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-blp-ic98.opb
MD5SUM9ca02e5a1540510bce8e96ecb8f82d9c
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 83886080000000
Number of bits of the biggest number in a constraint 47
Biggest sum of numbers in a constraint 783292842349555
Number of bits of the biggest sum of numbers50
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables15501
Total number of constraints14313
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)14177
Number of constraints which are nor clauses,nor cardinality constraints136
Minimum length of a constraint1
Maximum length of a constraint13581

Trace number 10198

Launcher Data

LAUNCH ON wulflinc2 THE 2005-09-23 17:35:33 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8957 boxname=wulflinc2 idbench=753 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9ca02e5a1540510bce8e96ecb8f82d9c  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-blp-ic98.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-blp-ic98.opb
IDLAUNCH: 8957
/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:        884100 kB
Buffers:         17004 kB
Cached:         113624 kB
SwapCached:          0 kB
Active:          57840 kB
Inactive:        75648 kB
HighTotal:      131008 kB
HighFree:        21336 kB
LowTotal:       903652 kB
LowFree:        862764 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11488 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:37:26 (client local time) WITH STATUS 0 IN 110.39 SECONDS
stats: 8957 7 110.39 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/9781/stat): 9781 (pb2sat) R 9780 9781 4070 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22051539 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9781/statm): 373 2 364 364 0 9 0
[pid=9781] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-blp-ic98.opb

[startup+10.002 s]
Raw data (loadavg): 0.94 0.98 0.99 2/55 9781
Raw data (/proc/9781/stat): 9781 (pb2sat) R 9780 9781 4070 0 -1 0 14884 0 0 0 958 38 0 0 25 0 1 0 22051539 47271936 9353 4294967295 134512640 135987407 3221224560 3220390880 134892758 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9781/statm): 11541 9353 364 364 0 11177 0
[pid=9781] vsize: 46164
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 46164

[startup+20.0027 s]
Raw data (loadavg): 0.95 0.98 0.99 2/55 9781
Raw data (/proc/9781/stat): 9781 (pb2sat) R 9780 9781 4070 0 -1 0 46768 0 0 0 1884 109 0 0 25 0 1 0 22051539 144703488 24543 4294967295 134512640 135987407 3221224560 3220289636 134559711 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9781/statm): 35328 24543 364 364 0 34964 0
[pid=9781] vsize: 141312
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 141312

[startup+30.0034 s]
Raw data (loadavg): 0.95 0.98 0.99 2/55 9781
Raw data (/proc/9781/stat): 9781 (pb2sat) R 9780 9781 4070 0 -1 0 61644 0 0 0 2846 147 0 0 25 0 1 0 22051539 238194688 39151 4294967295 134512640 135987407 3221224560 3220629260 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9781/statm): 58153 39151 364 364 0 57789 0
[pid=9781] vsize: 232612
Current children cumulated CPU time (s) 29.93
Current children cumulated vsize (Kb) 232612

[startup+40.0041 s]
Raw data (loadavg): 0.96 0.98 0.99 2/55 9781
Raw data (/proc/9781/stat): 9781 (pb2sat) R 9780 9781 4070 0 -1 0 99145 0 0 0 3761 230 0 0 25 0 1 0 22051539 315015168 54501 4294967295 134512640 135987407 3221224560 3220877292 134669203 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9781/statm): 76908 54501 364 364 0 76544 0
[pid=9781] vsize: 307632
Current children cumulated CPU time (s) 39.91
Current children cumulated vsize (Kb) 307632

[startup+50.0048 s]
Raw data (loadavg): 0.97 0.98 0.99 2/55 9781
Raw data (/proc/9781/stat): 9781 (pb2sat) R 9780 9781 4070 0 -1 0 112788 0 0 0 4723 268 0 0 25 0 1 0 22051539 319070208 67919 4294967295 134512640 135987407 3221224560 3221221744 134536151 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9781/statm): 77898 67919 364 364 0 77534 0
[pid=9781] vsize: 311592
Current children cumulated CPU time (s) 49.91
Current children cumulated vsize (Kb) 311592

[startup+60.0055 s]
Raw data (loadavg): 0.97 0.98 0.99 2/55 9781
Raw data (/proc/9781/stat): 9781 (pb2sat) R 9780 9781 4070 0 -1 0 165368 0 0 0 5609 377 0 0 25 0 1 0 22051539 649154560 100891 4294967295 134512640 135987407 3221224560 3221159552 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9781/statm): 158485 100891 364 364 0 158121 0
[pid=9781] vsize: 633940
Current children cumulated CPU time (s) 59.86
Current children cumulated vsize (Kb) 633940

[startup+70.0062 s]
Raw data (loadavg): 0.97 0.98 0.99 2/55 9781
Raw data (/proc/9781/stat): 9781 (pb2sat) R 9780 9781 4070 0 -1 0 189300 0 0 0 6549 437 0 0 25 0 1 0 22051539 586096640 100067 4294967295 134512640 135987407 3221224560 3220339028 135479922 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9781/statm): 143090 100067 364 364 0 142726 0
[pid=9781] vsize: 572360
Current children cumulated CPU time (s) 69.86
Current children cumulated vsize (Kb) 572360

[startup+80.0069 s]
Raw data (loadavg): 0.98 0.98 0.99 2/55 9781
Raw data (/proc/9781/stat): 9781 (pb2sat) R 9780 9781 4070 0 -1 0 203116 0 0 0 7514 471 0 0 25 0 1 0 22051539 589611008 113651 4294967295 134512640 135987407 3221224560 3220369868 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9781/statm): 143948 113651 364 364 0 143584 0
[pid=9781] vsize: 575792
Current children cumulated CPU time (s) 79.85
Current children cumulated vsize (Kb) 575792

[startup+90.0076 s]
Raw data (loadavg): 0.98 0.98 0.99 2/55 9781
Raw data (/proc/9781/stat): 9781 (pb2sat) R 9780 9781 4070 0 -1 0 217041 0 0 0 8479 506 0 0 25 0 1 0 22051539 593666048 127346 4294967295 134512640 135987407 3221224560 3219962844 135499910 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9781/statm): 144938 127346 364 364 0 144574 0
[pid=9781] vsize: 579752
Current children cumulated CPU time (s) 89.85
Current children cumulated vsize (Kb) 579752

[startup+100.007 s]
Raw data (loadavg): 0.98 0.98 0.99 2/55 9781
Raw data (/proc/9781/stat): 9781 (pb2sat) R 9780 9781 4070 0 -1 0 228824 0 0 0 9447 537 0 0 25 0 1 0 22051539 647782400 138936 4294967295 134512640 135987407 3221224560 3220441520 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9781/statm): 158150 138936 364 364 0 157786 0
[pid=9781] vsize: 632600
Current children cumulated CPU time (s) 99.84
Current children cumulated vsize (Kb) 632600

[startup+110.009 s]
Raw data (loadavg): 0.99 0.98 0.99 2/55 9781
Raw data (/proc/9781/stat): 9781 (pb2sat) R 9780 9781 4070 0 -1 0 239093 0 0 0 10419 565 0 0 25 0 1 0 22051539 939560960 149007 4294967295 134512640 135987407 3221224560 3217136060 135500012 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9781/statm): 229385 149007 364 364 0 229021 0
[pid=9781] vsize: 917540
Current children cumulated CPU time (s) 109.84
Current children cumulated vsize (Kb) 917540



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+110.234 s]
Raw data (loadavg): 0.99 0.98 0.99 1/55 9781
Raw data (/proc/9781/stat): 9781 (pb2sat) T 9780 9781 4070 0 -1 0 241618 0 0 0 10436 569 0 0 25 0 1 0 22051539 943751168 151447 4294967295 134512640 135987407 3221224560 3217135820 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/9781/statm): 230408 151447 364 364 0 230044 0
[pid=9781] vsize: 921632
Current children cumulated CPU time (s) 110.05
Current children cumulated vsize (Kb) 921632

Sending SIGTERM to -9781
Sleeping 2 seconds
Sending SIGKILL to -9781
One traced child (pid=9781) 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): 112.55
CPU time (s): 110.39
CPU user time (s): 104.381
CPU system time (s): 6.00909
CPU usage (%): 98.0812
Max. virtual memory (cumulated for all children) (Kb): 921632

Verifier Data

ERROR: no interpretation found !