0.93 0.92 2/55 11035
Raw data (/proc/11035/stat): 11035 (pb2sat) R 11034 11035 4060 0 -1 0 130732 0 0 0 4726 264 0 0 25 0 1 0 22112122 489598976 85164 4294967295 134512640 135987407 3221224560 3221209424 134856581 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11035/statm): 119531 85164 364 364 0 119167 0
[pid=11035] vsize: 478124
Current children cumulated CPU time (s) 49.9
Current children cumulated vsize (Kb) 478124

[startup+60.0047 s]
Raw data (loadavg): 0.93 0.93 0.92 2/55 11035
Raw data (/proc/11035/stat): 11035 (pb2sat) R 11034 11035 4060 0 -1 0 181172 0 0 0 5626 363 0 0 25 0 1 0 22112122 549912576 91891 4294967295 134512640 135987407 3221224560 3221203692 135500012 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11035/statm): 134256 91891 364 364 0 133892 0
[pid=11035] vsize: 537024
Current children cumulated CPU time (s) 59.89
Current children cumulated vsize (Kb) 537024

[startup+70.0054 s]
Raw data (loadavg): 0.94 0.93 0.92 2/55 11035
Raw data (/proc/11035/stat): 11035 (pb2sat) R 11034 11035 4060 0 -1 0 193724 0 0 0 6600 388 0 0 25 0 1 0 22112122 587255808 104222 4294967295 134512640 135987407 3221224560 3221210896 134802857 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11035/statm): 143373 104222 364 364 0 143009 0
[pid=11035] vsize: 573492
Current children cumulated CPU time (s) 69.88
Current children cumulated vsize (Kb) 573492

[startup+80.0062 s]
Raw data (loadavg): 0.95 0.93 0.92 2/55 11035
Raw data (/proc/11035/stat): 11035 (pb2sat) R 11034 11035 4060 0 -1 0 208622 0 0 0 7571 416 0 0 25 0 1 0 22112122 592265216 118859 4294967295 134512640 135987407 3221224560 3221209080 135488056 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11035/statm): 144596 118859 364 364 0 144232 0
[pid=11035] vsize: 578384
Current children cumulated CPU time (s) 79.87
Current children cumulated vsize (Kb) 578384

[startup+90.006 s]
Raw data (loadavg): 0.96 0.94 0.92 2/55 11035
Raw data (/proc/11035/stat): 11035 (pb2sat) R 11034 11035 4060 0 -1 0 223540 0 0 0 8538 448 0 0 25 0 1 0 22112122 597270528 133516 4294967295 134512640 135987407 3221224560 3221204492 134636973 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11035/statm): 145818 133516 364 364 0 145454 0
[pid=11035] vsize: 583272
Current children cumulated CPU time (s) 89.86
Current children cumulated vsize (Kb) 583272



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+96.9711 s]
Raw data (loadavg): 0.96 0.94 0.92 1/55 11035
Raw data (/proc/11035/stat): 11035 (pb2sat) T 11034 11035 4060 0 -1 0 234150 0 0 0 9211 470 0 0 25 0 1 0 22112122 943792128 143911 4294967295 134512640 135987407 3221224560 3221213548 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/11035/statm): 230418 143911 364 364 0 230054 0
[pid=11035] vsize: 921672
Current children cumulated CPU time (s) 96.81
Current children cumulated vsize (Kb) 921672

Sending SIGTERM to -11035
Sleeping 2 seconds
Sending SIGKILL to -11035
One traced child (pid=11035) 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): 99.2697
CPU time (s): 97.1382
CPU user time (s): 92.141
CPU system time (s): 4.99724
CPU usage (%): 97.8529
Max. virtual memory (cumulated for all children) (Kb): 921672

Verifier Data

ERROR: no interpretation found !