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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-pilot87.opb
MD5SUM867c3fb6ec2e95bf03283295db1251ec
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 11677
Biggest coefficient in the objective function 1769666112389120
Number of bits for the biggest coefficient in the objective function 51
Sum of the numbers in the objective function 75483970843122814
Number of bits of the sum of numbers in the objective function 57
Biggest number in a constraint 536870912000000000
Number of bits of the biggest number in a constraint 59
Biggest sum of numbers in a constraint 1323519003456940521
Number of bits of the biggest sum of numbers61
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark38.3472
Number of variables113921
Total number of constraints3645
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints3645
Minimum length of a constraint10
Maximum length of a constraint8647

Trace number 9948

Launcher Data

LAUNCH ON wulflinc13 THE 2005-09-23 16:15:13 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8695 boxname=wulflinc13 idbench=491 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  867c3fb6ec2e95bf03283295db1251ec  /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-pilot87.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-pilot87.opb
IDLAUNCH: 8695
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.180
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		: 451.180
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:        886412 kB
Buffers:         14032 kB
Cached:         115372 kB
SwapCached:          0 kB
Active:          77556 kB
Inactive:        54744 kB
HighTotal:      131008 kB
HighFree:        12040 kB
LowTotal:       903652 kB
LowFree:        874372 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10364 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:17:01 (client local time) WITH STATUS 1 IN 107.474 SECONDS
stats: 8695 7 107.474 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/7833/stat): 7833 (pb2sat) R 7832 7833 4060 0 -1 0 18 0 0 0 0 0 0 0 22 0 1 0 21549059 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/7833/statm): 373 2 364 364 0 9 0
[pid=7833] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-pilot87.opb

[startup+10.0027 s]
Raw data (loadavg): 0.88 0.91 0.92 2/55 7833
Raw data (/proc/7833/stat): 7833 (pb2sat) R 7832 7833 4060 0 -1 0 23099 0 0 0 944 52 0 0 25 0 1 0 21549059 71208960 15044 4294967295 134512640 135987407 3221224560 3220980764 135478553 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7833/statm): 17385 15044 364 364 0 17021 0
[pid=7833] vsize: 69540
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 69540

[startup+20.0034 s]
Raw data (loadavg): 0.90 0.92 0.92 2/55 7833
Raw data (/proc/7833/stat): 7833 (pb2sat) R 7832 7833 4060 0 -1 0 57270 0 0 0 1877 116 0 0 25 0 1 0 21549059 188141568 34926 4294967295 134512640 135987407 3221224560 3220983656 135487951 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7833/statm): 45933 34926 364 364 0 45569 0
[pid=7833] vsize: 183732
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 183732

[startup+30.003 s]
Raw data (loadavg): 0.91 0.92 0.92 2/55 7833
Raw data (/proc/7833/stat): 7833 (pb2sat) R 7832 7833 4060 0 -1 0 100704 0 0 0 2789 199 0 0 25 0 1 0 21549059 372379648 68439 4294967295 134512640 135987407 3221224560 3220997296 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7833/statm): 90913 68443 364 364 0 90549 0
[pid=7833] vsize: 363652
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 363652

[startup+40.0037 s]
Raw data (loadavg): 0.93 0.92 0.92 2/55 7833
Raw data (/proc/7833/stat): 7833 (pb2sat) R 7832 7833 4060 0 -1 0 120450 0 0 0 3745 241 0 0 25 0 1 0 21549059 381009920 75665 4294967295 134512640 135987407 3221224560 3221000464 134856581 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7833/statm): 93020 75665 364 364 0 92656 0
[pid=7833] vsize: 372080
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 372080

[startup+50.0033 s]
Raw data (loadavg): 0.94 0.92 0.92 2/55 7833
Raw data (/proc/7833/stat): 7833 (pb2sat) R 7832 7833 4060 0 -1 0 147239 0 0 0 4687 295 0 0 25 0 1 0 21549059 561197056 101972 4294967295 134512640 135987407 3221224560 3221002480 134856702 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7833/statm): 137011 101974 364 364 0 136647 0
[pid=7833] vsize: 548044
Current children cumulated CPU time (s) 49.82
Current children cumulated vsize (Kb) 548044

[startup+60.004 s]
Raw data (loadavg): 0.95 0.92 0.92 2/55 7833
Raw data (/proc/7833/stat): 7833 (pb2sat) R 7832 7833 4060 0 -1 0 207465 0 0 0 5558 421 0 0 25 0 1 0 21549059 647598080 118275 4294967295 134512640 135987407 3221224560 3221008972 134636959 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7833/statm): 158105 118275 364 364 0 157741 0
[pid=7833] vsize: 632420
Current children cumulated CPU time (s) 59.79
Current children cumulated vsize (Kb) 632420

[startup+70.0047 s]
Raw data (loadavg): 0.95 0.93 0.92 2/55 7833
Raw data (/proc/7833/stat): 7833 (pb2sat) R 7832 7833 4060 0 -1 0 224517 0 0 0 6518 460 0 0 25 0 1 0 21549059 703320064 135121 4294967295 134512640 135987407 3221224560 3221030784 135477380 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7833/statm): 171709 135121 364 364 0 171345 0
[pid=7833] vsize: 686836
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 686836

[startup+80.0053 s]
Raw data (loadavg): 0.96 0.93 0.92 2/55 7833
Raw data (/proc/7833/stat): 7833 (pb2sat) R 7832 7833 4060 0 -1 0 244508 0 0 0 7472 502 0 0 25 0 1 0 21549059 729677824 154871 4294967295 134512640 135987407 3221224560 3221019052 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7833/statm): 178144 154871 364 364 0 177780 0
[pid=7833] vsize: 712576
Current children cumulated CPU time (s) 79.74
Current children cumulated vsize (Kb) 712576

[startup+90.006 s]
Raw data (loadavg): 0.97 0.93 0.92 2/55 7833
Raw data (/proc/7833/stat): 7833 (pb2sat) R 7832 7833 4060 0 -1 0 262703 0 0 0 8434 540 0 0 25 0 1 0 21549059 803799040 172846 4294967295 134512640 135987407 3221224560 3221029984 134877726 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7833/statm): 196240 172846 364 364 0 195876 0
[pid=7833] vsize: 784960
Current children cumulated CPU time (s) 89.74
Current children cumulated vsize (Kb) 784960

[startup+100.006 s]
Raw data (loadavg): 0.97 0.93 0.92 2/55 7833
Raw data (/proc/7833/stat): 7833 (pb2sat) R 7832 7833 4060 0 -1 0 280504 0 0 0 9396 576 0 0 25 0 1 0 21549059 828129280 190437 4294967295 134512640 135987407 3221224560 3221047500 135480614 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7833/statm): 202180 190437 364 364 0 201816 0
[pid=7833] vsize: 808720
Current children cumulated CPU time (s) 99.72
Current children cumulated vsize (Kb) 808720
One traced child (pid=7833) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 107.751
CPU time (s): 107.474
CPU user time (s): 101.297
CPU system time (s): 6.17706
CPU usage (%): 99.7428
Max. virtual memory (cumulated for all children) (Kb): 808720

Verifier Data

ERROR: no interpretation found !