Trace number 43262

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 into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. 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.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. 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 X seconds (see the parameters in the trace). 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 X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    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.
  5. 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 provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerObjective functionCPU timeWall clock time
SAT4JPSEUDO 2006.2 HeuristicsUNSAT 6.34603 5.22271

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-scfxm3.opb
MD5SUM54ab9b432f0ca3b396cc5f5869f6f335
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark1.62475
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables41130
Total number of constraints981
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints981
Minimum length of a constraint30
Maximum length of a constraint1710
Number of terms in the objective function 2070
Biggest coefficient in the objective function 5368709120
Number of bits for the biggest coefficient in the objective function 33
Sum of the numbers in the objective function 421980536439
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 53687091200000
Number of bits of the biggest number in a constraint 46
Biggest sum of numbers in a constraint 326830904793855
Number of bits of the biggest sum of numbers49
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.14	c SAT4J: a SATisfiability library for Java (c) 2004-2006 Daniel Le Berre
0.14	c This is free software under the GNU LGPL licence. See www.sat4j.org for details.
0.14	c no version file found!!!
0.14	c sun.arch.data.model	32
0.14	c java.version	1.5.0_06
0.14	c os.name	Linux
0.14	c os.version	2.6.9-22.EL.rootsmp
0.14	c os.arch	i386
0.14	c Free memory 1548419056
0.14	c Max memory 1551040512
0.14	c Total memory 1551040512
0.14	c Number of processors 2
0.21	c Cutting planes based inference
0.21	c --- Begin Solver configuration ---
0.21	c org.sat4j.minisat.uip.FirstUIP@1df073d
0.21	c org.sat4j.minisat.constraints.PBMaxClauseCardConstrDataStructure@1546e25
0.21	c org.sat4j.minisat.learning.MiniSATLearning@b66cc
0.21	c conflictBoundIncFactor=1.5 learntBoundIncFactor=1.1 initLearntBoundConstraintFactor=10000.0 initConflictBound=100 
0.21	c VSIDS like heuristics from MiniSAT using a heap
0.21	c No reason simplification
0.21	c --- End Solver configuration ---
0.21	c solving ROOT/tmp/node31/43262-1149311890/instance-43262-1149311890.opb
0.21	c reading problem ... 
4.69	c ... done. Time 4.474 ms.
4.69	c #vars     41130
4.69	c #constraints  1536
5.15	c starts		: 0
5.15	c conflicts		: 0
5.15	c decisions		: 0
5.15	c propagations		: 17230
5.15	c inspects		: 51016
5.15	c learnt literals	: 0
5.15	c learnt binary clauses	: 0
5.15	c learnt ternary clauses	: 0
5.15	c learnt clauses	: 0
5.15	c root simplifications	: 0
5.15	c removed literals (reason simplification)	: 0
5.15	c reason swapping (by a shorter reason)	: 0
5.15	c Calls to reduceDB	: 0
5.15	c speed (decisions/second)	: 0.0
5.15	c non guided choices	0
5.15	s UNSATISFIABLE
5.15	c Total wall clock time (ms): 4.943

Verifier Data (download as text)

ERROR: no interpretation found !

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node31/watcher-43262-1149311890 -o ROOT/results/node31/solver-43262-1149311890 -C 1800 -M 1800 -S 64 java -server -Xms1500M -Xmx1500M -jar ROOT/solvers/PB/PB06final/user5/sat4jPseudoHeuristics.jar ROOT/tmp/node31/43262-1149311890/instance-43262-1149311890.opb 910335809 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.87 0.98 0.95 3/64 4461
/proc/meminfo: memFree=1483064/2055920 swapFree=4181480/4192956
[pid=4461] ppid=4459 vsize=164 CPUtime=0
/proc/4461/stat : 4461 (java) R 4459 4461 4415 0 -1 0 180 0 0 0 0 0 0 0 19 0 1 0 196852711 167936 3 18446744073709551615 0 0 4294956838 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/4461/statm: 42 17 12 14 0 2 0

Child status: 20
Real time (s): 5.22271
CPU time (s): 6.34603
CPU user time (s): 6.07808
CPU system time (s): 0.267959
CPU usage (%): 121.508
Max. virtual memory (cumulated for all children) (Kb): 0

Launcher Data (download as text)

Begin job on node31 on Sat Jun  3 05:18:10 UTC 2006


FILE ID= 43262-1149311890

PBS_JOBID= 308043

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-scfxm3.opb
COMMAND LINE= java -server -Xms1500M -Xmx1500M -jar ROOT/solvers/PB/PB06final/user5/sat4jPseudoHeuristics.jar ROOT/tmp/node31/43262-1149311890/instance-43262-1149311890.opb 910335809
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node31/watcher-43262-1149311890 -o ROOT/results/node31/solver-43262-1149311890 -C 1800 -M 1800 -S 64  java -server -Xms1500M -Xmx1500M -jar ROOT/solvers/PB/PB06final/user5/sat4jPseudoHeuristics.jar ROOT/tmp/node31/43262-1149311890/instance-43262-1149311890.opb 910335809

MD5SUM SOLVER= 3cef94aa015dc0dd234d31843a257d70
MD5SUM BENCH=  54ab9b432f0ca3b396cc5f5869f6f335

RANDOM SEED= 910335809


/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.234
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.234
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1483272 kB
Buffers:         30792 kB
Cached:         468332 kB
SwapCached:       3396 kB
Active:          95280 kB
Inactive:       412704 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1483272 kB
SwapTotal:     4192956 kB
SwapFree:      4181480 kB
Dirty:             324 kB
Writeback:           0 kB
Mapped:          14964 kB
Slab:            50648 kB
Committed_AS:   345360 kB
PageTables:       1496 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node31 on Sat Jun  3 05:18:16 UTC 2006