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-tuff.opb
MD5SUM1a92e09c7ec9849a6357a8d28097331d
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 90
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 3221225469
Number of bits of the sum of numbers in the objective function 32
Biggest number in a constraint 6170044790734848
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 1104744513968841438
Number of bits of the biggest sum of numbers60
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables17153
Total number of constraints320
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 constraints320
Minimum length of a constraint11
Maximum length of a constraint3360

Trace number 9932

Launcher Data

LAUNCH ON wulflinc19 THE 2005-09-23 16:13:15 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8686 boxname=wulflinc19 idbench=482 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1a92e09c7ec9849a6357a8d28097331d  /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-tuff.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-tuff.opb
IDLAUNCH: 8686
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
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		: 451.169
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:        920616 kB
Buffers:         15412 kB
Cached:          78564 kB
SwapCached:          0 kB
Active:          49532 kB
Inactive:        47352 kB
HighTotal:      131008 kB
HighFree:        48916 kB
LowTotal:       903652 kB
LowFree:        871700 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11536 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:15:02 (client local time) WITH STATUS 1 IN 106.479 SECONDS
stats: 8686 7 106.479 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/8130/stat): 8130 (pb2sat) R 8129 8130 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21537334 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8130/statm): 373 2 364 364 0 9 0
[pid=8130] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-tuff.opb

[startup+10.0025 s]
Raw data (loadavg): 0.92 0.93 0.92 2/55 8130
Raw data (/proc/8130/stat): 8130 (pb2sat) R 8129 8130 4060 0 -1 0 31057 0 0 0 932 65 0 0 25 0 1 0 21537334 96387072 19911 4294967295 134512640 135987407 3221224560 3221178508 135499903 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8130/statm): 23532 19911 364 364 0 23168 0
[pid=8130] vsize: 94128
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 94128

[startup+20.0033 s]
Raw data (loadavg): 0.93 0.94 0.92 2/55 8130
Raw data (/proc/8130/stat): 8130 (pb2sat) R 8129 8130 4060 0 -1 0 57549 0 0 0 1876 120 0 0 25 0 1 0 21537334 173158400 35177 4294967295 134512640 135987407 3221224560 3221173856 134878526 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8130/statm): 42275 35177 364 364 0 41911 0
[pid=8130] vsize: 169100
Current children cumulated CPU time (s) 19.96
Current children cumulated vsize (Kb) 169100

[startup+30.0041 s]
Raw data (loadavg): 0.94 0.94 0.92 2/55 8130
Raw data (/proc/8130/stat): 8130 (pb2sat) R 8129 8130 4060 0 -1 0 97913 0 0 0 2793 200 0 0 25 0 1 0 21537334 294637568 53329 4294967295 134512640 135987407 3221224560 3221175344 134887932 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8130/statm): 71933 53329 364 364 0 71569 0
[pid=8130] vsize: 287732
Current children cumulated CPU time (s) 29.93
Current children cumulated vsize (Kb) 287732

[startup+40.0039 s]
Raw data (loadavg): 0.95 0.94 0.92 2/55 8130
Raw data (/proc/8130/stat): 8130 (pb2sat) R 8129 8130 4060 0 -1 0 115977 0 0 0 3755 237 0 0 25 0 1 0 21537334 353357824 71172 4294967295 134512640 135987407 3221224560 3221173968 134636927 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8130/statm): 86269 71172 364 364 0 85905 0
[pid=8130] vsize: 345076
Current children cumulated CPU time (s) 39.92
Current children cumulated vsize (Kb) 345076

[startup+50.0037 s]
Raw data (loadavg): 0.96 0.94 0.92 2/55 8130
Raw data (/proc/8130/stat): 8130 (pb2sat) R 8129 8130 4060 0 -1 0 158680 0 0 0 4675 312 0 0 25 0 1 0 21537334 562274304 112760 4294967295 134512640 135987407 3221224560 3221176496 134856473 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8130/statm): 137274 112760 364 364 0 136910 0
[pid=8130] vsize: 549096
Current children cumulated CPU time (s) 49.87
Current children cumulated vsize (Kb) 549096

[startup+60.0045 s]
Raw data (loadavg): 0.96 0.94 0.92 2/55 8130
Raw data (/proc/8130/stat): 8130 (pb2sat) R 8129 8130 4060 0 -1 0 200953 0 0 0 5580 405 0 0 25 0 1 0 21537334 618672128 111759 4294967295 134512640 135987407 3221224560 3221183836 135499903 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8130/statm): 151043 111759 364 364 0 150679 0
[pid=8130] vsize: 604172
Current children cumulated CPU time (s) 59.85
Current children cumulated vsize (Kb) 604172

[startup+70.0053 s]
Raw data (loadavg): 0.97 0.94 0.92 2/55 8130
Raw data (/proc/8130/stat): 8130 (pb2sat) R 8129 8130 4060 0 -1 0 217443 0 0 0 6547 436 0 0 25 0 1 0 21537334 675479552 128051 4294967295 134512640 135987407 3221224560 3221180336 134537562 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8130/statm): 164912 128051 364 364 0 164548 0
[pid=8130] vsize: 659648
Current children cumulated CPU time (s) 69.83
Current children cumulated vsize (Kb) 659648

[startup+80.0061 s]
Raw data (loadavg): 0.97 0.94 0.92 2/55 8130
Raw data (/proc/8130/stat): 8130 (pb2sat) R 8129 8130 4060 0 -1 0 236585 0 0 0 7510 470 0 0 25 0 1 0 21537334 701845504 146959 4294967295 134512640 135987407 3221224560 3221184944 134878514 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8130/statm): 171349 146959 364 364 0 170985 0
[pid=8130] vsize: 685396
Current children cumulated CPU time (s) 79.8
Current children cumulated vsize (Kb) 685396

[startup+90.0059 s]
Raw data (loadavg): 0.98 0.95 0.92 2/55 8130
Raw data (/proc/8130/stat): 8130 (pb2sat) R 8129 8130 4060 0 -1 0 255602 0 0 0 8466 513 0 0 25 0 1 0 21537334 727404544 165742 4294967295 134512640 135987407 3221224560 3221187056 134537458 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8130/statm): 177589 165742 364 364 0 177225 0
[pid=8130] vsize: 710356
Current children cumulated CPU time (s) 89.79
Current children cumulated vsize (Kb) 710356

[startup+100.006 s]
Raw data (loadavg): 0.98 0.95 0.92 2/55 8130
Raw data (/proc/8130/stat): 8130 (pb2sat) R 8129 8130 4060 0 -1 0 270492 0 0 0 9434 543 0 0 25 0 1 0 21537334 798998528 180449 4294967295 134512640 135987407 3221224560 3221222660 135479922 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8130/statm): 195068 180449 364 364 0 194704 0
[pid=8130] vsize: 780272
Current children cumulated CPU time (s) 99.77
Current children cumulated vsize (Kb) 780272
One traced child (pid=8130) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 106.709
CPU time (s): 106.479
CPU user time (s): 100.671
CPU system time (s): 5.80812
CPU usage (%): 99.7839
Max. virtual memory (cumulated for all children) (Kb): 780272

Verifier Data

ERROR: no interpretation found !