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-misc06.opb
MD5SUM86682de73055d933eb09b91ae4b3aec3
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 10085

Launcher Data

LAUNCH ON wulflinc25 THE 2005-09-23 16:55:44 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8847 boxname=wulflinc25 idbench=643 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  86682de73055d933eb09b91ae4b3aec3  /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-misc06.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-misc06.opb
IDLAUNCH: 8847
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.002
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		: 451.002
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:        918308 kB
Buffers:         17556 kB
Cached:          79208 kB
SwapCached:          0 kB
Active:          48712 kB
Inactive:        50908 kB
HighTotal:      131008 kB
HighFree:        47936 kB
LowTotal:       903652 kB
LowFree:        870372 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:            11200 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:57:20 (client local time) WITH STATUS 0 IN 93.3758 SECONDS
stats: 8847 7 93.3758 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/9022/stat): 9022 (pb2sat) R 9021 9022 4004 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21757594 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9022/statm): 373 2 364 364 0 9 0
[pid=9022] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-misc06.opb

[startup+10.0019 s]
Raw data (loadavg): 0.92 0.94 0.92 2/55 9022
Raw data (/proc/9022/stat): 9022 (pb2sat) R 9021 9022 4004 0 -1 0 28762 0 0 0 932 64 0 0 25 0 1 0 21757594 85778432 17612 4294967295 134512640 135987407 3221224560 3221216176 134856587 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9022/statm): 20942 17612 364 364 0 20578 0
[pid=9022] vsize: 83768
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 83768

[startup+20.0025 s]
Raw data (loadavg): 0.93 0.94 0.92 2/55 9022
Raw data (/proc/9022/stat): 9022 (pb2sat) R 9021 9022 4004 0 -1 0 55963 0 0 0 1869 126 0 0 25 0 1 0 21757594 163086336 33580 4294967295 134512640 135987407 3221224560 3221217132 135499901 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9022/statm): 39816 33580 364 364 0 39452 0
[pid=9022] vsize: 159264
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 159264

[startup+30.0031 s]
Raw data (loadavg): 0.94 0.94 0.92 2/55 9022
Raw data (/proc/9022/stat): 9022 (pb2sat) R 9021 9022 4004 0 -1 0 94893 0 0 0 2784 209 0 0 25 0 1 0 21757594 312430592 50305 4294967295 134512640 135987407 3221224560 3221188240 134877708 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9022/statm): 76277 50305 364 364 0 75913 0
[pid=9022] vsize: 305108
Current children cumulated CPU time (s) 29.93
Current children cumulated vsize (Kb) 305108

[startup+40.0027 s]
Raw data (loadavg): 0.95 0.94 0.92 2/55 9022
Raw data (/proc/9022/stat): 9022 (pb2sat) R 9021 9022 4004 0 -1 0 110296 0 0 0 3747 245 0 0 25 0 1 0 21757594 317702144 65450 4294967295 134512640 135987407 3221224560 3221215904 134862192 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9022/statm): 77564 65450 364 364 0 77200 0
[pid=9022] vsize: 310256
Current children cumulated CPU time (s) 39.92
Current children cumulated vsize (Kb) 310256

[startup+50.0033 s]
Raw data (loadavg): 0.96 0.94 0.92 2/55 9022
Raw data (/proc/9022/stat): 9022 (pb2sat) R 9021 9022 4004 0 -1 0 152018 0 0 0 4660 328 0 0 25 0 1 0 21757594 446726144 87545 4294967295 134512640 135987407 3221224560 3221176344 134789811 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9022/statm): 109064 87545 364 364 0 108700 0
[pid=9022] vsize: 436256
Current children cumulated CPU time (s) 49.88
Current children cumulated vsize (Kb) 436256

[startup+60.0039 s]
Raw data (loadavg): 0.96 0.95 0.92 2/55 9022
Raw data (/proc/9022/stat): 9022 (pb2sat) R 9021 9022 4004 0 -1 0 188292 0 0 0 5577 411 0 0 25 0 1 0 21757594 584052736 99043 4294967295 134512640 135987407 3221224560 3221214448 134877735 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9022/statm): 142591 99043 364 364 0 142227 0
[pid=9022] vsize: 570364
Current children cumulated CPU time (s) 59.88
Current children cumulated vsize (Kb) 570364

[startup+70.0045 s]
Raw data (loadavg): 0.97 0.95 0.92 2/55 9022
Raw data (/proc/9022/stat): 9022 (pb2sat) R 9021 9022 4004 0 -1 0 203006 0 0 0 6542 445 0 0 25 0 1 0 21757594 588242944 113506 4294967295 134512640 135987407 3221224560 3221184032 135486806 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9022/statm): 143614 113506 364 364 0 143250 0
[pid=9022] vsize: 574456
Current children cumulated CPU time (s) 69.87
Current children cumulated vsize (Kb) 574456

[startup+80.0051 s]
Raw data (loadavg): 0.97 0.95 0.92 2/55 9022
Raw data (/proc/9022/stat): 9022 (pb2sat) R 9021 9022 4004 0 -1 0 218755 0 0 0 7506 480 0 0 25 0 1 0 21757594 593379328 128990 4294967295 134512640 135987407 3221224560 3221215552 134878034 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9022/statm): 144868 128990 364 364 0 144504 0
[pid=9022] vsize: 579472
Current children cumulated CPU time (s) 79.86
Current children cumulated vsize (Kb) 579472

[startup+90.0058 s]
Raw data (loadavg): 0.98 0.95 0.92 2/55 9022
Raw data (/proc/9022/stat): 9022 (pb2sat) R 9021 9022 4004 0 -1 0 230978 0 0 0 8475 512 0 0 25 0 1 0 21757594 647225344 141005 4294967295 134512640 135987407 3221224560 3221203888 134537540 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9022/statm): 158014 141005 364 364 0 157650 0
[pid=9022] vsize: 632056
Current children cumulated CPU time (s) 89.87
Current children cumulated vsize (Kb) 632056



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+93.2031 s]
Raw data (loadavg): 0.98 0.95 0.92 1/55 9022
Raw data (/proc/9022/stat): 9022 (pb2sat) T 9021 9022 4004 0 -1 0 241196 0 0 0 8771 534 0 0 25 0 1 0 21757594 943796224 150951 4294967295 134512640 135987407 3221224560 3221200108 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/9022/statm): 230419 150951 364 364 0 230055 0
[pid=9022] vsize: 921676
Current children cumulated CPU time (s) 93.05
Current children cumulated vsize (Kb) 921676

Sending SIGTERM to -9022
Sleeping 2 seconds
Sending SIGKILL to -9022
One traced child (pid=9022) 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): 95.5191
CPU time (s): 93.3758
CPU user time (s): 87.7207
CPU system time (s): 5.65514
CPU usage (%): 97.7561
Max. virtual memory (cumulated for all children) (Kb): 921676

Verifier Data

ERROR: no interpretation found !