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-v2-13-7/plato.asu.edu/pub/unibo/normalized-mps-v2-13-7-blp-ar98.opb
MD5SUM53176d06e1e99afe2d28ec1484235311
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 21
Biggest coefficient in the objective function 1048576
Number of bits for the biggest coefficient in the objective function 21
Sum of the numbers in the objective function 2097151
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 81920000000
Number of bits of the biggest number in a constraint 37
Biggest sum of numbers in a constraint 40410384871329
Number of bits of the biggest sum of numbers46
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables18824
Total number of constraints17064
Number of constraints which are clauses1
Number of constraints which are cardinality constraints (but not clauses)16718
Number of constraints which are nor clauses,nor cardinality constraints345
Minimum length of a constraint1
Maximum length of a constraint15827

Trace number 10591

Launcher Data

LAUNCH ON wulflinc30 THE 2005-09-23 19:12:11 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9340 boxname=wulflinc30 idbench=1136 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  53176d06e1e99afe2d28ec1484235311  /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-13-7-blp-ar98.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-13-7-blp-ar98.opb
IDLAUNCH: 9340
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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:        919764 kB
Buffers:         12984 kB
Cached:          84392 kB
SwapCached:          0 kB
Active:          56240 kB
Inactive:        44064 kB
HighTotal:      131008 kB
HighFree:        42616 kB
LowTotal:       903652 kB
LowFree:        877148 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9028 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 19:14:03 (client local time) WITH STATUS 0 IN 109.34 SECONDS
stats: 9340 7 109.34 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/11307/stat): 11307 (pb2sat) R 11306 11307 4004 0 -1 0 18 0 0 0 0 0 0 0 19 0 1 0 22573071 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/11307/statm): 373 2 364 364 0 9 0
[pid=11307] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-13-7-blp-ar98.opb

[startup+10.0018 s]
Raw data (loadavg): 0.90 0.98 0.92 2/55 11307
Raw data (/proc/11307/stat): 11307 (pb2sat) R 11306 11307 4004 0 -1 0 13171 0 0 0 960 36 0 0 25 0 1 0 22573071 44441600 7655 4294967295 134512640 135987407 3221224560 3221026256 134877628 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11307/statm): 10850 7655 364 364 0 10486 0
[pid=11307] vsize: 43400
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 43400

[startup+20.0026 s]
Raw data (loadavg): 0.91 0.98 0.92 2/55 11307
Raw data (/proc/11307/stat): 11307 (pb2sat) R 11306 11307 4004 0 -1 0 45775 0 0 0 1882 113 0 0 25 0 1 0 22573071 141598720 23552 4294967295 134512640 135987407 3221224560 3220657792 134533899 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11307/statm): 34570 23552 364 364 0 34206 0
[pid=11307] vsize: 138280
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 138280

[startup+30.0025 s]
Raw data (loadavg): 0.93 0.98 0.92 2/55 11307
Raw data (/proc/11307/stat): 11307 (pb2sat) R 11306 11307 4004 0 -1 0 59474 0 0 0 2845 148 0 0 25 0 1 0 22573071 163708928 37030 4294967295 134512640 135987407 3221224560 3220703508 135478476 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11307/statm): 39968 37030 364 364 0 39604 0
[pid=11307] vsize: 159872
Current children cumulated CPU time (s) 29.93
Current children cumulated vsize (Kb) 159872

[startup+40.0042 s]
Raw data (loadavg): 0.94 0.98 0.92 2/55 11307
Raw data (/proc/11307/stat): 11307 (pb2sat) R 11306 11307 4004 0 -1 0 97975 0 0 0 3756 235 0 0 25 0 1 0 22573071 313188352 53339 4294967295 134512640 135987407 3221224560 3221193132 134669188 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11307/statm): 76462 53339 364 364 0 76098 0
[pid=11307] vsize: 305848
Current children cumulated CPU time (s) 39.91
Current children cumulated vsize (Kb) 305848

[startup+50.0051 s]
Raw data (loadavg): 0.95 0.98 0.92 2/55 11307
Raw data (/proc/11307/stat): 11307 (pb2sat) R 11306 11307 4004 0 -1 0 112395 0 0 0 4720 271 0 0 25 0 1 0 22573071 317378560 67519 4294967295 134512640 135987407 3221224560 3220918528 134878087 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11307/statm): 77485 67519 364 364 0 77121 0
[pid=11307] vsize: 309940
Current children cumulated CPU time (s) 49.91
Current children cumulated vsize (Kb) 309940

[startup+60.0048 s]
Raw data (loadavg): 0.95 0.98 0.92 2/55 11307
Raw data (/proc/11307/stat): 11307 (pb2sat) R 11306 11307 4004 0 -1 0 156261 0 0 0 5622 364 0 0 25 0 1 0 22573071 647327744 91775 4294967295 134512640 135987407 3221224560 3220969744 134887485 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11307/statm): 158039 91775 364 364 0 157675 0
[pid=11307] vsize: 632156
Current children cumulated CPU time (s) 59.86
Current children cumulated vsize (Kb) 632156

[startup+70.0056 s]
Raw data (loadavg): 0.96 0.98 0.92 2/55 11307
Raw data (/proc/11307/stat): 11307 (pb2sat) R 11306 11307 4004 0 -1 0 188562 0 0 0 6547 437 0 0 25 0 1 0 22573071 583864320 99325 4294967295 134512640 135987407 3221224560 3221221808 134979110 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11307/statm): 142545 99325 364 364 0 142181 0
[pid=11307] vsize: 570180
Current children cumulated CPU time (s) 69.84
Current children cumulated vsize (Kb) 570180

[startup+80.0065 s]
Raw data (loadavg): 0.97 0.98 0.92 2/55 11307
Raw data (/proc/11307/stat): 11307 (pb2sat) R 11306 11307 4004 0 -1 0 203109 0 0 0 7510 473 0 0 25 0 1 0 22573071 587513856 113629 4294967295 134512640 135987407 3221224560 3221100112 134887798 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11307/statm): 143436 113629 364 364 0 143072 0
[pid=11307] vsize: 573744
Current children cumulated CPU time (s) 79.83
Current children cumulated vsize (Kb) 573744

[startup+90.0083 s]
Raw data (loadavg): 0.97 0.98 0.92 2/55 11307
Raw data (/proc/11307/stat): 11307 (pb2sat) R 11306 11307 4004 0 -1 0 217680 0 0 0 8475 508 0 0 25 0 1 0 22573071 591839232 127958 4294967295 134512640 135987407 3221224560 3221119572 134639876 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11307/statm): 144492 127958 364 364 0 144128 0
[pid=11307] vsize: 577968
Current children cumulated CPU time (s) 89.83
Current children cumulated vsize (Kb) 577968

[startup+100.009 s]
Raw data (loadavg): 0.97 0.98 0.92 2/55 11307
Raw data (/proc/11307/stat): 11307 (pb2sat) R 11306 11307 4004 0 -1 0 228181 0 0 0 9451 532 0 0 25 0 1 0 22573071 645279744 138285 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11307/statm): 157539 138285 364 364 0 157175 0
[pid=11307] vsize: 630156
Current children cumulated CPU time (s) 99.83
Current children cumulated vsize (Kb) 630156



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+109.199 s]
Raw data (loadavg): 0.98 0.98 0.92 1/55 11307
Raw data (/proc/11307/stat): 11307 (pb2sat) T 11306 11307 4004 0 -1 0 240175 0 0 0 10341 559 0 0 25 0 1 0 22573071 951099392 150099 4294967295 134512640 135987407 3221224560 3215909536 135544035 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/11307/statm): 232202 150099 364 364 0 231838 0
[pid=11307] vsize: 928808
Current children cumulated CPU time (s) 109
Current children cumulated vsize (Kb) 928808

Sending SIGTERM to -11307
Sleeping 2 seconds

[startup+110.009 s]
Raw data (loadavg): 0.90 0.96 0.91 1/56 11308
Raw data (/proc/11307/stat): 11307 (pb2sat) S 11306 11307 4004 0 -1 0 240176 0 0 0 10344 559 0 0 25 0 1 0 22573071 951099392 150100 4294967295 134512640 135987407 3221224560 3215907944 135549753 0 16384 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11307/statm): 232202 150100 364 364 0 231838 0
[pid=11307] vsize: 928808
Current children cumulated CPU time (s) 109.03
Current children cumulated vsize (Kb) 928808
Sending SIGKILL to -11307
One traced child (pid=11307) 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): 111.507
CPU time (s): 109.34
CPU user time (s): 103.441
CPU system time (s): 5.8991
CPU usage (%): 98.0566
Max. virtual memory (cumulated for all children) (Kb): 928808

Verifier Data

ERROR: no interpretation found !