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-roll3000.opb
MD5SUMb5e0cd2fd527d211d525adea6c422112
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 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 1024000000000
Number of bits of the biggest number in a constraint 40
Biggest sum of numbers in a constraint 2123511627775
Number of bits of the biggest sum of numbers41
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables8902
Total number of constraints3459
Number of constraints which are clauses143
Number of constraints which are cardinality constraints (but not clauses)626
Number of constraints which are nor clauses,nor cardinality constraints2690
Minimum length of a constraint1
Maximum length of a constraint2407

Trace number 10218

Launcher Data

LAUNCH ON wulflinc6 THE 2005-09-23 17:39:21 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8972 boxname=wulflinc6 idbench=768 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b5e0cd2fd527d211d525adea6c422112  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-roll3000.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-roll3000.opb
IDLAUNCH: 8972
/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:        919640 kB
Buffers:         13380 kB
Cached:          84064 kB
SwapCached:          0 kB
Active:          43868 kB
Inactive:        56464 kB
HighTotal:      131008 kB
HighFree:        43484 kB
LowTotal:       903652 kB
LowFree:        876156 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             9036 kB
Committed_AS:    63632 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:40:53 (client local time) WITH STATUS 0 IN 89.3964 SECONDS
stats: 8972 7 89.3964 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/9545/stat): 9545 (pb2sat) R 9544 9545 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22070388 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9545/statm): 373 2 364 364 0 9 0
[pid=9545] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-roll3000.opb

[startup+10.0019 s]
Raw data (loadavg): 0.92 0.95 0.90 2/55 9545
Raw data (/proc/9545/stat): 9545 (pb2sat) R 9544 9545 4060 0 -1 0 27407 0 0 0 933 64 0 0 25 0 1 0 22070388 80592896 16258 4294967295 134512640 135987407 3221224560 3221158856 134637038 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9545/statm): 19676 16258 364 364 0 19312 0
[pid=9545] vsize: 78704
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 78704

[startup+20.0027 s]
Raw data (loadavg): 0.93 0.96 0.91 2/55 9545
Raw data (/proc/9545/stat): 9545 (pb2sat) R 9544 9545 4060 0 -1 0 56366 0 0 0 1868 129 0 0 25 0 1 0 22070388 158171136 33961 4294967295 134512640 135987407 3221224560 3221173788 135499903 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9545/statm): 38616 33961 364 364 0 38252 0
[pid=9545] vsize: 154464
Current children cumulated CPU time (s) 19.97
Current children cumulated vsize (Kb) 154464

[startup+30.0035 s]
Raw data (loadavg): 0.94 0.96 0.91 2/55 9545
Raw data (/proc/9545/stat): 9545 (pb2sat) R 9544 9545 4060 0 -1 0 96647 0 0 0 2775 219 0 0 25 0 1 0 22070388 308461568 52024 4294967295 134512640 135987407 3221224560 3221192112 134802855 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9545/statm): 75308 52024 364 364 0 74944 0
[pid=9545] vsize: 301232
Current children cumulated CPU time (s) 29.94
Current children cumulated vsize (Kb) 301232

[startup+40.0042 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 9545
Raw data (/proc/9545/stat): 9545 (pb2sat) R 9544 9545 4060 0 -1 0 114224 0 0 0 3731 262 0 0 25 0 1 0 22070388 313327616 69311 4294967295 134512640 135987407 3221224560 3221187012 135477877 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9545/statm): 76496 69311 364 364 0 76132 0
[pid=9545] vsize: 305984
Current children cumulated CPU time (s) 39.93
Current children cumulated vsize (Kb) 305984

[startup+50.0049 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 9545
Raw data (/proc/9545/stat): 9545 (pb2sat) R 9544 9545 4060 0 -1 0 179593 0 0 0 4586 403 0 0 25 0 1 0 22070388 542609408 90497 4294967295 134512640 135987407 3221224560 3221183756 134559721 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9545/statm): 132473 90497 364 364 0 132109 0
[pid=9545] vsize: 529892
Current children cumulated CPU time (s) 49.89
Current children cumulated vsize (Kb) 529892

[startup+60.0057 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 9545
Raw data (/proc/9545/stat): 9545 (pb2sat) R 9544 9545 4060 0 -1 0 194835 0 0 0 5547 441 0 0 25 0 1 0 22070388 580354048 105488 4294967295 134512640 135987407 3221224560 3221221904 134612690 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9545/statm): 141688 105488 364 364 0 141324 0
[pid=9545] vsize: 566752
Current children cumulated CPU time (s) 59.88
Current children cumulated vsize (Kb) 566752

[startup+70.0064 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 9545
Raw data (/proc/9545/stat): 9545 (pb2sat) R 9544 9545 4060 0 -1 0 211072 0 0 0 6506 482 0 0 25 0 1 0 22070388 584949760 121456 4294967295 134512640 135987407 3221224560 3221221952 134616323 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9545/statm): 142810 121456 364 364 0 142446 0
[pid=9545] vsize: 571240
Current children cumulated CPU time (s) 69.88
Current children cumulated vsize (Kb) 571240

[startup+80.0072 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 9545
Raw data (/proc/9545/stat): 9545 (pb2sat) R 9544 9545 4060 0 -1 0 228186 0 0 0 7466 520 0 0 25 0 1 0 22070388 657539072 138364 4294967295 134512640 135987407 3221224560 3220804880 134856587 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9545/statm): 160532 138364 364 364 0 160168 0
[pid=9545] vsize: 642128
Current children cumulated CPU time (s) 79.86
Current children cumulated vsize (Kb) 642128



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+89.2126 s]
Raw data (loadavg): 0.98 0.96 0.91 1/55 9545
Raw data (/proc/9545/stat): 9545 (pb2sat) T 9544 9545 4060 0 -1 0 245712 0 0 0 8347 559 0 0 25 0 1 0 22070388 963166208 155669 4294967295 134512640 135987407 3221224560 3220550736 135544035 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/9545/statm): 235148 155669 364 364 0 234784 0
[pid=9545] vsize: 940592
Current children cumulated CPU time (s) 89.06
Current children cumulated vsize (Kb) 940592

Sending SIGTERM to -9545
Sleeping 2 seconds

[startup+90.0079 s]
Raw data (loadavg): 0.98 0.96 0.91 1/56 9546
Raw data (/proc/9545/stat): 9545 (pb2sat) S 9544 9545 4060 0 -1 0 245713 0 0 0 8348 559 0 0 25 0 1 0 22070388 963166208 155670 4294967295 134512640 135987407 3221224560 3220549336 135549753 0 16384 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9545/statm): 235148 155670 364 364 0 234784 0
[pid=9545] vsize: 940592
Current children cumulated CPU time (s) 89.07
Current children cumulated vsize (Kb) 940592
Sending SIGKILL to -9545
One traced child (pid=9545) 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): 91.5376
CPU time (s): 89.3964
CPU user time (s): 83.4833
CPU system time (s): 5.9131
CPU usage (%): 97.6608
Max. virtual memory (cumulated for all children) (Kb): 940592

Verifier Data

ERROR: no interpretation found !