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-beaconfd.opb
MD5SUM18a0e58c186b303cfef9a01fc213e1b1
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 2880
Biggest coefficient in the objective function 58518929408000
Number of bits for the biggest coefficient in the objective function 46
Sum of the numbers in the objective function 540181257540309
Number of bits of the sum of numbers in the objective function 49
Biggest number in a constraint 58518929408000
Number of bits of the biggest number in a constraint 46
Biggest sum of numbers in a constraint 540181257540309
Number of bits of the biggest sum of numbers49
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark15.3367
Number of variables7860
Total number of constraints173
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 constraints173
Minimum length of a constraint30
Maximum length of a constraint4620

Trace number 9858

Launcher Data

LAUNCH ON wulflinc8 THE 2005-09-23 16:01:00 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8614 boxname=wulflinc8 idbench=410 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  18a0e58c186b303cfef9a01fc213e1b1  /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-20-10-beaconfd.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-20-10-beaconfd.opb
IDLAUNCH: 8614
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.023
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		: 451.023
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:        934768 kB
Buffers:         12720 kB
Cached:          69696 kB
SwapCached:          0 kB
Active:          47260 kB
Inactive:        38096 kB
HighTotal:      131008 kB
HighFree:        57316 kB
LowTotal:       903652 kB
LowFree:        877452 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:             8908 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:02:48 (client local time) WITH STATUS 1 IN 107.607 SECONDS
stats: 8614 7 107.607 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/8299/stat): 8299 (pb2sat) R 8298 8299 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21478551 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8299/statm): 373 2 364 364 0 9 0
[pid=8299] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-20-10-beaconfd.opb

[startup+10.0012 s]
Raw data (loadavg): 1.08 0.99 0.97 2/55 8301
Raw data (/proc/8299/stat): 8299 (pb2sat) R 8298 8299 4060 0 -1 0 28800 0 0 0 933 65 0 0 25 0 1 0 21478551 87523328 17652 4294967295 134512640 135987407 3221224560 3220243372 135499903 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8299/statm): 21368 17652 364 364 0 21004 0
[pid=8299] vsize: 85472
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 85472

[startup+20.002 s]
Raw data (loadavg): 1.07 0.99 0.97 2/55 8303
Raw data (/proc/8299/stat): 8299 (pb2sat) R 8298 8299 4060 0 -1 0 60189 0 0 0 1862 131 0 0 25 0 1 0 21478551 184565760 37824 4294967295 134512640 135987407 3221224560 3220259936 134878604 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8299/statm): 45060 37824 364 364 0 44696 0
[pid=8299] vsize: 180240
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 180240

[startup+30.0027 s]
Raw data (loadavg): 1.06 0.99 0.97 2/55 8305
Raw data (/proc/8299/stat): 8299 (pb2sat) R 8298 8299 4060 0 -1 0 103233 0 0 0 2767 223 0 0 25 0 1 0 21478551 316710912 58668 4294967295 134512640 135987407 3221224560 3220240852 134636948 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8299/statm): 77322 58668 364 364 0 76958 0
[pid=8299] vsize: 309288
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 309288

[startup+40.0035 s]
Raw data (loadavg): 1.05 0.99 0.97 2/55 8305
Raw data (/proc/8299/stat): 8299 (pb2sat) R 8298 8299 4060 0 -1 0 122187 0 0 0 3727 261 0 0 25 0 1 0 21478551 375947264 77396 4294967295 134512640 135987407 3221224560 3220247792 134856581 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8299/statm): 91784 77396 364 364 0 91420 0
[pid=8299] vsize: 367136
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 367136

[startup+50.0043 s]
Raw data (loadavg): 1.04 0.99 0.97 2/55 8305
Raw data (/proc/8299/stat): 8299 (pb2sat) R 8298 8299 4060 0 -1 0 160249 0 0 0 4648 335 0 0 25 0 1 0 21478551 575328256 114528 4294967295 134512640 135987407 3221224560 3220352060 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8299/statm): 140461 114531 364 364 0 140097 0
[pid=8299] vsize: 561844
Current children cumulated CPU time (s) 49.83
Current children cumulated vsize (Kb) 561844

[startup+60.0041 s]
Raw data (loadavg): 1.03 0.99 0.97 2/55 8305
Raw data (/proc/8299/stat): 8299 (pb2sat) R 8298 8299 4060 0 -1 0 208079 0 0 0 5540 441 0 0 25 0 1 0 21478551 640913408 118895 4294967295 134512640 135987407 3221224560 3220307456 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8299/statm): 156473 118895 364 364 0 156109 0
[pid=8299] vsize: 625892
Current children cumulated CPU time (s) 59.81
Current children cumulated vsize (Kb) 625892

[startup+70.0049 s]
Raw data (loadavg): 1.03 0.99 0.97 2/55 8305
Raw data (/proc/8299/stat): 8299 (pb2sat) R 8298 8299 4060 0 -1 0 225101 0 0 0 6501 478 0 0 25 0 1 0 21478551 697040896 135714 4294967295 134512640 135987407 3221224560 3220370236 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8299/statm): 170176 135714 364 364 0 169812 0
[pid=8299] vsize: 680704
Current children cumulated CPU time (s) 69.79
Current children cumulated vsize (Kb) 680704

[startup+80.0056 s]
Raw data (loadavg): 1.02 0.99 0.97 2/55 8305
Raw data (/proc/8299/stat): 8299 (pb2sat) R 8298 8299 4060 0 -1 0 244623 0 0 0 7457 521 0 0 25 0 1 0 21478551 722722816 155001 4294967295 134512640 135987407 3221224560 3220282448 134878060 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8299/statm): 176446 155002 364 364 0 176082 0
[pid=8299] vsize: 705784
Current children cumulated CPU time (s) 79.78
Current children cumulated vsize (Kb) 705784

[startup+90.0064 s]
Raw data (loadavg): 1.02 0.99 0.97 1/55 8305
Raw data (/proc/8299/stat): 8299 (pb2sat) T 8298 8299 4060 0 -1 0 259997 0 0 0 8424 554 0 0 25 0 1 0 21478551 793059328 170190 4294967295 134512640 135987407 3221224560 3220359628 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/8299/statm): 193618 170190 364 364 0 193254 0
[pid=8299] vsize: 774472
Current children cumulated CPU time (s) 89.78
Current children cumulated vsize (Kb) 774472

[startup+100.006 s]
Raw data (loadavg): 1.02 0.99 0.97 2/55 8305
Raw data (/proc/8299/stat): 8299 (pb2sat) R 8298 8299 4060 0 -1 0 279029 0 0 0 9381 594 0 0 25 0 1 0 21478551 817659904 188993 4294967295 134512640 135987407 3221224560 3220264252 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8299/statm): 199624 188993 364 364 0 199260 0
[pid=8299] vsize: 798496
Current children cumulated CPU time (s) 99.75
Current children cumulated vsize (Kb) 798496
One traced child (pid=8299) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 107.863
CPU time (s): 107.607
CPU user time (s): 101.254
CPU system time (s): 6.35303
CPU usage (%): 99.7627
Max. virtual memory (cumulated for all children) (Kb): 798496

Verifier Data

ERROR: no interpretation found !