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/miplib/normalized-mps-v2-20-10-qiu.opb
MD5SUMd644054326940d86bc7f3576874ac5a9
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 7968
Biggest coefficient in the objective function 9098351345664
Number of bits for the biggest coefficient in the objective function 44
Sum of the numbers in the objective function 4803935111035752
Number of bits of the sum of numbers in the objective function 53
Biggest number in a constraint 9098351345664
Number of bits of the biggest number in a constraint 44
Biggest sum of numbers in a constraint 4803935111035752
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables23808
Total number of constraints1192
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 constraints1192
Minimum length of a constraint31
Maximum length of a constraint5940

Trace number 9985

Launcher Data

LAUNCH ON wulflinc15 THE 2005-09-23 16:22:08 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8741 boxname=wulflinc15 idbench=537 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  d644054326940d86bc7f3576874ac5a9  /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-20-10-qiu.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-20-10-qiu.opb
IDLAUNCH: 8741
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.045
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		: 451.045
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	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        899028 kB
Buffers:          3968 kB
Cached:         110748 kB
SwapCached:          0 kB
Active:          17456 kB
Inactive:       100140 kB
HighTotal:      131008 kB
HighFree:        81508 kB
LowTotal:       903652 kB
LowFree:        817520 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:             120 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:            12348 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:23:56 (client local time) WITH STATUS 1 IN 107.956 SECONDS
stats: 8741 7 107.956 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/7492/stat): 7492 (pb2sat) R 7491 7492 4057 0 -1 0 18 0 0 0 0 0 0 0 21 0 1 0 21588839 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/7492/statm): 373 10 364 364 0 9 0
[pid=7492] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-20-10-qiu.opb

[startup+10.0026 s]
Raw data (loadavg): 1.04 1.04 1.00 2/55 7492
Raw data (/proc/7492/stat): 7492 (pb2sat) R 7491 7492 4057 0 -1 0 21649 0 0 0 946 49 0 0 25 0 1 0 21588839 65359872 13625 4294967295 134512640 135987407 3221224560 3219344440 134636945 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7492/statm): 15957 13625 364 364 0 15593 0
[pid=7492] vsize: 63828
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 63828

[startup+20.0035 s]
Raw data (loadavg): 1.04 1.04 1.00 2/55 7492
Raw data (/proc/7492/stat): 7492 (pb2sat) R 7491 7492 4057 0 -1 0 55161 0 0 0 1867 125 0 0 25 0 1 0 21588839 180805632 32857 4294967295 134512640 135987407 3221224560 3219594304 134856487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7492/statm): 44142 32857 364 364 0 43778 0
[pid=7492] vsize: 176568
Current children cumulated CPU time (s) 19.92
Current children cumulated vsize (Kb) 176568

[startup+30.0043 s]
Raw data (loadavg): 1.03 1.04 1.00 2/55 7492
Raw data (/proc/7492/stat): 7492 (pb2sat) R 7491 7492 4057 0 -1 0 93736 0 0 0 2789 200 0 0 25 0 1 0 21588839 365314048 61510 4294967295 134512640 135987407 3221224560 3219736288 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7492/statm): 89188 61510 364 364 0 88824 0
[pid=7492] vsize: 356752
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 356752

[startup+40.0051 s]
Raw data (loadavg): 1.02 1.03 1.00 2/55 7492
Raw data (/proc/7492/stat): 7492 (pb2sat) R 7491 7492 4057 0 -1 0 117454 0 0 0 3728 259 0 0 25 0 1 0 21588839 371916800 72722 4294967295 134512640 135987407 3221224560 3220147996 135499901 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7492/statm): 90800 72722 364 364 0 90436 0
[pid=7492] vsize: 363200
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 363200

[startup+50.0059 s]
Raw data (loadavg): 1.02 1.03 1.00 2/55 7492
Raw data (/proc/7492/stat): 7492 (pb2sat) R 7491 7492 4057 0 -1 0 137911 0 0 0 4686 299 0 0 25 0 1 0 21588839 399626240 92939 4294967295 134512640 135987407 3221224560 3220261420 134637842 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7492/statm): 97565 92939 364 364 0 97201 0
[pid=7492] vsize: 390260
Current children cumulated CPU time (s) 49.85
Current children cumulated vsize (Kb) 390260

[startup+60.0057 s]
Raw data (loadavg): 1.02 1.03 1.00 2/55 7492
Raw data (/proc/7492/stat): 7492 (pb2sat) R 7491 7492 4057 0 -1 0 204097 0 0 0 5548 432 0 0 25 0 1 0 21588839 637829120 114967 4294967295 134512640 135987407 3221224560 3220405516 134636959 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7492/statm): 155720 114967 364 364 0 155356 0
[pid=7492] vsize: 622880
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 622880

[startup+70.0065 s]
Raw data (loadavg): 1.01 1.03 1.00 2/55 7492
Raw data (/proc/7492/stat): 7492 (pb2sat) R 7491 7492 4057 0 -1 0 221354 0 0 0 6507 472 0 0 25 0 1 0 21588839 693686272 132016 4294967295 134512640 135987407 3221224560 3220635632 134861784 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7492/statm): 169357 132016 364 364 0 168993 0
[pid=7492] vsize: 677428
Current children cumulated CPU time (s) 69.79
Current children cumulated vsize (Kb) 677428

[startup+80.0074 s]
Raw data (loadavg): 1.01 1.03 1.00 2/55 7492
Raw data (/proc/7492/stat): 7492 (pb2sat) R 7491 7492 4057 0 -1 0 241031 0 0 0 7461 515 0 0 25 0 1 0 21588839 718962688 151457 4294967295 134512640 135987407 3221224560 3220953280 134887776 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7492/statm): 175528 151457 364 364 0 175164 0
[pid=7492] vsize: 702112
Current children cumulated CPU time (s) 79.76
Current children cumulated vsize (Kb) 702112

[startup+90.0082 s]
Raw data (loadavg): 1.01 1.03 1.00 2/55 7492
Raw data (/proc/7492/stat): 7492 (pb2sat) R 7491 7492 4057 0 -1 0 255153 0 0 0 8430 545 0 0 25 0 1 0 21588839 733831168 165392 4294967295 134512640 135987407 3221224560 3219407560 134930964 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7492/statm): 179158 165392 364 364 0 178794 0
[pid=7492] vsize: 716632
Current children cumulated CPU time (s) 89.75
Current children cumulated vsize (Kb) 716632

[startup+100.009 s]
Raw data (loadavg): 1.01 1.03 1.00 2/55 7492
Raw data (/proc/7492/stat): 7492 (pb2sat) R 7491 7492 4057 0 -1 0 266031 0 0 0 9407 567 0 0 25 0 1 0 21588839 784162816 176080 4294967295 134512640 135987407 3221224560 3219514444 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7492/statm): 191446 176080 364 364 0 191082 0
[pid=7492] vsize: 765784
Current children cumulated CPU time (s) 99.74
Current children cumulated vsize (Kb) 765784
One traced child (pid=7492) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 108.351
CPU time (s): 107.956
CPU user time (s): 101.791
CPU system time (s): 6.16506
CPU usage (%): 99.6354
Max. virtual memory (cumulated for all children) (Kb): 765784

Verifier Data

ERROR: no interpretation found !