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 24694

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-11 21:05:29 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2793 boxname=wulflinc31 idbench=311 idsolver=3 numberseed=0
MD5SUM SOLVER: 03a6a792daea978e4202f78851741568  /oldhome/oroussel/solvers/bsolo_mis
MD5SUM BENCH:  04162d5197113d66489e9d95b6572385  /oldhome/oroussel/tmp/wulflinc31/normalized-ooo.tag12.ucl.opb
REAL COMMAND:  bsolo_mis /oldhome/oroussel/tmp/wulflinc31/normalized-ooo.tag12.ucl.opb
IDLAUNCH: 2793
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
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		: 451.153
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:        922512 kB
Buffers:          8508 kB
Cached:          80700 kB
SwapCached:       3340 kB
Active:          50548 kB
Inactive:        43248 kB
HighTotal:      131008 kB
HighFree:        49448 kB
LowTotal:       903652 kB
LowFree:        873064 kB
SwapTotal:     2097892 kB
SwapFree:      2093816 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5352 kB
Slab:            12584 kB
Committed_AS:    63860 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-11 21:06:49 (client local time) WITH STATUS 0 IN 79.104 SECONDS
stats: 2793 7 79.104 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: No cost function. Find solution and finish.
c Initial problem consists of 20605 variables and 59851 constraints.
#### 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): 0.98 0.97 0.98 2/55 2891
Raw data (stat): 2891 (runsolver) R 2890 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 720989610 1056768 100 4294967295 134512640 135381576 3221221680 3221216900 135158418 0 2147483391 1 90112 0 0 0 17 0 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+9.99979 s]
Raw data (loadavg): 0.98 0.97 0.98 2/55 2891
Raw data (stat): 2891 (bsolo_mis) R 2890 7876 7672 0 -1 0 13568 0 0 0 960 36 0 0 25 0 1 0 720989610 48644096 8502 4294967295 134512640 134714540 3221221792 3221220096 134568032 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 11916 8503 1111 63 0 11853 0
vsize: 47504
[startup+20.0012 s]
Raw data (loadavg): 0.99 0.97 0.98 2/55 2891
Raw data (stat): 2891 (bsolo_mis) R 2890 7876 7672 0 -1 0 101982 0 0 0 1755 241 0 0 25 0 1 0 720989610 397705216 96049 4294967295 134512640 134714540 3221221792 3221220432 134606468 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 97096 96049 1111 63 0 97033 0
vsize: 388384
[startup+30.0017 s]
Raw data (loadavg): 0.99 0.97 0.98 2/55 2891
Raw data (stat): 2891 (bsolo_mis) R 2890 7876 7672 0 -1 0 130906 0 0 0 2691 305 0 0 25 0 1 0 720989610 515829760 124888 4294967295 134512640 134714540 3221221792 3221220432 134606479 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 125935 124888 1111 63 0 125872 0
vsize: 503740
[startup+40.0016 s]
Raw data (loadavg): 0.99 0.97 0.98 2/55 2891
Raw data (stat): 2891 (bsolo_mis) R 2890 7876 7672 0 -1 0 157205 0 0 0 3629 368 0 0 25 0 1 0 720989610 623321088 151131 4294967295 134512640 134714540 3221221792 3221220256 134543097 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 152178 151131 1111 63 0 152115 0
vsize: 608712
[startup+50.003 s]
Raw data (loadavg): 0.99 0.97 0.98 2/55 2893
Raw data (stat): 2891 (bsolo_mis) R 2890 7876 7672 0 -1 0 157205 0 0 0 4628 368 0 0 25 0 1 0 720989610 623321088 151131 4294967295 134512640 134714540 3221221792 3221220176 134542347 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 152178 151131 1111 63 0 152115 0
vsize: 608712
[startup+60.0025 s]
Raw data (loadavg): 0.99 0.97 0.98 2/55 2893
Raw data (stat): 2891 (bsolo_mis) R 2890 7876 7672 0 -1 0 181044 0 0 0 5571 426 0 0 25 0 1 0 720989610 721293312 174970 4294967295 134512640 134714540 3221221792 3221220320 134554866 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 176097 174976 1111 63 0 176034 0
vsize: 704388
[startup+70.0034 s]
Raw data (loadavg): 0.99 0.97 0.98 2/55 2893
Raw data (stat): 2891 (bsolo_mis) R 2890 7876 7672 0 -1 0 213576 0 0 0 6492 506 0 0 25 0 1 0 720989610 853868544 207417 4294967295 134512640 134714540 3221221792 3221220432 134606488 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 208464 207417 1111 63 0 208401 0
vsize: 833856
[startup+79.1269 s]
Raw data (loadavg): 0.99 0.97 0.98 1/54 2893
Raw data (stat): 2891 (bsolo_mis) R 2890 7876 7672 0 -1 0 213576 0 0 0 6492 506 0 0 25 0 1 0 720989610 853868544 207417 4294967295 134512640 134714540 3221221792 3221220432 134606488 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 208464 207417 1111 63 0 208401 0
vsize: 0

Child ended because it received signal 6 (SIGABRT)
Real time (s): 79.1262
CPU time (s): 79.104
CPU user time (s): 73.1009
CPU system time (s): 6.00309
CPU usage (%): 99.9719
Max. virtual memory (Kb): 833856
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####