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-perold.opb
MD5SUM53521b0b5efe71aeef1c4f32f515a96c
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 140
Biggest coefficient in the objective function 524288
Number of bits for the biggest coefficient in the objective function 20
Sum of the numbers in the objective function 7340025
Number of bits of the sum of numbers in the objective function 23
Biggest number in a constraint 12380866561966080
Number of bits of the biggest number in a constraint 54
Biggest sum of numbers in a constraint 82341011714699100
Number of bits of the biggest sum of numbers57
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.24635
Number of variables25038
Total number of constraints891
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 constraints891
Minimum length of a constraint7
Maximum length of a constraint672

Trace number 10287

Launcher Data

LAUNCH ON wulflinc1 THE 2005-09-23 17:46:45 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9034 boxname=wulflinc1 idbench=830 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  53521b0b5efe71aeef1c4f32f515a96c  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-perold.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-perold.opb
IDLAUNCH: 9034
/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:        880200 kB
Buffers:         13456 kB
Cached:         123156 kB
SwapCached:          0 kB
Active:          79184 kB
Inactive:        60324 kB
HighTotal:      131008 kB
HighFree:        11452 kB
LowTotal:       903652 kB
LowFree:        868748 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6988 kB
Slab:             9348 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:48:23 (client local time) WITH STATUS 1 IN 97.4832 SECONDS
stats: 9034 7 97.4832 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/10475/stat): 10475 (pb2sat) R 10474 10475 4704 0 -1 0 18 0 0 0 0 0 0 0 20 0 1 0 22118563 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10475/statm): 373 2 364 364 0 9 0
[pid=10475] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-perold.opb

[startup+10.0025 s]
Raw data (loadavg): 0.92 0.95 0.92 2/55 10475
Raw data (/proc/10475/stat): 10475 (pb2sat) R 10474 10475 4704 0 -1 0 31511 0 0 0 930 66 0 0 25 0 1 0 22118563 99790848 20292 4294967295 134512640 135987407 3221224560 3221153856 134558761 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10475/statm): 24363 20292 364 364 0 23999 0
[pid=10475] vsize: 97452
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 97452

[startup+20.0033 s]
Raw data (loadavg): 0.93 0.95 0.92 2/55 10475
Raw data (/proc/10475/stat): 10475 (pb2sat) R 10474 10475 4704 0 -1 0 62979 0 0 0 1861 132 0 0 25 0 1 0 22118563 197443584 40166 4294967295 134512640 135987407 3221224560 3221154480 134537407 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10475/statm): 48204 40166 364 364 0 47840 0
[pid=10475] vsize: 192816
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 192816

[startup+30.0031 s]
Raw data (loadavg): 0.94 0.95 0.92 2/55 10475
Raw data (/proc/10475/stat): 10475 (pb2sat) R 10474 10475 4704 0 -1 0 106369 0 0 0 2772 216 0 0 25 0 1 0 22118563 331132928 60650 4294967295 134512640 135987407 3221224560 3221153392 134877880 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10475/statm): 80843 60650 364 364 0 80479 0
[pid=10475] vsize: 323372
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 323372

[startup+40.0039 s]
Raw data (loadavg): 0.95 0.95 0.92 2/55 10475
Raw data (/proc/10475/stat): 10475 (pb2sat) R 10474 10475 4704 0 -1 0 124820 0 0 0 3737 249 0 0 25 0 1 0 22118563 391245824 78855 4294967295 134512640 135987407 3221224560 3221153812 135477853 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10475/statm): 95519 78855 364 364 0 95155 0
[pid=10475] vsize: 382076
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 382076

[startup+50.0047 s]
Raw data (loadavg): 0.96 0.95 0.92 2/55 10475
Raw data (/proc/10475/stat): 10475 (pb2sat) R 10474 10475 4704 0 -1 0 169784 0 0 0 4642 340 0 0 25 0 1 0 22118563 532955136 102470 4294967295 134512640 135987407 3221224560 3221153788 134637031 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10475/statm): 130116 102470 364 364 0 129752 0
[pid=10475] vsize: 520464
Current children cumulated CPU time (s) 49.82
Current children cumulated vsize (Kb) 520464

[startup+60.0055 s]
Raw data (loadavg): 0.96 0.95 0.92 2/55 10475
Raw data (/proc/10475/stat): 10475 (pb2sat) R 10474 10475 4704 0 -1 0 207647 0 0 0 5563 417 0 0 25 0 1 0 22118563 759291904 140100 4294967295 134512640 135987407 3221224560 3221154880 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10475/statm): 185374 140100 364 364 0 185010 0
[pid=10475] vsize: 741496
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 741496

[startup+70.0063 s]
Raw data (loadavg): 0.97 0.95 0.92 2/55 10475
Raw data (/proc/10475/stat): 10475 (pb2sat) R 10474 10475 4704 0 -1 0 230609 0 0 0 6511 466 0 0 25 0 1 0 22118563 685387776 138238 4294967295 134512640 135987407 3221224560 3221155344 134931244 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10475/statm): 167331 138238 364 364 0 166967 0
[pid=10475] vsize: 669324
Current children cumulated CPU time (s) 69.77
Current children cumulated vsize (Kb) 669324

[startup+80.0071 s]
Raw data (loadavg): 0.97 0.95 0.92 2/55 10475
Raw data (/proc/10475/stat): 10475 (pb2sat) R 10474 10475 4704 0 -1 0 246938 0 0 0 7479 496 0 0 25 0 1 0 22118563 742326272 154351 4294967295 134512640 135987407 3221224560 3221154156 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10475/statm): 181232 154351 364 364 0 180868 0
[pid=10475] vsize: 724928
Current children cumulated CPU time (s) 79.75
Current children cumulated vsize (Kb) 724928

[startup+90.0079 s]
Raw data (loadavg): 0.98 0.95 0.92 2/55 10475
Raw data (/proc/10475/stat): 10475 (pb2sat) R 10474 10475 4704 0 -1 0 267497 0 0 0 8440 533 0 0 25 0 1 0 22118563 775290880 174074 4294967295 134512640 135987407 3221224560 3221154156 134669201 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10475/statm): 189280 174074 364 364 0 188916 0
[pid=10475] vsize: 757120
Current children cumulated CPU time (s) 89.73
Current children cumulated vsize (Kb) 757120
One traced child (pid=10475) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 97.7591
CPU time (s): 97.4832
CPU user time (s): 91.779
CPU system time (s): 5.70413
CPU usage (%): 99.7178
Max. virtual memory (cumulated for all children) (Kb): 757120

Verifier Data

ERROR: no interpretation found !