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

Nameweb/uclid_pb_benchmarks/normalized-ooo.rf9.ucl.opb
MD5SUM16020fb7e9a574406a9b7b25cd98594c
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 33
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 126
Number of bits of the biggest sum of numbers7
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark9.12861
Number of variables11476
Total number of constraints33090
Number of constraints which are clauses32382
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints708
Minimum length of a constraint1
Maximum length of a constraint11

Trace number 2444

Launcher Data

LAUNCH ON wulflinc29 THE 2005-09-18 19:55:59 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=3847 boxname=wulflinc29 idbench=331 idsolver=4 numberseed=0
MD5SUM SOLVER: 21c3ffd7205c96d5f0784fd273b92938  /oldhome/oroussel/solvers/PBS4
MD5SUM BENCH:  16020fb7e9a574406a9b7b25cd98594c  /oldhome/oroussel/tmp/wulflinc29/normalized-ooo.rf9.ucl.opb
REAL COMMAND:  PBS4 /oldhome/oroussel/tmp/wulflinc29/normalized-ooo.rf9.ucl.opb
IDLAUNCH: 3847
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.020
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		: 451.020
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:        909788 kB
Buffers:         33552 kB
Cached:          61468 kB
SwapCached:        792 kB
Active:          29540 kB
Inactive:        68240 kB
HighTotal:      131008 kB
HighFree:        68432 kB
LowTotal:       903652 kB
LowFree:        841356 kB
SwapTotal:     2097892 kB
SwapFree:      2096664 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5740 kB
Slab:            21392 kB
Committed_AS:    64168 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-18 19:56:20 (client local time) WITH STATUS 20 IN 20.05 SECONDS
stats: 3847 7 20.05 20

Solver Data

c PBS v4 by Bashar Al-Rawi & Fadi Aloul
c Solving /oldhome/oroussel/tmp/wulflinc29/normalized-ooo.rf9.ucl.opb ......
s UNSATISFIABLE
c Done, CPU Time=18.6852

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/24435/stat): 24435 (PBS4) R 24434 24435 19818 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 1843931323 978944 2 4294967295 134512640 135450776 3221224576 3221224576 134512960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/24435/statm): 239 2 232 232 0 7 0
[pid=24435] vsize: 956
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc29/normalized-ooo.rf9.ucl.opb
open syscall for file /oldhome/oroussel/tmp/wulflinc29/normalized-ooo.rf9.ucl.opb

[startup+10.0031 s]
Raw data (loadavg): 0.93 0.98 0.99 2/56 24435
Raw data (/proc/24435/stat): 24435 (PBS4) R 24434 24435 19818 0 -1 0 2073 0 0 0 971 12 0 0 25 0 1 0 1843931323 8568832 1717 4294967295 134512640 135450776 3221224576 3221223024 134535760 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/24435/statm): 2092 1717 232 232 0 1860 0
[pid=24435] vsize: 8368
Current children cumulated CPU time (s) 9.83
Current children cumulated vsize (Kb) 8368

[startup+20.0039 s]
Raw data (loadavg): 0.94 0.98 0.99 2/56 24435
Raw data (/proc/24435/stat): 24435 (PBS4) R 24434 24435 19818 0 -1 0 2315 0 0 0 1945 21 0 0 25 0 1 0 1843931323 11153408 1959 4294967295 134512640 135450776 3221224576 3221223296 134539347 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/24435/statm): 2723 1959 232 232 0 2491 0
[pid=24435] vsize: 10892
Current children cumulated CPU time (s) 19.66
Current children cumulated vsize (Kb) 10892
One traced child (pid=24435) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 20.3946
CPU time (s): 20.05
CPU user time (s): 19.827
CPU system time (s): 0.222966
CPU usage (%): 98.3102
Max. virtual memory (cumulated for all children) (Kb): 10892

Verifier Data

ERROR: no interpretation found !