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/miplib2003/normalized-mps-v2-20-10-mas76.opb
MD5SUM27d23262443a97061dfd41cca261928b
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 503502750032
Optimality of the best value was proved NO
Number of terms in the objective function 240
Biggest coefficient in the objective function 1934281311383406679529881600000
Number of bits for the biggest coefficient in the objective function 101
Sum of the numbers in the objective function 3868562622766813359059763200000
Number of bits of the sum of numbers in the objective function 102
Biggest number in a constraint 1208925819614629174706176000000000
Number of bits of the biggest number in a constraint 110
Biggest sum of numbers in a constraint 2417851639229258349412352000000000
Number of bits of the biggest sum of numbers111
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark9.66953
Number of variables240
Total number of constraints163
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)151
Number of constraints which are nor clauses,nor cardinality constraints12
Minimum length of a constraint1
Maximum length of a constraint239

Trace number 10019

Launcher Data

LAUNCH ON wulflinc23 THE 2005-09-23 16:35:19 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8779 boxname=wulflinc23 idbench=575 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  27d23262443a97061dfd41cca261928b  /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-mas76.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-mas76.opb
IDLAUNCH: 8779
/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:        918760 kB
Buffers:         14368 kB
Cached:          83484 kB
SwapCached:          0 kB
Active:          59492 kB
Inactive:        41204 kB
HighTotal:      131008 kB
HighFree:        43372 kB
LowTotal:       903652 kB
LowFree:        875388 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9760 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:37:10 (client local time) WITH STATUS 1 IN 110.217 SECONDS
stats: 8779 7 110.217 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/8513/stat): 8513 (pb2sat) R 8512 8513 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21666279 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8513/statm): 373 2 364 364 0 9 0
[pid=8513] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-mas76.opb

[startup+10.0014 s]
Raw data (loadavg): 0.87 0.93 0.92 2/55 8513
Raw data (/proc/8513/stat): 8513 (pb2sat) R 8512 8513 4060 0 -1 0 30602 0 0 0 927 69 0 0 25 0 1 0 21666279 99082240 19457 4294967295 134512640 135987407 3221224560 3221153004 135480458 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8513/statm): 24190 19457 364 364 0 23826 0
[pid=8513] vsize: 96760
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 96760

[startup+20.002 s]
Raw data (loadavg): 0.89 0.93 0.92 2/55 8513
Raw data (/proc/8513/stat): 8513 (pb2sat) R 8512 8513 4060 0 -1 0 60355 0 0 0 1864 130 0 0 25 0 1 0 21666279 195235840 37995 4294967295 134512640 135987407 3221224560 3221153452 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8513/statm): 47665 37995 364 364 0 47301 0
[pid=8513] vsize: 190660
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 190660

[startup+30.0027 s]
Raw data (loadavg): 0.91 0.93 0.92 2/55 8513
Raw data (/proc/8513/stat): 8513 (pb2sat) R 8512 8513 4060 0 -1 0 91065 0 0 0 2801 190 0 0 25 0 1 0 21666279 279465984 58781 4294967295 134512640 135987407 3221224560 3221155836 135480899 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8513/statm): 68229 58781 364 364 0 67865 0
[pid=8513] vsize: 272916
Current children cumulated CPU time (s) 29.91
Current children cumulated vsize (Kb) 272916

[startup+40.0033 s]
Raw data (loadavg): 0.92 0.94 0.92 2/55 8513
Raw data (/proc/8513/stat): 8513 (pb2sat) R 8512 8513 4060 0 -1 0 118645 0 0 0 3738 251 0 0 25 0 1 0 21666279 385789952 73881 4294967295 134512640 135987407 3221224560 3221154400 134878078 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8513/statm): 94187 73881 364 364 0 93823 0
[pid=8513] vsize: 376748
Current children cumulated CPU time (s) 39.89
Current children cumulated vsize (Kb) 376748

[startup+50.0039 s]
Raw data (loadavg): 0.93 0.94 0.92 2/55 8513
Raw data (/proc/8513/stat): 8513 (pb2sat) R 8512 8513 4060 0 -1 0 139760 0 0 0 4691 295 0 0 25 0 1 0 21666279 562008064 94683 4294967295 134512640 135987407 3221224560 3221152780 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8513/statm): 137209 94683 364 364 0 136845 0
[pid=8513] vsize: 548836
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 548836

[startup+60.0036 s]
Raw data (loadavg): 0.94 0.94 0.92 2/55 8513
Raw data (/proc/8513/stat): 8513 (pb2sat) R 8512 8513 4060 0 -1 0 179492 0 0 0 5610 372 0 0 25 0 1 0 21666279 553320448 114624 4294967295 134512640 135987407 3221224560 3221159836 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8513/statm): 135088 114624 364 364 0 134724 0
[pid=8513] vsize: 540352
Current children cumulated CPU time (s) 59.82
Current children cumulated vsize (Kb) 540352

[startup+70.0042 s]
Raw data (loadavg): 0.95 0.94 0.92 2/55 8513
Raw data (/proc/8513/stat): 8513 (pb2sat) R 8512 8513 4060 0 -1 0 219269 0 0 0 6523 457 0 0 25 0 1 0 21666279 675880960 129627 4294967295 134512640 135987407 3221224560 3221160208 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8513/statm): 165010 129627 364 364 0 164646 0
[pid=8513] vsize: 660040
Current children cumulated CPU time (s) 69.8
Current children cumulated vsize (Kb) 660040

[startup+80.0049 s]
Raw data (loadavg): 0.96 0.94 0.92 2/55 8513
Raw data (/proc/8513/stat): 8513 (pb2sat) R 8512 8513 4060 0 -1 0 233889 0 0 0 7494 485 0 0 25 0 1 0 21666279 730386432 144059 4294967295 134512640 135987407 3221224560 3221154192 134560665 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8513/statm): 178317 144059 364 364 0 177953 0
[pid=8513] vsize: 713268
Current children cumulated CPU time (s) 79.79
Current children cumulated vsize (Kb) 713268

[startup+90.0055 s]
Raw data (loadavg): 0.96 0.94 0.92 2/55 8513
Raw data (/proc/8513/stat): 8513 (pb2sat) R 8512 8513 4060 0 -1 0 251159 0 0 0 8457 520 0 0 25 0 1 0 21666279 754851840 161109 4294967295 134512640 135987407 3221224560 3221153116 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8513/statm): 184290 161109 364 364 0 183926 0
[pid=8513] vsize: 737160
Current children cumulated CPU time (s) 89.77
Current children cumulated vsize (Kb) 737160

[startup+100.006 s]
Raw data (loadavg): 0.97 0.94 0.92 2/55 8513
Raw data (/proc/8513/stat): 8513 (pb2sat) R 8512 8513 4060 0 -1 0 268737 0 0 0 9420 554 0 0 25 0 1 0 21666279 781520896 178468 4294967295 134512640 135987407 3221224560 3221157196 134635478 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8513/statm): 190801 178468 364 364 0 190437 0
[pid=8513] vsize: 763204
Current children cumulated CPU time (s) 99.74
Current children cumulated vsize (Kb) 763204

[startup+110.006 s]
Raw data (loadavg): 0.97 0.95 0.92 2/55 8513
Raw data (/proc/8513/stat): 8513 (pb2sat) R 8512 8513 4060 0 -1 0 272894 0 0 0 10398 575 0 0 25 0 1 0 21666279 475013120 115431 4294967295 134512640 135987407 3221224560 3221223408 134884016 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8513/statm): 115970 115431 364 364 0 115606 0
[pid=8513] vsize: 463880
Current children cumulated CPU time (s) 109.73
Current children cumulated vsize (Kb) 463880
One traced child (pid=8513) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 110.483
CPU time (s): 110.217
CPU user time (s): 104.211
CPU system time (s): 6.00609
CPU usage (%): 99.7593
Max. virtual memory (cumulated for all children) (Kb): 763204

Verifier Data

ERROR: no interpretation found !