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/plato.asu.edu/pub/unibo/normalized-mps-v2-20-10-blp-ic97.opb
MD5SUM827023c27ed4657a4077da2b27355df8
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 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 83886080000000
Number of bits of the biggest number in a constraint 47
Biggest sum of numbers in a constraint 508832629179091
Number of bits of the biggest sum of numbers49
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables11503
Total number of constraints10724
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)10588
Number of constraints which are nor clauses,nor cardinality constraints136
Minimum length of a constraint1
Maximum length of a constraint9784

Trace number 10196

Launcher Data

LAUNCH ON wulflinc10 THE 2005-09-23 17:35:31 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8956 boxname=wulflinc10 idbench=752 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  827023c27ed4657a4077da2b27355df8  /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-blp-ic97.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-blp-ic97.opb
IDLAUNCH: 8956
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.193
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		: 451.193
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:        929516 kB
Buffers:         11924 kB
Cached:          75728 kB
SwapCached:          0 kB
Active:          52572 kB
Inactive:        37984 kB
HighTotal:      131008 kB
HighFree:        51296 kB
LowTotal:       903652 kB
LowFree:        878220 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:             8896 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:37:18 (client local time) WITH STATUS 1 IN 106.543 SECONDS
stats: 8956 7 106.543 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/8090/stat): 8090 (pb2sat) R 8089 8090 4061 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22034068 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8090/statm): 373 2 364 364 0 9 0
[pid=8090] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-blp-ic97.opb

[startup+10.0019 s]
Raw data (loadavg): 0.87 0.97 0.93 2/55 8090
Raw data (/proc/8090/stat): 8090 (pb2sat) R 8089 8090 4061 0 -1 0 14936 0 0 0 961 36 0 0 25 0 1 0 22034068 44556288 9393 4294967295 134512640 135987407 3221224560 3221222032 134610777 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8090/statm): 10878 9393 364 364 0 10514 0
[pid=8090] vsize: 43512
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 43512

[startup+20.0025 s]
Raw data (loadavg): 0.89 0.97 0.93 2/55 8090
Raw data (/proc/8090/stat): 8090 (pb2sat) R 8089 8090 4061 0 -1 0 44469 0 0 0 1896 99 0 0 25 0 1 0 22034068 166207488 28394 4294967295 134512640 135987407 3221224560 3220602832 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8090/statm): 40578 28394 364 364 0 40214 0
[pid=8090] vsize: 162312
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 162312

[startup+30.0031 s]
Raw data (loadavg): 0.91 0.97 0.93 2/55 8090
Raw data (/proc/8090/stat): 8090 (pb2sat) R 8089 8090 4061 0 -1 0 56980 0 0 0 2863 131 0 0 25 0 1 0 22034068 161193984 34566 4294967295 134512640 135987407 3221224560 3220464512 134856565 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8090/statm): 39354 34566 364 364 0 38990 0
[pid=8090] vsize: 157416
Current children cumulated CPU time (s) 29.94
Current children cumulated vsize (Kb) 157416

[startup+40.0036 s]
Raw data (loadavg): 0.92 0.97 0.93 2/55 8090
Raw data (/proc/8090/stat): 8090 (pb2sat) R 8089 8090 4061 0 -1 0 94263 0 0 0 3777 214 0 0 25 0 1 0 22034068 286273536 49672 4294967295 134512640 135987407 3221224560 3218128460 134635332 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8090/statm): 69891 49672 364 364 0 69527 0
[pid=8090] vsize: 279564
Current children cumulated CPU time (s) 39.91
Current children cumulated vsize (Kb) 279564

[startup+50.0042 s]
Raw data (loadavg): 0.93 0.97 0.93 2/55 8090
Raw data (/proc/8090/stat): 8090 (pb2sat) R 8089 8090 4061 0 -1 0 113457 0 0 0 4731 257 0 0 25 0 1 0 22034068 351592448 68623 4294967295 134512640 135987407 3221224560 3218067632 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8090/statm): 85838 68623 364 364 0 85474 0
[pid=8090] vsize: 343352
Current children cumulated CPU time (s) 49.88
Current children cumulated vsize (Kb) 343352

[startup+60.0037 s]
Raw data (loadavg): 0.94 0.97 0.93 2/55 8090
Raw data (/proc/8090/stat): 8090 (pb2sat) R 8089 8090 4061 0 -1 0 156660 0 0 0 5644 340 0 0 25 0 1 0 22034068 487411712 92177 4294967295 134512640 135987407 3221224560 3217989676 135480732 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8090/statm): 118997 92177 364 364 0 118633 0
[pid=8090] vsize: 475988
Current children cumulated CPU time (s) 59.84
Current children cumulated vsize (Kb) 475988

[startup+70.0043 s]
Raw data (loadavg): 0.95 0.97 0.93 2/55 8090
Raw data (/proc/8090/stat): 8090 (pb2sat) R 8089 8090 4061 0 -1 0 199403 0 0 0 6551 431 0 0 25 0 1 0 22034068 615165952 110097 4294967295 134512640 135987407 3221224560 3218090832 134637036 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8090/statm): 150187 110097 364 364 0 149823 0
[pid=8090] vsize: 600748
Current children cumulated CPU time (s) 69.82
Current children cumulated vsize (Kb) 600748

[startup+80.0049 s]
Raw data (loadavg): 0.96 0.97 0.93 2/55 8090
Raw data (/proc/8090/stat): 8090 (pb2sat) R 8089 8090 4061 0 -1 0 216445 0 0 0 7511 469 0 0 25 0 1 0 22034068 674705408 126909 4294967295 134512640 135987407 3221224560 3217954720 134537597 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8090/statm): 164723 126909 364 364 0 164359 0
[pid=8090] vsize: 658892
Current children cumulated CPU time (s) 79.8
Current children cumulated vsize (Kb) 658892

[startup+90.0054 s]
Raw data (loadavg): 0.96 0.97 0.93 2/55 8090
Raw data (/proc/8090/stat): 8090 (pb2sat) R 8089 8090 4061 0 -1 0 238309 0 0 0 8459 518 0 0 25 0 1 0 22034068 710107136 148496 4294967295 134512640 135987407 3221224560 3217941616 134537547 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8090/statm): 173366 148496 364 364 0 173002 0
[pid=8090] vsize: 693464
Current children cumulated CPU time (s) 89.77
Current children cumulated vsize (Kb) 693464

[startup+100.006 s]
Raw data (loadavg): 0.97 0.97 0.93 2/55 8090
Raw data (/proc/8090/stat): 8090 (pb2sat) R 8089 8090 4061 0 -1 0 258804 0 0 0 9415 559 0 0 25 0 1 0 22034068 745545728 168729 4294967295 134512640 135987407 3221224560 3219692704 135328811 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8090/statm): 182018 168729 364 364 0 181654 0
[pid=8090] vsize: 728072
Current children cumulated CPU time (s) 99.74
Current children cumulated vsize (Kb) 728072
One traced child (pid=8090) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 106.809
CPU time (s): 106.543
CPU user time (s): 100.611
CPU system time (s): 5.9321
CPU usage (%): 99.7511
Max. virtual memory (cumulated for all children) (Kb): 728072

Verifier Data

ERROR: no interpretation found !