Trace number 2661322

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
SAT4J PB CuttingPlanes 2.2.0 2010-05-26OPT6 0.533918 0.841744

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/
submitted-PB06/manquiho/golomb-rulers/normalized-OGR_4.opb
MD5SUM8b1fbd52a1a4f2762439b4bdacc06a04
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark6
Best CPU time to get the best result obtained on this benchmark0.003999
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 6
Optimality of the best value was proved YES
Number of variables40
Total number of constraints43
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 constraints43
Minimum length of a constraint10
Maximum length of a constraint21
Number of terms in the objective function 5
Biggest coefficient in the objective function 16
Number of bits for the biggest coefficient in the objective function 5
Sum of the numbers in the objective function 31
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 32
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 155
Number of bits of the biggest sum of numbers8
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data 

0.08/0.48	c SAT4J: a SATisfiability library for Java (c) 2004-2010 Daniel Le Berre
0.08/0.48	c This is free software under the dual EPL/GNU LGPL licenses.
0.08/0.48	c See www.sat4j.org for details.
0.08/0.49	c version 2.2.0.v20100526
0.08/0.49	c java.runtime.name	Java(TM) SE Runtime Environment
0.08/0.49	c java.vm.name		Java HotSpot(TM) Server VM
0.08/0.49	c java.vm.version	11.2-b01
0.08/0.49	c java.vm.vendor	Sun Microsystems Inc.
0.08/0.49	c sun.arch.data.model	32
0.08/0.49	c java.version		1.6.0_12
0.08/0.49	c os.name		Linux
0.08/0.49	c os.version		2.6.18-164.el5
0.08/0.49	c os.arch		i386
0.08/0.49	c Free memory 		1393557488
0.08/0.49	c Max memory 		1395916800
0.08/0.49	c Total memory 		1395916800
0.08/0.49	c Number of processors 	2
0.16/0.57	c Pseudo Boolean Optimization
0.16/0.57	c Cutting planes based inference (org.sat4j.pb.core.PBSolverCP)
0.16/0.57	c --- Begin Solver configuration ---
0.16/0.57	c Stops conflict analysis at the first Unique Implication Point
0.16/0.57	c org.sat4j.pb.constraints.PBMaxClauseCardConstrDataStructure@16fd0b7
0.16/0.57	c Learn all clauses as in MiniSAT
0.16/0.57	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.16/0.57	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause taking into account the objective function
0.16/0.57	c No reason simplification
0.16/0.57	c Armin Biere (Picosat) restarts strategy
0.16/0.57	c Glucose learned constraints deletion strategy
0.16/0.57	c timeout=2147483s
0.16/0.57	c DB Simplification allowed=false
0.16/0.57	c --- End Solver configuration ---
0.16/0.57	c solving HOME/instance-2661322-1276588081.opb
0.16/0.57	c reading problem ... 
0.29/0.66	c ... done. Wall clock time 0.086s.
0.29/0.66	c #vars     40
0.29/0.66	c #constraints  43
0.29/0.66	c constraints type 
0.29/0.67	c org.sat4j.pb.constraints.pb.MaxWatchPb => 43
0.37/0.72	c SATISFIABLE
0.37/0.73	c OPTIMIZING...
0.37/0.73	c Got one! Elapsed wall clock time (in seconds):0.156
0.37/0.73	o 7
0.37/0.77	c Got one! Elapsed wall clock time (in seconds):0.205
0.37/0.77	o 6
0.37/0.78	c starts		: 2
0.37/0.78	c conflicts		: 11
0.37/0.78	c decisions		: 22
0.37/0.78	c propagations		: 236
0.37/0.78	c inspects		: 1694
0.37/0.78	c learnt literals	: 0
0.37/0.78	c learnt binary clauses	: 0
0.37/0.78	c learnt ternary clauses	: 0
0.37/0.78	c learnt clauses	: 11
0.37/0.78	c ignored clauses	: 0
0.37/0.78	c root simplifications	: 0
0.37/0.78	c removed literals (reason simplification)	: 0
0.37/0.78	c reason swapping (by a shorter reason)	: 0
0.37/0.78	c Calls to reduceDB	: 0
0.37/0.78	c number of reductions to clauses (during analyze)	: 0
0.37/0.78	c number of learned constraints concerned by reduction	: 0
0.37/0.78	c number of learning phase by resolution	: 0
0.37/0.78	c number of learning phase by cutting planes	: 0
0.37/0.78	c speed (assignments/second)	: 78666.66666666667
0.37/0.78	c non guided choices	1
0.37/0.78	c learnt constraints type 
0.37/0.78	c constraints type 
0.37/0.78	c org.sat4j.pb.constraints.pb.MaxWatchPb => 43
0.37/0.78	s OPTIMUM FOUND
0.37/0.78	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 x35 x36 x37 x38 -x39 -x40 
0.37/0.78	c objective function=6
0.37/0.78	c Total wall clock time (in seconds): 0.21

Verifier Data 

OK	6

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2661322-1276588081/watcher-2661322-1276588081 -o /tmp/evaluation-result-2661322-1276588081/solver-2661322-1276588081 -C 1800 -W 2000 -M 1800 java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar CuttingPlanes HOME/instance-2661322-1276588081.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.00 0.05 0.12 2/107 2355
/proc/meminfo: memFree=1706496/2059040 swapFree=4192956/4192956
[pid=2355] ppid=2353 vsize=24036 CPUtime=0
/proc/2355/stat : 2355 (runsolver) S 2353 2355 2330 0 -1 4202560 80 0 0 0 0 0 0 0 17 0 1 0 99128 24612864 107 1992294400 4194304 4302564 140735215029392 18446744073709551615 261052015607 0 2147483391 4096 24578 18446744071699379390 0 0 17 1 0 0 0
/proc/2355/statm: 6009 107 69 27 0 2647 0

[startup+0.106343 s]
/proc/loadavg: 0.00 0.05 0.12 2/107 2355
/proc/meminfo: memFree=1706496/2059040 swapFree=4192956/4192956
[pid=2355] ppid=2353 vsize=13164 CPUtime=0
/proc/2355/stat : 2355 (java) D 2353 2355 2330 0 -1 4194304 445 0 6 0 0 0 0 0 16 0 1 0 99128 13479936 179 1992294400 134512640 134550932 4291085808 18446744073709551615 10958488 0 0 4096 0 18446744071562234166 0 0 17 0 0 0 4
/proc/2355/statm: 3291 179 139 10 0 1121 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 13164

[startup+0.201319 s]
/proc/loadavg: 0.00 0.05 0.12 2/107 2355
/proc/meminfo: memFree=1706496/2059040 swapFree=4192956/4192956
[pid=2355] ppid=2353 vsize=13472 CPUtime=0.01
/proc/2355/stat : 2355 (java) S 2353 2355 2330 0 -1 4202496 1056 0 35 0 0 1 0 0 16 0 2 0 99128 13795328 565 1992294400 134512640 134550932 4291085808 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 0 0 0 8
/proc/2355/statm: 3368 565 253 10 0 1202 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 13472

[startup+0.301336 s]
/proc/loadavg: 0.00 0.05 0.12 2/107 2355
/proc/meminfo: memFree=1706496/2059040 swapFree=4192956/4192956
[pid=2355] ppid=2353 vsize=1520328 CPUtime=0.04
/proc/2355/stat : 2355 (java) S 2353 2355 2330 0 -1 4202496 3324 0 88 0 1 3 0 0 16 0 4 0 99128 1556815872 2854 1992294400 134512640 134550932 4291085808 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 0 0 0 8
/proc/2355/statm: 380082 2854 950 10 0 377392 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1520328

[startup+0.701369 s]
/proc/loadavg: 0.00 0.05 0.12 2/107 2355
/proc/meminfo: memFree=1706496/2059040 swapFree=4192956/4192956
[pid=2355] ppid=2353 vsize=1527292 CPUtime=0.37
/proc/2355/stat : 2355 (java) S 2353 2355 2330 0 -1 4202496 5396 0 88 0 31 6 0 0 16 0 13 0 99128 1563947008 4920 1992294400 134512640 134550932 4291085808 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0 8
/proc/2355/statm: 381823 4920 1359 10 0 379125 0
Current children cumulated CPU time (s) 0.37
Current children cumulated vsize (KiB) 1527292

Solver just ended. Dumping a history of the last processes samples

[startup+0.801376 s]
/proc/loadavg: 0.00 0.05 0.12 2/107 2355
/proc/meminfo: memFree=1706496/2059040 swapFree=4192956/4192956
[pid=2355] ppid=2353 vsize=1527972 CPUtime=0.52
/proc/2355/stat : 2355 (java) S 2353 2355 2330 0 -1 4202496 5769 0 88 0 46 6 0 0 16 0 13 0 99128 1564643328 5240 1992294400 134512640 134550932 4291085808 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0 8
/proc/2355/statm: 381993 5240 1381 10 0 379295 0
Current children cumulated CPU time (s) 0.52
Current children cumulated vsize (KiB) 1527972

Child status: 30
Real time (s): 0.841744
CPU time (s): 0.533918
CPU user time (s): 0.469928
CPU system time (s): 0.06399
CPU usage (%): 63.43
Max. virtual memory (cumulated for all children) (KiB): 1527972

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.469928
system time used= 0.06399
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5775
page faults= 88
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 531
involuntary context switches= 118

runsolver used 0.005999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node052 at 2010-06-15 09:48:01
IDJOB=2661322
IDBENCH=2638
IDSOLVER=1165
FILE ID=node052/2661322-1276588081
PBS_JOBID= 11173560
Free space on /tmp= 62372 MiB

SOLVER NAME= SAT4J PB CuttingPlanes 2.2.0 2010-05-26
BENCH NAME= PB06/final/normalized-PB06/OPT-SMALLINT/submitted-PB06/manquiho/golomb-rulers/normalized-OGR_4.opb
COMMAND LINE= java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar CuttingPlanes BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2661322-1276588081/watcher-2661322-1276588081 -o /tmp/evaluation-result-2661322-1276588081/solver-2661322-1276588081 -C 1800 -W 2000 -M 1800  java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar CuttingPlanes HOME/instance-2661322-1276588081.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 8b1fbd52a1a4f2762439b4bdacc06a04
RANDOM SEED=1072605788

node052.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.262
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.52
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		: 3000.262
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1708464 kB
Buffers:         14648 kB
Cached:         231860 kB
SwapCached:          0 kB
Active:          90868 kB
Inactive:       214556 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1708464 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:             552 kB
Writeback:           0 kB
AnonPages:       58868 kB
Mapped:          15280 kB
Slab:            23304 kB
PageTables:       4028 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180444 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62372 MiB
End job on node052 at 2010-06-15 09:48:02