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-misc06.opb
MD5SUM387c5db023320cb4bbb2858edf3c339a
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 211324891222433890304
Number of bits of the biggest number in a constraint 68
Biggest sum of numbers in a constraint 23205541583449342607360
Number of bits of the biggest sum of numbers75
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables51018
Total number of constraints932
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)112
Number of constraints which are nor clauses,nor cardinality constraints820
Minimum length of a constraint1
Maximum length of a constraint13471

Trace number 9968

Launcher Data

LAUNCH ON wulflinc8 THE 2005-09-23 16:18:51 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8726 boxname=wulflinc8 idbench=522 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  387c5db023320cb4bbb2858edf3c339a  /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-20-10-misc06.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-20-10-misc06.opb
IDLAUNCH: 8726
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.023
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		: 451.023
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:        930600 kB
Buffers:         12996 kB
Cached:          73636 kB
SwapCached:          0 kB
Active:          49072 kB
Inactive:        40480 kB
HighTotal:      131008 kB
HighFree:        53396 kB
LowTotal:       903652 kB
LowFree:        877204 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:             8964 kB
Committed_AS:    63640 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:20:27 (client local time) WITH STATUS 0 IN 93.4168 SECONDS
stats: 8726 7 93.4168 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/9086/stat): 9086 (pb2sat) R 9085 9086 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21585730 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9086/statm): 373 10 364 364 0 9 0
[pid=9086] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-20-10-misc06.opb

[startup+10.0019 s]
Raw data (loadavg): 0.93 0.93 0.92 2/55 9086
Raw data (/proc/9086/stat): 9086 (pb2sat) R 9085 9086 4060 0 -1 0 28749 0 0 0 927 69 0 0 25 0 1 0 21585730 85778432 17600 4294967295 134512640 135987407 3221224560 3221216448 134854884 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9086/statm): 20942 17600 364 364 0 20578 0
[pid=9086] vsize: 83768
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 83768

[startup+20.0027 s]
Raw data (loadavg): 0.94 0.93 0.92 2/55 9086
Raw data (/proc/9086/stat): 9086 (pb2sat) R 9085 9086 4060 0 -1 0 55969 0 0 0 1868 127 0 0 25 0 1 0 21585730 163086336 33586 4294967295 134512640 135987407 3221224560 3221215984 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9086/statm): 39816 33586 364 364 0 39452 0
[pid=9086] vsize: 159264
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 159264

[startup+30.0035 s]
Raw data (loadavg): 0.95 0.93 0.92 2/55 9086
Raw data (/proc/9086/stat): 9086 (pb2sat) R 9085 9086 4060 0 -1 0 94893 0 0 0 2785 208 0 0 25 0 1 0 21585730 312430592 50305 4294967295 134512640 135987407 3221224560 3221188240 134877708 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9086/statm): 76277 50305 364 364 0 75913 0
[pid=9086] vsize: 305108
Current children cumulated CPU time (s) 29.93
Current children cumulated vsize (Kb) 305108

[startup+40.0033 s]
Raw data (loadavg): 0.95 0.94 0.92 2/55 9086
Raw data (/proc/9086/stat): 9086 (pb2sat) R 9085 9086 4060 0 -1 0 110289 0 0 0 3752 241 0 0 25 0 1 0 21585730 317702144 65443 4294967295 134512640 135987407 3221224560 3221217520 134856473 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9086/statm): 77564 65443 364 364 0 77200 0
[pid=9086] vsize: 310256
Current children cumulated CPU time (s) 39.93
Current children cumulated vsize (Kb) 310256

[startup+50.004 s]
Raw data (loadavg): 0.96 0.94 0.92 2/55 9086
Raw data (/proc/9086/stat): 9086 (pb2sat) R 9085 9086 4060 0 -1 0 152002 0 0 0 4663 326 0 0 25 0 1 0 21585730 446726144 87530 4294967295 134512640 135987407 3221224560 3221178368 134636923 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9086/statm): 109064 87530 364 364 0 108700 0
[pid=9086] vsize: 436256
Current children cumulated CPU time (s) 49.89
Current children cumulated vsize (Kb) 436256

[startup+60.0038 s]
Raw data (loadavg): 0.97 0.94 0.92 2/55 9086
Raw data (/proc/9086/stat): 9086 (pb2sat) R 9085 9086 4060 0 -1 0 188292 0 0 0 5580 408 0 0 25 0 1 0 21585730 584052736 99043 4294967295 134512640 135987407 3221224560 3221214448 134877726 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9086/statm): 142591 99043 364 364 0 142227 0
[pid=9086] vsize: 570364
Current children cumulated CPU time (s) 59.88
Current children cumulated vsize (Kb) 570364

[startup+70.0046 s]
Raw data (loadavg): 0.97 0.94 0.92 2/55 9086
Raw data (/proc/9086/stat): 9086 (pb2sat) R 9085 9086 4060 0 -1 0 202979 0 0 0 6548 440 0 0 25 0 1 0 21585730 588242944 113479 4294967295 134512640 135987407 3221224560 3221183632 134878092 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9086/statm): 143614 113479 364 364 0 143250 0
[pid=9086] vsize: 574456
Current children cumulated CPU time (s) 69.88
Current children cumulated vsize (Kb) 574456

[startup+80.0054 s]
Raw data (loadavg): 0.97 0.94 0.92 2/55 9086
Raw data (/proc/9086/stat): 9086 (pb2sat) R 9085 9086 4060 0 -1 0 218720 0 0 0 7511 477 0 0 25 0 1 0 21585730 593244160 128955 4294967295 134512640 135987407 3221224560 3221212288 134537496 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9086/statm): 144835 128955 364 364 0 144471 0
[pid=9086] vsize: 579340
Current children cumulated CPU time (s) 79.88
Current children cumulated vsize (Kb) 579340

[startup+90.0062 s]
Raw data (loadavg): 0.98 0.94 0.92 2/55 9086
Raw data (/proc/9086/stat): 9086 (pb2sat) R 9085 9086 4060 0 -1 0 230920 0 0 0 8482 506 0 0 25 0 1 0 21585730 647225344 140948 4294967295 134512640 135987407 3221224560 3221203548 134669184 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9086/statm): 158014 140948 364 364 0 157650 0
[pid=9086] vsize: 632056
Current children cumulated CPU time (s) 89.88
Current children cumulated vsize (Kb) 632056



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+93.2325 s]
Raw data (loadavg): 0.98 0.94 0.92 1/55 9086
Raw data (/proc/9086/stat): 9086 (pb2sat) T 9085 9086 4060 0 -1 0 241196 0 0 0 8782 527 0 0 25 0 1 0 21585730 943796224 150951 4294967295 134512640 135987407 3221224560 3221200108 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/9086/statm): 230419 150951 364 364 0 230055 0
[pid=9086] vsize: 921676
Current children cumulated CPU time (s) 93.09
Current children cumulated vsize (Kb) 921676

Sending SIGTERM to -9086
Sleeping 2 seconds
Sending SIGKILL to -9086
One traced child (pid=9086) 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): 95.5496
CPU time (s): 93.4168
CPU user time (s): 87.8306
CPU system time (s): 5.58615
CPU usage (%): 97.7678
Max. virtual memory (cumulated for all children) (Kb): 921676

Verifier Data

ERROR: no interpretation found !