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-bc1.opb
MD5SUM15670523760c6351fb6de07139f11abe
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 1073741824000000000000000000
Number of bits of the biggest number in a constraint 90
Biggest sum of numbers in a constraint 3221975665359866705114824704
Number of bits of the biggest sum of numbers92
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables27730
Total number of constraints3627
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)336
Number of constraints which are nor clauses,nor cardinality constraints3291
Minimum length of a constraint1
Maximum length of a constraint5701

Trace number 10187

Launcher Data

LAUNCH ON wulflinc23 THE 2005-09-23 17:31:07 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8946 boxname=wulflinc23 idbench=742 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  15670523760c6351fb6de07139f11abe  /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-bc1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-bc1.opb
IDLAUNCH: 8946
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.185
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		: 451.185
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:        799724 kB
Buffers:         14964 kB
Cached:         200800 kB
SwapCached:          0 kB
Active:         146500 kB
Inactive:        72180 kB
HighTotal:      131008 kB
HighFree:         3752 kB
LowTotal:       903652 kB
LowFree:        795972 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:               0 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10656 kB
Committed_AS:    63644 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:32:59 (client local time) WITH STATUS 1 IN 109.955 SECONDS
stats: 8946 7 109.955 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/9915/stat): 9915 (pb2sat) R 9914 9915 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22001271 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9915/statm): 373 2 364 364 0 9 0
[pid=9915] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-bc1.opb

[startup+10.0014 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 9915
Raw data (/proc/9915/stat): 9915 (pb2sat) R 9914 9915 4060 0 -1 0 29076 0 0 0 931 65 0 0 25 0 1 0 22001271 94978048 17946 4294967295 134512640 135987407 3221224560 3220639400 134802665 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9915/statm): 23188 17946 364 364 0 22824 0
[pid=9915] vsize: 92752
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 92752

[startup+20.002 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 9915
Raw data (/proc/9915/stat): 9915 (pb2sat) R 9914 9915 4060 0 -1 0 60002 0 0 0 1863 130 0 0 25 0 1 0 22001271 190263296 37660 4294967295 134512640 135987407 3221224560 3220721020 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9915/statm): 46451 37660 364 364 0 46087 0
[pid=9915] vsize: 185804
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 185804

[startup+30.0017 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 9915
Raw data (/proc/9915/stat): 9915 (pb2sat) R 9914 9915 4060 0 -1 0 103014 0 0 0 2772 218 0 0 25 0 1 0 22001271 322813952 58475 4294967295 134512640 135987407 3221224560 3220864880 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9915/statm): 78812 58475 364 364 0 78448 0
[pid=9915] vsize: 315248
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 315248

[startup+40.0013 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 9915
Raw data (/proc/9915/stat): 9915 (pb2sat) R 9914 9915 4060 0 -1 0 121034 0 0 0 3735 254 0 0 25 0 1 0 22001271 379617280 76278 4294967295 134512640 135987407 3221224560 3221188576 134931253 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9915/statm): 92680 76278 364 364 0 92316 0
[pid=9915] vsize: 370720
Current children cumulated CPU time (s) 39.89
Current children cumulated vsize (Kb) 370720

[startup+50.002 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 9915
Raw data (/proc/9915/stat): 9915 (pb2sat) R 9914 9915 4060 0 -1 0 136506 0 0 0 4701 287 0 0 25 0 1 0 22001271 397459456 91554 4294967295 134512640 135987407 3221224560 3220419040 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9915/statm): 97036 91554 364 364 0 96672 0
[pid=9915] vsize: 388144
Current children cumulated CPU time (s) 49.88
Current children cumulated vsize (Kb) 388144

[startup+60.0016 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 9915
Raw data (/proc/9915/stat): 9915 (pb2sat) R 9914 9915 4060 0 -1 0 199610 0 0 0 5564 419 0 0 25 0 1 0 22001271 623902720 110504 4294967295 134512640 135987407 3221224560 3220445248 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9915/statm): 152320 110504 364 364 0 151956 0
[pid=9915] vsize: 609280
Current children cumulated CPU time (s) 59.83
Current children cumulated vsize (Kb) 609280

[startup+70.0013 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 9915
Raw data (/proc/9915/stat): 9915 (pb2sat) R 9914 9915 4060 0 -1 0 210875 0 0 0 6540 444 0 0 25 0 1 0 22001271 657457152 121572 4294967295 134512640 135987407 3221224560 3220916260 134537591 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9915/statm): 160512 121573 364 364 0 160148 0
[pid=9915] vsize: 642048
Current children cumulated CPU time (s) 69.84
Current children cumulated vsize (Kb) 642048

[startup+80.0019 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 9915
Raw data (/proc/9915/stat): 9915 (pb2sat) R 9914 9915 4060 0 -1 0 225082 0 0 0 7509 475 0 0 25 0 1 0 22001271 661647360 135548 4294967295 134512640 135987407 3221224560 3220890924 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9915/statm): 161535 135549 364 364 0 161171 0
[pid=9915] vsize: 646140
Current children cumulated CPU time (s) 79.84
Current children cumulated vsize (Kb) 646140

[startup+90.0015 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 9915
Raw data (/proc/9915/stat): 9915 (pb2sat) R 9914 9915 4060 0 -1 0 240052 0 0 0 8473 510 0 0 25 0 1 0 22001271 669216768 150287 4294967295 134512640 135987407 3221224560 3221071696 134856473 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9915/statm): 163383 150287 364 364 0 163019 0
[pid=9915] vsize: 653532
Current children cumulated CPU time (s) 89.83
Current children cumulated vsize (Kb) 653532

[startup+100.002 s]
Raw data (loadavg): 0.99 0.96 0.91 2/55 9915
Raw data (/proc/9915/stat): 9915 (pb2sat) R 9914 9915 4060 0 -1 0 248831 0 0 0 9457 526 0 0 25 0 1 0 22001271 722984960 158917 4294967295 134512640 135987407 3221224560 3220233156 135479957 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9915/statm): 176510 158917 364 364 0 176146 0
[pid=9915] vsize: 706040
Current children cumulated CPU time (s) 99.83
Current children cumulated vsize (Kb) 706040

[startup+110.003 s]
Raw data (loadavg): 0.99 0.96 0.91 1/55 9915
Raw data (/proc/9915/stat): 9915 (pb2sat) T 9914 9915 4060 0 -1 0 255460 0 0 0 10417 565 0 0 25 0 1 0 22001271 221347840 53550 4294967295 134512640 135987407 3221224560 3221223420 135544177 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/9915/statm): 54040 53550 364 364 0 53676 0
[pid=9915] vsize: 216160
Current children cumulated CPU time (s) 109.82
Current children cumulated vsize (Kb) 216160
One traced child (pid=9915) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 110.127
CPU time (s): 109.955
CPU user time (s): 104.179
CPU system time (s): 5.77612
CPU usage (%): 99.8443
Max. virtual memory (cumulated for all children) (Kb): 706040

Verifier Data

ERROR: no interpretation found !