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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-seba.opb
MD5SUM4a697c297ecbc7d83b192d907b1ba64c
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 5999
Biggest coefficient in the objective function 252287385600
Number of bits for the biggest coefficient in the objective function 38
Sum of the numbers in the objective function 4556926949351
Number of bits of the sum of numbers in the objective function 43
Biggest number in a constraint 252287385600
Number of bits of the biggest number in a constraint 38
Biggest sum of numbers in a constraint 4556926949351
Number of bits of the biggest sum of numbers43
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables16645
Total number of constraints1029
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints1029
Minimum length of a constraint7
Maximum length of a constraint333

Trace number 10306

Launcher Data

LAUNCH ON wulflinc28 THE 2005-09-23 17:49:05 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9057 boxname=wulflinc28 idbench=853 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  4a697c297ecbc7d83b192d907b1ba64c  /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-13-7-seba.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-13-7-seba.opb
IDLAUNCH: 9057
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.188
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	: 3
cpu MHz		: 451.188
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:        932536 kB
Buffers:         12144 kB
Cached:          72584 kB
SwapCached:          0 kB
Active:          45732 kB
Inactive:        41956 kB
HighTotal:      131008 kB
HighFree:        54124 kB
LowTotal:       903652 kB
LowFree:        878412 kB
SwapTotal:     2097640 kB
SwapFree:      2097640 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8772 kB
Committed_AS:    63628 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:50:37 (client local time) WITH STATUS 0 IN 89.7114 SECONDS
stats: 9057 7 89.7114 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/9486/stat): 9486 (pb2sat) R 9485 9486 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22076200 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9486/statm): 373 2 364 364 0 9 0
[pid=9486] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-13-7-seba.opb

[startup+10.0019 s]
Raw data (loadavg): 0.93 0.97 0.97 2/55 9486
Raw data (/proc/9486/stat): 9486 (pb2sat) R 9485 9486 4005 0 -1 0 27614 0 0 0 931 65 0 0 25 0 1 0 22076200 81629184 16465 4294967295 134512640 135987407 3221224560 3221196320 134931311 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9486/statm): 19929 16465 364 364 0 19565 0
[pid=9486] vsize: 79716
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 79716

[startup+20.0026 s]
Raw data (loadavg): 0.94 0.97 0.97 2/55 9486
Raw data (/proc/9486/stat): 9486 (pb2sat) R 9485 9486 4005 0 -1 0 57220 0 0 0 1865 129 0 0 25 0 1 0 22076200 167723008 34836 4294967295 134512640 135987407 3221224560 3221187328 134878604 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9486/statm): 40948 34836 364 364 0 40584 0
[pid=9486] vsize: 163792
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 163792

[startup+30.0032 s]
Raw data (loadavg): 0.95 0.97 0.97 2/55 9486
Raw data (/proc/9486/stat): 9486 (pb2sat) R 9485 9486 4005 0 -1 0 96035 0 0 0 2783 209 0 0 25 0 1 0 22076200 318013440 51456 4294967295 134512640 135987407 3221224560 3221160352 134877708 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9486/statm): 77640 51456 364 364 0 77276 0
[pid=9486] vsize: 310560
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 310560

[startup+40.0039 s]
Raw data (loadavg): 0.95 0.97 0.97 2/55 9486
Raw data (/proc/9486/stat): 9486 (pb2sat) R 9485 9486 4005 0 -1 0 111870 0 0 0 3749 243 0 0 25 0 1 0 22076200 320987136 67019 4294967295 134512640 135987407 3221224560 3221195680 134856473 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9486/statm): 78366 67019 364 364 0 78002 0
[pid=9486] vsize: 313464
Current children cumulated CPU time (s) 39.92
Current children cumulated vsize (Kb) 313464

[startup+50.0046 s]
Raw data (loadavg): 0.96 0.97 0.97 2/55 9486
Raw data (/proc/9486/stat): 9486 (pb2sat) R 9485 9486 4005 0 -1 0 161059 0 0 0 4642 348 0 0 25 0 1 0 22076200 651616256 96571 4294967295 134512640 135987407 3221224560 3221150816 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9486/statm): 159086 96571 364 364 0 158722 0
[pid=9486] vsize: 636344
Current children cumulated CPU time (s) 49.9
Current children cumulated vsize (Kb) 636344

[startup+60.0043 s]
Raw data (loadavg): 0.97 0.97 0.97 2/55 9486
Raw data (/proc/9486/stat): 9486 (pb2sat) R 9485 9486 4005 0 -1 0 191917 0 0 0 5572 417 0 0 25 0 1 0 22076200 588423168 102639 4294967295 134512640 135987407 3221224560 3221221304 134563074 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9486/statm): 143658 102639 364 364 0 143294 0
[pid=9486] vsize: 574632
Current children cumulated CPU time (s) 59.89
Current children cumulated vsize (Kb) 574632

[startup+70.005 s]
Raw data (loadavg): 0.97 0.97 0.97 2/55 9486
Raw data (/proc/9486/stat): 9486 (pb2sat) R 9485 9486 4005 0 -1 0 208558 0 0 0 6531 458 0 0 25 0 1 0 22076200 593424384 119004 4294967295 134512640 135987407 3221224560 3221221508 135479922 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9486/statm): 144879 119004 364 364 0 144515 0
[pid=9486] vsize: 579516
Current children cumulated CPU time (s) 69.89
Current children cumulated vsize (Kb) 579516

[startup+80.0057 s]
Raw data (loadavg): 0.97 0.97 0.97 2/55 9486
Raw data (/proc/9486/stat): 9486 (pb2sat) R 9485 9486 4005 0 -1 0 224772 0 0 0 7491 498 0 0 25 0 1 0 22076200 647675904 134942 4294967295 134512640 135987407 3221224560 3221167744 134877628 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9486/statm): 158124 134942 364 364 0 157760 0
[pid=9486] vsize: 632496
Current children cumulated CPU time (s) 79.89
Current children cumulated vsize (Kb) 632496



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+89.5165 s]
Raw data (loadavg): 0.98 0.97 0.97 1/55 9486
Raw data (/proc/9486/stat): 9486 (pb2sat) T 9485 9486 4005 0 -1 0 241666 0 0 0 8399 539 0 0 25 0 1 0 22076200 943845376 151492 4294967295 134512640 135987407 3221224560 3221128172 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/9486/statm): 230431 151492 364 364 0 230067 0
[pid=9486] vsize: 921724
Current children cumulated CPU time (s) 89.38
Current children cumulated vsize (Kb) 921724

Sending SIGTERM to -9486
Sleeping 2 seconds

[startup+90.0053 s]
Raw data (loadavg): 0.98 0.97 0.97 1/56 9487
Raw data (/proc/9486/stat): 9486 (pb2sat) S 9485 9486 4005 0 -1 0 241667 0 0 0 8400 539 0 0 25 0 1 0 22076200 943845376 151493 4294967295 134512640 135987407 3221224560 3221126872 135549753 0 16384 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9486/statm): 230431 151493 364 364 0 230067 0
[pid=9486] vsize: 921724
Current children cumulated CPU time (s) 89.39
Current children cumulated vsize (Kb) 921724
Sending SIGKILL to -9486
One traced child (pid=9486) 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): 91.8306
CPU time (s): 89.7114
CPU user time (s): 84.0052
CPU system time (s): 5.70613
CPU usage (%): 97.6922
Max. virtual memory (cumulated for all children) (Kb): 921724

Verifier Data

ERROR: no interpretation found !