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-blast-floppy1-7.ucl.opb
MD5SUM0c52c70d5adb3b80d9053fcb18f76b68
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 6518
Number of bits of the biggest number in a constraint 13
Biggest sum of numbers in a constraint 18803
Number of bits of the biggest sum of numbers15
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.371942
Number of variables2913
Total number of constraints3105
Number of constraints which are clauses2259
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints846
Minimum length of a constraint1
Maximum length of a constraint25

Trace number 39650 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-07 15:47:08 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=27718 boxname=wulflinc3 idbench=276 idsolver=20 numberseed=0
MD5SUM SOLVER: f6aa7fb267fa9710116626be7e6d3048  /oldhome/oroussel/solvers/bsolo_lpr-v2
MD5SUM BENCH:  0c52c70d5adb3b80d9053fcb18f76b68  /oldhome/oroussel/tmp/wulflinc3/normalized-blast-floppy1-7.ucl.opb
REAL COMMAND:  bsolo_lpr-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-blast-floppy1-7.ucl.opb
IDLAUNCH: 27718
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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	: 2
cpu MHz		: 451.190
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:        272528 kB
Buffers:         34596 kB
Cached:         704052 kB
SwapCached:        240 kB
Active:          64600 kB
Inactive:       676572 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        272276 kB
SwapTotal:     2097136 kB
SwapFree:      2096352 kB
Dirty:              44 kB
Writeback:           0 kB
Mapped:           6220 kB
Slab:            15324 kB
Committed_AS:    71796 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-07 15:48:04 (client local time) WITH STATUS 20 IN 56.4184 SECONDS
stats: 27718 7 56.4184 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c INFO: No cost function. Find solution and finish.
c Initial problem consists of 2913 variables and 3105 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 56.405 s
#### 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): 0.70 0.87 0.89 1/54 13066
Raw data (stat): 13066 (runsolver) R 13065 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 894178069 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+10.0007 s]
Raw data (loadavg): 0.75 0.88 0.89 2/54 13066
Raw data (stat): 13066 (bsolo_lpr-v2) R 13065 20224 20223 0 -1 0 4622 0 0 0 986 11 0 0 25 0 1 0 894178069 22159360 4540 4294967295 134512640 134716908 3221224576 3221223216 134606501 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5410 4540 1111 63 0 5347 0
vsize: 21640
[startup+20.0012 s]
Raw data (loadavg): 0.79 0.88 0.89 2/54 13066
Raw data (stat): 13066 (bsolo_lpr-v2) R 13065 20224 20223 0 -1 0 4625 0 0 0 1987 11 0 0 25 0 1 0 894178069 22159360 4543 4294967295 134512640 134716908 3221224576 3221223216 134606510 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5410 4543 1111 63 0 5347 0
vsize: 21640
[startup+30.0013 s]
Raw data (loadavg): 0.82 0.88 0.89 2/54 13066
Raw data (stat): 13066 (bsolo_lpr-v2) R 13065 20224 20223 0 -1 0 4625 0 0 0 2987 11 0 0 25 0 1 0 894178069 22159360 4543 4294967295 134512640 134716908 3221224576 3221223328 134630808 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5410 4543 1111 63 0 5347 0
vsize: 21640
[startup+40.0019 s]
Raw data (loadavg): 0.85 0.89 0.89 2/54 13066
Raw data (stat): 13066 (bsolo_lpr-v2) R 13065 20224 20223 0 -1 0 4670 0 0 0 3987 11 0 0 25 0 1 0 894178069 22159360 4564 4294967295 134512640 134716908 3221224576 3221223216 134606490 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5410 4564 1111 63 0 5347 0
vsize: 21640
[startup+50.0017 s]
Raw data (loadavg): 0.87 0.89 0.90 2/54 13066
Raw data (stat): 13066 (bsolo_lpr-v2) R 13065 20224 20223 0 -1 0 4907 0 0 0 4986 11 0 0 25 0 1 0 894178069 22159360 4564 4294967295 134512640 134716908 3221224576 3221223216 134606504 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5410 4564 1111 63 0 5347 0
vsize: 21640
[startup+56.4334 s]
Raw data (loadavg): 0.88 0.89 0.90 1/53 13066
Raw data (stat): 13066 (bsolo_lpr-v2) R 13065 20224 20223 0 -1 0 4907 0 0 0 4986 11 0 0 25 0 1 0 894178069 22159360 4564 4294967295 134512640 134716908 3221224576 3221223216 134606504 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5410 4564 1111 63 0 5347 0
vsize: 0

Child status: 20
Real time (s): 56.4331
CPU time (s): 56.4184
CPU user time (s): 56.2824
CPU system time (s): 0.135979
CPU usage (%): 99.9739
Max. virtual memory (Kb): 21640
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####