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.2.accl.ucl.opb
MD5SUM83f02a556772ce851c726a7388954d36
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 35
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 129
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 benchmark3.58545
Number of variables2152
Total number of constraints5613
Number of constraints which are clauses5137
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints476
Minimum length of a constraint1
Maximum length of a constraint11

Trace number 42174 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 01:19:29 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25394 boxname=wulflinc5 idbench=296 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  83f02a556772ce851c726a7388954d36  /oldhome/oroussel/tmp/wulflinc5/normalized-ooo.burch_dill.2.accl.ucl.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-ooo.burch_dill.2.accl.ucl.opb
IDLAUNCH: 25394
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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		: 451.007
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:        819088 kB
Buffers:         34188 kB
Cached:         158368 kB
SwapCached:        700 kB
Active:          72920 kB
Inactive:       121720 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        818836 kB
SwapTotal:     2097136 kB
SwapFree:      2095508 kB
Dirty:              32 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            15284 kB
Committed_AS:    63712 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 01:19:44 (client local time) WITH STATUS 20 IN 15.1927 SECONDS
stats: 25394 7 15.1927 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...

c Decision: 610/9366	Time: 9.30259/86400
c Decision: 610/9366	Time: 10.6264/86400
c Decision: 610/9366	Time: 12.1512/86400
c Decision: 610/9366	Time: 13.8729/86400
s 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): 0.62 0.83 0.87 1/54 6588
Raw data (stat): 6588 (runsolver) R 6587 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 966750407 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): 0.68 0.83 0.87 2/54 6588
Raw data (stat): 6588 (pb2sat-v2) R 6587 7266 7265 0 -1 0 1950 0 0 0 993 5 0 0 25 0 1 0 966750407 8126464 1335 4294967295 134512640 135730672 3221224576 3221223200 134748163 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 1984 1335 301 301 0 1683 0
vsize: 7936
[startup+15.205 s]
Raw data (loadavg): 0.71 0.84 0.87 1/53 6588
Raw data (stat): 6588 (pb2sat-v2) R 6587 7266 7265 0 -1 0 1950 0 0 0 993 5 0 0 25 0 1 0 966750407 8126464 1335 4294967295 134512640 135730672 3221224576 3221223200 134748163 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 1984 1335 301 301 0 1683 0
vsize: 0

Child status: 20
Real time (s): 15.2045
CPU time (s): 15.1927
CPU user time (s): 15.1237
CPU system time (s): 0.068989
CPU usage (%): 99.9224
Max. virtual memory (Kb): 7936
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####