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/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos3.opb
MD5SUMaa121475b5e53120a1d24de3f0361b26
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 155
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 10737418235
Number of bits of the sum of numbers in the objective function 34
Biggest number in a constraint 2454208150643933184000
Number of bits of the biggest number in a constraint 72
Biggest sum of numbers in a constraint 289272765430218954375168
Number of bits of the biggest sum of numbers78
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables42220
Total number of constraints2841
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)1377
Number of constraints which are nor clauses,nor cardinality constraints1464
Minimum length of a constraint1
Maximum length of a constraint4780

Trace number 10175

Launcher Data

LAUNCH ON wulflinc12 THE 2005-09-23 17:24:11 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8933 boxname=wulflinc12 idbench=729 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  aa121475b5e53120a1d24de3f0361b26  /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-20-10-neos3.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-20-10-neos3.opb
IDLAUNCH: 8933
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        943092 kB
Buffers:          6092 kB
Cached:          65716 kB
SwapCached:          0 kB
Active:          21660 kB
Inactive:        53076 kB
HighTotal:      131008 kB
HighFree:        83216 kB
LowTotal:       903652 kB
LowFree:        859876 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11240 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:25:51 (client local time) WITH STATUS 1 IN 99.9808 SECONDS
stats: 8933 7 99.9808 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc

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/9429/stat): 9429 (pb2sat) R 9428 9429 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21964159 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9429/statm): 373 2 364 364 0 9 0
[pid=9429] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-20-10-neos3.opb

[startup+10.0021 s]
Raw data (loadavg): 0.91 0.94 0.96 2/55 9429
Raw data (/proc/9429/stat): 9429 (pb2sat) R 9428 9429 4060 0 -1 0 30297 0 0 0 927 68 0 0 25 0 1 0 21964159 98926592 19110 4294967295 134512640 135987407 3221224560 3220418956 134636997 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9429/statm): 24152 19110 364 364 0 23788 0
[pid=9429] vsize: 96608
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 96608

[startup+20.004 s]
Raw data (loadavg): 0.92 0.94 0.96 2/55 9429
Raw data (/proc/9429/stat): 9429 (pb2sat) R 9428 9429 4060 0 -1 0 60914 0 0 0 1858 134 0 0 25 0 1 0 21964159 195518464 38205 4294967295 134512640 135987407 3221224560 3220420036 134558845 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9429/statm): 47734 38205 364 364 0 47370 0
[pid=9429] vsize: 190936
Current children cumulated CPU time (s) 19.92
Current children cumulated vsize (Kb) 190936

[startup+30.0048 s]
Raw data (loadavg): 0.93 0.94 0.96 2/55 9429
Raw data (/proc/9429/stat): 9429 (pb2sat) R 9428 9429 4060 0 -1 0 93165 0 0 0 2791 196 0 0 25 0 1 0 21964159 280129536 59448 4294967295 134512640 135987407 3221224560 3220419360 134559678 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9429/statm): 68391 59448 364 364 0 68027 0
[pid=9429] vsize: 273564
Current children cumulated CPU time (s) 29.87
Current children cumulated vsize (Kb) 273564

[startup+40.0046 s]
Raw data (loadavg): 0.94 0.94 0.96 2/55 9429
Raw data (/proc/9429/stat): 9429 (pb2sat) R 9428 9429 4060 0 -1 0 121908 0 0 0 3732 254 0 0 25 0 1 0 21964159 387805184 75681 4294967295 134512640 135987407 3221224560 3220420000 134537371 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9429/statm): 94679 75681 364 364 0 94315 0
[pid=9429] vsize: 378716
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 378716

[startup+50.0055 s]
Raw data (loadavg): 1.02 0.96 0.97 2/55 9429
Raw data (/proc/9429/stat): 9429 (pb2sat) R 9428 9429 4060 0 -1 0 166882 0 0 0 4641 340 0 0 25 0 1 0 21964159 528265216 98589 4294967295 134512640 135987407 3221224560 3220418832 134864337 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9429/statm): 128971 98589 364 364 0 128607 0
[pid=9429] vsize: 515884
Current children cumulated CPU time (s) 49.81
Current children cumulated vsize (Kb) 515884

[startup+60.0053 s]
Raw data (loadavg): 1.02 0.96 0.97 2/55 9429
Raw data (/proc/9429/stat): 9429 (pb2sat) R 9428 9429 4060 0 -1 0 186027 0 0 0 5603 375 0 0 25 0 1 0 21964159 555974656 117477 4294967295 134512640 135987407 3221224560 3220418224 134533897 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9429/statm): 135736 117477 364 364 0 135372 0
[pid=9429] vsize: 542944
Current children cumulated CPU time (s) 59.78
Current children cumulated vsize (Kb) 542944

[startup+70.0062 s]
Raw data (loadavg): 1.02 0.96 0.97 2/55 9429
Raw data (/proc/9429/stat): 9429 (pb2sat) R 9428 9429 4060 0 -1 0 226798 0 0 0 6515 462 0 0 25 0 1 0 21964159 679886848 133454 4294967295 134512640 135987407 3221224560 3220421308 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9429/statm): 165988 133454 364 364 0 165624 0
[pid=9429] vsize: 663952
Current children cumulated CPU time (s) 69.77
Current children cumulated vsize (Kb) 663952

[startup+80.007 s]
Raw data (loadavg): 1.01 0.96 0.97 2/55 9429
Raw data (/proc/9429/stat): 9429 (pb2sat) R 9428 9429 4060 0 -1 0 242694 0 0 0 7483 491 0 0 25 0 1 0 21964159 736419840 149137 4294967295 134512640 135987407 3221224560 3220423024 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9429/statm): 179790 149137 364 364 0 179426 0
[pid=9429] vsize: 719160
Current children cumulated CPU time (s) 79.74
Current children cumulated vsize (Kb) 719160

[startup+90.0068 s]
Raw data (loadavg): 1.01 0.96 0.97 2/55 9429
Raw data (/proc/9429/stat): 9429 (pb2sat) R 9428 9429 4060 0 -1 0 261685 0 0 0 8446 527 0 0 25 0 1 0 21964159 764645376 167653 4294967295 134512640 135987407 3221224560 3220420672 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9429/statm): 186681 167653 364 364 0 186317 0
[pid=9429] vsize: 746724
Current children cumulated CPU time (s) 89.73
Current children cumulated vsize (Kb) 746724

[startup+100.008 s]
Raw data (loadavg): 1.01 0.96 0.97 2/55 9429
Raw data (/proc/9429/stat): 9429 (pb2sat) R 9428 9429 4060 0 -1 0 267221 0 0 0 9423 549 0 0 25 0 1 0 21964159 453324800 110209 4294967295 134512640 135987407 3221224560 3221223384 134893009 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9429/statm): 110675 110209 364 364 0 110311 0
[pid=9429] vsize: 442700
Current children cumulated CPU time (s) 99.72
Current children cumulated vsize (Kb) 442700
One traced child (pid=9429) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 100.263
CPU time (s): 99.9808
CPU user time (s): 94.2547
CPU system time (s): 5.72613
CPU usage (%): 99.7185
Max. virtual memory (cumulated for all children) (Kb): 746724

Verifier Data

ERROR: no interpretation found !