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-stocfor2.opb
MD5SUM0dc0747c5ead22f2090cd90d5f7e4e43
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 21180
Biggest coefficient in the objective function 1811939328000000
Number of bits for the biggest coefficient in the objective function 51
Sum of the numbers in the objective function 384124076253097125
Number of bits of the sum of numbers in the objective function 59
Biggest number in a constraint 1811939328000000
Number of bits of the biggest number in a constraint 51
Biggest sum of numbers in a constraint 384124076253097125
Number of bits of the biggest sum of numbers59
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark15.5966
Number of variables40620
Total number of constraints2157
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 constraints2157
Minimum length of a constraint20
Maximum length of a constraint300

Trace number 10346

Launcher Data

LAUNCH ON wulflinc1 THE 2005-09-23 17:52:22 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9083 boxname=wulflinc1 idbench=879 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0dc0747c5ead22f2090cd90d5f7e4e43  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-stocfor2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-stocfor2.opb
IDLAUNCH: 9083
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.228
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		: 451.228
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:        877624 kB
Buffers:         13552 kB
Cached:         125576 kB
SwapCached:          0 kB
Active:          80980 kB
Inactive:        61072 kB
HighTotal:      131008 kB
HighFree:         8988 kB
LowTotal:       903652 kB
LowFree:        868636 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6988 kB
Slab:             9384 kB
Committed_AS:    63628 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:54:16 (client local time) WITH STATUS 1 IN 113.402 SECONDS
stats: 9083 7 113.402 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/10808/stat): 10808 (pb2sat) R 10807 10808 4704 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22152303 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10808/statm): 373 2 364 364 0 9 0
[pid=10808] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-stocfor2.opb

[startup+10.0023 s]
Raw data (loadavg): 0.92 0.95 0.91 2/55 10808
Raw data (/proc/10808/stat): 10808 (pb2sat) R 10807 10808 4704 0 -1 0 9090 0 0 0 976 21 0 0 25 0 1 0 22152303 34791424 5802 4294967295 134512640 135987407 3221224560 3221217712 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10808/statm): 8494 5802 364 364 0 8130 0
[pid=10808] vsize: 33976
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 33976

[startup+20.0031 s]
Raw data (loadavg): 0.94 0.95 0.91 2/55 10808
Raw data (/proc/10808/stat): 10808 (pb2sat) R 10807 10808 4704 0 -1 0 43163 0 0 0 1905 88 0 0 25 0 1 0 22152303 134008832 26983 4294967295 134512640 135987407 3221224560 3221137152 134865976 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10808/statm): 32717 26983 364 364 0 32353 0
[pid=10808] vsize: 130868
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 130868

[startup+30.0039 s]
Raw data (loadavg): 0.94 0.95 0.91 2/55 10808
Raw data (/proc/10808/stat): 10808 (pb2sat) R 10807 10808 4704 0 -1 0 71846 0 0 0 2844 146 0 0 25 0 1 0 22152303 278622208 49163 4294967295 134512640 135987407 3221224560 3221126768 134856467 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10808/statm): 68023 49163 364 364 0 67659 0
[pid=10808] vsize: 272092
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 272092

[startup+40.0037 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 10808
Raw data (/proc/10808/stat): 10808 (pb2sat) R 10807 10808 4704 0 -1 0 110556 0 0 0 3762 224 0 0 25 0 1 0 22152303 366661632 65809 4294967295 134512640 135987407 3221224560 3221151280 134556298 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10808/statm): 89517 65809 364 364 0 89153 0
[pid=10808] vsize: 358068
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 358068

[startup+50.0045 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 10808
Raw data (/proc/10808/stat): 10808 (pb2sat) R 10807 10808 4704 0 -1 0 130516 0 0 0 4718 266 0 0 25 0 1 0 22152303 393154560 85525 4294967295 134512640 135987407 3221224560 3221124716 135499910 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10808/statm): 95985 85525 364 364 0 95621 0
[pid=10808] vsize: 383940
Current children cumulated CPU time (s) 49.84
Current children cumulated vsize (Kb) 383940

[startup+60.0043 s]
Raw data (loadavg): 0.97 0.95 0.91 1/55 10808
Raw data (/proc/10808/stat): 10808 (pb2sat) T 10807 10808 4704 0 -1 0 175060 0 0 0 5625 353 0 0 25 0 1 0 22152303 536145920 110456 4294967295 134512640 135987407 3221224560 3221136940 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/10808/statm): 130895 110456 364 364 0 130531 0
[pid=10808] vsize: 523580
Current children cumulated CPU time (s) 59.78
Current children cumulated vsize (Kb) 523580

[startup+70.004 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 10808
Raw data (/proc/10808/stat): 10808 (pb2sat) R 10807 10808 4704 0 -1 0 214367 0 0 0 6536 442 0 0 25 0 1 0 22152303 689827840 125006 4294967295 134512640 135987407 3221224560 3221134448 134877708 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10808/statm): 168415 125006 364 364 0 168051 0
[pid=10808] vsize: 673660
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 673660

[startup+80.0048 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 10808
Raw data (/proc/10808/stat): 10808 (pb2sat) R 10807 10808 4704 0 -1 0 232341 0 0 0 7496 480 0 0 25 0 1 0 22152303 713482240 142760 4294967295 134512640 135987407 3221224560 3221127232 134635350 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10808/statm): 174190 142760 364 364 0 173826 0
[pid=10808] vsize: 696760
Current children cumulated CPU time (s) 79.76
Current children cumulated vsize (Kb) 696760

[startup+90.0046 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 10808
Raw data (/proc/10808/stat): 10808 (pb2sat) R 10807 10808 4704 0 -1 0 251129 0 0 0 8453 520 0 0 25 0 1 0 22152303 738217984 161318 4294967295 134512640 135987407 3221224560 3221131948 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10808/statm): 180229 161318 364 364 0 179865 0
[pid=10808] vsize: 720916
Current children cumulated CPU time (s) 89.73
Current children cumulated vsize (Kb) 720916

[startup+100.005 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 10808
Raw data (/proc/10808/stat): 10808 (pb2sat) R 10807 10808 4704 0 -1 0 265915 0 0 0 9425 548 0 0 25 0 1 0 22152303 808013824 175923 4294967295 134512640 135987407 3221224560 3221144096 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10808/statm): 197269 175923 364 364 0 196905 0
[pid=10808] vsize: 789076
Current children cumulated CPU time (s) 99.73
Current children cumulated vsize (Kb) 789076

[startup+110.005 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 10808
Raw data (/proc/10808/stat): 10808 (pb2sat) R 10807 10808 4704 0 -1 0 279013 0 0 0 10382 589 0 0 25 0 1 0 22152303 467877888 113626 4294967295 134512640 135987407 3221224560 3221223224 135477173 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10808/statm): 114228 113626 364 364 0 113864 0
[pid=10808] vsize: 456912
Current children cumulated CPU time (s) 109.71
Current children cumulated vsize (Kb) 456912
One traced child (pid=10808) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 113.686
CPU time (s): 113.402
CPU user time (s): 107.265
CPU system time (s): 6.13707
CPU usage (%): 99.7496
Max. virtual memory (cumulated for all children) (Kb): 789076

Verifier Data

ERROR: no interpretation found !