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-pilot.we.opb
MD5SUM9228fcb33929c7b5e80529359154089f
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 1840
Biggest coefficient in the objective function 111935488000000000
Number of bits for the biggest coefficient in the objective function 57
Sum of the numbers in the objective function 5990082122274938325
Number of bits of the sum of numbers in the objective function 63
Biggest number in a constraint 111935488000000000
Number of bits of the biggest number in a constraint 57
Biggest sum of numbers in a constraint 5990082122274938325
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 benchmark5.11922
Number of variables52626
Total number of constraints1016
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 constraints1016
Minimum length of a constraint7
Maximum length of a constraint1620

Trace number 10293

Launcher Data

LAUNCH ON wulflinc2 THE 2005-09-23 17:47:21 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9039 boxname=wulflinc2 idbench=835 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9228fcb33929c7b5e80529359154089f  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-pilot.we.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-pilot.we.opb
IDLAUNCH: 9039
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.261
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		: 451.261
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:        890804 kB
Buffers:         17176 kB
Cached:         106788 kB
SwapCached:          0 kB
Active:          50044 kB
Inactive:        76824 kB
HighTotal:      131008 kB
HighFree:        28112 kB
LowTotal:       903652 kB
LowFree:        862692 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11416 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:48:59 (client local time) WITH STATUS 1 IN 97.5722 SECONDS
stats: 9039 7 97.5722 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/10338/stat): 10338 (pb2sat) R 10337 10338 4070 0 -1 0 18 0 0 0 0 0 0 0 22 0 1 0 22122332 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10338/statm): 373 2 364 364 0 9 0
[pid=10338] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-pilot.we.opb

[startup+10.0015 s]
Raw data (loadavg): 0.92 0.94 0.96 2/55 10338
Raw data (/proc/10338/stat): 10338 (pb2sat) R 10337 10338 4070 0 -1 0 30559 0 0 0 932 64 0 0 25 0 1 0 22122332 98611200 19363 4294967295 134512640 135987407 3221224560 3221181708 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10338/statm): 24075 19363 364 364 0 23711 0
[pid=10338] vsize: 96300
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 96300

[startup+20.0022 s]
Raw data (loadavg): 0.94 0.95 0.96 2/55 10338
Raw data (/proc/10338/stat): 10338 (pb2sat) R 10337 10338 4070 0 -1 0 61814 0 0 0 1865 127 0 0 25 0 1 0 22122332 196182016 39091 4294967295 134512640 135987407 3221224560 3221181232 134892753 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10338/statm): 47896 39091 364 364 0 47532 0
[pid=10338] vsize: 191584
Current children cumulated CPU time (s) 19.92
Current children cumulated vsize (Kb) 191584

[startup+30.0029 s]
Raw data (loadavg): 0.94 0.95 0.96 2/55 10338
Raw data (/proc/10338/stat): 10338 (pb2sat) R 10337 10338 4070 0 -1 0 95316 0 0 0 2797 191 0 0 25 0 1 0 22122332 382005248 61534 4294967295 134512640 135987407 3221224560 3221181424 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10338/statm): 93263 61534 364 364 0 92899 0
[pid=10338] vsize: 373052
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 373052

[startup+40.0036 s]
Raw data (loadavg): 0.95 0.95 0.96 2/55 10338
Raw data (/proc/10338/stat): 10338 (pb2sat) R 10337 10338 4070 0 -1 0 123876 0 0 0 3733 253 0 0 25 0 1 0 22122332 390094848 77576 4294967295 134512640 135987407 3221224560 3221181024 134537552 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10338/statm): 95238 77576 364 364 0 94874 0
[pid=10338] vsize: 380952
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 380952

[startup+50.0043 s]
Raw data (loadavg): 0.96 0.95 0.96 2/55 10338
Raw data (/proc/10338/stat): 10338 (pb2sat) R 10337 10338 4070 0 -1 0 168658 0 0 0 4643 338 0 0 25 0 1 0 22122332 530812928 100724 4294967295 134512640 135987407 3221224560 3221182684 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10338/statm): 129593 100724 364 364 0 129229 0
[pid=10338] vsize: 518372
Current children cumulated CPU time (s) 49.81
Current children cumulated vsize (Kb) 518372

[startup+60.004 s]
Raw data (loadavg): 0.97 0.95 0.96 2/55 10338
Raw data (/proc/10338/stat): 10338 (pb2sat) R 10337 10338 4070 0 -1 0 188290 0 0 0 5603 376 0 0 25 0 1 0 22122332 559333376 120094 4294967295 134512640 135987407 3221224560 3221181676 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10338/statm): 136556 120094 364 364 0 136192 0
[pid=10338] vsize: 546224
Current children cumulated CPU time (s) 59.79
Current children cumulated vsize (Kb) 546224

[startup+70.0037 s]
Raw data (loadavg): 0.97 0.95 0.96 2/55 10338
Raw data (/proc/10338/stat): 10338 (pb2sat) R 10337 10338 4070 0 -1 0 229469 0 0 0 6513 464 0 0 25 0 1 0 22122332 684462080 136480 4294967295 134512640 135987407 3221224560 3221183024 134640122 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10338/statm): 167105 136480 364 364 0 166741 0
[pid=10338] vsize: 668420
Current children cumulated CPU time (s) 69.77
Current children cumulated vsize (Kb) 668420

[startup+80.0044 s]
Raw data (loadavg): 0.97 0.95 0.96 2/55 10338
Raw data (/proc/10338/stat): 10338 (pb2sat) R 10337 10338 4070 0 -1 0 245925 0 0 0 7480 495 0 0 25 0 1 0 22122332 741941248 152714 4294967295 134512640 135987407 3221224560 3221183392 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10338/statm): 181138 152714 364 364 0 180774 0
[pid=10338] vsize: 724552
Current children cumulated CPU time (s) 79.75
Current children cumulated vsize (Kb) 724552

[startup+90.0041 s]
Raw data (loadavg): 0.98 0.95 0.96 2/55 10338
Raw data (/proc/10338/stat): 10338 (pb2sat) R 10337 10338 4070 0 -1 0 265780 0 0 0 8437 537 0 0 25 0 1 0 22122332 772517888 171990 4294967295 134512640 135987407 3221224560 3221183356 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10338/statm): 188603 171990 364 364 0 188239 0
[pid=10338] vsize: 754412
Current children cumulated CPU time (s) 89.74
Current children cumulated vsize (Kb) 754412
One traced child (pid=10338) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 97.8379
CPU time (s): 97.5722
CPU user time (s): 91.837
CPU system time (s): 5.73513
CPU usage (%): 99.7284
Max. virtual memory (cumulated for all children) (Kb): 754412

Verifier Data

ERROR: no interpretation found !