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/miplib/normalized-mps-v2-20-10-rentacar.opb
MD5SUM1da46f3b0e5a2fdd24f0565227d67bf2
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 benchmark14.2758
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 9986

Launcher Data

LAUNCH ON wulflinc32 THE 2005-09-23 16:22:22 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8742 boxname=wulflinc32 idbench=538 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1da46f3b0e5a2fdd24f0565227d67bf2  /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-20-10-rentacar.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-20-10-rentacar.opb
IDLAUNCH: 8742
/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:        898188 kB
Buffers:         14740 kB
Cached:         101540 kB
SwapCached:          0 kB
Active:          67808 kB
Inactive:        51400 kB
HighTotal:      131072 kB
HighFree:        25088 kB
LowTotal:       903652 kB
LowFree:        873100 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6988 kB
Slab:            11668 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:23:57 (client local time) WITH STATUS 0 IN 92.8219 SECONDS
stats: 8742 7 92.8219 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/7411/stat): 7411 (pb2sat) R 7410 7411 4005 0 -1 0 18 0 0 0 0 0 0 0 19 0 1 0 21551584 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/7411/statm): 373 2 364 364 0 9 0
[pid=7411] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-20-10-rentacar.opb

[startup+10.0021 s]
Raw data (loadavg): 0.89 0.96 0.98 2/55 7411
Raw data (/proc/7411/stat): 7411 (pb2sat) R 7410 7411 4005 0 -1 0 26887 0 0 0 933 64 0 0 25 0 1 0 21551584 86577152 15773 4294967295 134512640 135987407 3221224560 3220827072 134866218 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7411/statm): 21137 15773 364 364 0 20773 0
[pid=7411] vsize: 84548
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 84548

[startup+20.0029 s]
Raw data (loadavg): 0.91 0.96 0.98 2/55 7411
Raw data (/proc/7411/stat): 7411 (pb2sat) R 7410 7411 4005 0 -1 0 54636 0 0 0 1873 122 0 0 25 0 1 0 21551584 163885056 32285 4294967295 134512640 135987407 3221224560 3220849616 134878092 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7411/statm): 40011 32285 364 364 0 39647 0
[pid=7411] vsize: 160044
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 160044

[startup+30.0027 s]
Raw data (loadavg): 0.92 0.96 0.98 2/55 7411
Raw data (/proc/7411/stat): 7411 (pb2sat) R 7410 7411 4005 0 -1 0 94837 0 0 0 2783 210 0 0 25 0 1 0 21551584 314445824 50270 4294967295 134512640 135987407 3221224560 3221115296 134877628 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7411/statm): 76769 50270 364 364 0 76405 0
[pid=7411] vsize: 307076
Current children cumulated CPU time (s) 29.93
Current children cumulated vsize (Kb) 307076

[startup+40.0035 s]
Raw data (loadavg): 0.93 0.96 0.98 2/55 7411
Raw data (/proc/7411/stat): 7411 (pb2sat) R 7410 7411 4005 0 -1 0 110787 0 0 0 3746 247 0 0 25 0 1 0 21551584 320868352 65966 4294967295 134512640 135987407 3221224560 3221082304 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7411/statm): 78337 65966 364 364 0 77973 0
[pid=7411] vsize: 313348
Current children cumulated CPU time (s) 39.93
Current children cumulated vsize (Kb) 313348

[startup+50.0042 s]
Raw data (loadavg): 0.94 0.96 0.98 2/55 7411
Raw data (/proc/7411/stat): 7411 (pb2sat) R 7410 7411 4005 0 -1 0 152666 0 0 0 4657 332 0 0 25 0 1 0 21551584 449757184 88220 4294967295 134512640 135987407 3221224560 3220914720 134876463 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7411/statm): 109804 88221 364 364 0 109440 0
[pid=7411] vsize: 439216
Current children cumulated CPU time (s) 49.89
Current children cumulated vsize (Kb) 439216

[startup+60.005 s]
Raw data (loadavg): 0.95 0.96 0.98 2/55 7411
Raw data (/proc/7411/stat): 7411 (pb2sat) R 7410 7411 4005 0 -1 0 188926 0 0 0 5571 418 0 0 25 0 1 0 21551584 586948608 99708 4294967295 134512640 135987407 3221224560 3220965040 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7411/statm): 143298 99708 364 364 0 142934 0
[pid=7411] vsize: 573192
Current children cumulated CPU time (s) 59.89
Current children cumulated vsize (Kb) 573192

[startup+70.0048 s]
Raw data (loadavg): 0.96 0.96 0.98 2/55 7411
Raw data (/proc/7411/stat): 7411 (pb2sat) R 7410 7411 4005 0 -1 0 205017 0 0 0 6534 455 0 0 25 0 1 0 21551584 591273984 115533 4294967295 134512640 135987407 3221224560 3220988332 135499910 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7411/statm): 144354 115533 364 364 0 143990 0
[pid=7411] vsize: 577416
Current children cumulated CPU time (s) 69.89
Current children cumulated vsize (Kb) 577416

[startup+80.0056 s]
Raw data (loadavg): 0.96 0.96 0.98 2/55 7411
Raw data (/proc/7411/stat): 7411 (pb2sat) R 7410 7411 4005 0 -1 0 220879 0 0 0 7489 498 0 0 25 0 1 0 21551584 596275200 131125 4294967295 134512640 135987407 3221224560 3221221952 134615182 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7411/statm): 145575 131125 364 364 0 145211 0
[pid=7411] vsize: 582300
Current children cumulated CPU time (s) 79.87
Current children cumulated vsize (Kb) 582300

[startup+90.0053 s]
Raw data (loadavg): 0.97 0.96 0.98 2/55 7411
Raw data (/proc/7411/stat): 7411 (pb2sat) R 7410 7411 4005 0 -1 0 234476 0 0 0 8457 530 0 0 25 0 1 0 21551584 650661888 144492 4294967295 134512640 135987407 3221224560 3221174368 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7411/statm): 158853 144492 364 364 0 158489 0
[pid=7411] vsize: 635412
Current children cumulated CPU time (s) 89.87
Current children cumulated vsize (Kb) 635412



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+92.5791 s]
Raw data (loadavg): 0.97 0.96 0.98 1/55 7411
Raw data (/proc/7411/stat): 7411 (pb2sat) T 7410 7411 4005 0 -1 0 241715 0 0 0 8696 547 0 0 25 0 1 0 21551584 943853568 151538 4294967295 134512640 135987407 3221224560 3221215196 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/7411/statm): 230433 151538 364 364 0 230069 0
[pid=7411] vsize: 921732
Current children cumulated CPU time (s) 92.43
Current children cumulated vsize (Kb) 921732

Sending SIGTERM to -7411
Sleeping 2 seconds
Sending SIGKILL to -7411
One traced child (pid=7411) 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): 94.9
CPU time (s): 92.8219
CPU user time (s): 87.0268
CPU system time (s): 5.79512
CPU usage (%): 97.8102
Max. virtual memory (cumulated for all children) (Kb): 921732

Verifier Data

ERROR: no interpretation found !