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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-scrs8.opb
MD5SUM5dc586d2135331b914090f6587c7f4ee
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 24750
Biggest coefficient in the objective function 284830543390965760000
Number of bits for the biggest coefficient in the objective function 68
Sum of the numbers in the objective function 7193462013935082274816
Number of bits of the sum of numbers in the objective function 73
Biggest number in a constraint 284830543390965760000
Number of bits of the biggest number in a constraint 68
Biggest sum of numbers in a constraint 7193462013935082274816
Number of bits of the biggest sum of numbers73
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables35070
Total number of constraints490
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 constraints490
Minimum length of a constraint30
Maximum length of a constraint1110

Trace number 9913

Launcher Data

LAUNCH ON wulflinc21 THE 2005-09-23 16:10:15 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8666 boxname=wulflinc21 idbench=462 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  5dc586d2135331b914090f6587c7f4ee  /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-scrs8.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-scrs8.opb
IDLAUNCH: 8666
/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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        927308 kB
Buffers:         13608 kB
Cached:          75540 kB
SwapCached:          0 kB
Active:          48608 kB
Inactive:        43456 kB
HighTotal:      131008 kB
HighFree:        51128 kB
LowTotal:       903652 kB
LowFree:        876180 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9672 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:11:59 (client local time) WITH STATUS 0 IN 102.46 SECONDS
stats: 8666 7 102.46 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/9098/stat): 9098 (pb2sat) R 9097 9098 4059 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21518331 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9098/statm): 373 2 364 364 0 9 0
[pid=9098] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-scrs8.opb

[startup+10.0014 s]
Raw data (loadavg): 0.91 0.93 0.92 2/55 9098
Raw data (/proc/9098/stat): 9098 (pb2sat) R 9097 9098 4059 0 -1 0 3101 0 0 0 990 8 0 0 25 0 1 0 21518331 11444224 2362 4294967295 134512640 135987407 3221224560 3221202396 134865856 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9098/statm): 2794 2362 364 364 0 2430 0
[pid=9098] vsize: 11176
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 11176

[startup+20.0021 s]
Raw data (loadavg): 0.93 0.93 0.92 2/55 9098
Raw data (/proc/9098/stat): 9098 (pb2sat) R 9097 9098 4059 0 -1 0 36600 0 0 0 1913 82 0 0 25 0 1 0 21518331 133283840 25060 4294967295 134512640 135987407 3221224560 3221209856 134861431 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9098/statm): 32540 25060 364 364 0 32176 0
[pid=9098] vsize: 130160
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 130160

[startup+30.0027 s]
Raw data (loadavg): 0.94 0.93 0.92 1/55 9098
Raw data (/proc/9098/stat): 9098 (pb2sat) T 9097 9098 4059 0 -1 0 59227 0 0 0 2861 133 0 0 25 0 1 0 21518331 172789760 36689 4294967295 134512640 135987407 3221224560 3221204796 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/9098/statm): 42185 36689 364 364 0 41821 0
[pid=9098] vsize: 168740
Current children cumulated CPU time (s) 29.94
Current children cumulated vsize (Kb) 168740

[startup+40.0024 s]
Raw data (loadavg): 0.95 0.93 0.92 2/55 9098
Raw data (/proc/9098/stat): 9098 (pb2sat) R 9097 9098 4059 0 -1 0 98048 0 0 0 3781 212 0 0 25 0 1 0 21518331 288444416 53299 4294967295 134512640 135987407 3221224560 3221193656 135487932 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9098/statm): 70421 53299 364 364 0 70057 0
[pid=9098] vsize: 281684
Current children cumulated CPU time (s) 39.93
Current children cumulated vsize (Kb) 281684

[startup+50.0041 s]
Raw data (loadavg): 0.95 0.94 0.92 2/55 9098
Raw data (/proc/9098/stat): 9098 (pb2sat) R 9097 9098 4059 0 -1 0 111783 0 0 0 4752 241 0 0 25 0 1 0 21518331 326598656 66796 4294967295 134512640 135987407 3221224560 3221221472 134562584 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9098/statm): 79736 66796 364 364 0 79372 0
[pid=9098] vsize: 318944
Current children cumulated CPU time (s) 49.93
Current children cumulated vsize (Kb) 318944

[startup+60.0038 s]
Raw data (loadavg): 0.96 0.94 0.92 2/55 9098
Raw data (/proc/9098/stat): 9098 (pb2sat) R 9097 9098 4059 0 -1 0 152778 0 0 0 5670 318 0 0 25 0 1 0 21518331 454414336 88166 4294967295 134512640 135987407 3221224560 3221198864 134887815 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9098/statm): 110941 88166 364 364 0 110577 0
[pid=9098] vsize: 443764
Current children cumulated CPU time (s) 59.88
Current children cumulated vsize (Kb) 443764

[startup+70.0045 s]
Raw data (loadavg): 0.97 0.94 0.92 2/55 9098
Raw data (/proc/9098/stat): 9098 (pb2sat) R 9097 9098 4059 0 -1 0 189728 0 0 0 6595 393 0 0 25 0 1 0 21518331 558727168 100321 4294967295 134512640 135987407 3221224560 3221194812 134637788 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9098/statm): 136408 100321 364 364 0 136044 0
[pid=9098] vsize: 545632
Current children cumulated CPU time (s) 69.88
Current children cumulated vsize (Kb) 545632

[startup+80.0052 s]
Raw data (loadavg): 0.97 0.94 0.92 2/55 9098
Raw data (/proc/9098/stat): 9098 (pb2sat) R 9097 9098 4059 0 -1 0 202286 0 0 0 7565 423 0 0 25 0 1 0 21518331 596066304 112658 4294967295 134512640 135987407 3221224560 3221209492 134878901 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9098/statm): 145524 112658 364 364 0 145160 0
[pid=9098] vsize: 582096
Current children cumulated CPU time (s) 79.88
Current children cumulated vsize (Kb) 582096

[startup+90.0049 s]
Raw data (loadavg): 0.97 0.94 0.92 2/55 9098
Raw data (/proc/9098/stat): 9098 (pb2sat) R 9097 9098 4059 0 -1 0 216998 0 0 0 8530 457 0 0 25 0 1 0 21518331 600936448 127113 4294967295 134512640 135987407 3221224560 3221212128 134864189 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9098/statm): 146713 127113 364 364 0 146349 0
[pid=9098] vsize: 586852
Current children cumulated CPU time (s) 89.87
Current children cumulated vsize (Kb) 586852

[startup+100.006 s]
Raw data (loadavg): 0.98 0.94 0.92 2/55 9098
Raw data (/proc/9098/stat): 9098 (pb2sat) R 9097 9098 4059 0 -1 0 231887 0 0 0 9497 490 0 0 25 0 1 0 21518331 657899520 141751 4294967295 134512640 135987407 3221224560 3221214784 134877628 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9098/statm): 160620 141751 364 364 0 160256 0
[pid=9098] vsize: 642480
Current children cumulated CPU time (s) 99.87
Current children cumulated vsize (Kb) 642480



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+102.267 s]
Raw data (loadavg): 0.98 0.94 0.92 1/55 9098
Raw data (/proc/9098/stat): 9098 (pb2sat) T 9097 9098 4059 0 -1 0 232301 0 0 0 9722 491 0 0 25 0 1 0 21518331 943792128 142159 4294967295 134512640 135987407 3221224560 3221212588 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/9098/statm): 230418 142159 364 364 0 230054 0
[pid=9098] vsize: 921672
Current children cumulated CPU time (s) 102.13
Current children cumulated vsize (Kb) 921672

Sending SIGTERM to -9098
Sleeping 2 seconds
Sending SIGKILL to -9098
One traced child (pid=9098) 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): 104.561
CPU time (s): 102.46
CPU user time (s): 97.2602
CPU system time (s): 5.20021
CPU usage (%): 97.9911
Max. virtual memory (cumulated for all children) (Kb): 921672

Verifier Data

ERROR: no interpretation found !