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-v2-13-7/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-bnl2.opb
MD5SUM25ba81ffd6b61270ad99e5bd6f700914
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 33700
Biggest coefficient in the objective function 314887372800
Number of bits for the biggest coefficient in the objective function 39
Sum of the numbers in the objective function 11048951166825
Number of bits of the sum of numbers in the objective function 44
Biggest number in a constraint 314887372800
Number of bits of the biggest number in a constraint 39
Biggest sum of numbers in a constraint 11048951166825
Number of bits of the biggest sum of numbers44
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark5.2412
Number of variables69780
Total number of constraints2280
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 constraints2280
Minimum length of a constraint20
Maximum length of a constraint1640

Trace number 10257

Launcher Data

LAUNCH ON wulflinc2 THE 2005-09-23 17:43:10 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9001 boxname=wulflinc2 idbench=797 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  25ba81ffd6b61270ad99e5bd6f700914  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-bnl2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-bnl2.opb
IDLAUNCH: 9001
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.261
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		: 451.261
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:        888756 kB
Buffers:         17100 kB
Cached:         108836 kB
SwapCached:          0 kB
Active:          52840 kB
Inactive:        76024 kB
HighTotal:      131008 kB
HighFree:        26040 kB
LowTotal:       903652 kB
LowFree:        862716 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11400 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:45:18 (client local time) WITH STATUS 1 IN 128.282 SECONDS
stats: 9001 7 128.282 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/10116/stat): 10116 (pb2sat) R 10115 10116 4070 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22097202 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10116/statm): 373 2 364 364 0 9 0
[pid=10116] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-bnl2.opb

[startup+10.0018 s]
Raw data (loadavg): 0.93 0.95 0.97 2/55 10116
Raw data (/proc/10116/stat): 10116 (pb2sat) T 10115 10116 4070 0 -1 0 2570 0 0 0 992 6 0 0 25 0 1 0 22097202 9502720 1883 4294967295 134512640 135987407 3221224560 3221221612 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/10116/statm): 2320 1883 364 364 0 1956 0
[pid=10116] vsize: 9280
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 9280

[startup+20.0026 s]
Raw data (loadavg): 0.94 0.95 0.97 2/55 10116
Raw data (/proc/10116/stat): 10116 (pb2sat) R 10115 10116 4070 0 -1 0 4191 0 0 0 1988 10 0 0 25 0 1 0 22097202 15224832 2757 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10116/statm): 3717 2757 364 364 0 3353 0
[pid=10116] vsize: 14868
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 14868

[startup+30.0032 s]
Raw data (loadavg): 0.95 0.95 0.97 2/55 10116
Raw data (/proc/10116/stat): 10116 (pb2sat) R 10115 10116 4070 0 -1 0 31063 0 0 0 2927 69 0 0 25 0 1 0 22097202 95526912 19662 4294967295 134512640 135987407 3221224560 3221164576 134789820 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10116/statm): 23322 19662 364 364 0 22958 0
[pid=10116] vsize: 93288
Current children cumulated CPU time (s) 29.96
Current children cumulated vsize (Kb) 93288

[startup+40.004 s]
Raw data (loadavg): 0.96 0.96 0.97 2/55 10116
Raw data (/proc/10116/stat): 10116 (pb2sat) R 10115 10116 4070 0 -1 0 61649 0 0 0 3866 127 0 0 25 0 1 0 22097202 191373312 39035 4294967295 134512640 135987407 3221224560 3221164796 134876432 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10116/statm): 46722 39035 364 364 0 46358 0
[pid=10116] vsize: 186888
Current children cumulated CPU time (s) 39.93
Current children cumulated vsize (Kb) 186888

[startup+50.0047 s]
Raw data (loadavg): 0.96 0.96 0.97 2/55 10116
Raw data (/proc/10116/stat): 10116 (pb2sat) R 10115 10116 4070 0 -1 0 103878 0 0 0 4778 211 0 0 25 0 1 0 22097202 323014656 59071 4294967295 134512640 135987407 3221224560 3221170412 135484967 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10116/statm): 78861 59071 364 364 0 78497 0
[pid=10116] vsize: 315444
Current children cumulated CPU time (s) 49.89
Current children cumulated vsize (Kb) 315444

[startup+60.0054 s]
Raw data (loadavg): 0.97 0.96 0.97 2/55 10116
Raw data (/proc/10116/stat): 10116 (pb2sat) R 10115 10116 4070 0 -1 0 121739 0 0 0 5740 246 0 0 25 0 1 0 22097202 381857792 76720 4294967295 134512640 135987407 3221224560 3221168512 134878060 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10116/statm): 93227 76720 364 364 0 92863 0
[pid=10116] vsize: 372908
Current children cumulated CPU time (s) 59.86
Current children cumulated vsize (Kb) 372908

[startup+70.005 s]
Raw data (loadavg): 0.97 0.96 0.97 2/55 10116
Raw data (/proc/10116/stat): 10116 (pb2sat) R 10115 10116 4070 0 -1 0 156933 0 0 0 6674 310 0 0 25 0 1 0 22097202 577236992 111070 4294967295 134512640 135987407 3221224560 3221169472 134856594 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10116/statm): 140927 111072 364 364 0 140563 0
[pid=10116] vsize: 563708
Current children cumulated CPU time (s) 69.84
Current children cumulated vsize (Kb) 563708

[startup+80.0057 s]
Raw data (loadavg): 0.98 0.96 0.97 2/55 10116
Raw data (/proc/10116/stat): 10116 (pb2sat) R 10115 10116 4070 0 -1 0 206065 0 0 0 7568 413 0 0 25 0 1 0 22097202 644714496 116665 4294967295 134512640 135987407 3221224560 3221171488 134856461 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10116/statm): 157401 116666 364 364 0 157037 0
[pid=10116] vsize: 629604
Current children cumulated CPU time (s) 79.81
Current children cumulated vsize (Kb) 629604

[startup+90.0055 s]
Raw data (loadavg): 0.98 0.96 0.97 2/55 10116
Raw data (/proc/10116/stat): 10116 (pb2sat) R 10115 10116 4070 0 -1 0 221905 0 0 0 8533 446 0 0 25 0 1 0 22097202 699777024 132313 4294967295 134512640 135987407 3221224560 3221173980 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10116/statm): 170844 132313 364 364 0 170480 0
[pid=10116] vsize: 683376
Current children cumulated CPU time (s) 89.79
Current children cumulated vsize (Kb) 683376

[startup+100.006 s]
Raw data (loadavg): 0.98 0.96 0.97 2/55 10116
Raw data (/proc/10116/stat): 10116 (pb2sat) T 10115 10116 4070 0 -1 0 240808 0 0 0 9493 483 0 0 25 0 1 0 22097202 725323776 150988 4294967295 134512640 135987407 3221224560 3221173260 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/10116/statm): 177081 150988 364 364 0 176717 0
[pid=10116] vsize: 708324
Current children cumulated CPU time (s) 99.76
Current children cumulated vsize (Kb) 708324

[startup+110.007 s]
Raw data (loadavg): 0.98 0.96 0.97 2/55 10116
Raw data (/proc/10116/stat): 10116 (pb2sat) R 10115 10116 4070 0 -1 0 259241 0 0 0 10456 518 0 0 25 0 1 0 22097202 750067712 169197 4294967295 134512640 135987407 3221224560 3221175184 134856458 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10116/statm): 183122 169197 364 364 0 182758 0
[pid=10116] vsize: 732488
Current children cumulated CPU time (s) 109.74
Current children cumulated vsize (Kb) 732488

[startup+120.007 s]
Raw data (loadavg): 0.99 0.96 0.97 2/55 10116
Raw data (/proc/10116/stat): 10116 (pb2sat) R 10115 10116 4070 0 -1 0 272261 0 0 0 11425 548 0 0 25 0 1 0 22097202 817700864 182059 4294967295 134512640 135987407 3221224560 3221221136 134636930 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10116/statm): 199634 182059 364 364 0 199270 0
[pid=10116] vsize: 798536
Current children cumulated CPU time (s) 119.73
Current children cumulated vsize (Kb) 798536
One traced child (pid=10116) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 128.553
CPU time (s): 128.282
CPU user time (s): 122.331
CPU system time (s): 5.9511
CPU usage (%): 99.7894
Max. virtual memory (cumulated for all children) (Kb): 798536

Verifier Data

ERROR: no interpretation found !