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-noswot.opb
MD5SUM5e1386c5f1b92751761827178ffb8fa8
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -41
Optimality of the best value was proved YES
Number of terms in the objective function 425
Biggest coefficient in the objective function 65536
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 3276775
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 1048576000000000
Number of bits of the biggest number in a constraint 50
Biggest sum of numbers in a constraint 5104598755679562
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark145.886
Number of variables1340
Total number of constraints282
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)75
Number of constraints which are nor clauses,nor cardinality constraints207
Minimum length of a constraint1
Maximum length of a constraint425

Trace number 10096

Launcher Data

LAUNCH ON wulflinc20 THE 2005-09-23 16:58:17 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8853 boxname=wulflinc20 idbench=649 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  5e1386c5f1b92751761827178ffb8fa8  /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-noswot.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-noswot.opb
IDLAUNCH: 8853
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.012
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		: 451.012
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:        935052 kB
Buffers:         11972 kB
Cached:          70648 kB
SwapCached:          0 kB
Active:          46004 kB
Inactive:        39568 kB
HighTotal:      131008 kB
HighFree:        55944 kB
LowTotal:       903652 kB
LowFree:        879108 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8580 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:59:58 (client local time) WITH STATUS 1 IN 100.59 SECONDS
stats: 8853 7 100.59 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/8521/stat): 8521 (pb2sat) R 8520 8521 4059 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21807727 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8521/statm): 373 2 364 364 0 9 0
[pid=8521] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-noswot.opb

[startup+10.0019 s]
Raw data (loadavg): 0.92 0.95 0.91 2/55 8521
Raw data (/proc/8521/stat): 8521 (pb2sat) R 8520 8521 4059 0 -1 0 31596 0 0 0 931 64 0 0 25 0 1 0 21807727 99254272 20440 4294967295 134512640 135987407 3221224560 3221194672 134856412 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8521/statm): 24232 20440 364 364 0 23868 0
[pid=8521] vsize: 96928
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 96928

[startup+20.0026 s]
Raw data (loadavg): 0.93 0.95 0.91 2/55 8521
Raw data (/proc/8521/stat): 8521 (pb2sat) R 8520 8521 4059 0 -1 0 62725 0 0 0 1865 127 0 0 25 0 1 0 21807727 196374528 40338 4294967295 134512640 135987407 3221224560 3221204188 134637020 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8521/statm): 47943 40338 364 364 0 47579 0
[pid=8521] vsize: 191772
Current children cumulated CPU time (s) 19.92
Current children cumulated vsize (Kb) 191772

[startup+30.0034 s]
Raw data (loadavg): 0.94 0.95 0.91 2/55 8521
Raw data (/proc/8521/stat): 8521 (pb2sat) R 8520 8521 4059 0 -1 0 105840 0 0 0 2779 210 0 0 25 0 1 0 21807727 330256384 61240 4294967295 134512640 135987407 3221224560 3221196716 134865856 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8521/statm): 80629 61240 364 364 0 80265 0
[pid=8521] vsize: 322516
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 322516

[startup+40.0031 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 8521
Raw data (/proc/8521/stat): 8521 (pb2sat) R 8520 8521 4059 0 -1 0 124139 0 0 0 3739 247 0 0 25 0 1 0 21807727 389222400 79303 4294967295 134512640 135987407 3221224560 3221202204 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8521/statm): 95025 79303 364 364 0 94661 0
[pid=8521] vsize: 380100
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 380100

[startup+50.0038 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 8521
Raw data (/proc/8521/stat): 8521 (pb2sat) R 8520 8521 4059 0 -1 0 168260 0 0 0 4647 332 0 0 25 0 1 0 21807727 532111360 103758 4294967295 134512640 135987407 3221224560 3221200744 134865857 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8521/statm): 129910 103758 364 364 0 129546 0
[pid=8521] vsize: 519640
Current children cumulated CPU time (s) 49.79
Current children cumulated vsize (Kb) 519640

[startup+60.0046 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 8521
Raw data (/proc/8521/stat): 8521 (pb2sat) R 8520 8521 4059 0 -1 0 209531 0 0 0 5560 418 0 0 25 0 1 0 21807727 656023552 120236 4294967295 134512640 135987407 3221224560 3221206288 134560184 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8521/statm): 160162 120236 364 364 0 159798 0
[pid=8521] vsize: 640648
Current children cumulated CPU time (s) 59.78
Current children cumulated vsize (Kb) 640648

[startup+70.0053 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 8521
Raw data (/proc/8521/stat): 8521 (pb2sat) R 8520 8521 4059 0 -1 0 226001 0 0 0 6524 452 0 0 25 0 1 0 21807727 712421376 136494 4294967295 134512640 135987407 3221224560 3221203264 134559137 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8521/statm): 173931 136494 364 364 0 173567 0
[pid=8521] vsize: 695724
Current children cumulated CPU time (s) 69.76
Current children cumulated vsize (Kb) 695724

[startup+80.007 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 8521
Raw data (/proc/8521/stat): 8521 (pb2sat) R 8520 8521 4059 0 -1 0 245439 0 0 0 7484 491 0 0 25 0 1 0 21807727 739319808 155681 4294967295 134512640 135987407 3221224560 3221202352 134854891 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8521/statm): 180498 155681 364 364 0 180134 0
[pid=8521] vsize: 721992
Current children cumulated CPU time (s) 79.75
Current children cumulated vsize (Kb) 721992

[startup+90.0067 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 8521
Raw data (/proc/8521/stat): 8521 (pb2sat) R 8520 8521 4059 0 -1 0 264764 0 0 0 8444 529 0 0 25 0 1 0 21807727 766083072 174757 4294967295 134512640 135987407 3221224560 3221203184 134639896 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8521/statm): 187032 174757 364 364 0 186668 0
[pid=8521] vsize: 748128
Current children cumulated CPU time (s) 89.73
Current children cumulated vsize (Kb) 748128

[startup+100.006 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 8521
Raw data (/proc/8521/stat): 8521 (pb2sat) R 8520 8521 4059 0 -1 0 271384 0 0 0 9415 555 0 0 25 0 1 0 21807727 465256448 113061 4294967295 134512640 135987407 3221224560 3221223408 134884004 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8521/statm): 113588 113061 364 364 0 113224 0
[pid=8521] vsize: 454352
Current children cumulated CPU time (s) 99.7
Current children cumulated vsize (Kb) 454352
One traced child (pid=8521) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 100.883
CPU time (s): 100.59
CPU user time (s): 94.7896
CPU system time (s): 5.80012
CPU usage (%): 99.7097
Max. virtual memory (cumulated for all children) (Kb): 748128

Verifier Data

ERROR: no interpretation found !