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-misc04.opb
MD5SUM7b42190d864979953c47e5a92736f365
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 43188899594881916928
Number of bits of the biggest number in a constraint 66
Biggest sum of numbers in a constraint 133861748414790074368
Number of bits of the biggest sum of numbers67
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables146276
Total number of constraints1755
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)45
Number of constraints which are nor clauses,nor cardinality constraints1710
Minimum length of a constraint1
Maximum length of a constraint5071

Trace number 9967

Launcher Data

LAUNCH ON wulflinc30 THE 2005-09-23 16:18:47 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8724 boxname=wulflinc30 idbench=520 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  7b42190d864979953c47e5a92736f365  /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-20-10-misc04.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-20-10-misc04.opb
IDLAUNCH: 8724
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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		: 451.161
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:        929920 kB
Buffers:         11964 kB
Cached:          75348 kB
SwapCached:          0 kB
Active:          52596 kB
Inactive:        37612 kB
HighTotal:      131008 kB
HighFree:        51604 kB
LowTotal:       903652 kB
LowFree:        878316 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8900 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:20:25 (client local time) WITH STATUS 0 IN 95.4895 SECONDS
stats: 8724 7 95.4895 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/9332/stat): 9332 (pb2sat) R 9331 9332 4004 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21532594 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9332/statm): 373 2 364 364 0 9 0
[pid=9332] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-20-10-misc04.opb

[startup+10.0023 s]
Raw data (loadavg): 0.93 0.96 0.91 2/55 9332
Raw data (/proc/9332/stat): 9332 (pb2sat) R 9331 9332 4004 0 -1 0 29233 0 0 0 933 64 0 0 25 0 1 0 21532594 88727552 18093 4294967295 134512640 135987407 3221224560 3221034808 134930946 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9332/statm): 21662 18093 364 364 0 21298 0
[pid=9332] vsize: 86648
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 86648

[startup+20.0031 s]
Raw data (loadavg): 0.94 0.96 0.91 2/55 9332
Raw data (/proc/9332/stat): 9332 (pb2sat) R 9331 9332 4004 0 -1 0 57949 0 0 0 1872 123 0 0 25 0 1 0 21532594 172658688 35583 4294967295 134512640 135987407 3221224560 3221221520 135477380 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9332/statm): 42153 35583 364 364 0 41789 0
[pid=9332] vsize: 168612
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 168612

[startup+30.0039 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 9332
Raw data (/proc/9332/stat): 9332 (pb2sat) R 9331 9332 4004 0 -1 0 97205 0 0 0 2788 204 0 0 25 0 1 0 21532594 322949120 52638 4294967295 134512640 135987407 3221224560 3221065376 134862217 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9332/statm): 78845 52638 364 364 0 78481 0
[pid=9332] vsize: 315380
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 315380

[startup+40.0047 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 9332
Raw data (/proc/9332/stat): 9332 (pb2sat) R 9331 9332 4004 0 -1 0 111997 0 0 0 3757 235 0 0 25 0 1 0 21532594 326463488 67181 4294967295 134512640 135987407 3221224560 3221029172 135479957 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9332/statm): 79703 67181 364 364 0 79339 0
[pid=9332] vsize: 318812
Current children cumulated CPU time (s) 39.92
Current children cumulated vsize (Kb) 318812

[startup+50.0054 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 9332
Raw data (/proc/9332/stat): 9332 (pb2sat) R 9331 9332 4004 0 -1 0 153023 0 0 0 4669 319 0 0 25 0 1 0 21532594 523141120 107015 4294967295 134512640 135987407 3221224560 3221025328 134893003 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9332/statm): 127720 107015 364 364 0 127356 0
[pid=9332] vsize: 510880
Current children cumulated CPU time (s) 49.88
Current children cumulated vsize (Kb) 510880

[startup+60.0053 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 9332
Raw data (/proc/9332/stat): 9332 (pb2sat) R 9331 9332 4004 0 -1 0 189617 0 0 0 5587 401 0 0 25 0 1 0 21532594 594165760 100419 4294967295 134512640 135987407 3221224560 3221014192 134877726 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9332/statm): 145060 100419 364 364 0 144696 0
[pid=9332] vsize: 580240
Current children cumulated CPU time (s) 59.88
Current children cumulated vsize (Kb) 580240

[startup+70.0051 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 9332
Raw data (/proc/9332/stat): 9332 (pb2sat) R 9331 9332 4004 0 -1 0 204877 0 0 0 6557 431 0 0 25 0 1 0 21532594 598626304 115427 4294967295 134512640 135987407 3221224560 3221033584 134887312 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9332/statm): 146149 115427 364 364 0 145785 0
[pid=9332] vsize: 584596
Current children cumulated CPU time (s) 69.88
Current children cumulated vsize (Kb) 584596

[startup+80.0059 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 9332
Raw data (/proc/9332/stat): 9332 (pb2sat) R 9331 9332 4004 0 -1 0 220264 0 0 0 7523 463 0 0 25 0 1 0 21532594 604168192 130563 4294967295 134512640 135987407 3221224560 3221003596 134637015 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9332/statm): 147502 130563 364 364 0 147138 0
[pid=9332] vsize: 590008
Current children cumulated CPU time (s) 79.86
Current children cumulated vsize (Kb) 590008

[startup+90.0057 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 9332
Raw data (/proc/9332/stat): 9332 (pb2sat) R 9331 9332 4004 0 -1 0 232584 0 0 0 8497 490 0 0 25 0 1 0 21532594 658284544 142680 4294967295 134512640 135987407 3221224560 3220995268 134558630 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9332/statm): 160714 142680 364 364 0 160350 0
[pid=9332] vsize: 642856
Current children cumulated CPU time (s) 89.87
Current children cumulated vsize (Kb) 642856



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+95.3022 s]
Raw data (loadavg): 0.98 0.96 0.91 1/55 9332
Raw data (/proc/9332/stat): 9332 (pb2sat) T 9331 9332 4004 0 -1 0 240843 0 0 0 9010 506 0 0 25 0 1 0 21532594 945258496 150800 4294967295 134512640 135987407 3221224560 3221061456 135544035 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/9332/statm): 230776 150800 364 364 0 230412 0
[pid=9332] vsize: 923104
Current children cumulated CPU time (s) 95.16
Current children cumulated vsize (Kb) 923104

Sending SIGTERM to -9332
Sleeping 2 seconds
Sending SIGKILL to -9332
One traced child (pid=9332) 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): 97.615
CPU time (s): 95.4895
CPU user time (s): 90.1133
CPU system time (s): 5.37618
CPU usage (%): 97.8226
Max. virtual memory (cumulated for all children) (Kb): 923104

Verifier Data

ERROR: no interpretation found !