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.burch_dill.3.accl.ucl.opb
MD5SUM9fbb3a49a26e96e8ca349ca5e732b02f
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 36
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 130
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 benchmark9.8365
Number of variables4622
Total number of constraints12569
Number of constraints which are clauses11753
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints816
Minimum length of a constraint1
Maximum length of a constraint11

Trace number 34923 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc28 THE 2005-05-28 11:14:42 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24223 boxname=wulflinc28 idbench=297 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9fbb3a49a26e96e8ca349ca5e732b02f  /oldhome/oroussel/tmp/wulflinc28/normalized-ooo.burch_dill.3.accl.ucl.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc28/normalized-ooo.burch_dill.3.accl.ucl.opb
IDLAUNCH: 24223
/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:        696920 kB
Buffers:         40208 kB
Cached:         255764 kB
SwapCached:        780 kB
Active:          17500 kB
Inactive:       298660 kB
HighTotal:      131008 kB
HighFree:        12964 kB
LowTotal:       903652 kB
LowFree:        683956 kB
SwapTotal:     2097640 kB
SwapFree:      2096164 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5460 kB
Slab:            15856 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 11:16:16 (client local time) WITH STATUS 20 IN 94.0067 SECONDS
stats: 24223 7 94.0067 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...

Decision: 850/17346	Time: 7.2279/86400
Decision: 850/17346	Time: 9.77651/86400
Decision: 850/17346	Time: 12.931/86400
Decision: 1804/17346	Time: 19.496/86400
Decision: 1804/17346	Time: 23.3115/86400
Decision: 1804/17346	Time: 27.3878/86400
Decision: 1804/17346	Time: 31.1153/86400
Decision: 1804/17346	Time: 35.3206/86400
Decision: 1804/17346	Time: 39.443/86400
Decision: 1804/17346	Time: 43.0565/86400
Decision: 1804/17346	Time: 47.1868/86400
Decision: 1804/17346	Time: 50.9892/86400
Decision: 1804/17346	Time: 55.0266/86400
Decision: 1804/17346	Time: 59.36/86400
Decision: 1804/17346	Time: 63.1504/86400
Decision: 1804/17346	Time: 66.8638/86400
Decision: 2151/17346	Time: 71.2472/86400
Decision: 2152/17346	Time: 77.4332/86400
Decision: 2152/17346	Time: 80.8067/86400
Decision: 2152/17346	Time: 83.4393/86400
Decision: 2152/17346	Time: 86.8478/86400s 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): 0.76 0.92 0.89 2/54 5717
Raw data (stat): 5717 (runsolver) R 5716 24821 24820 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864367968 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+10.0004 s]
Raw data (loadavg): 0.80 0.93 0.90 2/54 5717
Raw data (stat): 5717 (pb2sat) R 5716 24821 24820 0 -1 0 2843 0 0 0 989 10 0 0 25 0 1 0 864367968 9887744 1864 4294967295 134512640 135726644 3221224576 3221223072 134744163 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 2414 1864 300 300 0 2114 0
vsize: 9656
[startup+20.0015 s]
Raw data (loadavg): 0.83 0.93 0.90 2/54 5717
Raw data (stat): 5717 (pb2sat) R 5716 24821 24820 0 -1 0 3093 0 0 0 1986 12 0 0 25 0 1 0 864367968 11427840 2046 4294967295 134512640 135726644 3221224576 3221223072 134744063 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 2790 2046 300 300 0 2490 0
vsize: 11160
[startup+30.0021 s]
Raw data (loadavg): 0.85 0.93 0.90 2/54 5717
Raw data (stat): 5717 (pb2sat) R 5716 24821 24820 0 -1 0 3330 0 0 0 2982 16 0 0 25 0 1 0 864367968 11591680 2181 4294967295 134512640 135726644 3221224576 3221223072 134744063 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 2830 2181 300 300 0 2530 0
vsize: 11320
[startup+40.0014 s]
Raw data (loadavg): 0.88 0.93 0.90 2/54 5717
Raw data (stat): 5717 (pb2sat) R 5716 24821 24820 0 -1 0 3474 0 0 0 3979 19 0 0 25 0 1 0 864367968 11919360 2257 4294967295 134512640 135726644 3221224576 3221223072 134743953 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 2910 2257 300 300 0 2610 0
vsize: 11640
[startup+50.002 s]
Raw data (loadavg): 0.89 0.93 0.90 2/54 5717
Raw data (stat): 5717 (pb2sat) R 5716 24821 24820 0 -1 0 3704 0 0 0 4978 20 0 0 25 0 1 0 864367968 14016512 2385 4294967295 134512640 135726644 3221224576 3221223184 134741242 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3422 2385 300 300 0 3122 0
vsize: 13688
[startup+60.0022 s]
Raw data (loadavg): 0.91 0.93 0.90 2/54 5717
Raw data (stat): 5717 (pb2sat) R 5716 24821 24820 0 -1 0 4219 0 0 0 5975 23 0 0 25 0 1 0 864367968 15589376 2447 4294967295 134512640 135726644 3221224576 3221223072 134743982 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3806 2447 300 300 0 3506 0
vsize: 15224
[startup+70.0024 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 5717
Raw data (stat): 5717 (pb2sat) R 5716 24821 24820 0 -1 0 4509 0 0 0 6972 26 0 0 25 0 1 0 864367968 15720448 2635 4294967295 134512640 135726644 3221224576 3221222936 134809809 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3838 2635 300 300 0 3538 0
vsize: 15352
[startup+80.0031 s]
Raw data (loadavg): 0.93 0.94 0.90 2/54 5717
Raw data (stat): 5717 (pb2sat) R 5716 24821 24820 0 -1 0 4717 0 0 0 7970 29 0 0 25 0 1 0 864367968 15855616 2775 4294967295 134512640 135726644 3221224576 3221223072 134744063 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3871 2775 300 300 0 3571 0
vsize: 15484
[startup+90.0032 s]
Raw data (loadavg): 0.94 0.94 0.90 2/54 5717
Raw data (stat): 5717 (pb2sat) R 5716 24821 24820 0 -1 0 5103 0 0 0 8967 31 0 0 25 0 1 0 864367968 20168704 3059 4294967295 134512640 135726644 3221224576 3221223220 134744672 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 4924 3059 300 300 0 4624 0
vsize: 19696
[startup+94.0134 s]
Raw data (loadavg): 0.95 0.94 0.90 1/53 5717
Raw data (stat): 5717 (pb2sat) R 5716 24821 24820 0 -1 0 5103 0 0 0 8967 31 0 0 25 0 1 0 864367968 20168704 3059 4294967295 134512640 135726644 3221224576 3221223220 134744672 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 4924 3059 300 300 0 4624 0
vsize: 0

Child status: 20
Real time (s): 94.0128
CPU time (s): 94.0067
CPU user time (s): 93.6718
CPU system time (s): 0.334949
CPU usage (%): 99.9935
Max. virtual memory (Kb): 19696
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####