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-lotfi.opb
MD5SUM69367ad5ee917e4a74e95e8f089c09d8
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 160
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 8388600
Number of bits of the sum of numbers in the objective function 23
Biggest number in a constraint 5242880000000000
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 39992649862466400
Number of bits of the biggest sum of numbers56
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables6160
Total number of constraints153
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 constraints153
Minimum length of a constraint20
Maximum length of a constraint2660

Trace number 10284

Launcher Data

LAUNCH ON wulflinc32 THE 2005-09-23 17:46:10 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9029 boxname=wulflinc32 idbench=825 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  69367ad5ee917e4a74e95e8f089c09d8  /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-13-7-lotfi.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-13-7-lotfi.opb
IDLAUNCH: 9029
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.145
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		: 451.145
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:      1034724 kB
MemFree:        921556 kB
Buffers:         15264 kB
Cached:          78236 kB
SwapCached:          0 kB
Active:          42392 kB
Inactive:        53980 kB
HighTotal:      131072 kB
HighFree:        48448 kB
LowTotal:       903652 kB
LowFree:        873108 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6988 kB
Slab:            11272 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:47:55 (client local time) WITH STATUS 0 IN 104.342 SECONDS
stats: 9029 7 104.342 0

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc
*** glibc detected *** pb2sat: free(): invalid pointer: 0x167d4858 ***
======= Backtrace: =========
[0x8133e0b]
[0x81342a2]
[0x810551d]
[0x808d2fd]
[0x8085a91]
[0x8118cb6]
[0x804ae2b]
[0x8110e79]
[0x8048141]
======= Memory map: ========
08048000-081b1000 r-xp 00000000 00:14 3276939    /oldhome/oroussel/solvers/pb2sat
081b1000-081b4000 rw-p 00168000 00:14 3276939    /oldhome/oroussel/solvers/pb2sat
081b4000-1b276000 rw-p 081b4000 00:00 0 
40000000-40001000 rw-p 40000000 00:00 0 
4e389000-4eb8a000 rw-p 4e389000 00:00 0 
5278a000-5b78b000 rw-p 400fb000 00:00 0 
5c78c000-70f8e000 rw-p 5c78c000 00:00 0 
93000000-93021000 rw-p 93000000 00:00 0 
93021000-93100000 ---p 93021000 00:00 0 
bff24000-c0000000 rw-p bff24000 00:00 0 
ffffe000-fffff000 ---p 00000000 00:00 0

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/8701/stat): 8701 (pb2sat) R 8700 8701 4005 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22054442 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8701/statm): 373 2 364 364 0 9 0
[pid=8701] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-13-7-lotfi.opb

[startup+10.0018 s]
Raw data (loadavg): 0.97 1.01 0.97 2/55 8701
Raw data (/proc/8701/stat): 8701 (pb2sat) R 8700 8701 4005 0 -1 0 30886 0 0 0 928 68 0 0 25 0 1 0 22054442 95289344 19736 4294967295 134512640 135987407 3221224560 3220351280 134856461 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8701/statm): 23264 19736 364 364 0 22900 0
[pid=8701] vsize: 93056
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 93056

[startup+20.0025 s]
Raw data (loadavg): 0.97 1.01 0.97 2/55 8701
Raw data (/proc/8701/stat): 8701 (pb2sat) R 8700 8701 4005 0 -1 0 62135 0 0 0 1858 135 0 0 25 0 1 0 22054442 191655936 39769 4294967295 134512640 135987407 3221224560 3220375580 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8701/statm): 46791 39769 364 364 0 46427 0
[pid=8701] vsize: 187164
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 187164

[startup+30.0033 s]
Raw data (loadavg): 0.98 1.01 0.97 2/55 8701
Raw data (/proc/8701/stat): 8701 (pb2sat) R 8700 8701 4005 0 -1 0 104993 0 0 0 2764 224 0 0 25 0 1 0 22054442 323936256 60430 4294967295 134512640 135987407 3221224560 3220354252 135499903 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8701/statm): 79086 60430 364 364 0 78722 0
[pid=8701] vsize: 316344
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 316344

[startup+40.0041 s]
Raw data (loadavg): 0.98 1.01 0.97 2/55 8701
Raw data (/proc/8701/stat): 8701 (pb2sat) R 8700 8701 4005 0 -1 0 123581 0 0 0 3723 263 0 0 25 0 1 0 22054442 382091264 78797 4294967295 134512640 135987407 3221224560 3220454960 134558674 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8701/statm): 93284 78797 364 364 0 92920 0
[pid=8701] vsize: 373136
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 373136

[startup+50.0048 s]
Raw data (loadavg): 0.98 1.01 0.97 2/55 8701
Raw data (/proc/8701/stat): 8701 (pb2sat) R 8700 8701 4005 0 -1 0 157620 0 0 0 4652 331 0 0 25 0 1 0 22054442 574984192 112053 4294967295 134512640 135987407 3221224560 3220415756 135500012 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8701/statm): 140377 112053 364 364 0 140013 0
[pid=8701] vsize: 561508
Current children cumulated CPU time (s) 49.83
Current children cumulated vsize (Kb) 561508

[startup+60.0046 s]
Raw data (loadavg): 0.98 1.00 0.97 2/55 8701
Raw data (/proc/8701/stat): 8701 (pb2sat) R 8700 8701 4005 0 -1 0 208773 0 0 0 5540 440 0 0 25 0 1 0 22054442 645976064 119605 4294967295 134512640 135987407 3221224560 3220439756 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8701/statm): 157709 119605 364 364 0 157345 0
[pid=8701] vsize: 630836
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 630836

[startup+70.0054 s]
Raw data (loadavg): 0.99 1.00 0.97 2/55 8701
Raw data (/proc/8701/stat): 8701 (pb2sat) R 8700 8701 4005 0 -1 0 225476 0 0 0 6501 478 0 0 25 0 1 0 22054442 701427712 136109 4294967295 134512640 135987407 3221224560 3220387712 134537571 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8701/statm): 171247 136109 364 364 0 170883 0
[pid=8701] vsize: 684988
Current children cumulated CPU time (s) 69.79
Current children cumulated vsize (Kb) 684988

[startup+80.0062 s]
Raw data (loadavg): 0.99 1.00 0.97 2/55 8701
Raw data (/proc/8701/stat): 8701 (pb2sat) R 8700 8701 4005 0 -1 0 244666 0 0 0 7462 515 0 0 25 0 1 0 22054442 726568960 155070 4294967295 134512640 135987407 3221224560 3220380284 134637029 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8701/statm): 177385 155070 364 364 0 177021 0
[pid=8701] vsize: 709540
Current children cumulated CPU time (s) 79.77
Current children cumulated vsize (Kb) 709540

[startup+90.0069 s]
Raw data (loadavg): 0.99 1.00 0.97 2/55 8701
Raw data (/proc/8701/stat): 8701 (pb2sat) R 8700 8701 4005 0 -1 0 260295 0 0 0 8427 549 0 0 25 0 1 0 22054442 797175808 170511 4294967295 134512640 135987407 3221224560 3220508144 134877708 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8701/statm): 194623 170511 364 364 0 194259 0
[pid=8701] vsize: 778492
Current children cumulated CPU time (s) 89.76
Current children cumulated vsize (Kb) 778492

[startup+100.008 s]
Raw data (loadavg): 0.99 1.00 0.97 2/55 8701
Raw data (/proc/8701/stat): 8701 (pb2sat) R 8700 8701 4005 0 -1 0 279020 0 0 0 9385 588 0 0 25 0 1 0 22054442 821641216 189011 4294967295 134512640 135987407 3221224560 3220468352 134637912 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8701/statm): 200596 189011 364 364 0 200232 0
[pid=8701] vsize: 802384
Current children cumulated CPU time (s) 99.73
Current children cumulated vsize (Kb) 802384
open syscall for file /dev/tty
open syscall for file /proc/self/maps
One traced child (pid=8701) ended because it received signal 6 (SIGABRT)
All traced children have exited ! Game is over.

Child ended because it received signal 6 (SIGABRT)
Real time (s): 104.617
CPU time (s): 104.342
CPU user time (s): 97.9851
CPU system time (s): 6.35703
CPU usage (%): 99.7375
Max. virtual memory (cumulated for all children) (Kb): 802384

Verifier Data

ERROR: no interpretation found !