Trace number 48696

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 HeuristicsOPT23 3.32949 2.51802

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB06/roussel/
factor/normalized-factor-size=9-P=23-Q=379.opb
MD5SUM66d309218ab81b924256566a07f8cb61
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark23
Best CPU time to get the best result obtained on this benchmark0.003998
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 23
Optimality of the best value was proved YES
Number of variables99
Total number of constraints244
Number of constraints which are clauses243
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint81
Number of terms in the objective function 9
Biggest coefficient in the objective function 256
Number of bits for the biggest coefficient in the objective function 9
Sum of the numbers in the objective function 511
Number of bits of the sum of numbers in the objective function 9
Biggest number in a constraint 65536
Number of bits of the biggest number in a constraint 17
Biggest sum of numbers in a constraint 269838
Number of bits of the biggest sum of numbers19
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.
0.15	c no version file found!!!
0.15	c sun.arch.data.model	32
0.15	c java.version	1.5.0_06
0.15	c os.name	Linux
0.15	c os.version	2.6.9-22.EL.rootsmp
0.15	c os.arch	i386
0.15	c Free memory 1548419056
0.15	c Max memory 1551040512
0.15	c Total memory 1551040512
0.15	c Number of processors 2
0.22	c Cutting planes based inference
0.22	c --- Begin Solver configuration ---
0.22	c org.sat4j.minisat.uip.FirstUIP@1df073d
0.22	c org.sat4j.minisat.constraints.PBMaxClauseCardConstrDataStructure@1546e25
0.22	c org.sat4j.minisat.learning.MiniSATLearning@b66cc
0.22	c conflictBoundIncFactor=1.5 learntBoundIncFactor=1.1 initLearntBoundConstraintFactor=10000.0 initConflictBound=100 
0.22	c VSIDS like heuristics from MiniSAT using a heap
0.22	c No reason simplification
0.22	c --- End Solver configuration ---
0.22	c solving ROOT/tmp/node71/48696-1149850826/instance-48696-1149850826.opb
0.22	c reading problem ... 
0.32	c ... done. Time 0.102 ms.
0.32	c #vars     99
0.32	c #constraints  245
0.58	c SATISFIABLE
0.58	c OPTIMIZING...
0.58	c Got one! Ellapsed CPU time (in seconds):0.366
0.58	o 23
2.48	c starts		: 5
2.48	c conflicts		: 519
2.48	c decisions		: 639
2.48	c propagations		: 8352
2.48	c inspects		: 277638
2.48	c learnt literals	: 0
2.48	c learnt binary clauses	: 0
2.48	c learnt ternary clauses	: 0
2.48	c learnt clauses	: 518
2.48	c root simplifications	: 0
2.48	c removed literals (reason simplification)	: 0
2.48	c reason swapping (by a shorter reason)	: 0
2.48	c Calls to reduceDB	: 0
2.48	c speed (decisions/second)	: 337.0253164556962
2.48	c non guided choices	0
2.48	s OPTIMUM FOUND
2.48	v x1 x2 x3 -x4 x5 -x6 -x7 -x8 -x9 x10 x11 -x12 x13 x14 x15 x16 -x17 x18 x19 x20 -x21 x22 x23 x24 x25 -x26 x27 x28 x29 -x30 x31 x32 x33 x34
2.48	v -x35 x36 x37 x38 -x39 x40 x41 x42 x43 -x44 x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52 -x53 -x54 x55 x56 -x57 x58 x59 x60 x61 -x62 x63
2.48	v -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72 -x73 -x74 -x75 -x76 -x77 -x78 -x79 -x80 -x81 -x82 -x83 -x84 -x85 -x86 -x87 -x88 -x89
2.48	v -x90 -x91 -x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99
2.48	c objective function=23
2.48	c Total wall clock time (ms): 2.264

Verifier Data (download as text)

OK	23

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

runsolver version 3.0.1 (c) roussel@cril.univ-artois.fr

Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
command line: runsolver --timestamp -w ROOT/results/node71/watcher-48696-1149850826 -o ROOT/results/node71/solver-48696-1149850826 -C 1800 -M 1800 -S 64 java -server -Xms1500M -Xmx1500M -jar ROOT/solvers/PB/PB06final/user5/sat4jPseudoHeuristics.jar ROOT/tmp/node71/48696-1149850826/instance-48696-1149850826.opb 45438001 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.85 0.95 0.90 3/64 30976
/proc/meminfo: memFree=1739224/2055920 swapFree=4182216/4192956
[pid=30976] ppid=30974 vsize=1784 CPUtime=0
/proc/30976/stat : 30976 (java) D 30974 30976 30930 0 -1 0 176 0 0 0 0 0 0 0 18 0 1 0 250752237 1826816 146 18446744073709551615 134512640 134570276 4294956608 18446744073709551615 4294960144 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0
/proc/30976/statm: 446 146 111 14 0 91 0

Child status: 30
Real time (s): 2.51802
CPU time (s): 3.32949
CPU user time (s): 3.10453
CPU system time (s): 0.224965
CPU usage (%): 132.226
Max. virtual memory (cumulated for all children) (Kb): 0
The end

Launcher Data (download as text)

Begin job on node71 on Fri Jun  9 11:00:26 UTC 2006


FILE ID= 48696-1149850826

PBS_JOBID= 383048

BENCH NAME= HOME/pub/bench/PB06/final/normalized-PB06/OPT-SMALLINT/submitted-PB06/roussel/factor/normalized-factor-size=9-P=23-Q=379.opb
COMMAND LINE= java -server -Xms1500M -Xmx1500M -jar ROOT/solvers/PB/PB06final/user5/sat4jPseudoHeuristics.jar ROOT/tmp/node71/48696-1149850826/instance-48696-1149850826.opb 45438001
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node71/watcher-48696-1149850826 -o ROOT/results/node71/solver-48696-1149850826 -C 1800 -M 1800 -S 64  java -server -Xms1500M -Xmx1500M -jar ROOT/solvers/PB/PB06final/user5/sat4jPseudoHeuristics.jar ROOT/tmp/node71/48696-1149850826/instance-48696-1149850826.opb 45438001

MD5SUM SOLVER= 3cef94aa015dc0dd234d31843a257d70
MD5SUM BENCH=  66d309218ab81b924256566a07f8cb61

RANDOM SEED= 45438001


/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		: 3000.236
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		: 3000.236
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:       1739432 kB
Buffers:         31756 kB
Cached:         213600 kB
SwapCached:       2368 kB
Active:          55028 kB
Inactive:       198944 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1739432 kB
SwapTotal:     4192956 kB
SwapFree:      4182216 kB
Dirty:             176 kB
Writeback:           0 kB
Mapped:          15104 kB
Slab:            48544 kB
Committed_AS:   511184 kB
PageTables:       1468 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node71 on Fri Jun  9 11:00:28 UTC 2006