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-pilotnov.opb
MD5SUM474db7a0368f1f09ef735587d48fb458
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 1260
Biggest coefficient in the objective function 466616320000
Number of bits for the biggest coefficient in the objective function 39
Sum of the numbers in the objective function 19239881147850
Number of bits of the sum of numbers in the objective function 45
Biggest number in a constraint 3067683012608000000
Number of bits of the biggest number in a constraint 62
Biggest sum of numbers in a constraint -6031476375157695016
Number of bits of the biggest sum of numbers64
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark9.2296
Number of variables37297
Total number of constraints1287
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 constraints1287
Minimum length of a constraint7
Maximum length of a constraint3024

Trace number 10290

Launcher Data

LAUNCH ON wulflinc13 THE 2005-09-23 17:46:54 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9036 boxname=wulflinc13 idbench=832 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  474db7a0368f1f09ef735587d48fb458  /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-13-7-pilotnov.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-13-7-pilotnov.opb
IDLAUNCH: 9036
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.180
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		: 451.180
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:        963216 kB
Buffers:           504 kB
Cached:          53556 kB
SwapCached:          0 kB
Active:          19772 kB
Inactive:        37212 kB
HighTotal:      131008 kB
HighFree:        73164 kB
LowTotal:       903652 kB
LowFree:        890052 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8852 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:48:43 (client local time) WITH STATUS 1 IN 108.589 SECONDS
stats: 9036 7 108.589 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/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22099205 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 373 2 364 364 0 9 0
[pid=8899] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-13-7-pilotnov.opb

[startup+10.0019 s]
Raw data (loadavg): 0.88 0.95 0.96 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 30661 0 0 0 928 68 0 0 25 0 1 0 22099205 97951744 19518 4294967295 134512640 135987407 3221224560 3221133968 134537371 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 23914 19518 364 364 0 23550 0
[pid=8899] vsize: 95656
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 95656

[startup+20.0025 s]
Raw data (loadavg): 0.90 0.95 0.96 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 61519 0 0 0 1861 133 0 0 25 0 1 0 22099205 194478080 39156 4294967295 134512640 135987407 3221224560 3221129852 134636961 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 47480 39156 364 364 0 47116 0
[pid=8899] vsize: 189920
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 189920

[startup+30.0022 s]
Raw data (loadavg): 0.91 0.95 0.96 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 104374 0 0 0 2771 219 0 0 25 0 1 0 22099205 327831552 59807 4294967295 134512640 135987407 3221224560 3221127260 134635478 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 80037 59807 364 364 0 79673 0
[pid=8899] vsize: 320148
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 320148

[startup+40.0019 s]
Raw data (loadavg): 0.93 0.96 0.96 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 122257 0 0 0 3730 257 0 0 25 0 1 0 22099205 385716224 77466 4294967295 134512640 135987407 3221224560 3221129616 134636919 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 94169 77466 364 364 0 93805 0
[pid=8899] vsize: 376676
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 376676

[startup+50.0025 s]
Raw data (loadavg): 0.94 0.96 0.96 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 158805 0 0 0 4656 328 0 0 25 0 1 0 22099205 584847360 113135 4294967295 134512640 135987407 3221224560 3221132480 134856394 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 142785 113135 364 364 0 142421 0
[pid=8899] vsize: 571140
Current children cumulated CPU time (s) 49.84
Current children cumulated vsize (Kb) 571140

[startup+60.0022 s]
Raw data (loadavg): 0.95 0.96 0.96 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 207204 0 0 0 5551 429 0 0 25 0 1 0 22099205 651644928 118024 4294967295 134512640 135987407 3221224560 3221129440 134866000 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 159093 118024 364 364 0 158729 0
[pid=8899] vsize: 636372
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 636372

[startup+70.0028 s]
Raw data (loadavg): 0.95 0.96 0.96 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 223306 0 0 0 6516 463 0 0 25 0 1 0 22099205 707096576 133926 4294967295 134512640 135987407 3221224560 3221130424 134893009 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 172631 133926 364 364 0 172267 0
[pid=8899] vsize: 690524
Current children cumulated CPU time (s) 69.79
Current children cumulated vsize (Kb) 690524

[startup+80.0035 s]
Raw data (loadavg): 0.96 0.96 0.96 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 242104 0 0 0 7477 498 0 0 25 0 1 0 22099205 733089792 152493 4294967295 134512640 135987407 3221224560 3221128764 134669201 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 178977 152493 364 364 0 178613 0
[pid=8899] vsize: 715908
Current children cumulated CPU time (s) 79.75
Current children cumulated vsize (Kb) 715908

[startup+90.0031 s]
Raw data (loadavg): 0.97 0.96 0.96 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 260870 0 0 0 8438 535 0 0 25 0 1 0 22099205 759623680 171030 4294967295 134512640 135987407 3221224560 3221125532 134636982 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 185455 171030 364 364 0 185091 0
[pid=8899] vsize: 741820
Current children cumulated CPU time (s) 89.73
Current children cumulated vsize (Kb) 741820

[startup+100.004 s]
Raw data (loadavg): 0.97 0.96 0.96 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 275349 0 0 0 9407 565 0 0 25 0 1 0 22099205 829767680 185333 4294967295 134512640 135987407 3221224560 3221129900 134636966 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 202580 185333 364 364 0 202216 0
[pid=8899] vsize: 810320
Current children cumulated CPU time (s) 99.72
Current children cumulated vsize (Kb) 810320
One traced child (pid=8899) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 108.874
CPU time (s): 108.589
CPU user time (s): 102.505
CPU system time (s): 6.08408
CPU usage (%): 99.7384
Max. virtual memory (cumulated for all children) (Kb): 810320

Verifier Data

ERROR: no interpretation found !