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-elf.rf6.ucl.opb
MD5SUMfbb9f3f53fc41017a2181faaddd3d8ec
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 10
Number of bits of the biggest number in a constraint 4
Biggest sum of numbers in a constraint 31
Number of bits of the biggest sum of numbers5
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.007998
Number of variables67
Total number of constraints132
Number of constraints which are clauses120
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints12
Minimum length of a constraint1
Maximum length of a constraint7

Trace number 6308 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-04-14 04:31:05 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=4804 boxname=wulflinc1 idbench=292 idsolver=13 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  fbb9f3f53fc41017a2181faaddd3d8ec  /oldhome/oroussel/tmp/wulflinc1/normalized-elf.rf6.ucl.opb
REAL COMMAND:  minisat+ -w /oldhome/oroussel/tmp/wulflinc1/normalized-elf.rf6.ucl.opb /oldhome/oroussel/tmp/wulflinc1/normalized-elf.rf6.ucl.opb
IDLAUNCH: 4804
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        835804 kB
Buffers:         41268 kB
Cached:         133016 kB
SwapCached:          0 kB
Active:         110824 kB
Inactive:        66504 kB
HighTotal:      131008 kB
HighFree:         5432 kB
LowTotal:       903652 kB
LowFree:        830372 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           7200 kB
Slab:            15580 kB
Committed_AS:    92820 kB
PageTables:        344 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-14 04:31:05 (client local time) WITH STATUS 20 IN 0.014997 SECONDS
stats: 4804 7 0.014997 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 131 PB-constraints to clauses...
c   -- Unit propagations: ppp
c   -- Detecting intervals from adjacent constraints: ############
c   -- Clauses(.)/Splits(s): ......................................................................................
c ---[ 114]---> BDD-cost:    1
c ---[ 103]---> BDD-cost:    1
c ---[  92]---> BDD-cost:    1
c ---[  87]---> BDD-cost:    1
c ---[  64]---> BDD-cost:    1
c ---[  59]---> BDD-cost:    1
c ---[  54]---> BDD-cost:    1
c ---[  40]---> BDD-cost:    1
c ---[  38]---> BDD-cost:    1
c ---[  33]---> BDD-cost:    1
c ---[  25]---> BDD-cost:    1
c ---[  23]---> BDD-cost:    1
c ---[  11]---> BDD-cost:    8
c ---[  10]---> BDD-cost:    8
c ---[   9]---> BDD-cost:    1
c ---[   8]---> BDD-cost:    1
c ---[   7]---> BDD-cost:    1
c ---[   6]---> BDD-cost:    6
c ---[   5]---> BDD-cost:    1
c ---[   4]---> BDD-cost:    1
c ---[   3]---> BDD-cost:    8
c ---[   2]---> BDD-cost:    8
c ---[   1]---> BDD-cost:    1
c ---[   0]---> BDD-cost:    1
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |     251      649 |      83       0        0     nan |  0.000 % |
c ==============================================================================
c UNSATISFIABLE
s UNKNOWN
c _______________________________________________________________________________
c 
c restarts              : 1
c conflicts             : 3              (333 /sec)
c decisions             : 2              (222 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 0.008998 s
c _______________________________________________________________________________
#### 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
Raw data (loadavg): 0.78 0.94 0.96 1/56 22155
Raw data (stat): 22155 (runsolver) R 22154 12452 12451 0 -1 64 4 0 0 0 0 0 0 0 20 0 1 0 366652230 1052672 99 4294967295 134512640 135381576 3221224464 3221219708 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+0.024161 s]
Raw data (loadavg): 0.78 0.94 0.96 1/55 22155
Raw data (stat): 22155 (runsolver) R 22154 12452 12451 0 -1 64 4 0 0 0 0 0 0 0 20 0 1 0 366652230 1052672 99 4294967295 134512640 135381576 3221224464 3221219708 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child status: 20
Real time (s): 0.023905
CPU time (s): 0.014997
CPU user time (s): 0.008998
CPU system time (s): 0.005999
CPU usage (%): 62.7358
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####