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).
  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

Namenormalized-opb/web/uclid_pb_benchmarks/normalized-ooo.tag12.ucl.opb
MD5SUM04162d5197113d66489e9d95b6572385
Bench Categoryno optimization function (SAT)
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 41
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 134
Number of bits of the biggest sum of numbers8
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark20.7588
Number of variables20605
Total number of constraints59851
Number of constraints which are clauses58675
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints1176
Minimum length of a constraint1
Maximum length of a constraint11

Trace number 7860 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc28 THE 2005-04-17 16:59:03 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2796 boxname=wulflinc28 idbench=311 idsolver=6 numberseed=0
MD5SUM SOLVER: 2225cba0d9b2c30e235f6cafc823d7ac  /oldhome/oroussel/solvers/PBS4
MD5SUM BENCH:  04162d5197113d66489e9d95b6572385  /oldhome/oroussel/tmp/wulflinc28/normalized-ooo.tag12.ucl.opb
REAL COMMAND:  PBS4 /oldhome/oroussel/tmp/wulflinc28/normalized-ooo.tag12.ucl.opb
IDLAUNCH: 2796
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.077
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		: 451.077
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:        838816 kB
Buffers:         37368 kB
Cached:         120184 kB
SwapCached:          4 kB
Active:          74420 kB
Inactive:        86896 kB
HighTotal:      131008 kB
HighFree:         6328 kB
LowTotal:       903652 kB
LowFree:        832488 kB
SwapTotal:     2097640 kB
SwapFree:      2097636 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6928 kB
Slab:            29012 kB
Committed_AS:    63484 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-17 17:00:10 (client local time) WITH STATUS 20 IN 66.8498 SECONDS
stats: 2796 7 66.8498 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c PBS v4 by Bashar Al-Rawi & Fadi Aloul
c Solving /oldhome/oroussel/tmp/wulflinc28/normalized-ooo.tag12.ucl.opb ......
s UNSATISFIABLE
c Done, CPU Time=64.4302
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Raw data (loadavg): 0.93 0.97 0.91 2/54 7077
Raw data (stat): 7077 (runsolver) R 7076 10614 10613 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 512144902 1052672 99 4294967295 134512640 135381576 3221224528 3221219776 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0005 s]
Raw data (loadavg): 0.94 0.97 0.91 2/54 7077
Raw data (stat): 7077 (PBS4) R 7076 10614 10613 0 -1 0 3211 0 0 0 990 9 0 0 25 0 1 0 512144902 13262848 2827 4294967295 134512640 135450300 3221224640 3221223072 134533524 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 3238 2827 231 231 0 3007 0
vsize: 12952
[startup+20.0006 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 7077
Raw data (stat): 7077 (PBS4) R 7076 10614 10613 0 -1 0 3765 0 0 0 1987 11 0 0 25 0 1 0 512144902 17489920 3381 4294967295 134512640 135450300 3221224640 3221223376 134538443 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4270 3381 231 231 0 4039 0
vsize: 17080
[startup+30.0013 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 7077
Raw data (stat): 7077 (PBS4) R 7076 10614 10613 0 -1 0 4104 0 0 0 2986 13 0 0 25 0 1 0 512144902 18358272 3638 4294967295 134512640 135450300 3221224640 3221223072 134533524 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4482 3638 231 231 0 4251 0
vsize: 17928
[startup+40.0012 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 7077
Raw data (stat): 7077 (PBS4) R 7076 10614 10613 0 -1 0 4380 0 0 0 3985 13 0 0 25 0 1 0 512144902 18493440 3832 4294967295 134512640 135450300 3221224640 3221223072 134533524 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4515 3832 231 231 0 4284 0
vsize: 18060
[startup+50.0016 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 7077
Raw data (stat): 7077 (PBS4) R 7076 10614 10613 0 -1 0 4969 0 0 0 4983 15 0 0 25 0 1 0 512144902 20262912 3995 4294967295 134512640 135450300 3221224640 3221222992 134533112 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4947 3995 231 231 0 4716 0
vsize: 19788
[startup+60.1054 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 7077
Raw data (stat): 7077 (PBS4) R 7076 10614 10613 0 -1 0 5119 0 0 0 5993 16 0 0 25 0 1 0 512144902 24457216 4145 4294967295 134512640 135450300 3221224640 3221223376 134538537 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5971 4145 231 231 0 5740 0
vsize: 23884
[startup+66.9659 s]
Raw data (loadavg): 0.97 0.97 0.91 2/55 7118
Raw data (stat): 7077 (PBS4) R 7076 10614 10613 0 -1 0 5119 0 0 0 5993 16 0 0 25 0 1 0 512144902 24457216 4145 4294967295 134512640 135450300 3221224640 3221223376 134538537 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5971 4145 231 231 0 5740 0
vsize: 0

Child status: 20
Real time (s): 66.9617
CPU time (s): 66.8498
CPU user time (s): 66.6679
CPU system time (s): 0.181972
CPU usage (%): 99.8329
Max. virtual memory (Kb): 23884
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####