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/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-neos4.opb
MD5SUM30059c64e21a2e364f81efb4e08403c5
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 78981
Biggest coefficient in the objective function 1400338009135513600000000
Number of bits for the biggest coefficient in the objective function 81
Sum of the numbers in the objective function 357842136202818385868750848
Number of bits of the sum of numbers in the objective function 89
Biggest number in a constraint 1400338009135513600000000
Number of bits of the biggest number in a constraint 81
Biggest sum of numbers in a constraint 357842136202818385868750848
Number of bits of the biggest sum of numbers89
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark21.7407
Number of variables151216
Total number of constraints56505
Number of constraints which are clauses32142
Number of constraints which are cardinality constraints (but not clauses)17175
Number of constraints which are nor clauses,nor cardinality constraints7188
Minimum length of a constraint1
Maximum length of a constraint752

Trace number 10563

Launcher Data

LAUNCH ON wulflinc27 THE 2005-09-23 19:01:00 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9319 boxname=wulflinc27 idbench=1115 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  30059c64e21a2e364f81efb4e08403c5  /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-neos4.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-neos4.opb
IDLAUNCH: 9319
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.039
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		: 451.039
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:        915136 kB
Buffers:         12692 kB
Cached:          89376 kB
SwapCached:          0 kB
Active:          57604 kB
Inactive:        47356 kB
HighTotal:      131008 kB
HighFree:        37324 kB
LowTotal:       903652 kB
LowFree:        877812 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              32 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             9004 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 19:05:17 (client local time) WITH STATUS 0 IN 254.72 SECONDS
stats: 9319 7 254.72 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/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22507403 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 373 2 364 364 0 9 0
[pid=11526] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-neos4.opb

[startup+10.0023 s]
Raw data (loadavg): 0.87 0.95 0.93 2/55 11528
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 2374 0 0 0 992 6 0 0 25 0 1 0 22507403 9097216 1690 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 2221 1690 364 364 0 1857 0
[pid=11526] vsize: 8884
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 8884

[startup+20.0031 s]
Raw data (loadavg): 0.89 0.95 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 2930 0 0 0 1990 7 0 0 25 0 1 0 22507403 10448896 2237 4294967295 134512640 135987407 3221224560 3221221872 134555861 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 2551 2237 364 364 0 2187 0
[pid=11526] vsize: 10204
Current children cumulated CPU time (s) 19.97
Current children cumulated vsize (Kb) 10204

[startup+30.0029 s]
Raw data (loadavg): 0.90 0.95 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 4336 0 0 0 2987 10 0 0 25 0 1 0 22507403 15495168 2898 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 3783 2898 364 364 0 3419 0
[pid=11526] vsize: 15132
Current children cumulated CPU time (s) 29.97
Current children cumulated vsize (Kb) 15132

[startup+40.0037 s]
Raw data (loadavg): 0.92 0.95 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 4620 0 0 0 3986 11 0 0 25 0 1 0 22507403 16171008 3177 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 3948 3177 364 364 0 3584 0
[pid=11526] vsize: 15792
Current children cumulated CPU time (s) 39.97
Current children cumulated vsize (Kb) 15792

[startup+50.0046 s]
Raw data (loadavg): 0.93 0.96 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 4883 0 0 0 4985 12 0 0 25 0 1 0 22507403 16846848 3435 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 4113 3435 364 364 0 3749 0
[pid=11526] vsize: 16452
Current children cumulated CPU time (s) 49.97
Current children cumulated vsize (Kb) 16452

[startup+60.0044 s]
Raw data (loadavg): 0.94 0.96 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 5115 0 0 0 5984 13 0 0 25 0 1 0 22507403 17522688 3664 4294967295 134512640 135987407 3221224560 3221221872 134555863 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 4278 3664 364 364 0 3914 0
[pid=11526] vsize: 17112
Current children cumulated CPU time (s) 59.97
Current children cumulated vsize (Kb) 17112

[startup+70.0053 s]
Raw data (loadavg): 0.95 0.96 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 5326 0 0 0 6984 13 0 0 25 0 1 0 22507403 18063360 3871 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 4410 3871 364 364 0 4046 0
[pid=11526] vsize: 17640
Current children cumulated CPU time (s) 69.97
Current children cumulated vsize (Kb) 17640

[startup+80.0061 s]
Raw data (loadavg): 0.96 0.96 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 5520 0 0 0 7983 14 0 0 25 0 1 0 22507403 18468864 4062 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 4509 4062 364 364 0 4145 0
[pid=11526] vsize: 18036
Current children cumulated CPU time (s) 79.97
Current children cumulated vsize (Kb) 18036

[startup+90.0059 s]
Raw data (loadavg): 0.96 0.96 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 5701 0 0 0 8983 15 0 0 25 0 1 0 22507403 19009536 4240 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 4641 4240 364 364 0 4277 0
[pid=11526] vsize: 18564
Current children cumulated CPU time (s) 89.98
Current children cumulated vsize (Kb) 18564

[startup+100.007 s]
Raw data (loadavg): 0.97 0.96 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 5872 0 0 0 9982 15 0 0 25 0 1 0 22507403 19415040 4408 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 4740 4408 364 364 0 4376 0
[pid=11526] vsize: 18960
Current children cumulated CPU time (s) 99.97
Current children cumulated vsize (Kb) 18960

[startup+110.008 s]
Raw data (loadavg): 0.97 0.96 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 8270 0 0 0 10977 20 0 0 25 0 1 0 22507403 28696576 5329 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 7006 5329 364 364 0 6642 0
[pid=11526] vsize: 28024
Current children cumulated CPU time (s) 109.97
Current children cumulated vsize (Kb) 28024

[startup+120.008 s]
Raw data (loadavg): 0.98 0.96 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 8329 0 0 0 11977 20 0 0 25 0 1 0 22507403 28696576 5385 4294967295 134512640 135987407 3221224560 3221221872 134555861 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 7006 5385 364 364 0 6642 0
[pid=11526] vsize: 28024
Current children cumulated CPU time (s) 119.97
Current children cumulated vsize (Kb) 28024

[startup+130.008 s]
Raw data (loadavg): 0.98 0.96 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 8412 0 0 0 12977 21 0 0 25 0 1 0 22507403 28831744 5466 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 7039 5466 364 364 0 6675 0
[pid=11526] vsize: 28156
Current children cumulated CPU time (s) 129.98
Current children cumulated vsize (Kb) 28156

[startup+140.008 s]
Raw data (loadavg): 0.98 0.96 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 8537 0 0 0 13976 21 0 0 25 0 1 0 22507403 29102080 5589 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 7105 5589 364 364 0 6741 0
[pid=11526] vsize: 28420
Current children cumulated CPU time (s) 139.97
Current children cumulated vsize (Kb) 28420

[startup+150.009 s]
Raw data (loadavg): 0.98 0.97 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 8661 0 0 0 14976 21 0 0 25 0 1 0 22507403 29372416 5710 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 7171 5710 364 364 0 6807 0
[pid=11526] vsize: 28684
Current children cumulated CPU time (s) 149.97
Current children cumulated vsize (Kb) 28684

[startup+160.01 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 8778 0 0 0 15976 21 0 0 25 0 1 0 22507403 29642752 5825 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 7237 5825 364 364 0 6873 0
[pid=11526] vsize: 28948
Current children cumulated CPU time (s) 159.97
Current children cumulated vsize (Kb) 28948

[startup+170.011 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 12795 0 0 0 16963 33 0 0 25 0 1 0 22507403 40841216 9065 4294967295 134512640 135987407 3221224560 3221221372 134636953 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 9971 9065 364 364 0 9607 0
[pid=11526] vsize: 39884
Current children cumulated CPU time (s) 169.96
Current children cumulated vsize (Kb) 39884

[startup+180.011 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 43199 0 0 0 17893 99 0 0 25 0 1 0 22507403 129605632 26575 4294967295 134512640 135987407 3221224560 3221013568 134856622 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 31642 26575 364 364 0 31278 0
[pid=11526] vsize: 126568
Current children cumulated CPU time (s) 179.92
Current children cumulated vsize (Kb) 126568

[startup+190.011 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 77781 0 0 0 18813 177 0 0 25 0 1 0 22507403 238223360 45075 4294967295 134512640 135987407 3221224560 3221021456 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 58160 45075 364 364 0 57796 0
[pid=11526] vsize: 232640
Current children cumulated CPU time (s) 189.9
Current children cumulated vsize (Kb) 232640

[startup+200.012 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 104473 0 0 0 19750 240 0 0 25 0 1 0 22507403 326164480 59240 4294967295 134512640 135987407 3221224560 3221050636 134669188 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 79630 59240 364 364 0 79266 0
[pid=11526] vsize: 318520
Current children cumulated CPU time (s) 199.9
Current children cumulated vsize (Kb) 318520

[startup+210.012 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 132449 0 0 0 20689 300 0 0 25 0 1 0 22507403 494862336 86532 4294967295 134512640 135987407 3221224560 3221129072 134854925 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 120816 86532 364 364 0 120452 0
[pid=11526] vsize: 483264
Current children cumulated CPU time (s) 209.89
Current children cumulated vsize (Kb) 483264

[startup+220.014 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 185941 0 0 0 21575 412 0 0 25 0 1 0 22507403 560177152 96259 4294967295 134512640 135987407 3221224560 3221119772 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 136762 96259 364 364 0 136398 0
[pid=11526] vsize: 547048
Current children cumulated CPU time (s) 219.87
Current children cumulated vsize (Kb) 547048

[startup+230.014 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 200410 0 0 0 22540 447 0 0 25 0 1 0 22507403 597921792 110489 4294967295 134512640 135987407 3221224560 3221126960 134887865 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 145977 110489 364 364 0 145613 0
[pid=11526] vsize: 583908
Current children cumulated CPU time (s) 229.87
Current children cumulated vsize (Kb) 583908

[startup+240.014 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 217028 0 0 0 23498 488 0 0 25 0 1 0 22507403 602517504 126832 4294967295 134512640 135987407 3221224560 3221052368 134560723 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 147099 126832 364 364 0 146735 0
[pid=11526] vsize: 588396
Current children cumulated CPU time (s) 239.86
Current children cumulated vsize (Kb) 588396

[startup+250.015 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) R 11525 11526 4005 0 -1 0 230479 0 0 0 24464 522 0 0 25 0 1 0 22507403 656498688 140062 4294967295 134512640 135987407 3221224560 3221151024 134557147 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11526/statm): 160278 140062 364 364 0 159914 0
[pid=11526] vsize: 641112
Current children cumulated CPU time (s) 249.86
Current children cumulated vsize (Kb) 641112



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+254.425 s]
Raw data (loadavg): 0.99 0.97 0.93 1/55 11530
Raw data (/proc/11526/stat): 11526 (pb2sat) T 11525 11526 4005 0 -1 0 238966 0 0 0 24883 543 0 0 25 0 1 0 22507403 949284864 148431 4294967295 134512640 135987407 3221224560 3221145120 135544035 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/11526/statm): 231759 148431 364 364 0 231395 0
[pid=11526] vsize: 927036
Current children cumulated CPU time (s) 254.26
Current children cumulated vsize (Kb) 927036

Sending SIGTERM to -11526
Sleeping 2 seconds
Sending SIGKILL to -11526
One traced child (pid=11526) 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): 256.736
CPU time (s): 254.72
CPU user time (s): 248.976
CPU system time (s): 5.74413
CPU usage (%): 99.2149
Max. virtual memory (cumulated for all children) (Kb): 927036

Verifier Data

ERROR: no interpretation found !