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-v2-13-7/MIPLIB/miplib3/normalized-mps-v2-13-7-misc06.opb
MD5SUMa9bcf0b6d0323d251b7b3500c52602fc
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 21
Biggest coefficient in the objective function 1048576
Number of bits for the biggest coefficient in the objective function 21
Sum of the numbers in the objective function 2097151
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 206346968982065664
Number of bits of the biggest number in a constraint 58
Biggest sum of numbers in a constraint 22661639986845859840
Number of bits of the biggest sum of numbers65
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables34058
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 constraint8981

Trace number 10470

Launcher Data

LAUNCH ON wulflinc26 THE 2005-09-23 18:33:43 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9231 boxname=wulflinc26 idbench=1027 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a9bcf0b6d0323d251b7b3500c52602fc  /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-13-7-misc06.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-13-7-misc06.opb
IDLAUNCH: 9231
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.055
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		: 451.055
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:        906012 kB
Buffers:         12208 kB
Cached:          98904 kB
SwapCached:          0 kB
Active:          46832 kB
Inactive:        67200 kB
HighTotal:      131008 kB
HighFree:        37016 kB
LowTotal:       903652 kB
LowFree:        868996 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8948 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 18:35:17 (client local time) WITH STATUS 0 IN 91.933 SECONDS
stats: 9231 7 91.933 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/10023/stat): 10023 (pb2sat) R 10022 10023 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22345447 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/10023/statm): 373 2 364 364 0 9 0
[pid=10023] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-13-7-misc06.opb

[startup+10.0019 s]
Raw data (loadavg): 0.92 0.93 0.90 2/55 10023
Raw data (/proc/10023/stat): 10023 (pb2sat) R 10022 10023 4005 0 -1 0 28230 0 0 0 935 63 0 0 25 0 1 0 22345447 83165184 17078 4294967295 134512640 135987407 3221224560 3221209840 134862238 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10023/statm): 20304 17078 364 364 0 19940 0
[pid=10023] vsize: 81216
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 81216

[startup+20.0026 s]
Raw data (loadavg): 0.93 0.94 0.91 2/55 10023
Raw data (/proc/10023/stat): 10023 (pb2sat) R 10022 10023 4005 0 -1 0 55583 0 0 0 1875 122 0 0 25 0 1 0 22345447 160473088 33195 4294967295 134512640 135987407 3221224560 3221206204 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10023/statm): 39178 33195 364 364 0 38814 0
[pid=10023] vsize: 156712
Current children cumulated CPU time (s) 19.97
Current children cumulated vsize (Kb) 156712

[startup+30.0033 s]
Raw data (loadavg): 0.94 0.94 0.91 2/55 10023
Raw data (/proc/10023/stat): 10023 (pb2sat) R 10022 10023 4005 0 -1 0 94483 0 0 0 2793 201 0 0 25 0 1 0 22345447 310358016 49893 4294967295 134512640 135987407 3221224560 3221212960 134537371 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10023/statm): 75771 49893 364 364 0 75407 0
[pid=10023] vsize: 303084
Current children cumulated CPU time (s) 29.94
Current children cumulated vsize (Kb) 303084

[startup+40.004 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 10023
Raw data (/proc/10023/stat): 10023 (pb2sat) R 10022 10023 4005 0 -1 0 110249 0 0 0 3759 235 0 0 25 0 1 0 22345447 315088896 65391 4294967295 134512640 135987407 3221224560 3221200028 134931008 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10023/statm): 76926 65391 364 364 0 76562 0
[pid=10023] vsize: 307704
Current children cumulated CPU time (s) 39.94
Current children cumulated vsize (Kb) 307704

[startup+50.0047 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 10023
Raw data (/proc/10023/stat): 10023 (pb2sat) R 10022 10023 4005 0 -1 0 152204 0 0 0 4664 325 0 0 25 0 1 0 22345447 444112896 87715 4294967295 134512640 135987407 3221224560 3221191040 135486823 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10023/statm): 108426 87715 364 364 0 108062 0
[pid=10023] vsize: 433704
Current children cumulated CPU time (s) 49.89
Current children cumulated vsize (Kb) 433704

[startup+60.0043 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 10023
Raw data (/proc/10023/stat): 10023 (pb2sat) R 10022 10023 4005 0 -1 0 187938 0 0 0 5587 402 0 0 25 0 1 0 22345447 581304320 98681 4294967295 134512640 135987407 3221224560 3221196816 134537597 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10023/statm): 141920 98681 364 364 0 141556 0
[pid=10023] vsize: 567680
Current children cumulated CPU time (s) 59.89
Current children cumulated vsize (Kb) 567680

[startup+70.005 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 10023
Raw data (/proc/10023/stat): 10023 (pb2sat) R 10022 10023 4005 0 -1 0 203711 0 0 0 6546 442 0 0 25 0 1 0 22345447 586305536 114188 4294967295 134512640 135987407 3221224560 3221189632 134856382 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10023/statm): 143141 114188 364 364 0 142777 0
[pid=10023] vsize: 572564
Current children cumulated CPU time (s) 69.88
Current children cumulated vsize (Kb) 572564

[startup+80.0057 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 10023
Raw data (/proc/10023/stat): 10023 (pb2sat) R 10022 10023 4005 0 -1 0 219658 0 0 0 7509 479 0 0 25 0 1 0 22345447 591036416 129862 4294967295 134512640 135987407 3221224560 3221208096 134864390 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10023/statm): 144296 129862 364 364 0 143932 0
[pid=10023] vsize: 577184
Current children cumulated CPU time (s) 79.88
Current children cumulated vsize (Kb) 577184

[startup+90.0064 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 10023
Raw data (/proc/10023/stat): 10023 (pb2sat) R 10022 10023 4005 0 -1 0 232422 0 0 0 8481 506 0 0 25 0 1 0 22345447 645423104 142408 4294967295 134512640 135987407 3221224560 3221212452 134865975 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10023/statm): 157574 142408 364 364 0 157210 0
[pid=10023] vsize: 630296
Current children cumulated CPU time (s) 89.87
Current children cumulated vsize (Kb) 630296



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+91.753 s]
Raw data (loadavg): 0.98 0.95 0.91 1/55 10023
Raw data (/proc/10023/stat): 10023 (pb2sat) T 10022 10023 4005 0 -1 0 241714 0 0 0 8637 524 0 0 25 0 1 0 22345447 943751168 151419 4294967295 134512640 135987407 3221224560 3221190700 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/10023/statm): 230408 151419 364 364 0 230044 0
[pid=10023] vsize: 921632
Current children cumulated CPU time (s) 91.61
Current children cumulated vsize (Kb) 921632

Sending SIGTERM to -10023
Sleeping 2 seconds
Sending SIGKILL to -10023
One traced child (pid=10023) 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): 94.0705
CPU time (s): 91.933
CPU user time (s): 86.3809
CPU system time (s): 5.55215
CPU usage (%): 97.7277
Max. virtual memory (cumulated for all children) (Kb): 921632

Verifier Data

ERROR: no interpretation found !