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-A2C1S1.opb
MD5SUM84023cc1c9d18b4d21ad2d86c1617614
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 10238

Launcher Data

LAUNCH ON wulflinc18 THE 2005-09-23 17:41:07 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8984 boxname=wulflinc18 idbench=780 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  84023cc1c9d18b4d21ad2d86c1617614  /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-A2C1S1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-A2C1S1.opb
IDLAUNCH: 8984
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.061
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		: 451.061
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:        919044 kB
Buffers:         15256 kB
Cached:          80284 kB
SwapCached:          0 kB
Active:          52228 kB
Inactive:        46244 kB
HighTotal:      131008 kB
HighFree:        46368 kB
LowTotal:       903652 kB
LowFree:        872676 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11528 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:43:11 (client local time) WITH STATUS 0 IN 122.298 SECONDS
stats: 8984 7 122.298 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/8411/stat): 8411 (pb2sat) R 8410 8411 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22066068 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8411/statm): 373 2 364 364 0 9 0
[pid=8411] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-A2C1S1.opb

[startup+10.0023 s]
Raw data (loadavg): 0.93 0.97 0.95 2/55 8411
Raw data (/proc/8411/stat): 8411 (pb2sat) R 8410 8411 4060 0 -1 0 2587 0 0 0 991 6 0 0 25 0 1 0 22066068 9641984 1900 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8411/statm): 2354 1900 364 364 0 1990 0
[pid=8411] vsize: 9416
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 9416

[startup+20.0032 s]
Raw data (loadavg): 0.94 0.97 0.95 2/55 8411
Raw data (/proc/8411/stat): 8411 (pb2sat) R 8410 8411 4060 0 -1 0 4194 0 0 0 1987 10 0 0 25 0 1 0 22066068 15228928 2760 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8411/statm): 3718 2760 364 364 0 3354 0
[pid=8411] vsize: 14872
Current children cumulated CPU time (s) 19.97
Current children cumulated vsize (Kb) 14872

[startup+30.0041 s]
Raw data (loadavg): 0.95 0.97 0.95 2/55 8411
Raw data (/proc/8411/stat): 8411 (pb2sat) R 8410 8411 4060 0 -1 0 12967 0 0 0 2964 32 0 0 25 0 1 0 22066068 41820160 8760 4294967295 134512640 135987407 3221224560 3221003192 135487877 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8411/statm): 10210 8760 364 364 0 9846 0
[pid=8411] vsize: 40840
Current children cumulated CPU time (s) 29.96
Current children cumulated vsize (Kb) 40840

[startup+40.0051 s]
Raw data (loadavg): 0.95 0.97 0.95 2/55 8411
Raw data (/proc/8411/stat): 8411 (pb2sat) R 8410 8411 4060 0 -1 0 52763 0 0 0 3875 118 0 0 25 0 1 0 22066068 167981056 30294 4294967295 134512640 135987407 3221224560 3221074768 134635425 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8411/statm): 41011 30294 364 364 0 40647 0
[pid=8411] vsize: 164044
Current children cumulated CPU time (s) 39.93
Current children cumulated vsize (Kb) 164044

[startup+50.006 s]
Raw data (loadavg): 0.96 0.97 0.95 2/55 8411
Raw data (/proc/8411/stat): 8411 (pb2sat) R 8410 8411 4060 0 -1 0 78894 0 0 0 4820 171 0 0 25 0 1 0 22066068 284315648 55805 4294967295 134512640 135987407 3221224560 3221062396 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8411/statm): 69413 55805 364 364 0 69049 0
[pid=8411] vsize: 277652
Current children cumulated CPU time (s) 49.91
Current children cumulated vsize (Kb) 277652

[startup+60.0069 s]
Raw data (loadavg): 0.97 0.97 0.95 2/55 8411
Raw data (/proc/8411/stat): 8411 (pb2sat) R 8410 8411 4060 0 -1 0 107328 0 0 0 5753 236 0 0 25 0 1 0 22066068 345321472 62431 4294967295 134512640 135987407 3221224560 3221221172 135479922 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8411/statm): 84307 62431 364 364 0 83943 0
[pid=8411] vsize: 337228
Current children cumulated CPU time (s) 59.89
Current children cumulated vsize (Kb) 337228

[startup+70.0069 s]
Raw data (loadavg): 0.97 0.97 0.95 2/55 8411
Raw data (/proc/8411/stat): 8411 (pb2sat) R 8410 8411 4060 0 -1 0 122053 0 0 0 6723 266 0 0 25 0 1 0 22066068 348024832 76906 4294967295 134512640 135987407 3221224560 3221065488 134558578 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8411/statm): 84967 76906 364 364 0 84603 0
[pid=8411] vsize: 339868
Current children cumulated CPU time (s) 69.89
Current children cumulated vsize (Kb) 339868

[startup+80.0078 s]
Raw data (loadavg): 0.97 0.97 0.95 2/55 8411
Raw data (/proc/8411/stat): 8411 (pb2sat) R 8410 8411 4060 0 -1 0 185765 0 0 0 7598 386 0 0 25 0 1 0 22066068 678649856 121038 4294967295 134512640 135987407 3221224560 3221010400 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8411/statm): 165686 121042 364 364 0 165322 0
[pid=8411] vsize: 662744
Current children cumulated CPU time (s) 79.84
Current children cumulated vsize (Kb) 662744

[startup+90.0077 s]
Raw data (loadavg): 0.98 0.97 0.95 2/55 8411
Raw data (/proc/8411/stat): 8411 (pb2sat) R 8410 8411 4060 0 -1 0 199303 0 0 0 8564 420 0 0 25 0 1 0 22066068 614510592 109777 4294967295 134512640 135987407 3221224560 3221069836 134637005 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8411/statm): 150027 109777 364 364 0 149663 0
[pid=8411] vsize: 600108
Current children cumulated CPU time (s) 89.84
Current children cumulated vsize (Kb) 600108

[startup+100.009 s]
Raw data (loadavg): 0.98 0.97 0.95 2/55 8411
Raw data (/proc/8411/stat): 8411 (pb2sat) R 8410 8411 4060 0 -1 0 213591 0 0 0 9534 450 0 0 25 0 1 0 22066068 617213952 123822 4294967295 134512640 135987407 3221224560 3221067732 135478476 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8411/statm): 150687 123822 364 364 0 150323 0
[pid=8411] vsize: 602748
Current children cumulated CPU time (s) 99.84
Current children cumulated vsize (Kb) 602748

[startup+110.01 s]
Raw data (loadavg): 0.98 0.97 0.95 2/55 8411
Raw data (/proc/8411/stat): 8411 (pb2sat) R 8410 8411 4060 0 -1 0 228649 0 0 0 10503 481 0 0 25 0 1 0 22066068 622891008 138637 4294967295 134512640 135987407 3221224560 3221008132 134887260 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8411/statm): 152073 138637 364 364 0 151709 0
[pid=8411] vsize: 608292
Current children cumulated CPU time (s) 109.84
Current children cumulated vsize (Kb) 608292

[startup+120.009 s]
Raw data (loadavg): 0.99 0.97 0.95 2/55 8411
Raw data (/proc/8411/stat): 8411 (pb2sat) R 8410 8411 4060 0 -1 0 241064 0 0 0 11479 505 0 0 25 0 1 0 22066068 676737024 150847 4294967295 134512640 135987407 3221224560 3221079248 134636919 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8411/statm): 165219 150847 364 364 0 164855 0
[pid=8411] vsize: 660876
Current children cumulated CPU time (s) 119.84
Current children cumulated vsize (Kb) 660876



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+122.093 s]
Raw data (loadavg): 0.99 0.97 0.95 1/55 8411
Raw data (/proc/8411/stat): 8411 (pb2sat) T 8410 8411 4060 0 -1 0 244929 0 0 0 11678 513 0 0 25 0 1 0 22066068 965468160 154659 4294967295 134512640 135987407 3221224560 3221096064 135544035 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/8411/statm): 235710 154659 364 364 0 235346 0
[pid=8411] vsize: 942840
Current children cumulated CPU time (s) 121.91
Current children cumulated vsize (Kb) 942840

Sending SIGTERM to -8411
Sleeping 2 seconds
Sending SIGKILL to -8411
One traced child (pid=8411) 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): 124.419
CPU time (s): 122.298
CPU user time (s): 116.841
CPU system time (s): 5.45717
CPU usage (%): 98.2959
Max. virtual memory (cumulated for all children) (Kb): 942840

Verifier Data

ERROR: no interpretation found !