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-pilotnov.opb
MD5SUM66be30d4f5bb7b279b4114fb6f1ff9f2
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 1890
Biggest coefficient in the objective function 477815111680000
Number of bits for the biggest coefficient in the objective function 49
Sum of the numbers in the objective function 19701657066014154
Number of bits of the sum of numbers in the objective function 55
Biggest number in a constraint 3141307404910592000000
Number of bits of the biggest number in a constraint 72
Biggest sum of numbers in a constraint 12713246235773393436672
Number of bits of the biggest sum of numbers74
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark8.71267
Number of variables54587
Total number of constraints1287
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 constraints1287
Minimum length of a constraint10
Maximum length of a constraint4520

Trace number 9903

Launcher Data

LAUNCH ON wulflinc6 THE 2005-09-23 16:08:36 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8652 boxname=wulflinc6 idbench=448 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  66be30d4f5bb7b279b4114fb6f1ff9f2  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-pilotnov.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-pilotnov.opb
IDLAUNCH: 8652
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.158
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		: 451.158
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:        921384 kB
Buffers:         12688 kB
Cached:          83056 kB
SwapCached:          0 kB
Active:          48320 kB
Inactive:        50300 kB
HighTotal:      131008 kB
HighFree:        44492 kB
LowTotal:       903652 kB
LowFree:        876892 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             9028 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:10:24 (client local time) WITH STATUS 1 IN 107.088 SECONDS
stats: 8652 7 107.088 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/7815/stat): 7815 (pb2sat) R 7814 7815 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21525867 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/7815/statm): 373 2 364 364 0 9 0
[pid=7815] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-pilotnov.opb

[startup+10.0014 s]
Raw data (loadavg): 0.87 0.94 0.97 2/55 7815
Raw data (/proc/7815/stat): 7815 (pb2sat) R 7814 7815 4060 0 -1 0 30864 0 0 0 932 64 0 0 25 0 1 0 21525867 98258944 19718 4294967295 134512640 135987407 3221224560 3221079460 135477875 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7815/statm): 23989 19718 364 364 0 23625 0
[pid=7815] vsize: 95956
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 95956

[startup+20.0032 s]
Raw data (loadavg): 0.89 0.94 0.97 2/55 7815
Raw data (/proc/7815/stat): 7815 (pb2sat) R 7814 7815 4060 0 -1 0 62035 0 0 0 1868 127 0 0 25 0 1 0 21525867 195084288 39663 4294967295 134512640 135987407 3221224560 3221076752 134878034 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7815/statm): 47628 39663 364 364 0 47264 0
[pid=7815] vsize: 190512
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 190512

[startup+30.0029 s]
Raw data (loadavg): 0.91 0.94 0.97 2/55 7815
Raw data (/proc/7815/stat): 7815 (pb2sat) R 7814 7815 4060 0 -1 0 105210 0 0 0 2780 211 0 0 25 0 1 0 21525867 329109504 60633 4294967295 134512640 135987407 3221224560 3221080204 134669203 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7815/statm): 80349 60633 364 364 0 79985 0
[pid=7815] vsize: 321396
Current children cumulated CPU time (s) 29.91
Current children cumulated vsize (Kb) 321396

[startup+40.0027 s]
Raw data (loadavg): 0.92 0.94 0.97 2/55 7815
Raw data (/proc/7815/stat): 7815 (pb2sat) R 7814 7815 4060 0 -1 0 123580 0 0 0 3742 246 0 0 25 0 1 0 21525867 388087808 78775 4294967295 134512640 135987407 3221224560 3221075096 135480532 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7815/statm): 94748 78775 364 364 0 94384 0
[pid=7815] vsize: 378992
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 378992

[startup+50.0034 s]
Raw data (loadavg): 0.93 0.95 0.97 2/55 7815
Raw data (/proc/7815/stat): 7815 (pb2sat) R 7814 7815 4060 0 -1 0 168379 0 0 0 4654 330 0 0 25 0 1 0 21525867 600793088 122387 4294967295 134512640 135987407 3221224560 3221078684 135499903 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7815/statm): 146678 122387 364 364 0 146314 0
[pid=7815] vsize: 586712
Current children cumulated CPU time (s) 49.84
Current children cumulated vsize (Kb) 586712

[startup+60.0032 s]
Raw data (loadavg): 0.94 0.95 0.97 2/55 7815
Raw data (/proc/7815/stat): 7815 (pb2sat) R 7814 7815 4060 0 -1 0 208792 0 0 0 5562 421 0 0 25 0 1 0 21525867 653836288 119592 4294967295 134512640 135987407 3221224560 3221077304 134892451 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7815/statm): 159628 119592 364 364 0 159264 0
[pid=7815] vsize: 638512
Current children cumulated CPU time (s) 59.83
Current children cumulated vsize (Kb) 638512

[startup+70.0039 s]
Raw data (loadavg): 0.95 0.95 0.97 2/55 7815
Raw data (/proc/7815/stat): 7815 (pb2sat) R 7814 7815 4060 0 -1 0 225147 0 0 0 6528 452 0 0 25 0 1 0 21525867 709828608 135744 4294967295 134512640 135987407 3221224560 3221080472 134930929 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7815/statm): 173298 135744 364 364 0 172934 0
[pid=7815] vsize: 693192
Current children cumulated CPU time (s) 69.8
Current children cumulated vsize (Kb) 693192

[startup+80.0047 s]
Raw data (loadavg): 0.96 0.95 0.97 2/55 7815
Raw data (/proc/7815/stat): 7815 (pb2sat) R 7814 7815 4060 0 -1 0 244324 0 0 0 7494 485 0 0 25 0 1 0 21525867 736509952 154686 4294967295 134512640 135987407 3221224560 3221077172 135477853 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7815/statm): 179812 154686 364 364 0 179448 0
[pid=7815] vsize: 719248
Current children cumulated CPU time (s) 79.79
Current children cumulated vsize (Kb) 719248

[startup+90.0044 s]
Raw data (loadavg): 0.96 0.95 0.97 2/55 7815
Raw data (/proc/7815/stat): 7815 (pb2sat) R 7814 7815 4060 0 -1 0 263382 0 0 0 8455 523 0 0 25 0 1 0 21525867 763719680 173512 4294967295 134512640 135987407 3221224560 3221082112 134877915 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7815/statm): 186455 173512 364 364 0 186091 0
[pid=7815] vsize: 745820
Current children cumulated CPU time (s) 89.78
Current children cumulated vsize (Kb) 745820

[startup+100.005 s]
Raw data (loadavg): 0.97 0.95 0.97 2/55 7815
Raw data (/proc/7815/stat): 7815 (pb2sat) R 7814 7815 4060 0 -1 0 277643 0 0 0 9427 549 0 0 25 0 1 0 21525867 834736128 187600 4294967295 134512640 135987407 3221224560 3221223056 134636933 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7815/statm): 203793 187600 364 364 0 203429 0
[pid=7815] vsize: 815172
Current children cumulated CPU time (s) 99.76
Current children cumulated vsize (Kb) 815172
One traced child (pid=7815) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 107.326
CPU time (s): 107.088
CPU user time (s): 101.209
CPU system time (s): 5.87911
CPU usage (%): 99.7781
Max. virtual memory (cumulated for all children) (Kb): 815172

Verifier Data

ERROR: no interpretation found !