Trace number 42256

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 NameAnswerCPU timeWall clock time
SAT4JPSEUDO 2006.2 HeuristicsSAT 0.959853 0.641036

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/aloul/
FPGA_SAT05/normalized-fpga10_10_sat_pb.cnf.cr.opb
MD5SUM5348009272f1366509266ce8ea16c5e0
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.002999
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables150
Total number of constraints130
Number of constraints which are clauses110
Number of constraints which are cardinality constraints (but not clauses)20
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint5
Maximum length of a constraint10
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 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 11
Number of bits of the biggest sum of numbers4
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)

0.15	c SAT4J: a SATisfiability library for Java (c) 2004-2006 Daniel Le Berre
0.15	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
0.21	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/node67/42256-1149232381/instance-42256-1149232381.opb
0.21	c reading problem ... 
0.30	c ... done. Time 0.089 ms.
0.30	c #vars     150
0.30	c #constraints  130
0.58	c starts		: 1
0.58	c conflicts		: 40
0.58	c decisions		: 191
0.58	c propagations		: 1042
0.58	c inspects		: 1587
0.58	c learnt literals	: 0
0.58	c learnt binary clauses	: 0
0.58	c learnt ternary clauses	: 0
0.58	c learnt clauses	: 40
0.58	c root simplifications	: 0
0.58	c removed literals (reason simplification)	: 0
0.58	c reason swapping (by a shorter reason)	: 0
0.58	c Calls to reduceDB	: 0
0.58	c speed (decisions/second)	: 670.1754385964913
0.58	c non guided choices	41
0.58	s SATISFIABLE
0.58	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
0.58	v x29 -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 x38 -x39 -x40 x41 -x42 -x43 -x44 -x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52 x53 -x54 -x55
0.58	v -x56 -x57 -x58 -x59 -x60 -x61 x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72 -x73 -x74 x75 -x76 -x77 -x78 -x79 -x80 -x81
0.58	v -x82 -x83 -x84 -x85 x86 -x87 -x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 -x96 x97 -x98 -x99 -x100 -x101 -x102 -x103 x104 -x105 -x106
0.58	v x107 -x108 -x109 -x110 -x111 -x112 -x113 -x114 x115 -x116 -x117 x118 -x119 -x120 x121 -x122 -x123 -x124 -x125 -x126 x127 -x128
0.58	v -x129 -x130 -x131 -x132 -x133 -x134 x135 -x136 -x137 -x138 x139 -x140 -x141 -x142 x143 -x144 -x145 x146 -x147 -x148 -x149
0.58	v -x150
0.58	c Total wall clock time (ms): 0.377

Verifier Data (download as text)

OK	0

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/node67/watcher-42256-1149232381 -o ROOT/results/node67/solver-42256-1149232381 -C 1800 -M 1800 -S 64 java -server -Xms1500M -Xmx1500M -jar ROOT/solvers/PB/PB06final/user5/sat4jPseudoHeuristics.jar ROOT/tmp/node67/42256-1149232381/instance-42256-1149232381.opb 70031448 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.77 0.92 0.89 2/64 13098
/proc/meminfo: memFree=1414568/2055920 swapFree=4181736/4192956
[pid=13098] ppid=13096 vsize=308 CPUtime=0
/proc/13098/stat : 13098 (java) R 13096 13098 13053 0 -1 0 57 0 0 0 0 0 0 0 19 0 1 0 188907489 315392 40 18446744073709551615 134512640 134570276 4294956608 18446744073709551615 6890276 0 0 4096 0 0 0 0 17 1 0 0
/proc/13098/statm: 77 40 31 14 0 5 0

Child status: 10
Real time (s): 0.641036
CPU time (s): 0.959853
CPU user time (s): 0.91986
CPU system time (s): 0.039993
CPU usage (%): 149.735
Max. virtual memory (cumulated for all children) (Kb): 0

Launcher Data (download as text)

Begin job on node67 on Fri Jun  2 07:13:01 UTC 2006


FILE ID= 42256-1149232381

PBS_JOBID= 296539

BENCH NAME= ROOT/tmp/node67/42256-1149232381/instance-42256-1149232381.opb
COMMAND LINE= java -server -Xms1500M -Xmx1500M -jar ROOT/solvers/PB/PB06final/user5/sat4jPseudoHeuristics.jar ROOT/tmp/node67/42256-1149232381/instance-42256-1149232381.opb 70031448
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node67/watcher-42256-1149232381 -o ROOT/results/node67/solver-42256-1149232381 -C 1800 -M 1800 -S 64  java -server -Xms1500M -Xmx1500M -jar ROOT/solvers/PB/PB06final/user5/sat4jPseudoHeuristics.jar ROOT/tmp/node67/42256-1149232381/instance-42256-1149232381.opb 70031448

MD5SUM SOLVER= 3cef94aa015dc0dd234d31843a257d70
MD5SUM BENCH=  5348009272f1366509266ce8ea16c5e0

RANDOM SEED= 70031448


/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		: 3000.264
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	: 5931.00
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		: 3000.264
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:       1414776 kB
Buffers:         36932 kB
Cached:         529116 kB
SwapCached:       2976 kB
Active:         112524 kB
Inactive:       462304 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1414776 kB
SwapTotal:     4192956 kB
SwapFree:      4181736 kB
Dirty:             292 kB
Writeback:           0 kB
Mapped:          14688 kB
Slab:            52288 kB
Committed_AS:   234556 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 node67 on Fri Jun  2 07:13:02 UTC 2006