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.rf10.ucl.opb
MD5SUM59052c182e2f0c4ec9aef432e4002ed0
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 67
Number of bits of the biggest number in a constraint 7
Biggest sum of numbers in a constraint 256
Number of bits of the biggest sum of numbers9
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark20.5079
Number of variables55066
Total number of constraints160619
Number of constraints which are clauses156587
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints4032
Minimum length of a constraint1
Maximum length of a constraint13

Trace number 7837 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-04-17 16:50:21 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2616 boxname=wulflinc4 idbench=291 idsolver=6 numberseed=0
MD5SUM SOLVER: 2225cba0d9b2c30e235f6cafc823d7ac  /oldhome/oroussel/solvers/PBS4
MD5SUM BENCH:  59052c182e2f0c4ec9aef432e4002ed0  /oldhome/oroussel/tmp/wulflinc4/normalized-elf.rf10.ucl.opb
REAL COMMAND:  PBS4 /oldhome/oroussel/tmp/wulflinc4/normalized-elf.rf10.ucl.opb
IDLAUNCH: 2616
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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		: 451.169
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:        848420 kB
Buffers:         37720 kB
Cached:         126160 kB
SwapCached:          0 kB
Active:          79900 kB
Inactive:        86880 kB
HighTotal:      131008 kB
HighFree:          980 kB
LowTotal:       903652 kB
LowFree:        847440 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6924 kB
Slab:            13680 kB
Committed_AS:    71676 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-17 16:51:10 (client local time) WITH STATUS 20 IN 48.4886 SECONDS
stats: 2616 7 48.4886 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c PBS v4 by Bashar Al-Rawi & Fadi Aloul
c Solving /oldhome/oroussel/tmp/wulflinc4/normalized-elf.rf10.ucl.opb ......
s UNSATISFIABLE
c Done, CPU Time=41.3807
#### 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): 0.69 0.91 0.90 2/54 2063
Raw data (stat): 2063 (runsolver) R 2062 5897 5896 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 453862648 1052672 99 4294967295 134512640 135381576 3221224528 3221219776 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0008 s]
Raw data (loadavg): 0.74 0.91 0.90 2/54 2063
Raw data (stat): 2063 (PBS4) R 2062 5897 5896 0 -1 0 7403 0 0 0 980 19 0 0 25 0 1 0 453862648 27365376 5744 4294967295 134512640 135450300 3221224640 3221223376 134538554 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6681 5744 231 231 0 6450 0
vsize: 26724
[startup+20.0012 s]
Raw data (loadavg): 0.78 0.91 0.90 2/54 2063
Raw data (stat): 2063 (PBS4) R 2062 5897 5896 0 -1 0 8151 0 0 0 1977 22 0 0 25 0 1 0 453862648 34484224 6393 4294967295 134512640 135450300 3221224640 3221223376 134538421 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8419 6393 231 231 0 8188 0
vsize: 33676
[startup+30.0021 s]
Raw data (loadavg): 0.81 0.91 0.90 2/54 2063
Raw data (stat): 2063 (PBS4) R 2062 5897 5896 0 -1 0 8556 0 0 0 2975 24 0 0 25 0 1 0 453862648 35344384 6699 4294967295 134512640 135450300 3221224640 3221223456 134536841 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8629 6699 231 231 0 8398 0
vsize: 34516
[startup+40.0021 s]
Raw data (loadavg): 0.84 0.92 0.90 2/54 2063
Raw data (stat): 2063 (PBS4) R 2062 5897 5896 0 -1 0 8814 0 0 0 3974 25 0 0 25 0 1 0 453862648 35344384 6849 4294967295 134512640 135450300 3221224640 3221223376 134538549 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8629 6849 231 231 0 8398 0
vsize: 34516
[startup+48.4879 s]
Raw data (loadavg): 0.85 0.92 0.90 1/53 2063
Raw data (stat): 2063 (PBS4) R 2062 5897 5896 0 -1 0 8814 0 0 0 3974 25 0 0 25 0 1 0 453862648 35344384 6849 4294967295 134512640 135450300 3221224640 3221223376 134538549 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8629 6849 231 231 0 8398 0
vsize: 0

Child status: 20
Real time (s): 48.4876
CPU time (s): 48.4886
CPU user time (s): 48.2017
CPU system time (s): 0.286956
CPU usage (%): 100.002
Max. virtual memory (Kb): 34516
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####