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/plato.asu.edu/pub/unibo/normalized-mps-v2-20-10-net12.opb
MD5SUM8fd050825d75dbe16d9da083f4b2fd63
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 8257573732279
Optimality of the best value was proved NO
Number of terms in the objective function 478
Biggest coefficient in the objective function 536870912000000
Number of bits for the biggest coefficient in the objective function 49
Sum of the numbers in the objective function 1073761158741413
Number of bits of the sum of numbers in the objective function 50
Biggest number in a constraint 71583145981965762560
Number of bits of the biggest number in a constraint 66
Biggest sum of numbers in a constraint 303620978593259257856
Number of bits of the biggest sum of numbers69
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1269.78
Number of variables780
Total number of constraints707
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)338
Number of constraints which are nor clauses,nor cardinality constraints369
Minimum length of a constraint1
Maximum length of a constraint101

Trace number 10216

Launcher Data

LAUNCH ON wulflinc26 THE 2005-09-23 17:39:00 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8968 boxname=wulflinc26 idbench=764 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  8fd050825d75dbe16d9da083f4b2fd63  /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-20-10-net12.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-20-10-net12.opb
IDLAUNCH: 8968
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.055
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		: 451.055
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:        911696 kB
Buffers:         11708 kB
Cached:          93896 kB
SwapCached:          0 kB
Active:          44728 kB
Inactive:        63764 kB
HighTotal:      131008 kB
HighFree:        42140 kB
LowTotal:       903652 kB
LowFree:        869556 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8824 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:40:39 (client local time) WITH STATUS 1 IN 98.48 SECONDS
stats: 8968 7 98.48 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/8847/stat): 8847 (pb2sat) R 8846 8847 4005 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22017145 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8847/statm): 373 2 364 364 0 9 0
[pid=8847] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-20-10-net12.opb

[startup+10.0012 s]
Raw data (loadavg): 0.96 1.00 0.93 2/55 8847
Raw data (/proc/8847/stat): 8847 (pb2sat) R 8846 8847 4005 0 -1 0 31309 0 0 0 925 70 0 0 25 0 1 0 22017145 99643392 20100 4294967295 134512640 135987407 3221224560 3221187920 134866800 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8847/statm): 24327 20100 364 364 0 23963 0
[pid=8847] vsize: 97308
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 97308

[startup+20.0019 s]
Raw data (loadavg): 0.96 1.00 0.93 2/55 8847
Raw data (/proc/8847/stat): 8847 (pb2sat) R 8846 8847 4005 0 -1 0 62429 0 0 0 1855 137 0 0 25 0 1 0 22017145 197279744 39679 4294967295 134512640 135987407 3221224560 3221188096 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8847/statm): 48164 39679 364 364 0 47800 0
[pid=8847] vsize: 192656
Current children cumulated CPU time (s) 19.92
Current children cumulated vsize (Kb) 192656

[startup+30.0025 s]
Raw data (loadavg): 0.97 1.00 0.93 2/55 8847
Raw data (/proc/8847/stat): 8847 (pb2sat) R 8846 8847 4005 0 -1 0 104726 0 0 0 2765 223 0 0 25 0 1 0 22017145 381898752 71372 4294967295 134512640 135987407 3221224560 3221188816 134887489 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8847/statm): 93237 71372 364 364 0 92873 0
[pid=8847] vsize: 372948
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 372948

[startup+40.0032 s]
Raw data (loadavg): 0.97 1.00 0.93 2/55 8847
Raw data (/proc/8847/stat): 8847 (pb2sat) R 8846 8847 4005 0 -1 0 124037 0 0 0 3715 271 0 0 25 0 1 0 22017145 391745536 78157 4294967295 134512640 135987407 3221224560 3221188608 134864415 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8847/statm): 95641 78157 364 364 0 95277 0
[pid=8847] vsize: 382564
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 382564

[startup+50.0039 s]
Raw data (loadavg): 0.98 1.00 0.93 2/55 8847
Raw data (/proc/8847/stat): 8847 (pb2sat) R 8846 8847 4005 0 -1 0 168550 0 0 0 4623 357 0 0 25 0 1 0 22017145 533254144 101500 4294967295 134512640 135987407 3221224560 3221187612 135481322 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8847/statm): 130189 101500 364 364 0 129825 0
[pid=8847] vsize: 520756
Current children cumulated CPU time (s) 49.8
Current children cumulated vsize (Kb) 520756

[startup+60.0036 s]
Raw data (loadavg): 0.98 1.00 0.93 2/55 8847
Raw data (/proc/8847/stat): 8847 (pb2sat) R 8846 8847 4005 0 -1 0 191639 0 0 0 5571 405 0 0 25 0 1 0 22017145 762564608 124339 4294967295 134512640 135987407 3221224560 3221187808 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8847/statm): 186173 124339 364 364 0 185809 0
[pid=8847] vsize: 744692
Current children cumulated CPU time (s) 59.76
Current children cumulated vsize (Kb) 744692

[startup+70.0043 s]
Raw data (loadavg): 0.98 1.00 0.93 2/55 8847
Raw data (/proc/8847/stat): 8847 (pb2sat) R 8846 8847 4005 0 -1 0 229405 0 0 0 6478 496 0 0 25 0 1 0 22017145 686903296 137302 4294967295 134512640 135987407 3221224560 3221188936 134931009 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8847/statm): 167701 137302 364 364 0 167337 0
[pid=8847] vsize: 670804
Current children cumulated CPU time (s) 69.74
Current children cumulated vsize (Kb) 670804

[startup+80.005 s]
Raw data (loadavg): 0.98 1.00 0.93 2/55 8847
Raw data (/proc/8847/stat): 8847 (pb2sat) R 8846 8847 4005 0 -1 0 245692 0 0 0 7439 533 0 0 25 0 1 0 22017145 744382464 153375 4294967295 134512640 135987407 3221224560 3221188588 135499903 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8847/statm): 181734 153375 364 364 0 181370 0
[pid=8847] vsize: 726936
Current children cumulated CPU time (s) 79.72
Current children cumulated vsize (Kb) 726936

[startup+90.0057 s]
Raw data (loadavg): 0.99 1.00 0.93 2/55 8847
Raw data (/proc/8847/stat): 8847 (pb2sat) R 8846 8847 4005 0 -1 0 265072 0 0 0 8392 577 0 0 25 0 1 0 22017145 772870144 172501 4294967295 134512640 135987407 3221224560 3221188720 135486820 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8847/statm): 188689 172501 364 364 0 188325 0
[pid=8847] vsize: 754756
Current children cumulated CPU time (s) 89.69
Current children cumulated vsize (Kb) 754756
One traced child (pid=8847) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 98.7892
CPU time (s): 98.48
CPU user time (s): 92.272
CPU system time (s): 6.20806
CPU usage (%): 99.6871
Max. virtual memory (cumulated for all children) (Kb): 754756

Verifier Data

ERROR: no interpretation found !