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/MIPLIB/miplib/normalized-mps-v2-20-10-bell3b.opb
MD5SUMefb36546b6b37df68ff339bb766886b9
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 4510472947583472
Optimality of the best value was proved NO
Number of terms in the objective function 1780
Biggest coefficient in the objective function 50331648000000000
Number of bits for the biggest coefficient in the objective function 56
Sum of the numbers in the objective function 1076758128151185266
Number of bits of the sum of numbers in the objective function 60
Biggest number in a constraint 50331648000000000
Number of bits of the biggest number in a constraint 56
Biggest sum of numbers in a constraint 1076758128151185266
Number of bits of the biggest sum of numbers60
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1195.08
Number of variables2283
Total number of constraints194
Number of constraints which are clauses22
Number of constraints which are cardinality constraints (but not clauses)39
Number of constraints which are nor clauses,nor cardinality constraints133
Minimum length of a constraint1
Maximum length of a constraint195

Trace number 9960

Launcher Data

LAUNCH ON wulflinc29 THE 2005-09-23 16:16:16 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8705 boxname=wulflinc29 idbench=501 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  efb36546b6b37df68ff339bb766886b9  /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-20-10-bell3b.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-20-10-bell3b.opb
IDLAUNCH: 8705
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.077
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		: 451.077
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:        925320 kB
Buffers:         11680 kB
Cached:          80800 kB
SwapCached:          0 kB
Active:          44268 kB
Inactive:        51092 kB
HighTotal:      131008 kB
HighFree:        50596 kB
LowTotal:       903652 kB
LowFree:        874724 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:             8488 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:18:41 (client local time) WITH STATUS 1 IN 145.008 SECONDS
stats: 8705 7 145.008 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 59972996232503928
c big objective detected
c trying from 0 to 511
c CONFLICT during preprocess 
c trying from 512 to 1023

	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/8658/stat): 8658 (pb2sat) R 8657 8658 4005 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21517403 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8658/statm): 373 2 364 364 0 9 0
[pid=8658] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-20-10-bell3b.opb

[startup+10.0019 s]
Raw data (loadavg): 1.05 0.98 0.94 2/55 8658
Raw data (/proc/8658/stat): 8658 (pb2sat) R 8657 8658 4005 0 -1 0 28152 0 0 0 932 65 0 0 25 0 1 0 21517403 83607552 16990 4294967295 134512640 135987407 3221224560 3221210276 135479922 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8658/statm): 20412 16990 364 364 0 20048 0
[pid=8658] vsize: 81648
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 81648

[startup+20.0027 s]
Raw data (loadavg): 1.04 0.98 0.94 2/55 8658
Raw data (/proc/8658/stat): 8658 (pb2sat) R 8657 8658 4005 0 -1 0 54818 0 0 0 1876 121 0 0 25 0 1 0 21517403 160780288 32414 4294967295 134512640 135987407 3221224560 3221207408 134876572 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8658/statm): 39253 32414 364 364 0 38889 0
[pid=8658] vsize: 157012
Current children cumulated CPU time (s) 19.97
Current children cumulated vsize (Kb) 157012

[startup+30.0035 s]
Raw data (loadavg): 1.03 0.98 0.94 2/55 8658
Raw data (/proc/8658/stat): 8658 (pb2sat) R 8657 8658 4005 0 -1 0 93962 0 0 0 2791 203 0 0 25 0 1 0 21517403 276164608 49333 4294967295 134512640 135987407 3221224560 3221206768 134856461 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8658/statm): 67423 49333 364 364 0 67059 0
[pid=8658] vsize: 269692
Current children cumulated CPU time (s) 29.94
Current children cumulated vsize (Kb) 269692

[startup+40.0032 s]
Raw data (loadavg): 1.03 0.98 0.94 2/55 8658
Raw data (/proc/8658/stat): 8658 (pb2sat) R 8657 8658 4005 0 -1 0 108336 0 0 0 3762 232 0 0 25 0 1 0 21517403 316612608 63456 4294967295 134512640 135987407 3221224560 3221204876 134636944 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8658/statm): 77298 63456 364 364 0 76934 0
[pid=8658] vsize: 309192
Current children cumulated CPU time (s) 39.94
Current children cumulated vsize (Kb) 309192

[startup+50.004 s]
Raw data (loadavg): 1.02 0.98 0.94 2/55 8658
Raw data (/proc/8658/stat): 8658 (pb2sat) R 8657 8658 4005 0 -1 0 149410 0 0 0 4675 315 0 0 25 0 1 0 21517403 443879424 84894 4294967295 134512640 135987407 3221224560 3221202908 134636940 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8658/statm): 108369 84894 364 364 0 108005 0
[pid=8658] vsize: 433476
Current children cumulated CPU time (s) 49.9
Current children cumulated vsize (Kb) 433476

[startup+60.0048 s]
Raw data (loadavg): 1.02 0.98 0.94 2/55 8658
Raw data (/proc/8658/stat): 8658 (pb2sat) R 8657 8658 4005 0 -1 0 159701 0 0 0 5643 340 0 0 25 0 1 0 21517403 466530304 92844 4294967295 134512640 135987407 3221224560 3221223248 134811870 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8658/statm): 113899 92844 364 364 0 113535 0
[pid=8658] vsize: 455596
Current children cumulated CPU time (s) 59.83
Current children cumulated vsize (Kb) 455596

[startup+70.0056 s]
Raw data (loadavg): 1.02 0.98 0.94 2/55 8658
Raw data (/proc/8658/stat): 8658 (pb2sat) R 8657 8658 4005 0 -1 0 160405 0 0 0 6624 348 0 0 25 0 1 0 21517403 469852160 93548 4294967295 134512640 135987407 3221224560 3221223248 134811816 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8658/statm): 114710 93548 364 364 0 114346 0
[pid=8658] vsize: 458840
Current children cumulated CPU time (s) 69.72
Current children cumulated vsize (Kb) 458840

[startup+80.0064 s]
Raw data (loadavg): 1.01 0.98 0.94 2/55 8658
Raw data (/proc/8658/stat): 8658 (pb2sat) R 8657 8658 4005 0 -1 0 161069 0 0 0 7613 353 0 0 25 0 1 0 21517403 473161728 94212 4294967295 134512640 135987407 3221224560 3221223248 134811729 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8658/statm): 115518 94212 364 364 0 115154 0
[pid=8658] vsize: 462072
Current children cumulated CPU time (s) 79.66
Current children cumulated vsize (Kb) 462072

[startup+90.0062 s]
Raw data (loadavg): 1.01 0.98 0.94 2/55 8658
Raw data (/proc/8658/stat): 8658 (pb2sat) R 8657 8658 4005 0 -1 0 189868 0 0 0 8543 415 0 0 25 0 1 0 21517403 677203968 122934 4294967295 134512640 135987407 3221224560 3220813712 134887647 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8658/statm): 165333 122934 364 364 0 164969 0
[pid=8658] vsize: 661332
Current children cumulated CPU time (s) 89.58
Current children cumulated vsize (Kb) 661332

[startup+100.007 s]
Raw data (loadavg): 1.01 0.98 0.94 2/55 8658
Raw data (/proc/8658/stat): 8658 (pb2sat) R 8657 8658 4005 0 -1 0 208021 0 0 0 9494 461 0 0 25 0 1 0 21517403 637710336 116267 4294967295 134512640 135987407 3221224560 3220884368 134877726 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8658/statm): 155691 116267 364 364 0 155327 0
[pid=8658] vsize: 622764
Current children cumulated CPU time (s) 99.55
Current children cumulated vsize (Kb) 622764

[startup+110.008 s]
Raw data (loadavg): 1.01 0.98 0.94 2/55 8658
Raw data (/proc/8658/stat): 8658 (pb2sat) R 8657 8658 4005 0 -1 0 225879 0 0 0 10452 501 0 0 25 0 1 0 21517403 666652672 133895 4294967295 134512640 135987407 3221224560 3220653692 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8658/statm): 162757 133895 364 364 0 162393 0
[pid=8658] vsize: 651028
Current children cumulated CPU time (s) 109.53
Current children cumulated vsize (Kb) 651028

[startup+120.009 s]
Raw data (loadavg): 1.00 0.98 0.94 2/55 8658
Raw data (/proc/8658/stat): 8658 (pb2sat) R 8657 8658 4005 0 -1 0 245225 0 0 0 11412 538 0 0 25 0 1 0 21517403 698310656 152994 4294967295 134512640 135987407 3221224560 3221149232 134635423 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8658/statm): 170486 152995 364 364 0 170122 0
[pid=8658] vsize: 681944
Current children cumulated CPU time (s) 119.5
Current children cumulated vsize (Kb) 681944

[startup+130.009 s]
Raw data (loadavg): 1.00 0.98 0.94 2/55 8658
Raw data (/proc/8658/stat): 8658 (pb2sat) R 8657 8658 4005 0 -1 0 260925 0 0 0 12374 575 0 0 25 0 1 0 21517403 737583104 166307 4294967295 134512640 135987407 3221224560 3221222968 134827499 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8658/statm): 180074 166307 364 364 0 179710 0
[pid=8658] vsize: 720296
Current children cumulated CPU time (s) 129.49
Current children cumulated vsize (Kb) 720296

[startup+140.009 s]
Raw data (loadavg): 1.00 0.98 0.94 2/55 8658
Raw data (/proc/8658/stat): 8658 (pb2sat) R 8657 8658 4005 0 -1 0 287969 0 0 0 13298 643 0 0 25 0 1 0 21517403 831733760 189277 4294967295 134512640 135987407 3221224560 3221223376 134802471 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8658/statm): 203060 189277 364 364 0 202696 0
[pid=8658] vsize: 812240
Current children cumulated CPU time (s) 139.41
Current children cumulated vsize (Kb) 812240
One traced child (pid=8658) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 145.601
CPU time (s): 145.008
CPU user time (s): 138.184
CPU system time (s): 6.82396
CPU usage (%): 99.5925
Max. virtual memory (cumulated for all children) (Kb): 812240

Verifier Data

ERROR: no interpretation found !