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-dlx1c.rwmem.ucl.opb
MD5SUM385b9e348d05231081091c7e4294413e
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 33
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 126
Number of bits of the biggest sum of numbers7
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.54361
Number of variables9051
Total number of constraints25833
Number of constraints which are clauses24941
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints892
Minimum length of a constraint1
Maximum length of a constraint11

Trace number 29269

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc13 THE 2005-05-25 06:14:22 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=20698 boxname=wulflinc13 idbench=288 idsolver=14 numberseed=0
MD5SUM SOLVER: d29da23ec752be69e0579424c0f0767e  /oldhome/oroussel/solvers/sat4jPseudoBis.jar
MD5SUM BENCH:  385b9e348d05231081091c7e4294413e  /oldhome/oroussel/tmp/wulflinc13/normalized-dlx1c.rwmem.ucl.opb
REAL COMMAND:  java -server -Xms650M -Xmx650M -jar /oldhome/oroussel/solvers/sat4jPseudoBis.jar /oldhome/oroussel/tmp/wulflinc13/normalized-dlx1c.rwmem.ucl.opb
IDLAUNCH: 20698
/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:        670704 kB
Buffers:         32440 kB
Cached:         310760 kB
SwapCached:        608 kB
Active:          58268 kB
Inactive:       287508 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        670452 kB
SwapTotal:     2097136 kB
SwapFree:      2096148 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           6156 kB
Slab:            12408 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-25 06:16:01 (client local time) WITH STATUS 20 IN 110.84 SECONDS
stats: 20698 7 110.84 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c SAT4J: a SATisfiability library for Java (c) 2004-2005 Daniel Le Berre
c This is free software under the GNU LGPL licence. See www.sat4j.org for details.
c version Special PB05 Second trial
c --- Begin Solver configuration ---
c org.sat4j.minisat.uip.FirstUIP@1e4cbc4
c org.sat4j.minisat.constraints.PBMinDataStructure@1fdc96c
c org.sat4j.minisat.learning.MiniSATLearning@b2fd8f
c conflictBoundIncFactor=1.5 learntBoundIncFactor=1.1 initLearntBoundConstraintFactor=0.5 initConflictBound=100 
c 
c --- End Solver configuration ---
c solving /oldhome/oroussel/tmp/wulflinc13/normalized-dlx1c.rwmem.ucl.opb
c reading problem ... done. Time 33.137 ms.
c #vars     9051
c #constraints  25833
c starts	: 5
c conflicts	: 1241
c decisions	: 6579
c propagations	: 725168
c inspects	: 2302330
c learned literals	: 2
c learned binary clauses	: 55
c learned ternary clauses	: 33
c learned clauses	: 1238
c root simplifications	: 30
s UNSATISFIABLE
c Total CPU time (ms) : 97.916
#### 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): 0.84 0.94 0.95 2/54 10051
Raw data (stat): 10051 (runsolver) R 10050 1269 1268 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 778420848 1052672 99 4294967295 134512640 135381576 3221224400 3221219620 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+10.0008 s]
Raw data (loadavg): 0.87 0.94 0.95 2/63 10060
Raw data (stat): 10051 (java) R 10050 1269 1268 0 -1 0 18037 0 1 0 789 42 0 0 18 0 10 0 778420848 854097920 20841 4294967295 134512640 134569956 3221224368 3221214652 1130920740 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 208520 20841 13086 16 0 208504 0
vsize: 834080
[startup+20.0054 s]
Raw data (loadavg): 0.89 0.94 0.95 2/63 10060
Raw data (stat): 10051 (java) R 10050 1269 1268 0 -1 0 18037 0 1 0 1627 43 0 0 16 0 10 0 778420848 854097920 22069 4294967295 134512640 134569956 3221224368 3221214336 1079276148 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 208520 22069 13086 16 0 208504 0
vsize: 834080
[startup+30.0066 s]
Raw data (loadavg): 0.90 0.94 0.95 2/63 10060
Raw data (stat): 10051 (java) R 10050 1269 1268 0 -1 0 18037 0 1 0 2481 43 0 0 19 0 10 0 778420848 854097920 22837 4294967295 134512640 134569956 3221224368 3221214408 1076461336 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 208520 22837 13086 16 0 208504 0
vsize: 834080
[startup+40.0067 s]
Raw data (loadavg): 1.08 0.98 0.96 4/64 10061
Raw data (stat): 10051 (java) R 10050 1269 1268 0 -1 0 18098 0 1 0 3278 44 0 0 25 0 11 0 778420848 859414528 24786 4294967295 134512640 134569956 3221224368 3221214500 1130910808 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 209818 24786 13086 16 0 209802 0
vsize: 839272
[startup+50.0072 s]
Raw data (loadavg): 1.07 0.98 0.96 2/64 10061
Raw data (stat): 10051 (java) R 10050 1269 1268 0 -1 0 18099 0 1 0 4181 44 0 0 24 0 11 0 778420848 858193920 25151 4294967295 134512640 134569956 3221224368 3221214760 1131428930 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 209520 25151 13086 16 0 209504 0
vsize: 838080
[startup+60.0074 s]
Raw data (loadavg): 1.06 0.98 0.96 2/64 10061
Raw data (stat): 10051 (java) R 10050 1269 1268 0 -1 0 18099 0 1 0 5113 45 0 0 25 0 11 0 778420848 858193920 25146 4294967295 134512640 134569956 3221224368 3221214528 1131266021 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 209520 25146 13086 16 0 209504 0
vsize: 838080
[startup+70.0084 s]
Raw data (loadavg): 1.05 0.98 0.96 2/64 10061
Raw data (stat): 10051 (java) R 10050 1269 1268 0 -1 0 18099 0 1 0 6058 45 0 0 25 0 11 0 778420848 858193920 25222 4294967295 134512640 134569956 3221224368 3221214824 1131338303 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 209520 25222 13086 16 0 209504 0
vsize: 838080
[startup+80.0092 s]
Raw data (loadavg): 1.04 0.98 0.96 2/64 10061
Raw data (stat): 10051 (java) R 10050 1269 1268 0 -1 0 18099 0 1 0 7007 46 0 0 25 0 11 0 778420848 858193920 25523 4294967295 134512640 134569956 3221224368 3221214528 1131267036 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 209520 25523 13086 16 0 209504 0
vsize: 838080
[startup+90.0113 s]
Raw data (loadavg): 1.03 0.98 0.96 2/64 10061
Raw data (stat): 10051 (java) S 10050 1269 1268 0 -1 0 18099 0 1 0 7965 46 0 0 25 0 11 0 778420848 858193920 25526 4294967295 134512640 134569956 3221224368 3221213296 1073952481 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 209520 25526 13086 16 0 209504 0
vsize: 838080
[startup+98.9073 s]
Raw data (loadavg): 1.03 0.98 0.96 1/53 10062
Raw data (stat): 10051 (java) S 10050 1269 1268 0 -1 0 18099 0 1 0 7965 46 0 0 25 0 11 0 778420848 858193920 25526 4294967295 134512640 134569956 3221224368 3221213296 1073952481 0 4 3 23756 0 0 0 17 0 0 0
Raw data (statm): 209520 25526 13086 16 0 209504 0
vsize: 0

Child status: 20
Real time (s): 98.907
CPU time (s): 110.84
CPU user time (s): 109.958
CPU system time (s): 0.881865
CPU usage (%): 112.065
Max. virtual memory (Kb): 839272
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####