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-mkc1.opb
MD5SUMaa2dd2336a4c1c55f4fb3e1e24927c56
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 25306
Biggest coefficient in the objective function 20480000
Number of bits for the biggest coefficient in the objective function 25
Sum of the numbers in the objective function 56454927307
Number of bits of the sum of numbers in the objective function 36
Biggest number in a constraint 536870912000
Number of bits of the biggest number in a constraint 39
Biggest sum of numbers in a constraint 1129539816832
Number of bits of the biggest sum of numbers41
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables27743
Total number of constraints8734
Number of constraints which are clauses712
Number of constraints which are cardinality constraints (but not clauses)3174
Number of constraints which are nor clauses,nor cardinality constraints4848
Minimum length of a constraint1
Maximum length of a constraint25072

Trace number 10169

Launcher Data

LAUNCH ON wulflinc4 THE 2005-09-23 17:22:00 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8920 boxname=wulflinc4 idbench=716 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  aa2dd2336a4c1c55f4fb3e1e24927c56  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-mkc1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-mkc1.opb
IDLAUNCH: 8920
/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:        929100 kB
Buffers:         12556 kB
Cached:          75640 kB
SwapCached:          0 kB
Active:          47320 kB
Inactive:        43792 kB
HighTotal:      131008 kB
HighFree:        51072 kB
LowTotal:       903652 kB
LowFree:        878028 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8880 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:24:03 (client local time) WITH STATUS 1 IN 122.263 SECONDS
stats: 8920 7 122.263 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/9583/stat): 9583 (pb2sat) R 9582 9583 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21967563 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9583/statm): 373 2 364 364 0 9 0
[pid=9583] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-mkc1.opb

[startup+10.0028 s]
Raw data (loadavg): 0.93 0.97 0.97 2/55 9583
Raw data (/proc/9583/stat): 9583 (pb2sat) R 9582 9583 4060 0 -1 0 2575 0 0 0 991 7 0 0 25 0 1 0 21967563 9641984 1888 4294967295 134512640 135987407 3221224560 3221221872 134555852 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9583/statm): 2354 1888 364 364 0 1990 0
[pid=9583] vsize: 9416
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 9416

[startup+20.0037 s]
Raw data (loadavg): 0.94 0.97 0.97 2/55 9583
Raw data (/proc/9583/stat): 9583 (pb2sat) R 9582 9583 4060 0 -1 0 6159 0 0 0 1982 16 0 0 25 0 1 0 21967563 20221952 4041 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9583/statm): 4937 4041 364 364 0 4573 0
[pid=9583] vsize: 19748
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 19748

[startup+30.0035 s]
Raw data (loadavg): 0.95 0.97 0.97 2/55 9583
Raw data (/proc/9583/stat): 9583 (pb2sat) R 9582 9583 4060 0 -1 0 27970 0 0 0 2928 67 0 0 25 0 1 0 21967563 86880256 19733 4294967295 134512640 135987407 3221224560 3212800096 134639028 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9583/statm): 21211 19733 364 364 0 20847 0
[pid=9583] vsize: 84844
Current children cumulated CPU time (s) 29.95
Current children cumulated vsize (Kb) 84844

[startup+40.0044 s]
Raw data (loadavg): 0.96 0.97 0.97 2/55 9583
Raw data (/proc/9583/stat): 9583 (pb2sat) R 9582 9583 4060 0 -1 0 62069 0 0 0 3851 142 0 0 25 0 1 0 21967563 205844480 39525 4294967295 134512640 135987407 3221224560 3212928320 134877726 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9583/statm): 50255 39525 364 364 0 49891 0
[pid=9583] vsize: 201020
Current children cumulated CPU time (s) 39.93
Current children cumulated vsize (Kb) 201020

[startup+50.0053 s]
Raw data (loadavg): 0.96 0.97 0.97 2/55 9583
Raw data (/proc/9583/stat): 9583 (pb2sat) R 9582 9583 4060 0 -1 0 94096 0 0 0 4783 205 0 0 25 0 1 0 21967563 290631680 61601 4294967295 134512640 135987407 3221224560 3213353520 134640450 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9583/statm): 70955 61601 364 364 0 70591 0
[pid=9583] vsize: 283820
Current children cumulated CPU time (s) 49.88
Current children cumulated vsize (Kb) 283820

[startup+60.0061 s]
Raw data (loadavg): 0.97 0.97 0.97 2/55 9583
Raw data (/proc/9583/stat): 9583 (pb2sat) R 9582 9583 4060 0 -1 0 123772 0 0 0 5710 276 0 0 25 0 1 0 21967563 400338944 78764 4294967295 134512640 135987407 3221224560 3212964908 134892452 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9583/statm): 97739 78764 364 364 0 97375 0
[pid=9583] vsize: 390956
Current children cumulated CPU time (s) 59.86
Current children cumulated vsize (Kb) 390956

[startup+70.007 s]
Raw data (loadavg): 0.97 0.97 0.97 2/55 9583
Raw data (/proc/9583/stat): 9583 (pb2sat) R 9582 9583 4060 0 -1 0 168103 0 0 0 6611 369 0 0 25 0 1 0 21967563 543059968 103467 4294967295 134512640 135987407 3221224560 3212940268 135479970 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9583/statm): 132583 103467 364 364 0 132219 0
[pid=9583] vsize: 530332
Current children cumulated CPU time (s) 69.8
Current children cumulated vsize (Kb) 530332

[startup+80.0078 s]
Raw data (loadavg): 0.98 0.97 0.97 2/55 9583
Raw data (/proc/9583/stat): 9583 (pb2sat) R 9582 9583 4060 0 -1 0 187552 0 0 0 7570 408 0 0 25 0 1 0 21967563 570228736 122655 4294967295 134512640 135987407 3221224560 3212821092 135480418 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9583/statm): 139216 122655 364 364 0 138852 0
[pid=9583] vsize: 556864
Current children cumulated CPU time (s) 79.78
Current children cumulated vsize (Kb) 556864

[startup+90.0087 s]
Raw data (loadavg): 0.98 0.97 0.97 2/55 9583
Raw data (/proc/9583/stat): 9583 (pb2sat) R 9582 9583 4060 0 -1 0 228847 0 0 0 8477 500 0 0 25 0 1 0 21967563 694681600 139159 4294967295 134512640 135987407 3221224560 3212846868 135479957 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9583/statm): 169600 139159 364 364 0 169236 0
[pid=9583] vsize: 678400
Current children cumulated CPU time (s) 89.77
Current children cumulated vsize (Kb) 678400

[startup+100.009 s]
Raw data (loadavg): 0.98 0.97 0.97 2/55 9583
Raw data (/proc/9583/stat): 9583 (pb2sat) R 9582 9583 4060 0 -1 0 245489 0 0 0 9439 535 0 0 25 0 1 0 21967563 752709632 155586 4294967295 134512640 135987407 3221224560 3213039584 134856397 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9583/statm): 183767 155586 364 364 0 183403 0
[pid=9583] vsize: 735068
Current children cumulated CPU time (s) 99.74
Current children cumulated vsize (Kb) 735068

[startup+110.009 s]
Raw data (loadavg): 0.98 0.97 0.97 2/55 9583
Raw data (/proc/9583/stat): 9583 (pb2sat) R 9582 9583 4060 0 -1 0 265826 0 0 0 10395 577 0 0 25 0 1 0 21967563 784760832 175674 4294967295 134512640 135987407 3221224560 3212841148 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9583/statm): 191592 175674 364 364 0 191228 0
[pid=9583] vsize: 766368
Current children cumulated CPU time (s) 109.72
Current children cumulated vsize (Kb) 766368

[startup+120.01 s]
Raw data (loadavg): 0.99 0.97 0.97 2/55 9583
Raw data (/proc/9583/stat): 9583 (pb2sat) R 9582 9583 4060 0 -1 0 271083 0 0 0 11370 600 0 0 25 0 1 0 21967563 484130816 117639 4294967295 134512640 135987407 3221224560 3221223224 135477294 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9583/statm): 118196 117639 364 364 0 117832 0
[pid=9583] vsize: 472784
Current children cumulated CPU time (s) 119.7
Current children cumulated vsize (Kb) 472784
One traced child (pid=9583) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 122.565
CPU time (s): 122.263
CPU user time (s): 116.012
CPU system time (s): 6.25105
CPU usage (%): 99.754
Max. virtual memory (cumulated for all children) (Kb): 766368

Verifier Data

ERROR: no interpretation found !