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-biella1.opb
MD5SUM4e03f8e015510f52ff53e17d84030db1
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 6605302314393600
Optimality of the best value was proved NO
Number of terms in the objective function 42650
Biggest coefficient in the objective function 536870912000000000000
Number of bits for the biggest coefficient in the objective function 69
Sum of the numbers in the objective function 4779625155602030788608
Number of bits of the sum of numbers in the objective function 73
Biggest number in a constraint 536870912000000000000
Number of bits of the biggest number in a constraint 69
Biggest sum of numbers in a constraint 4779727555602030788608
Number of bits of the biggest sum of numbers73
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1229.28
Number of variables42650
Total number of constraints7313
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)6111
Number of constraints which are nor clauses,nor cardinality constraints1202
Minimum length of a constraint1
Maximum length of a constraint42650

Trace number 10193

Launcher Data

LAUNCH ON wulflinc12 THE 2005-09-23 17:33:41 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8954 boxname=wulflinc12 idbench=750 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  4e03f8e015510f52ff53e17d84030db1  /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-20-10-biella1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-20-10-biella1.opb
IDLAUNCH: 8954
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        939824 kB
Buffers:          6232 kB
Cached:          68840 kB
SwapCached:          0 kB
Active:          22300 kB
Inactive:        55628 kB
HighTotal:      131008 kB
HighFree:        80164 kB
LowTotal:       903652 kB
LowFree:        859660 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11328 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:35:48 (client local time) WITH STATUS 0 IN 124.303 SECONDS
stats: 8954 7 124.303 0

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
s UNKNOWN

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/9874/stat): 9874 (pb2sat) R 9873 9874 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22021246 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9874/statm): 373 2 364 364 0 9 0
[pid=9874] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-20-10-biella1.opb

[startup+10.0021 s]
Raw data (loadavg): 0.93 0.94 0.94 2/55 9874
Raw data (/proc/9874/stat): 9874 (pb2sat) R 9873 9874 4060 0 -1 0 2510 0 0 0 993 5 0 0 25 0 1 0 22021246 9367552 1824 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9874/statm): 2287 1824 364 364 0 1923 0
[pid=9874] vsize: 9148
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 9148

[startup+20.002 s]
Raw data (loadavg): 0.94 0.94 0.94 2/55 9874
Raw data (/proc/9874/stat): 9874 (pb2sat) R 9873 9874 4060 0 -1 0 3022 0 0 0 1991 7 0 0 25 0 1 0 22021246 10719232 2327 4294967295 134512640 135987407 3221224560 3221221872 134555868 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9874/statm): 2617 2327 364 364 0 2253 0
[pid=9874] vsize: 10468
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 10468

[startup+30.0028 s]
Raw data (loadavg): 0.95 0.94 0.94 2/55 9874
Raw data (/proc/9874/stat): 9874 (pb2sat) R 9873 9874 4060 0 -1 0 4414 0 0 0 2987 10 0 0 25 0 1 0 22021246 15765504 2974 4294967295 134512640 135987407 3221224560 3221221616 134864390 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9874/statm): 3849 2974 364 364 0 3485 0
[pid=9874] vsize: 15396
Current children cumulated CPU time (s) 29.97
Current children cumulated vsize (Kb) 15396

[startup+40.0037 s]
Raw data (loadavg): 0.95 0.94 0.94 2/55 9874
Raw data (/proc/9874/stat): 9874 (pb2sat) R 9873 9874 4060 0 -1 0 7515 0 0 0 3977 19 0 0 25 0 1 0 22021246 25395200 5327 4294967295 134512640 135987407 3221224560 3221221316 135479957 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9874/statm): 6200 5327 364 364 0 5836 0
[pid=9874] vsize: 24800
Current children cumulated CPU time (s) 39.96
Current children cumulated vsize (Kb) 24800

[startup+50.0045 s]
Raw data (loadavg): 0.96 0.94 0.94 2/55 9874
Raw data (/proc/9874/stat): 9874 (pb2sat) R 9873 9874 4060 0 -1 0 39930 0 0 0 4898 96 0 0 25 0 1 0 22021246 119734272 23623 4294967295 134512640 135987407 3221224560 3221205488 135486786 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9874/statm): 29232 23623 364 364 0 28868 0
[pid=9874] vsize: 116928
Current children cumulated CPU time (s) 49.94
Current children cumulated vsize (Kb) 116928

[startup+60.0053 s]
Raw data (loadavg): 0.97 0.94 0.94 2/55 9874
Raw data (/proc/9874/stat): 9874 (pb2sat) R 9873 9874 4060 0 -1 0 75186 0 0 0 5822 169 0 0 25 0 1 0 22021246 262045696 51994 4294967295 134512640 135987407 3221224560 3221205056 134892990 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9874/statm): 63976 51994 364 364 0 63612 0
[pid=9874] vsize: 255904
Current children cumulated CPU time (s) 59.91
Current children cumulated vsize (Kb) 255904

[startup+70.0052 s]
Raw data (loadavg): 0.97 0.95 0.94 2/55 9874
Raw data (/proc/9874/stat): 9874 (pb2sat) R 9873 9874 4060 0 -1 0 102719 0 0 0 6750 240 0 0 25 0 1 0 22021246 316428288 57776 4294967295 134512640 135987407 3221224560 3221213820 135480487 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9874/statm): 77253 57776 364 364 0 76889 0
[pid=9874] vsize: 309012
Current children cumulated CPU time (s) 69.9
Current children cumulated vsize (Kb) 309012

[startup+80.006 s]
Raw data (loadavg): 0.98 0.95 0.94 2/55 9874
Raw data (/proc/9874/stat): 9874 (pb2sat) R 9873 9874 4060 0 -1 0 126511 0 0 0 7697 292 0 0 25 0 1 0 22021246 476348416 81055 4294967295 134512640 135987407 3221224560 3221207072 134856702 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9874/statm): 116296 81055 364 364 0 115932 0
[pid=9874] vsize: 465184
Current children cumulated CPU time (s) 79.89
Current children cumulated vsize (Kb) 465184

[startup+90.0059 s]
Raw data (loadavg): 0.98 0.95 0.94 2/55 9874
Raw data (/proc/9874/stat): 9874 (pb2sat) R 9873 9874 4060 0 -1 0 185302 0 0 0 8567 420 0 0 25 0 1 0 22021246 550719488 95893 4294967295 134512640 135987407 3221224560 3221197696 135477294 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9874/statm): 134453 95893 364 364 0 134089 0
[pid=9874] vsize: 537812
Current children cumulated CPU time (s) 89.87
Current children cumulated vsize (Kb) 537812

[startup+100.007 s]
Raw data (loadavg): 0.98 0.95 0.94 2/55 9874
Raw data (/proc/9874/stat): 9874 (pb2sat) R 9873 9874 4060 0 -1 0 200368 0 0 0 9528 458 0 0 25 0 1 0 22021246 588464128 110710 4294967295 134512640 135987407 3221224560 3221172304 134537363 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9874/statm): 143668 110710 364 364 0 143304 0
[pid=9874] vsize: 574672
Current children cumulated CPU time (s) 99.86
Current children cumulated vsize (Kb) 574672

[startup+110.008 s]
Raw data (loadavg): 0.98 0.95 0.94 2/55 9874
Raw data (/proc/9874/stat): 9874 (pb2sat) R 9873 9874 4060 0 -1 0 217494 0 0 0 10481 505 0 0 25 0 1 0 22021246 593334272 127554 4294967295 134512640 135987407 3221224560 3221208928 134639141 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9874/statm): 144857 127554 364 364 0 144493 0
[pid=9874] vsize: 579428
Current children cumulated CPU time (s) 109.86
Current children cumulated vsize (Kb) 579428

[startup+120.007 s]
Raw data (loadavg): 0.99 0.95 0.94 2/55 9874
Raw data (/proc/9874/stat): 9874 (pb2sat) R 9873 9874 4060 0 -1 0 231268 0 0 0 11444 541 0 0 25 0 1 0 22021246 647450624 141101 4294967295 134512640 135987407 3221224560 3221207632 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9874/statm): 158069 141101 364 364 0 157705 0
[pid=9874] vsize: 632276
Current children cumulated CPU time (s) 119.85
Current children cumulated vsize (Kb) 632276



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+124.09 s]
Raw data (loadavg): 0.99 0.95 0.94 1/55 9874
Raw data (/proc/9874/stat): 9874 (pb2sat) T 9873 9874 4060 0 -1 0 243034 0 0 0 11828 564 0 0 25 0 1 0 22021246 943751168 152583 4294967295 134512640 135987407 3221224560 3221213180 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/9874/statm): 230408 152583 364 364 0 230044 0
[pid=9874] vsize: 921632
Current children cumulated CPU time (s) 123.92
Current children cumulated vsize (Kb) 921632

Sending SIGTERM to -9874
Sleeping 2 seconds
Sending SIGKILL to -9874
One traced child (pid=9874) ended because it received signal 9 (SIGKILL)
All traced children have exited ! Game is over.

Child ended because it received signal 9 (SIGKILL)
Real time (s): 126.41
CPU time (s): 124.303
CPU user time (s): 118.34
CPU system time (s): 5.96309
CPU usage (%): 98.3333
Max. virtual memory (cumulated for all children) (Kb): 921632

Verifier Data

ERROR: no interpretation found !