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-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-nesm.opb
MD5SUMb7fb72cd75b9b276aedcc241f42047cf
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 8142
Biggest coefficient in the objective function 104857600000000000
Number of bits for the biggest coefficient in the objective function 57
Sum of the numbers in the objective function 5247199281280502271
Number of bits of the sum of numbers in the objective function 63
Biggest number in a constraint 1789569420335513600
Number of bits of the biggest number in a constraint 61
Biggest sum of numbers in a constraint 7218026776828457671
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 benchmark34.1068
Number of variables60075
Total number of constraints2258
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 constraints2258
Minimum length of a constraint10
Maximum length of a constraint941

Trace number 9898

Launcher Data

LAUNCH ON wulflinc19 THE 2005-09-23 16:07:38 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8649 boxname=wulflinc19 idbench=445 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b7fb72cd75b9b276aedcc241f42047cf  /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-nesm.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-nesm.opb
IDLAUNCH: 8649
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
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		: 451.169
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:        918528 kB
Buffers:         15316 kB
Cached:          80768 kB
SwapCached:          0 kB
Active:          52744 kB
Inactive:        46236 kB
HighTotal:      131008 kB
HighFree:        46788 kB
LowTotal:       903652 kB
LowFree:        871740 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11552 kB
Committed_AS:    63632 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:09:15 (client local time) WITH STATUS 1 IN 96.7303 SECONDS
stats: 8649 7 96.7303 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc

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/7797/stat): 7797 (pb2sat) R 7796 7797 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21503590 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/7797/statm): 373 2 364 364 0 9 0
[pid=7797] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-nesm.opb

[startup+10.0017 s]
Raw data (loadavg): 0.91 0.94 0.94 2/55 7797
Raw data (/proc/7797/stat): 7797 (pb2sat) R 7796 7797 4060 0 -1 0 26357 0 0 0 937 59 0 0 25 0 1 0 21503590 80515072 15202 4294967295 134512640 135987407 3221224560 3221210112 134866122 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7797/statm): 19657 15202 364 364 0 19293 0
[pid=7797] vsize: 78628
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 78628

[startup+20.0025 s]
Raw data (loadavg): 0.93 0.94 0.94 2/55 7797
Raw data (/proc/7797/stat): 7797 (pb2sat) R 7796 7797 4060 0 -1 0 57546 0 0 0 1867 126 0 0 25 0 1 0 21503590 187305984 35072 4294967295 134512640 135987407 3221224560 3221208180 135478476 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7797/statm): 45729 35072 364 364 0 45365 0
[pid=7797] vsize: 182916
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 182916

[startup+30.0023 s]
Raw data (loadavg): 0.94 0.94 0.94 2/55 7797
Raw data (/proc/7797/stat): 7797 (pb2sat) R 7796 7797 4060 0 -1 0 90310 0 0 0 2805 184 0 0 25 0 1 0 21503590 272265216 57372 4294967295 134512640 135987407 3221224560 3221207880 134641998 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7797/statm): 66471 57372 364 364 0 66107 0
[pid=7797] vsize: 265884
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 265884

[startup+40.0031 s]
Raw data (loadavg): 0.95 0.94 0.94 2/55 7797
Raw data (/proc/7797/stat): 7797 (pb2sat) R 7796 7797 4060 0 -1 0 119961 0 0 0 3745 243 0 0 25 0 1 0 21503590 381292544 74499 4294967295 134512640 135987407 3221224560 3221209104 134864189 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7797/statm): 93089 74499 364 364 0 92725 0
[pid=7797] vsize: 372356
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 372356

[startup+50.004 s]
Raw data (loadavg): 0.95 0.94 0.94 2/55 7797
Raw data (/proc/7797/stat): 7797 (pb2sat) R 7796 7797 4060 0 -1 0 165363 0 0 0 4651 330 0 0 25 0 1 0 21503590 522801152 98219 4294967295 134512640 135987407 3221224560 3221208088 134931089 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7797/statm): 127637 98219 364 364 0 127273 0
[pid=7797] vsize: 510548
Current children cumulated CPU time (s) 49.81
Current children cumulated vsize (Kb) 510548

[startup+60.0038 s]
Raw data (loadavg): 0.96 0.94 0.94 2/55 7797
Raw data (/proc/7797/stat): 7797 (pb2sat) R 7796 7797 4060 0 -1 0 185536 0 0 0 5613 367 0 0 25 0 1 0 21503590 551997440 118120 4294967295 134512640 135987407 3221224560 3221208856 134635399 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7797/statm): 134765 118120 364 364 0 134401 0
[pid=7797] vsize: 539060
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 539060

[startup+70.0046 s]
Raw data (loadavg): 0.97 0.94 0.94 2/55 7797
Raw data (/proc/7797/stat): 7797 (pb2sat) R 7796 7797 4060 0 -1 0 227055 0 0 0 6525 453 0 0 25 0 1 0 21503590 677261312 134833 4294967295 134512640 135987407 3221224560 3221210760 134854861 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7797/statm): 165347 134833 364 364 0 164983 0
[pid=7797] vsize: 661388
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 661388

[startup+80.0054 s]
Raw data (loadavg): 0.97 0.95 0.94 2/55 7797
Raw data (/proc/7797/stat): 7797 (pb2sat) R 7796 7797 4060 0 -1 0 243552 0 0 0 7490 486 0 0 25 0 1 0 21503590 734740480 151108 4294967295 134512640 135987407 3221224560 3221207776 134856587 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7797/statm): 179380 151109 364 364 0 179016 0
[pid=7797] vsize: 717520
Current children cumulated CPU time (s) 79.76
Current children cumulated vsize (Kb) 717520

[startup+90.0062 s]
Raw data (loadavg): 0.98 0.95 0.94 2/55 7797
Raw data (/proc/7797/stat): 7797 (pb2sat) R 7796 7797 4060 0 -1 0 263661 0 0 0 8448 526 0 0 25 0 1 0 21503590 770215936 169391 4294967295 134512640 135987407 3221224560 3221222912 134636939 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7797/statm): 188041 169391 364 364 0 187677 0
[pid=7797] vsize: 752164
Current children cumulated CPU time (s) 89.74
Current children cumulated vsize (Kb) 752164
One traced child (pid=7797) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 96.9915
CPU time (s): 96.7303
CPU user time (s): 91.1161
CPU system time (s): 5.61415
CPU usage (%): 99.7307
Max. virtual memory (cumulated for all children) (Kb): 752164

Verifier Data

ERROR: no interpretation found !