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-A1C1S1.opb
MD5SUM4ceb0b03b7e8a29fb578fb77c2b349b0
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 37632
Biggest coefficient in the objective function 31125091123200
Number of bits for the biggest coefficient in the objective function 45
Sum of the numbers in the objective function 14624065344515792
Number of bits of the sum of numbers in the objective function 54
Biggest number in a constraint 31125091123200
Number of bits of the biggest number in a constraint 45
Biggest sum of numbers in a constraint 14624065344515792
Number of bits of the biggest sum of numbers54
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables103872
Total number of constraints3504
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)192
Number of constraints which are nor clauses,nor cardinality constraints3312
Minimum length of a constraint1
Maximum length of a constraint725

Trace number 10237

Launcher Data

LAUNCH ON wulflinc6 THE 2005-09-23 17:41:02 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8983 boxname=wulflinc6 idbench=779 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  4ceb0b03b7e8a29fb578fb77c2b349b0  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-A1C1S1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-A1C1S1.opb
IDLAUNCH: 8983
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.158
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		: 451.158
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:        914436 kB
Buffers:         13412 kB
Cached:          89268 kB
SwapCached:          0 kB
Active:          48520 kB
Inactive:        57040 kB
HighTotal:      131008 kB
HighFree:        38304 kB
LowTotal:       903652 kB
LowFree:        876132 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             9100 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:43:06 (client local time) WITH STATUS 0 IN 121.262 SECONDS
stats: 8983 7 121.262 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/9657/stat): 9657 (pb2sat) R 9656 9657 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22080530 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9657/statm): 373 2 364 364 0 9 0
[pid=9657] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-A1C1S1.opb

[startup+10.0021 s]
Raw data (loadavg): 0.85 0.93 0.90 2/55 9657
Raw data (/proc/9657/stat): 9657 (pb2sat) R 9656 9657 4060 0 -1 0 2576 0 0 0 992 7 0 0 25 0 1 0 22080530 9641984 1889 4294967295 134512640 135987407 3221224560 3221221864 134639648 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9657/statm): 2354 1889 364 364 0 1990 0
[pid=9657] vsize: 9416
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (Kb) 9416

[startup+20.0029 s]
Raw data (loadavg): 0.87 0.93 0.90 2/55 9657
Raw data (/proc/9657/stat): 9657 (pb2sat) R 9656 9657 4060 0 -1 0 4196 0 0 0 1986 11 0 0 25 0 1 0 22080530 15228928 2761 4294967295 134512640 135987407 3221224560 3221221872 134555852 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9657/statm): 3718 2761 364 364 0 3354 0
[pid=9657] vsize: 14872
Current children cumulated CPU time (s) 19.97
Current children cumulated vsize (Kb) 14872

[startup+30.0036 s]
Raw data (loadavg): 0.89 0.94 0.90 2/55 9657
Raw data (/proc/9657/stat): 9657 (pb2sat) R 9656 9657 4060 0 -1 0 13231 0 0 0 2964 33 0 0 25 0 1 0 22080530 42360832 9021 4294967295 134512640 135987407 3221224560 3221004208 134878572 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9657/statm): 10342 9021 364 364 0 9978 0
[pid=9657] vsize: 41368
Current children cumulated CPU time (s) 29.97
Current children cumulated vsize (Kb) 41368

[startup+40.0044 s]
Raw data (loadavg): 0.91 0.94 0.90 2/55 9657
Raw data (/proc/9657/stat): 9657 (pb2sat) R 9656 9657 4060 0 -1 0 53385 0 0 0 3877 117 0 0 25 0 1 0 22080530 168792064 30909 4294967295 134512640 135987407 3221224560 3221081748 134635336 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9657/statm): 41209 30909 364 364 0 40845 0
[pid=9657] vsize: 164836
Current children cumulated CPU time (s) 39.94
Current children cumulated vsize (Kb) 164836

[startup+50.0051 s]
Raw data (loadavg): 0.92 0.94 0.90 2/55 9657
Raw data (/proc/9657/stat): 9657 (pb2sat) R 9656 9657 4060 0 -1 0 81978 0 0 0 4817 174 0 0 25 0 1 0 22080530 289452032 58786 4294967295 134512640 135987407 3221224560 3221062688 134861437 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9657/statm): 70667 58786 364 364 0 70303 0
[pid=9657] vsize: 282668
Current children cumulated CPU time (s) 49.91
Current children cumulated vsize (Kb) 282668

[startup+60.0059 s]
Raw data (loadavg): 0.93 0.94 0.90 2/55 9657
Raw data (/proc/9657/stat): 9657 (pb2sat) R 9656 9657 4060 0 -1 0 107740 0 0 0 5758 232 0 0 25 0 1 0 22080530 345321472 62835 4294967295 134512640 135987407 3221224560 3220990860 135479965 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9657/statm): 84307 62835 364 364 0 83943 0
[pid=9657] vsize: 337228
Current children cumulated CPU time (s) 59.9
Current children cumulated vsize (Kb) 337228

[startup+70.0056 s]
Raw data (loadavg): 0.94 0.94 0.91 2/55 9657
Raw data (/proc/9657/stat): 9657 (pb2sat) R 9656 9657 4060 0 -1 0 123217 0 0 0 6723 266 0 0 25 0 1 0 22080530 348700672 78052 4294967295 134512640 135987407 3221224560 3221098748 134639872 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9657/statm): 85132 78052 364 364 0 84768 0
[pid=9657] vsize: 340528
Current children cumulated CPU time (s) 69.89
Current children cumulated vsize (Kb) 340528

[startup+80.0074 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 9657
Raw data (/proc/9657/stat): 9657 (pb2sat) R 9656 9657 4060 0 -1 0 186937 0 0 0 7584 402 0 0 25 0 1 0 22080530 577982464 97617 4294967295 134512640 135987407 3221224560 3221025292 134854860 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9657/statm): 141109 97617 364 364 0 140745 0
[pid=9657] vsize: 564436
Current children cumulated CPU time (s) 79.86
Current children cumulated vsize (Kb) 564436

[startup+90.0081 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 9657
Raw data (/proc/9657/stat): 9657 (pb2sat) R 9656 9657 4060 0 -1 0 200454 0 0 0 8552 433 0 0 25 0 1 0 22080530 615051264 110910 4294967295 134512640 135987407 3221224560 3221075532 134669203 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9657/statm): 150159 110910 364 364 0 149795 0
[pid=9657] vsize: 600636
Current children cumulated CPU time (s) 89.85
Current children cumulated vsize (Kb) 600636

[startup+100.008 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 9657
Raw data (/proc/9657/stat): 9657 (pb2sat) R 9656 9657 4060 0 -1 0 214846 0 0 0 9521 464 0 0 25 0 1 0 22080530 617754624 125057 4294967295 134512640 135987407 3221224560 3221053180 134854860 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9657/statm): 150819 125057 364 364 0 150455 0
[pid=9657] vsize: 603276
Current children cumulated CPU time (s) 99.85
Current children cumulated vsize (Kb) 603276

[startup+110.009 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 9657
Raw data (/proc/9657/stat): 9657 (pb2sat) R 9656 9657 4060 0 -1 0 229962 0 0 0 10491 494 0 0 25 0 1 0 22080530 622891008 139926 4294967295 134512640 135987407 3221224560 3221025252 135480412 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9657/statm): 152073 139926 364 364 0 151709 0
[pid=9657] vsize: 608292
Current children cumulated CPU time (s) 109.85
Current children cumulated vsize (Kb) 608292

[startup+120.009 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 9657
Raw data (/proc/9657/stat): 9657 (pb2sat) R 9656 9657 4060 0 -1 0 242885 0 0 0 11463 522 0 0 25 0 1 0 22080530 678088704 152642 4294967295 134512640 135987407 3221224560 3221101744 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9657/statm): 165549 152642 364 364 0 165185 0
[pid=9657] vsize: 662196
Current children cumulated CPU time (s) 119.85
Current children cumulated vsize (Kb) 662196



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+121.052 s]
Raw data (loadavg): 0.97 0.95 0.91 1/55 9657
Raw data (/proc/9657/stat): 9657 (pb2sat) T 9656 9657 4060 0 -1 0 244929 0 0 0 11561 527 0 0 25 0 1 0 22080530 965468160 154659 4294967295 134512640 135987407 3221224560 3221096064 135544035 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/9657/statm): 235710 154659 364 364 0 235346 0
[pid=9657] vsize: 942840
Current children cumulated CPU time (s) 120.88
Current children cumulated vsize (Kb) 942840

Sending SIGTERM to -9657
Sleeping 2 seconds
Sending SIGKILL to -9657
One traced child (pid=9657) 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): 123.372
CPU time (s): 121.262
CPU user time (s): 115.675
CPU system time (s): 5.58615
CPU usage (%): 98.2891
Max. virtual memory (cumulated for all children) (Kb): 942840

Verifier Data

ERROR: no interpretation found !