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-air05.opb
MD5SUMa48e4d8c244906df694603c81ee602a6
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 39630
Optimality of the best value was proved NO
Number of terms in the objective function 7195
Biggest coefficient in the objective function 2679
Number of bits for the biggest coefficient in the objective function 12
Sum of the numbers in the objective function 3908448
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 2679
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 3908448
Number of bits of the biggest sum of numbers22
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1195.15
Number of variables7195
Total number of constraints7621
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)7621
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint404

Trace number 9952

Launcher Data

LAUNCH ON wulflinc27 THE 2005-09-23 16:15:36 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8702 boxname=wulflinc27 idbench=498 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a48e4d8c244906df694603c81ee602a6  /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-air05.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-air05.opb
IDLAUNCH: 8702
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.039
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		: 451.039
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:        939916 kB
Buffers:         11468 kB
Cached:          66188 kB
SwapCached:          0 kB
Active:          46520 kB
Inactive:        34012 kB
HighTotal:      131008 kB
HighFree:        60480 kB
LowTotal:       903652 kB
LowFree:        879436 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8708 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:17:29 (client local time) WITH STATUS 1 IN 112.814 SECONDS
stats: 8702 7 112.814 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 45244
c big objective detected
c trying from 0 to 511

	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/8777/stat): 8777 (pb2sat) R 8776 8777 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21514905 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8777/statm): 373 2 364 364 0 9 0
[pid=8777] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-air05.opb

[startup+10.0016 s]
Raw data (loadavg): 0.93 0.95 0.98 2/55 8777
Raw data (/proc/8777/stat): 8777 (pb2sat) R 8776 8777 4005 0 -1 0 14281 0 0 0 955 39 0 0 25 0 1 0 21514905 44490752 8500 4294967295 134512640 135987407 3221224560 3221223248 134811775 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8777/statm): 10862 8500 364 364 0 10498 0
[pid=8777] vsize: 43448
Current children cumulated CPU time (s) 9.94
Current children cumulated vsize (Kb) 43448

[startup+20.0025 s]
Raw data (loadavg): 0.94 0.96 0.98 2/55 8777
Raw data (/proc/8777/stat): 8777 (pb2sat) R 8776 8777 4005 0 -1 0 28561 0 0 0 1907 77 0 0 25 0 1 0 21514905 95092736 17189 4294967295 134512640 135987407 3221224560 3219286896 134636919 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8777/statm): 23216 17189 364 364 0 22852 0
[pid=8777] vsize: 92864
Current children cumulated CPU time (s) 19.84
Current children cumulated vsize (Kb) 92864

[startup+30.0033 s]
Raw data (loadavg): 0.95 0.96 0.98 2/55 8777
Raw data (/proc/8777/stat): 8777 (pb2sat) R 8776 8777 4005 0 -1 0 58807 0 0 0 2839 143 0 0 25 0 1 0 21514905 191188992 36199 4294967295 134512640 135987407 3221224560 3220271072 134887291 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8777/statm): 46677 36199 364 364 0 46313 0
[pid=8777] vsize: 186708
Current children cumulated CPU time (s) 29.82
Current children cumulated vsize (Kb) 186708

[startup+40.0042 s]
Raw data (loadavg): 0.95 0.96 0.98 2/55 8777
Raw data (/proc/8777/stat): 8777 (pb2sat) R 8776 8777 4005 0 -1 0 89806 0 0 0 3768 211 0 0 25 0 1 0 21514905 274894848 57255 4294967295 134512640 135987407 3221224560 3220436636 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8777/statm): 67113 57255 364 364 0 66749 0
[pid=8777] vsize: 268452
Current children cumulated CPU time (s) 39.79
Current children cumulated vsize (Kb) 268452

[startup+50.005 s]
Raw data (loadavg): 0.96 0.96 0.98 2/55 8777
Raw data (/proc/8777/stat): 8777 (pb2sat) R 8776 8777 4005 0 -1 0 118059 0 0 0 4702 275 0 0 25 0 1 0 21514905 382300160 73001 4294967295 134512640 135987407 3221224560 3220499352 135487946 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8777/statm): 93335 73001 364 364 0 92971 0
[pid=8777] vsize: 373340
Current children cumulated CPU time (s) 49.77
Current children cumulated vsize (Kb) 373340

[startup+60.0058 s]
Raw data (loadavg): 0.97 0.96 0.98 2/55 8777
Raw data (/proc/8777/stat): 8777 (pb2sat) R 8776 8777 4005 0 -1 0 161314 0 0 0 5617 356 0 0 25 0 1 0 21514905 592629760 115056 4294967295 134512640 135987407 3221224560 3220323352 134533885 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8777/statm): 144685 115056 364 364 0 144321 0
[pid=8777] vsize: 578740
Current children cumulated CPU time (s) 59.73
Current children cumulated vsize (Kb) 578740

[startup+70.0066 s]
Raw data (loadavg): 0.97 0.96 0.98 2/55 8777
Raw data (/proc/8777/stat): 8777 (pb2sat) R 8776 8777 4005 0 -1 0 178446 0 0 0 6574 396 0 0 25 0 1 0 21514905 547684352 113526 4294967295 134512640 135987407 3221224560 3219366100 135477879 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8777/statm): 133712 113526 364 364 0 133348 0
[pid=8777] vsize: 534848
Current children cumulated CPU time (s) 69.7
Current children cumulated vsize (Kb) 534848

[startup+80.0075 s]
Raw data (loadavg): 0.98 0.96 0.98 2/55 8777
Raw data (/proc/8777/stat): 8777 (pb2sat) R 8776 8777 4005 0 -1 0 218719 0 0 0 7485 484 0 0 25 0 1 0 21514905 671326208 129010 4294967295 134512640 135987407 3221224560 3221081360 134877995 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8777/statm): 163898 129010 364 364 0 163534 0
[pid=8777] vsize: 655592
Current children cumulated CPU time (s) 79.69
Current children cumulated vsize (Kb) 655592

[startup+90.0083 s]
Raw data (loadavg): 0.98 0.96 0.98 2/55 8777
Raw data (/proc/8777/stat): 8777 (pb2sat) R 8776 8777 4005 0 -1 0 233795 0 0 0 8451 516 0 0 25 0 1 0 21514905 727048192 143881 4294967295 134512640 135987407 3221224560 3220703824 134560134 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8777/statm): 177502 143881 364 364 0 177138 0
[pid=8777] vsize: 710008
Current children cumulated CPU time (s) 89.67
Current children cumulated vsize (Kb) 710008

[startup+100.009 s]
Raw data (loadavg): 0.98 0.96 0.98 2/55 8777
Raw data (/proc/8777/stat): 8777 (pb2sat) R 8776 8777 4005 0 -1 0 251957 0 0 0 9410 554 0 0 25 0 1 0 21514905 753811456 161799 4294967295 134512640 135987407 3221224560 3221205040 135477288 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8777/statm): 184036 161799 364 364 0 183672 0
[pid=8777] vsize: 736144
Current children cumulated CPU time (s) 99.64
Current children cumulated vsize (Kb) 736144

[startup+110.01 s]
Raw data (loadavg): 0.98 0.96 0.98 2/55 8777
Raw data (/proc/8777/stat): 8777 (pb2sat) R 8776 8777 4005 0 -1 0 263182 0 0 0 10383 580 0 0 25 0 1 0 21514905 774189056 172860 4294967295 134512640 135987407 3221224560 3221223240 135477320 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8777/statm): 189011 172860 364 364 0 188647 0
[pid=8777] vsize: 756044
Current children cumulated CPU time (s) 109.63
Current children cumulated vsize (Kb) 756044
One traced child (pid=8777) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 113.196
CPU time (s): 112.814
CPU user time (s): 106.669
CPU system time (s): 6.14506
CPU usage (%): 99.6623
Max. virtual memory (cumulated for all children) (Kb): 756044

Verifier Data

ERROR: no interpretation found !