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-dc1c.opb
MD5SUMbd6d0785955b31f4cbdede5ce3d2b1e9
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1019998949514424320
Optimality of the best value was proved NO
Number of terms in the objective function 58150
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 6807821537690881359872
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 6808845537690881359872
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 benchmark1232.03
Number of variables58150
Total number of constraints10029
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)8381
Number of constraints which are nor clauses,nor cardinality constraints1648
Minimum length of a constraint1
Maximum length of a constraint58150

Trace number 10214

Launcher Data

LAUNCH ON wulflinc2 THE 2005-09-23 17:37:35 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8963 boxname=wulflinc2 idbench=759 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  bd6d0785955b31f4cbdede5ce3d2b1e9  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-dc1c.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-dc1c.opb
IDLAUNCH: 8963
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.261
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		: 451.261
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:        889796 kB
Buffers:         17036 kB
Cached:         107812 kB
SwapCached:          0 kB
Active:          51592 kB
Inactive:        76200 kB
HighTotal:      131008 kB
HighFree:        27048 kB
LowTotal:       903652 kB
LowFree:        862748 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11488 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:40:27 (client local time) WITH STATUS 0 IN 169.885 SECONDS
stats: 8963 7 169.885 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/9893/stat): 9893 (pb2sat) R 9892 9893 4070 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22063752 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9893/statm): 373 2 364 364 0 9 0
[pid=9893] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-dc1c.opb

[startup+10.0027 s]
Raw data (loadavg): 0.87 0.95 0.98 2/55 9893
Raw data (/proc/9893/stat): 9893 (pb2sat) R 9892 9893 4070 0 -1 0 2479 0 0 0 991 7 0 0 25 0 1 0 22063752 9367552 1793 4294967295 134512640 135987407 3221224560 3221221872 134555870 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9893/statm): 2287 1793 364 364 0 1923 0
[pid=9893] vsize: 9148
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 9148

[startup+20.0034 s]
Raw data (loadavg): 0.89 0.95 0.98 2/55 9893
Raw data (/proc/9893/stat): 9893 (pb2sat) R 9892 9893 4070 0 -1 0 2992 0 0 0 1989 9 0 0 25 0 1 0 22063752 10584064 2298 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9893/statm): 2584 2298 364 364 0 2220 0
[pid=9893] vsize: 10336
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 10336

[startup+30.0031 s]
Raw data (loadavg): 0.91 0.96 0.98 2/55 9893
Raw data (/proc/9893/stat): 9893 (pb2sat) R 9892 9893 4070 0 -1 0 4384 0 0 0 2985 12 0 0 25 0 1 0 22063752 15630336 2945 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9893/statm): 3816 2945 364 364 0 3452 0
[pid=9893] vsize: 15264
Current children cumulated CPU time (s) 29.97
Current children cumulated vsize (Kb) 15264

[startup+40.0038 s]
Raw data (loadavg): 0.92 0.96 0.98 2/55 9893
Raw data (/proc/9893/stat): 9893 (pb2sat) R 9892 9893 4070 0 -1 0 4673 0 0 0 3984 13 0 0 25 0 1 0 22063752 16306176 3229 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9893/statm): 3981 3229 364 364 0 3617 0
[pid=9893] vsize: 15924
Current children cumulated CPU time (s) 39.97
Current children cumulated vsize (Kb) 15924

[startup+50.0045 s]
Raw data (loadavg): 0.93 0.96 0.98 2/55 9893
Raw data (/proc/9893/stat): 9893 (pb2sat) R 9892 9893 4070 0 -1 0 4932 0 0 0 4983 14 0 0 25 0 1 0 22063752 16982016 3484 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9893/statm): 4146 3484 364 364 0 3782 0
[pid=9893] vsize: 16584
Current children cumulated CPU time (s) 49.97
Current children cumulated vsize (Kb) 16584

[startup+60.0052 s]
Raw data (loadavg): 0.94 0.96 0.98 2/55 9893
Raw data (/proc/9893/stat): 9893 (pb2sat) R 9892 9893 4070 0 -1 0 5160 0 0 0 5982 15 0 0 25 0 1 0 22063752 17657856 3708 4294967295 134512640 135987407 3221224560 3221221872 134555861 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9893/statm): 4311 3708 364 364 0 3947 0
[pid=9893] vsize: 17244
Current children cumulated CPU time (s) 59.97
Current children cumulated vsize (Kb) 17244

[startup+70.0059 s]
Raw data (loadavg): 0.95 0.96 0.98 2/55 9893
Raw data (/proc/9893/stat): 9893 (pb2sat) R 9892 9893 4070 0 -1 0 5365 0 0 0 6982 15 0 0 25 0 1 0 22063752 18063360 3910 4294967295 134512640 135987407 3221224560 3221221872 134555861 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9893/statm): 4410 3910 364 364 0 4046 0
[pid=9893] vsize: 17640
Current children cumulated CPU time (s) 69.97
Current children cumulated vsize (Kb) 17640

[startup+80.0056 s]
Raw data (loadavg): 0.96 0.96 0.98 2/55 9893
Raw data (/proc/9893/stat): 9893 (pb2sat) R 9892 9893 4070 0 -1 0 5556 0 0 0 7981 15 0 0 25 0 1 0 22063752 18604032 4098 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9893/statm): 4542 4098 364 364 0 4178 0
[pid=9893] vsize: 18168
Current children cumulated CPU time (s) 79.96
Current children cumulated vsize (Kb) 18168

[startup+90.0064 s]
Raw data (loadavg): 0.96 0.96 0.98 2/55 9893
Raw data (/proc/9893/stat): 9893 (pb2sat) R 9892 9893 4070 0 -1 0 29476 0 0 0 8924 72 0 0 25 0 1 0 22063752 91013120 18081 4294967295 134512640 135987407 3221224560 3221207136 134861966 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9893/statm): 22220 18081 364 364 0 21856 0
[pid=9893] vsize: 88880
Current children cumulated CPU time (s) 89.96
Current children cumulated vsize (Kb) 88880

[startup+100.006 s]
Raw data (loadavg): 0.97 0.96 0.98 2/55 9893
Raw data (/proc/9893/stat): 9893 (pb2sat) R 9892 9893 4070 0 -1 0 58545 0 0 0 9858 135 0 0 25 0 1 0 22063752 169443328 35895 4294967295 134512640 135987407 3221224560 3221163952 134887877 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9893/statm): 41368 35895 364 364 0 41004 0
[pid=9893] vsize: 165472
Current children cumulated CPU time (s) 99.93
Current children cumulated vsize (Kb) 165472

[startup+110.008 s]
Raw data (loadavg): 0.97 0.96 0.98 2/55 9893
Raw data (/proc/9893/stat): 9893 (pb2sat) R 9892 9893 4070 0 -1 0 97906 0 0 0 10772 219 0 0 25 0 1 0 22063752 318246912 53048 4294967295 134512640 135987407 3221224560 3221184960 134557147 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9893/statm): 77697 53048 364 364 0 77333 0
[pid=9893] vsize: 310788
Current children cumulated CPU time (s) 109.91
Current children cumulated vsize (Kb) 310788

[startup+120.008 s]
Raw data (loadavg): 0.98 0.96 0.98 2/55 9893
Raw data (/proc/9893/stat): 9893 (pb2sat) R 9892 9893 4070 0 -1 0 114677 0 0 0 11730 260 0 0 25 0 1 0 22063752 324902912 69552 4294967295 134512640 135987407 3221224560 3221135864 135488127 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9893/statm): 79322 69552 364 364 0 78958 0
[pid=9893] vsize: 317288
Current children cumulated CPU time (s) 119.9
Current children cumulated vsize (Kb) 317288

[startup+130.009 s]
Raw data (loadavg): 0.98 0.97 0.98 2/55 9893
Raw data (/proc/9893/stat): 9893 (pb2sat) R 9892 9893 4070 0 -1 0 163234 0 0 0 12629 357 0 0 25 0 1 0 22063752 655261696 98497 4294967295 134512640 135987407 3221224560 3221195168 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9893/statm): 159976 98497 364 364 0 159612 0
[pid=9893] vsize: 639904
Current children cumulated CPU time (s) 129.86
Current children cumulated vsize (Kb) 639904

[startup+140.01 s]
Raw data (loadavg): 0.98 0.97 0.98 2/55 9893
Raw data (/proc/9893/stat): 9893 (pb2sat) R 9892 9893 4070 0 -1 0 192740 0 0 0 13561 425 0 0 25 0 1 0 22063752 591527936 103226 4294967295 134512640 135987407 3221224560 3221161036 135480487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9893/statm): 144416 103226 364 364 0 144052 0
[pid=9893] vsize: 577664
Current children cumulated CPU time (s) 139.86
Current children cumulated vsize (Kb) 577664

[startup+150.011 s]
Raw data (loadavg): 0.98 0.97 0.98 2/55 9893
Raw data (/proc/9893/stat): 9893 (pb2sat) R 9892 9893 4070 0 -1 0 208977 0 0 0 14521 464 0 0 25 0 1 0 22063752 595447808 119194 4294967295 134512640 135987407 3221224560 3221208640 134560586 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9893/statm): 145373 119194 364 364 0 145009 0
[pid=9893] vsize: 581492
Current children cumulated CPU time (s) 149.85
Current children cumulated vsize (Kb) 581492

[startup+160.011 s]
Raw data (loadavg): 0.99 0.97 0.98 2/55 9893
Raw data (/proc/9893/stat): 9893 (pb2sat) R 9892 9893 4070 0 -1 0 225309 0 0 0 15484 501 0 0 25 0 1 0 22063752 650104832 135257 4294967295 134512640 135987407 3221224560 3221207728 134877628 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9893/statm): 158717 135257 364 364 0 158353 0
[pid=9893] vsize: 634868
Current children cumulated CPU time (s) 159.85
Current children cumulated vsize (Kb) 634868



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+169.657 s]
Raw data (loadavg): 0.99 0.97 0.98 1/55 9893
Raw data (/proc/9893/stat): 9893 (pb2sat) T 9892 9893 4070 0 -1 0 241349 0 0 0 16409 540 0 0 25 0 1 0 22063752 943837184 150985 4294967295 134512640 135987407 3221224560 3221211164 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/9893/statm): 230429 150985 364 364 0 230065 0
[pid=9893] vsize: 921716
Current children cumulated CPU time (s) 169.49
Current children cumulated vsize (Kb) 921716

Sending SIGTERM to -9893
Sleeping 2 seconds

[startup+170.012 s]
Raw data (loadavg): 0.99 0.97 0.98 1/56 9894
Raw data (/proc/9893/stat): 9893 (pb2sat) S 9892 9893 4070 0 -1 0 241350 0 0 0 16417 540 0 0 25 0 1 0 22063752 943837184 150986 4294967295 134512640 135987407 3221224560 3221209912 135549753 0 16384 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9893/statm): 230429 150986 364 364 0 230065 0
[pid=9893] vsize: 921716
Current children cumulated CPU time (s) 169.57
Current children cumulated vsize (Kb) 921716
Sending SIGKILL to -9893
One traced child (pid=9893) 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): 171.974
CPU time (s): 169.885
CPU user time (s): 164.171
CPU system time (s): 5.71413
CPU usage (%): 98.7856
Max. virtual memory (cumulated for all children) (Kb): 921716

Verifier Data

ERROR: no interpretation found !