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/MIPLIB/miplib3/normalized-mps-v2-20-10-rentacar.opb
MD5SUM7d26272ea1585b40e7b5583a6da2286f
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 5310
Biggest coefficient in the objective function 26843545600000
Number of bits for the biggest coefficient in the objective function 45
Sum of the numbers in the objective function 6957856676716407
Number of bits of the sum of numbers in the objective function 53
Biggest number in a constraint 26843545600000
Number of bits of the biggest number in a constraint 45
Biggest sum of numbers in a constraint 14026955228261965
Number of bits of the biggest sum of numbers54
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark14.4268
Number of variables264240
Total number of constraints6965
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)55
Number of constraints which are nor clauses,nor cardinality constraints6910
Minimum length of a constraint1
Maximum length of a constraint60540

Trace number 10112

Launcher Data

LAUNCH ON wulflinc18 THE 2005-09-23 17:01:19 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8865 boxname=wulflinc18 idbench=661 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  7d26272ea1585b40e7b5583a6da2286f  /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-rentacar.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-rentacar.opb
IDLAUNCH: 8865
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.061
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.061
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:      1034660 kB
MemFree:        901984 kB
Buffers:         15056 kB
Cached:          97348 kB
SwapCached:          0 kB
Active:          71068 kB
Inactive:        44252 kB
HighTotal:      131008 kB
HighFree:        29372 kB
LowTotal:       903652 kB
LowFree:        872612 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              36 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11636 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:02:54 (client local time) WITH STATUS 0 IN 92.066 SECONDS
stats: 8865 7 92.066 0

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
s UNKNOWN

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/7849/stat): 7849 (pb2sat) R 7848 7849 4060 0 -1 0 18 0 0 0 0 0 0 0 25 0 1 0 21827292 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/7849/statm): 373 2 364 364 0 9 0
[pid=7849] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-rentacar.opb

[startup+10.0021 s]
Raw data (loadavg): 0.94 0.95 0.95 2/55 7851
Raw data (/proc/7849/stat): 7849 (pb2sat) R 7848 7849 4060 0 -1 0 26938 0 0 0 935 60 0 0 25 0 1 0 21827292 86577152 15823 4294967295 134512640 135987407 3221224560 3220832044 134892392 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7849/statm): 21137 15823 364 364 0 20773 0
[pid=7849] vsize: 84548
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 84548

[startup+20.0031 s]
Raw data (loadavg): 0.95 0.95 0.95 2/55 7851
Raw data (/proc/7849/stat): 7849 (pb2sat) R 7848 7849 4060 0 -1 0 54779 0 0 0 1871 123 0 0 25 0 1 0 21827292 163885056 32426 4294967295 134512640 135987407 3221224560 3220849700 134537546 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7849/statm): 40011 32426 364 364 0 39647 0
[pid=7849] vsize: 160044
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 160044

[startup+30.003 s]
Raw data (loadavg): 0.95 0.95 0.95 2/55 7851
Raw data (/proc/7849/stat): 7849 (pb2sat) R 7848 7849 4060 0 -1 0 94837 0 0 0 2780 210 0 0 25 0 1 0 21827292 314445824 50270 4294967295 134512640 135987407 3221224560 3221115296 134877726 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7849/statm): 76769 50270 364 364 0 76405 0
[pid=7849] vsize: 307076
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 307076

[startup+40.0039 s]
Raw data (loadavg): 0.96 0.95 0.95 2/55 7851
Raw data (/proc/7849/stat): 7849 (pb2sat) R 7848 7849 4060 0 -1 0 111222 0 0 0 3742 249 0 0 25 0 1 0 21827292 321003520 66394 4294967295 134512640 135987407 3221224560 3221116316 135484786 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7849/statm): 78370 66394 364 364 0 78006 0
[pid=7849] vsize: 313480
Current children cumulated CPU time (s) 39.91
Current children cumulated vsize (Kb) 313480

[startup+50.0049 s]
Raw data (loadavg): 0.97 0.95 0.95 2/55 7851
Raw data (/proc/7849/stat): 7849 (pb2sat) R 7848 7849 4060 0 -1 0 153255 0 0 0 4650 337 0 0 25 0 1 0 21827292 449757184 88798 4294967295 134512640 135987407 3221224560 3220982396 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7849/statm): 109804 88798 364 364 0 109440 0
[pid=7849] vsize: 439216
Current children cumulated CPU time (s) 49.87
Current children cumulated vsize (Kb) 439216

[startup+60.0058 s]
Raw data (loadavg): 0.97 0.96 0.95 2/55 7851
Raw data (/proc/7849/stat): 7849 (pb2sat) R 7848 7849 4060 0 -1 0 189806 0 0 0 5565 422 0 0 25 0 1 0 21827292 587354112 100575 4294967295 134512640 135987407 3221224560 3221050032 134560690 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7849/statm): 143397 100575 364 364 0 143033 0
[pid=7849] vsize: 573588
Current children cumulated CPU time (s) 59.87
Current children cumulated vsize (Kb) 573588

[startup+70.0067 s]
Raw data (loadavg): 0.97 0.96 0.95 2/55 7851
Raw data (/proc/7849/stat): 7849 (pb2sat) R 7848 7849 4060 0 -1 0 206008 0 0 0 6530 457 0 0 25 0 1 0 21827292 591814656 116508 4294967295 134512640 135987407 3221224560 3221134296 134864165 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7849/statm): 144486 116508 364 364 0 144122 0
[pid=7849] vsize: 577944
Current children cumulated CPU time (s) 69.87
Current children cumulated vsize (Kb) 577944

[startup+80.0076 s]
Raw data (loadavg): 0.98 0.96 0.95 2/55 7851
Raw data (/proc/7849/stat): 7849 (pb2sat) R 7848 7849 4060 0 -1 0 221861 0 0 0 7485 501 0 0 25 0 1 0 21827292 596545536 132090 4294967295 134512640 135987407 3221224560 3221215100 135499880 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7849/statm): 145641 132090 364 364 0 145277 0
[pid=7849] vsize: 582564
Current children cumulated CPU time (s) 79.86
Current children cumulated vsize (Kb) 582564

[startup+90.0086 s]
Raw data (loadavg): 0.98 0.96 0.95 2/55 7851
Raw data (/proc/7849/stat): 7849 (pb2sat) R 7848 7849 4060 0 -1 0 235630 0 0 0 8446 539 0 0 25 0 1 0 21827292 651337728 145626 4294967295 134512640 135987407 3221224560 3221221724 134864914 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7849/statm): 159018 145626 364 364 0 158654 0
[pid=7849] vsize: 636072
Current children cumulated CPU time (s) 89.85
Current children cumulated vsize (Kb) 636072



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+91.8526 s]
Raw data (loadavg): 0.98 0.96 0.95 1/55 7851
Raw data (/proc/7849/stat): 7849 (pb2sat) T 7848 7849 4060 0 -1 0 241717 0 0 0 8617 551 0 0 25 0 1 0 21827292 943853568 151540 4294967295 134512640 135987407 3221224560 3221215196 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/7849/statm): 230433 151540 364 364 0 230069 0
[pid=7849] vsize: 921732
Current children cumulated CPU time (s) 91.68
Current children cumulated vsize (Kb) 921732

Sending SIGTERM to -7849
Sleeping 2 seconds
Sending SIGKILL to -7849
One traced child (pid=7849) ended because it received signal 9 (SIGKILL)
All traced children have exited ! Game is over.

Child ended because it received signal 9 (SIGKILL)
Real time (s): 94.1697
CPU time (s): 92.066
CPU user time (s): 86.2349
CPU system time (s): 5.83111
CPU usage (%): 97.7661
Max. virtual memory (cumulated for all children) (Kb): 921732

Verifier Data

ERROR: no interpretation found !