Trace number 2659845

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 Resolution 2.2.0 2010-05-26OPT6 0.503922 0.923208

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 

0.11/0.65	c SAT4J: a SATisfiability library for Java (c) 2004-2010 Daniel Le Berre
0.11/0.65	c This is free software under the dual EPL/GNU LGPL licenses.
0.11/0.65	c See www.sat4j.org for details.
0.11/0.67	c version 2.2.0.v20100526
0.11/0.67	c java.runtime.name	Java(TM) SE Runtime Environment
0.11/0.67	c java.vm.name		Java HotSpot(TM) Server VM
0.11/0.67	c java.vm.version	11.2-b01
0.11/0.67	c java.vm.vendor	Sun Microsystems Inc.
0.11/0.67	c sun.arch.data.model	32
0.11/0.67	c java.version		1.6.0_12
0.11/0.67	c os.name		Linux
0.11/0.67	c os.version		2.6.18-164.el5
0.11/0.67	c os.arch		i386
0.11/0.67	c Free memory 		1393557488
0.11/0.67	c Max memory 		1395916800
0.11/0.67	c Total memory 		1395916800
0.11/0.67	c Number of processors 	2
0.22/0.73	c Pseudo Boolean Optimization
0.22/0.73	c --- Begin Solver configuration ---
0.22/0.73	c Stops conflict analysis at the first Unique Implication Point
0.22/0.73	c org.sat4j.pb.constraints.CompetResolutionPBMixedWLClauseCardConstrDataStructure@1ac1fe4
0.22/0.73	c Learn all clauses as in MiniSAT
0.22/0.73	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.22/0.73	c VSIDS like heuristics from MiniSAT using a heap lightweight component caching from RSAT taking into account the objective function
0.22/0.73	c Expensive reason simplification
0.22/0.73	c Armin Biere (Picosat) restarts strategy
0.22/0.73	c Glucose learned constraints deletion strategy
0.22/0.73	c timeout=2147483s
0.22/0.73	c DB Simplification allowed=false
0.22/0.73	c --- End Solver configuration ---
0.22/0.73	c solving HOME/instance-2659845-1276588081.opb
0.22/0.73	c reading problem ... 
0.35/0.80	c ... done. Wall clock time 0.072s.
0.35/0.80	c #vars     40
0.35/0.80	c #constraints  43
0.35/0.80	c constraints type 
0.35/0.80	c org.sat4j.pb.constraints.pb.MaxWatchPb => 43
0.35/0.83	c SATISFIABLE
0.35/0.83	c OPTIMIZING...
0.35/0.83	c Got one! Elapsed wall clock time (in seconds):0.102
0.35/0.83	o 7
0.35/0.84	c Got one! Elapsed wall clock time (in seconds):0.115
0.35/0.84	o 6
0.35/0.85	c starts		: 2
0.35/0.85	c conflicts		: 12
0.35/0.85	c decisions		: 18
0.35/0.85	c propagations		: 229
0.35/0.85	c inspects		: 1608
0.35/0.85	c learnt literals	: 1
0.35/0.85	c learnt binary clauses	: 1
0.35/0.85	c learnt ternary clauses	: 2
0.35/0.85	c learnt clauses	: 11
0.35/0.85	c ignored clauses	: 0
0.35/0.85	c root simplifications	: 0
0.35/0.85	c removed literals (reason simplification)	: 60
0.35/0.85	c reason swapping (by a shorter reason)	: 0
0.35/0.85	c Calls to reduceDB	: 0
0.35/0.85	c number of reductions to clauses (during analyze)	: 0
0.35/0.85	c number of learned constraints concerned by reduction	: 0
0.35/0.85	c number of learning phase by resolution	: 0
0.35/0.85	c number of learning phase by cutting planes	: 0
0.35/0.85	c speed (assignments/second)	: 28625.0
0.35/0.85	c non guided choices	1
0.35/0.85	c learnt constraints type 
0.35/0.85	c constraints type 
0.35/0.85	c org.sat4j.pb.constraints.pb.MaxWatchPb => 43
0.35/0.85	s OPTIMUM FOUND
0.35/0.85	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 
0.35/0.85	c objective function=6
0.35/0.85	c Total wall clock time (in seconds): 0.124

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-2659845-1276588081/watcher-2659845-1276588081 -o /tmp/evaluation-result-2659845-1276588081/solver-2659845-1276588081 -C 1800 -W 2000 -M 1800 java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar HOME/instance-2659845-1276588081.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 0.00 0.00 2/107 2362
/proc/meminfo: memFree=1706200/2059040 swapFree=4192956/4192956
[pid=2362] ppid=2360 vsize=24036 CPUtime=0
/proc/2362/stat : 2362 (runsolver) R 2360 2362 2335 0 -1 4202560 81 0 0 0 0 0 0 0 18 0 1 0 100876 24612864 106 1992294400 4194304 4302564 140734761232160 18446744073709551615 255179990007 0 2147483391 4096 24578 0 0 0 17 0 0 0 0
/proc/2362/statm: 6009 106 69 27 0 2647 0

[startup+0.0399141 s]
/proc/loadavg: 0.00 0.00 0.00 2/107 2362
/proc/meminfo: memFree=1706200/2059040 swapFree=4192956/4192956
[pid=2362] ppid=2360 vsize=248 CPUtime=0
/proc/2362/stat : 2362 (java6) S 2360 2362 2335 0 -1 4194304 108 0 1 0 0 0 0 0 17 0 1 0 100876 253952 28 1992294400 134512640 134550932 4289314096 18446744073709551615 5141076 0 2147483391 4096 0 18446744071699379390 0 0 17 0 0 0 0
/proc/2362/statm: 62 28 21 10 0 23 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 248

[startup+0.10093 s]
/proc/loadavg: 0.00 0.00 0.00 2/107 2362
/proc/meminfo: memFree=1706200/2059040 swapFree=4192956/4192956
[pid=2362] ppid=2360 vsize=248 CPUtime=0
/proc/2362/stat : 2362 (java) S 2360 2362 2335 0 -1 4194304 280 0 3 0 0 0 0 0 17 0 1 0 100876 253952 29 1992294400 134512640 134550932 4288176800 18446744073709551615 5141076 0 2147483391 4096 0 18446744071699379390 0 0 17 1 0 0 3
/proc/2362/statm: 62 29 21 10 0 23 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 248

[startup+0.300977 s]
/proc/loadavg: 0.00 0.00 0.00 2/107 2362
/proc/meminfo: memFree=1706200/2059040 swapFree=4192956/4192956
[pid=2362] ppid=2360 vsize=13980 CPUtime=0.02
/proc/2362/stat : 2362 (java) S 2360 2362 2335 0 -1 4202496 1206 0 39 0 0 2 0 0 16 0 2 0 100876 14315520 691 1992294400 134512640 134550932 4288176800 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 0 0 0 8
/proc/2362/statm: 3495 691 354 10 0 1206 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 13980

[startup+0.701076 s]
/proc/loadavg: 0.00 0.00 0.00 2/107 2362
/proc/meminfo: memFree=1706200/2059040 swapFree=4192956/4192956
[pid=2362] ppid=2360 vsize=1526516 CPUtime=0.22
/proc/2362/stat : 2362 (java) S 2360 2362 2335 0 -1 4202496 4940 0 88 0 17 5 0 0 16 0 12 0 100876 1563152384 4464 1992294400 134512640 134550932 4288176800 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0 8
/proc/2362/statm: 381629 4464 1338 10 0 378931 0
Current children cumulated CPU time (s) 0.22
Current children cumulated vsize (KiB) 1526516

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

[startup+0.901111 s]
/proc/loadavg: 0.00 0.00 0.00 2/107 2362
/proc/meminfo: memFree=1706200/2059040 swapFree=4192956/4192956
[pid=2362] ppid=2360 vsize=1528156 CPUtime=0.48
/proc/2362/stat : 2362 (java) S 2360 2362 2335 0 -1 4202496 5621 0 88 0 42 6 0 0 16 0 13 0 100876 1564831744 5145 1992294400 134512640 134550932 4288176800 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0 8
/proc/2362/statm: 382039 5145 1377 10 0 379341 0
Current children cumulated CPU time (s) 0.48
Current children cumulated vsize (KiB) 1528156

Child status: 30
Real time (s): 0.923208
CPU time (s): 0.503922
CPU user time (s): 0.436933
CPU system time (s): 0.066989
CPU usage (%): 54.5838
Max. virtual memory (cumulated for all children) (KiB): 1528156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.436933
system time used= 0.066989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5628
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= 516
involuntary context switches= 133

runsolver used 0.011998 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node039 at 2010-06-15 09:48:01
IDJOB=2659845
IDBENCH=2638
IDSOLVER=1164
FILE ID=node039/2659845-1276588081
PBS_JOBID= 11172212
Free space on /tmp= 62308 MiB

SOLVER NAME= SAT4J PB Resolution 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 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2659845-1276588081/watcher-2659845-1276588081 -o /tmp/evaluation-result-2659845-1276588081/solver-2659845-1276588081 -C 1800 -W 2000 -M 1800  java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar HOME/instance-2659845-1276588081.opb

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

MD5SUM BENCH= 8b1fbd52a1a4f2762439b4bdacc06a04
RANDOM SEED=601542145

node039.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		: 3000.267
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	: 6000.53
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		: 3000.267
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:       1708036 kB
Buffers:         14504 kB
Cached:         231868 kB
SwapCached:          0 kB
Active:          90916 kB
Inactive:       214588 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1708036 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:             484 kB
Writeback:           0 kB
AnonPages:       59080 kB
Mapped:          15264 kB
Slab:            23612 kB
PageTables:       4048 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182232 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= 62304 MiB
End job on node039 at 2010-06-15 09:48:02