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-degen2.opb
MD5SUM30256c883dd8af773c334a2b26410bd9
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 9400
Biggest coefficient in the objective function 2494038016
Number of bits for the biggest coefficient in the objective function 32
Sum of the numbers in the objective function 391862963250
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 2494038016
Number of bits of the biggest number in a constraint 32
Biggest sum of numbers in a constraint 391862963250
Number of bits of the biggest sum of numbers39
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables10680
Total number of constraints444
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 constraints444
Minimum length of a constraint40
Maximum length of a constraint1700

Trace number 10263

Launcher Data

LAUNCH ON wulflinc24 THE 2005-09-23 17:44:18 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9010 boxname=wulflinc24 idbench=806 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  30256c883dd8af773c334a2b26410bd9  /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-13-7-degen2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-13-7-degen2.opb
IDLAUNCH: 9010
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.047
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		: 451.047
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:        893084 kB
Buffers:         15672 kB
Cached:         106524 kB
SwapCached:          0 kB
Active:          67824 kB
Inactive:        57336 kB
HighTotal:      131008 kB
HighFree:        22512 kB
LowTotal:       903652 kB
LowFree:        870572 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10816 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:45:53 (client local time) WITH STATUS 0 IN 92.5859 SECONDS
stats: 9010 7 92.5859 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/9472/stat): 9472 (pb2sat) R 9471 9472 4059 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22080110 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9472/statm): 373 2 364 364 0 9 0
[pid=9472] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-13-7-degen2.opb

[startup+10.0022 s]
Raw data (loadavg): 0.91 0.95 0.95 2/55 9472
Raw data (/proc/9472/stat): 9472 (pb2sat) R 9471 9472 4059 0 -1 0 28250 0 0 0 930 65 0 0 25 0 1 0 22080110 93503488 17111 4294967295 134512640 135987407 3221224560 3220847776 134887877 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9472/statm): 22828 17111 364 364 0 22464 0
[pid=9472] vsize: 91312
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 91312

[startup+20.0029 s]
Raw data (loadavg): 0.92 0.96 0.95 2/55 9472
Raw data (/proc/9472/stat): 9472 (pb2sat) R 9471 9472 4059 0 -1 0 55243 0 0 0 1870 123 0 0 25 0 1 0 22080110 170135552 32880 4294967295 134512640 135987407 3221224560 3221183728 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9472/statm): 41537 32880 364 364 0 41173 0
[pid=9472] vsize: 166148
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 166148

[startup+30.0036 s]
Raw data (loadavg): 0.94 0.96 0.95 2/55 9472
Raw data (/proc/9472/stat): 9472 (pb2sat) R 9471 9472 4059 0 -1 0 95651 0 0 0 2784 207 0 0 25 0 1 0 22080110 285790208 51062 4294967295 134512640 135987407 3221224560 3221147488 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9472/statm): 69773 51062 364 364 0 69409 0
[pid=9472] vsize: 279092
Current children cumulated CPU time (s) 29.91
Current children cumulated vsize (Kb) 279092

[startup+40.0043 s]
Raw data (loadavg): 0.94 0.96 0.95 2/55 9472
Raw data (/proc/9472/stat): 9472 (pb2sat) R 9471 9472 4059 0 -1 0 111435 0 0 0 3745 246 0 0 25 0 1 0 22080110 324075520 66587 4294967295 134512640 135987407 3221224560 3221157000 134893009 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9472/statm): 79120 66587 364 364 0 78756 0
[pid=9472] vsize: 316480
Current children cumulated CPU time (s) 39.91
Current children cumulated vsize (Kb) 316480

[startup+50.005 s]
Raw data (loadavg): 0.95 0.96 0.95 2/55 9472
Raw data (/proc/9472/stat): 9472 (pb2sat) R 9471 9472 4059 0 -1 0 152816 0 0 0 4654 332 0 0 25 0 1 0 22080110 458108928 89366 4294967295 134512640 135987407 3221224560 3220912092 135500012 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9472/statm): 111843 89366 364 364 0 111479 0
[pid=9472] vsize: 447372
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 447372

[startup+60.0057 s]
Raw data (loadavg): 0.96 0.96 0.95 2/55 9472
Raw data (/proc/9472/stat): 9472 (pb2sat) R 9471 9472 4059 0 -1 0 189831 0 0 0 5571 416 0 0 25 0 1 0 22080110 590696448 100586 4294967295 134512640 135987407 3221224560 3221168868 135477872 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9472/statm): 144213 100586 364 364 0 143849 0
[pid=9472] vsize: 576852
Current children cumulated CPU time (s) 59.87
Current children cumulated vsize (Kb) 576852

[startup+70.0064 s]
Raw data (loadavg): 0.97 0.96 0.95 2/55 9472
Raw data (/proc/9472/stat): 9472 (pb2sat) R 9471 9472 4059 0 -1 0 206399 0 0 0 6530 456 0 0 25 0 1 0 22080110 595021824 116878 4294967295 134512640 135987407 3221224560 3221137500 135499901 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9472/statm): 145269 116878 364 364 0 144905 0
[pid=9472] vsize: 581076
Current children cumulated CPU time (s) 69.86
Current children cumulated vsize (Kb) 581076

[startup+80.0071 s]
Raw data (loadavg): 0.97 0.96 0.95 2/55 9472
Raw data (/proc/9472/stat): 9472 (pb2sat) R 9471 9472 4059 0 -1 0 223010 0 0 0 7485 501 0 0 25 0 1 0 22080110 599617536 133213 4294967295 134512640 135987407 3221224560 3221180844 135499901 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9472/statm): 146391 133213 364 364 0 146027 0
[pid=9472] vsize: 585564
Current children cumulated CPU time (s) 79.86
Current children cumulated vsize (Kb) 585564

[startup+90.0078 s]
Raw data (loadavg): 0.97 0.96 0.95 2/55 9472
Raw data (/proc/9472/stat): 9472 (pb2sat) R 9471 9472 4059 0 -1 0 236237 0 0 0 8450 534 0 0 25 0 1 0 22080110 653463552 146221 4294967295 134512640 135987407 3221224560 3221153676 135480478 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9472/statm): 159537 146221 364 364 0 159173 0
[pid=9472] vsize: 638148
Current children cumulated CPU time (s) 89.84
Current children cumulated vsize (Kb) 638148



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+92.4106 s]
Raw data (loadavg): 0.98 0.96 0.95 1/55 9472
Raw data (/proc/9472/stat): 9472 (pb2sat) T 9471 9472 4059 0 -1 0 242191 0 0 0 8677 547 0 0 25 0 1 0 22080110 943816704 152040 4294967295 134512640 135987407 3221224560 3221129212 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/9472/statm): 230424 152040 364 364 0 230060 0
[pid=9472] vsize: 921696
Current children cumulated CPU time (s) 92.24
Current children cumulated vsize (Kb) 921696

Sending SIGTERM to -9472
Sleeping 2 seconds
Sending SIGKILL to -9472
One traced child (pid=9472) 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): 94.7325
CPU time (s): 92.5859
CPU user time (s): 86.7938
CPU system time (s): 5.79212
CPU usage (%): 97.7341
Max. virtual memory (cumulated for all children) (Kb): 921696

Verifier Data

ERROR: no interpretation found !