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/submitted/aloul/FPGA_SAT05/normalized-chnl10_11_pb.cnf.cr.opb
MD5SUM49b1c3edd36dd2ed7e6daee563a7bd24
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 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 12
Number of bits of the biggest sum of numbers4
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.008998
Number of variables220
Total number of constraints42
Number of constraints which are clauses22
Number of constraints which are cardinality constraints (but not clauses)20
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint10
Maximum length of a constraint11

Trace number 34643 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc21 THE 2005-05-28 10:10:01 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=23928 boxname=wulflinc21 idbench=2 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  49b1c3edd36dd2ed7e6daee563a7bd24  /oldhome/oroussel/tmp/wulflinc21/normalized-chnl10_11_pb.cnf.cr.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc21/normalized-chnl10_11_pb.cnf.cr.opb
IDLAUNCH: 23928
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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		: 451.161
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:        870700 kB
Buffers:         32200 kB
Cached:         108760 kB
SwapCached:        956 kB
Active:          47392 kB
Inactive:        95740 kB
HighTotal:      131008 kB
HighFree:        19432 kB
LowTotal:       903652 kB
LowFree:        851268 kB
SwapTotal:     2097892 kB
SwapFree:      2096012 kB
Dirty:              16 kB
Writeback:           0 kB
Mapped:           5136 kB
Slab:            15000 kB
Committed_AS:    63880 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 10:10:43 (client local time) WITH STATUS 20 IN 41.4637 SECONDS
stats: 23928 7 41.4637 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...

Decision: 200/620	Time: 7.18791/86400
Decision: 200/620	Time: 7.69683/86400
Decision: 200/620	Time: 8.27374/86400
Decision: 200/620	Time: 8.98464/86400
Decision: 200/620	Time: 9.79751/86400
Decision: 200/620	Time: 10.8723/86400
Decision: 200/620	Time: 11.9092/86400
Decision: 200/620	Time: 12.905/86400
Decision: 200/620	Time: 14.2448/86400
Decision: 200/620	Time: 15.5216/86400
Decision: 200/620	Time: 17.0654/86400
Decision: 200/620	Time: 18.6832/86400
Decision: 200/620	Time: 20.4129/86400
Decision: 200/620	Time: 22.2396/86400
Decision: 200/620	Time: 24.0223/86400
Decision: 200/620	Time: 25.9771/86400
Decision: 200/620	Time: 28.1637/86400s UNSATISFIABLE
#### 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
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.00 0.00 0.00 2/55 11875
Raw data (stat): 11875 (runsolver) R 11874 32363 32362 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 741238778 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.001 s]
Raw data (loadavg): 0.15 0.03 0.01 2/55 11875
Raw data (stat): 11875 (pb2sat) R 11874 32363 32362 0 -1 0 965 0 10 0 949 4 0 0 25 0 1 0 741238778 4902912 915 4294967295 134512640 135726644 3221224576 3221223072 134743999 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 1197 915 300 300 0 897 0
vsize: 4788
[startup+20.0016 s]
Raw data (loadavg): 0.28 0.06 0.02 2/55 11875
Raw data (stat): 11875 (pb2sat) R 11874 32363 32362 0 -1 0 1415 0 10 0 1947 7 0 0 25 0 1 0 741238778 8015872 1268 4294967295 134512640 135726644 3221224576 3221223072 134744163 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 1957 1268 300 300 0 1657 0
vsize: 7828
[startup+30.0092 s]
Raw data (loadavg): 0.39 0.09 0.03 2/55 11875
Raw data (stat): 11875 (pb2sat) R 11874 32363 32362 0 -1 0 1673 0 10 0 2946 8 0 0 25 0 1 0 741238778 8343552 1526 4294967295 134512640 135726644 3221224576 3221223072 134743980 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 2037 1526 300 300 0 1737 0
vsize: 8148
[startup+40.0099 s]
Raw data (loadavg): 0.49 0.12 0.04 2/55 11875
Raw data (stat): 11875 (pb2sat) R 11874 32363 32362 0 -1 0 1947 0 10 0 3944 10 0 0 25 0 1 0 741238778 8835072 1800 4294967295 134512640 135726644 3221224576 3221223072 134744163 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 2157 1800 300 300 0 1857 0
vsize: 8628
[startup+41.9573 s]
Raw data (loadavg): 0.53 0.14 0.04 1/54 11875
Raw data (stat): 11875 (pb2sat) R 11874 32363 32362 0 -1 0 1947 0 10 0 3944 10 0 0 25 0 1 0 741238778 8835072 1800 4294967295 134512640 135726644 3221224576 3221223072 134744163 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 2157 1800 300 300 0 1857 0
vsize: 0

Child status: 20
Real time (s): 41.957
CPU time (s): 41.4637
CPU user time (s): 41.3507
CPU system time (s): 0.112982
CPU usage (%): 98.8242
Max. virtual memory (Kb): 8628
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####