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 34924 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc13 THE 2005-05-28 11:15:25 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24237 boxname=wulflinc13 idbench=311 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  04162d5197113d66489e9d95b6572385  /oldhome/oroussel/tmp/wulflinc13/normalized-ooo.tag12.ucl.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc13/normalized-ooo.tag12.ucl.opb
IDLAUNCH: 24237
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.242
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	: 2
cpu MHz		: 451.242
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        761076 kB
Buffers:         35856 kB
Cached:         216624 kB
SwapCached:        548 kB
Active:          21332 kB
Inactive:       233104 kB
HighTotal:      131008 kB
HighFree:        64680 kB
LowTotal:       903652 kB
LowFree:        696396 kB
SwapTotal:     2097136 kB
SwapFree:      2095648 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5140 kB
Slab:            13308 kB
Committed_AS:    63568 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 11:16:49 (client local time) WITH STATUS 20 IN 84.4042 SECONDS
stats: 24237 7 84.4042 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...

Decision: 1189/39235	Time: 41.5717/86400
Decision: 1191/39235	Time: 46.9729/86400
Decision: 1191/39235	Time: 50.4563/86400
Decision: 1391/39235	Time: 56.3264/86400
Decision: 1392/39235	Time: 61.0797/86400
Decision: 1392/39235	Time: 66.6239/86400s 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): 0.85 0.95 0.90 2/54 5752
Raw data (stat): 5752 (runsolver) R 5751 1269 1268 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806151090 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0007 s]
Raw data (loadavg): 0.87 0.95 0.90 2/54 5752
Raw data (stat): 5752 (pb2sat) R 5751 1269 1268 0 -1 0 5646 0 0 0 983 16 0 0 25 0 1 0 806151090 18776064 3641 4294967295 134512640 135726644 3221224592 3221223088 134744063 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 4584 3641 300 300 0 4284 0
vsize: 18336
[startup+20.0012 s]
Raw data (loadavg): 0.89 0.96 0.91 2/54 5752
Raw data (stat): 5752 (pb2sat) R 5751 1269 1268 0 -1 0 5955 0 0 0 1981 17 0 0 25 0 1 0 806151090 19861504 3950 4294967295 134512640 135726644 3221224592 3221222920 134810743 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 4849 3950 300 300 0 4549 0
vsize: 19396
[startup+30.0013 s]
Raw data (loadavg): 0.91 0.96 0.91 2/54 5752
Raw data (stat): 5752 (pb2sat) R 5751 1269 1268 0 -1 0 6200 0 0 0 2979 20 0 0 25 0 1 0 806151090 22528000 4195 4294967295 134512640 135726644 3221224592 3221223248 134731175 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 5500 4195 300 300 0 5200 0
vsize: 22000
[startup+40.0015 s]
Raw data (loadavg): 0.92 0.96 0.91 2/54 5752
Raw data (stat): 5752 (pb2sat) R 5751 1269 1268 0 -1 0 6678 0 0 0 3977 22 0 0 25 0 1 0 806151090 24592384 4673 4294967295 134512640 135726644 3221224592 3221223088 134743955 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 6004 4673 300 300 0 5704 0
vsize: 24016
[startup+50.0015 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 5752
Raw data (stat): 5752 (pb2sat) R 5751 1269 1268 0 -1 0 7031 0 0 0 4975 23 0 0 25 0 1 0 806151090 25378816 4949 4294967295 134512640 135726644 3221224592 3221223216 134744594 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 6196 4949 300 300 0 5896 0
vsize: 24784
[startup+60.0021 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 5752
Raw data (stat): 5752 (pb2sat) R 5751 1269 1268 0 -1 0 7335 0 0 0 5975 24 0 0 25 0 1 0 806151090 25649152 5099 4294967295 134512640 135726644 3221224592 3221223088 134743980 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 6262 5099 300 300 0 5962 0
vsize: 25048
[startup+70.0026 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 5752
Raw data (stat): 5752 (pb2sat) R 5751 1269 1268 0 -1 0 7639 0 0 0 6973 25 0 0 25 0 1 0 806151090 25784320 5249 4294967295 134512640 135726644 3221224592 3221222928 134735629 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 6295 5249 300 300 0 5995 0
vsize: 25180
[startup+80.0021 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 5752
Raw data (stat): 5752 (pb2sat) R 5751 1269 1268 0 -1 0 8513 0 0 0 7970 28 0 0 25 0 1 0 806151090 28930048 5277 4294967295 134512640 135726644 3221224592 3221223088 134744163 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 7063 5277 300 300 0 6763 0
vsize: 28252
[startup+84.4198 s]
Raw data (loadavg): 0.96 0.96 0.91 1/53 5752
Raw data (stat): 5752 (pb2sat) R 5751 1269 1268 0 -1 0 8513 0 0 0 7970 28 0 0 25 0 1 0 806151090 28930048 5277 4294967295 134512640 135726644 3221224592 3221223088 134744163 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 7063 5277 300 300 0 6763 0
vsize: 0

Child status: 20
Real time (s): 84.4193
CPU time (s): 84.4042
CPU user time (s): 84.1102
CPU system time (s): 0.293955
CPU usage (%): 99.9821
Max. virtual memory (Kb): 28252
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####