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-fit1p.opb
MD5SUM0417a8bac185d4a033d4915882b274ef
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 30780
Biggest coefficient in the objective function 1610612736
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 1591285381686
Number of bits of the sum of numbers in the objective function 41
Biggest number in a constraint 59431609958400
Number of bits of the biggest number in a constraint 46
Biggest sum of numbers in a constraint 209844586667159
Number of bits of the biggest sum of numbers48
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables45485
Total number of constraints1026
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 constraints1026
Minimum length of a constraint17
Maximum length of a constraint619

Trace number 9881

Launcher Data

LAUNCH ON wulflinc11 THE 2005-09-23 16:05:01 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8633 boxname=wulflinc11 idbench=429 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0417a8bac185d4a033d4915882b274ef  /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-fit1p.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-fit1p.opb
IDLAUNCH: 8633
/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:        904340 kB
Buffers:          8708 kB
Cached:          96012 kB
SwapCached:          0 kB
Active:          63480 kB
Inactive:        50864 kB
HighTotal:      131008 kB
HighFree:        32648 kB
LowTotal:       903652 kB
LowFree:        871692 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10260 kB
Committed_AS:    63644 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:07:03 (client local time) WITH STATUS 1 IN 120.839 SECONDS
stats: 8633 7 120.839 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/8930/stat): 8930 (pb2sat) R 8929 8930 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21489259 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8930/statm): 373 2 364 364 0 9 0
[pid=8930] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-fit1p.opb

[startup+10.0027 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 8930
Raw data (/proc/8930/stat): 8930 (pb2sat) R 8929 8930 4060 0 -1 0 2599 0 0 0 991 7 0 0 25 0 1 0 21489259 9641984 1911 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8930/statm): 2354 1911 364 364 0 1990 0
[pid=8930] vsize: 9416
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 9416

[startup+20.0035 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 8930
Raw data (/proc/8930/stat): 8930 (pb2sat) R 8929 8930 4060 0 -1 0 16102 0 0 0 1958 39 0 0 25 0 1 0 21489259 54251520 10465 4294967295 134512640 135987407 3221224560 3221072960 134877726 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8930/statm): 13245 10465 364 364 0 12881 0
[pid=8930] vsize: 52980
Current children cumulated CPU time (s) 19.97
Current children cumulated vsize (Kb) 52980

[startup+30.0033 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 8930
Raw data (/proc/8930/stat): 8930 (pb2sat) R 8929 8930 4060 0 -1 0 53880 0 0 0 2877 117 0 0 25 0 1 0 21489259 168980480 31520 4294967295 134512640 135987407 3221224560 3221079052 135480425 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8930/statm): 41255 31520 364 364 0 40891 0
[pid=8930] vsize: 165020
Current children cumulated CPU time (s) 29.94
Current children cumulated vsize (Kb) 165020

[startup+40.0041 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 8930
Raw data (/proc/8930/stat): 8930 (pb2sat) R 8929 8930 4060 0 -1 0 86140 0 0 0 3811 179 0 0 25 0 1 0 21489259 270409728 53852 4294967295 134512640 135987407 3221224560 3221087112 135487976 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8930/statm): 66018 53852 364 364 0 65654 0
[pid=8930] vsize: 264072
Current children cumulated CPU time (s) 39.9
Current children cumulated vsize (Kb) 264072

[startup+50.0049 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 8930
Raw data (/proc/8930/stat): 8930 (pb2sat) R 8929 8930 4060 0 -1 0 115752 0 0 0 4747 242 0 0 25 0 1 0 21489259 377409536 70967 4294967295 134512640 135987407 3221224560 3221087960 134537425 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8930/statm): 92141 70967 364 364 0 91777 0
[pid=8930] vsize: 368564
Current children cumulated CPU time (s) 49.89
Current children cumulated vsize (Kb) 368564

[startup+60.0056 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 8930
Raw data (/proc/8930/stat): 8930 (pb2sat) R 8929 8930 4060 0 -1 0 135714 0 0 0 5704 282 0 0 25 0 1 0 21489259 404307968 90691 4294967295 134512640 135987407 3221224560 3221088908 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8930/statm): 98708 90691 364 364 0 98344 0
[pid=8930] vsize: 394832
Current children cumulated CPU time (s) 59.86
Current children cumulated vsize (Kb) 394832

[startup+70.0064 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 8932
Raw data (/proc/8930/stat): 8930 (pb2sat) R 8929 8930 4060 0 -1 0 202000 0 0 0 6572 410 0 0 25 0 1 0 21489259 743854080 137396 4294967295 134512640 135987407 3221224560 3221088992 134887649 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8930/statm): 181605 137396 364 364 0 181241 0
[pid=8930] vsize: 726420
Current children cumulated CPU time (s) 69.82
Current children cumulated vsize (Kb) 726420

[startup+80.0072 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 8932
Raw data (/proc/8930/stat): 8930 (pb2sat) R 8929 8930 4060 0 -1 0 218974 0 0 0 7532 449 0 0 25 0 1 0 21489259 699588608 129589 4294967295 134512640 135987407 3221224560 3221090924 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8930/statm): 170798 129589 364 364 0 170434 0
[pid=8930] vsize: 683192
Current children cumulated CPU time (s) 79.81
Current children cumulated vsize (Kb) 683192

[startup+90.008 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 8932
Raw data (/proc/8930/stat): 8930 (pb2sat) R 8929 8930 4060 0 -1 0 238819 0 0 0 8489 489 0 0 25 0 1 0 21489259 726351872 149196 4294967295 134512640 135987407 3221224560 3221097360 134637817 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8930/statm): 177332 149196 364 364 0 176968 0
[pid=8930] vsize: 709328
Current children cumulated CPU time (s) 89.78
Current children cumulated vsize (Kb) 709328

[startup+100.008 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 8932
Raw data (/proc/8930/stat): 8930 (pb2sat) R 8929 8930 4060 0 -1 0 258249 0 0 0 9449 526 0 0 25 0 1 0 21489259 751763456 168392 4294967295 134512640 135987407 3221224560 3221095628 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8930/statm): 183536 168392 364 364 0 183172 0
[pid=8930] vsize: 734144
Current children cumulated CPU time (s) 99.75
Current children cumulated vsize (Kb) 734144

[startup+110.009 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 8932
Raw data (/proc/8930/stat): 8930 (pb2sat) R 8929 8930 4060 0 -1 0 273846 0 0 0 10416 558 0 0 25 0 1 0 21489259 822509568 183800 4294967295 134512640 135987407 3221224560 3221096524 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8930/statm): 200808 183800 364 364 0 200444 0
[pid=8930] vsize: 803232
Current children cumulated CPU time (s) 109.74
Current children cumulated vsize (Kb) 803232

[startup+120.009 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 8932
Raw data (/proc/8930/stat): 8930 (pb2sat) R 8929 8930 4060 0 -1 0 281925 0 0 0 11385 588 0 0 25 0 1 0 21489259 473391104 115129 4294967295 134512640 135987407 3221224560 3221223344 134892999 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8930/statm): 115574 115129 364 364 0 115210 0
[pid=8930] vsize: 462296
Current children cumulated CPU time (s) 119.73
Current children cumulated vsize (Kb) 462296
One traced child (pid=8930) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 121.113
CPU time (s): 120.839
CPU user time (s): 114.712
CPU system time (s): 6.12707
CPU usage (%): 99.7735
Max. virtual memory (cumulated for all children) (Kb): 803232

Verifier Data

ERROR: no interpretation found !