Trace number 372369

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
sat4jPseudoCP 2007-03-23OPT5867 1.15882 0.800693

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-LIN/submittedPB07/
poldner/PB/testset/normalized-6_12.opb
MD5SUMd3b3d1e364c50657a7515a2e4087a65b
Bench CategoryOPT-SMALLINT-LIN (optimisation, small integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark5867
Best CPU time to get the best result obtained on this benchmark0.006998
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 5867
Optimality of the best value was proved YES
Number of variables78
Total number of constraints84
Number of constraints which are clauses72
Number of constraints which are cardinality constraints (but not clauses)12
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint6
Number of terms in the objective function 78
Biggest coefficient in the objective function 2194
Number of bits for the biggest coefficient in the objective function 12
Sum of the numbers in the objective function 39785
Number of bits of the sum of numbers in the objective function 16
Biggest number in a constraint 2194
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 39785
Number of bits of the biggest sum of numbers16
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 (download as text)

0.07/0.14	c SAT4J: a SATisfiability library for Java (c) 2004-2006 Daniel Le Berre
0.07/0.14	c This is free software under the GNU LGPL licence. See www.sat4j.org for details.
0.07/0.14	c This software uses some libraries from the Jakarta project. See jakarta.apache.org for details.
0.07/0.15	c no version file found!!!
0.07/0.15	c sun.arch.data.model	32
0.07/0.15	c java.version	1.6.0
0.07/0.15	c os.name	Linux
0.07/0.15	c os.version	2.6.9-22.EL.rootsmp
0.07/0.15	c os.arch	i386
0.07/0.15	c Free memory 1651659224
0.07/0.15	c Max memory 1654456320
0.07/0.15	c Total memory 1654456320
0.07/0.15	c Number of processors 2
0.19/0.21	c Cutting planes based inference (org.sat4j.minisat.constraints.pb.PBSolver)
0.19/0.21	--- Begin Solver configuration ---
0.19/0.21	c Stops conflict analysis at the first Unique Implication Point
0.19/0.21	c org.sat4j.minisat.constraints.PBMaxClauseCardConstrDataStructure@691f36
0.19/0.21	c Learn all clauses as in MiniSAT
0.19/0.21	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=10000.0 initConflictBound=100 
0.19/0.21	c VSIDS like heuristics from MiniSAT using a heap
0.19/0.21	c No reason simplification
0.19/0.21	c --- End Solver configuration ---
0.19/0.21	c solving /tmp/evaluation/372369-1177363412/instance-372369-1177363412.opb
0.19/0.21	c reading problem ... 
0.19/0.25	c ... done. Wall clock time 0.044s.
0.19/0.25	c CPU time (experimental) 0.2s.
0.19/0.25	c #vars     78
0.19/0.25	c #constraints  96
0.19/0.26	c SATISFIABLE
0.19/0.26	c OPTIMIZING...
0.19/0.26	c Got one! Elapsed wall clock time (in seconds):0.053
0.19/0.26	o 6639
0.48/0.40	c Got one! Elapsed wall clock time (in seconds):0.19
0.48/0.40	o 6401
0.48/0.46	c Got one! Elapsed wall clock time (in seconds):0.251
0.48/0.46	o 6038
0.65/0.51	c Got one! Elapsed wall clock time (in seconds):0.302
0.65/0.51	o 5867
0.99/0.76	c starts		: 5
0.99/0.76	c conflicts		: 40
0.99/0.76	c decisions		: 80
0.99/0.76	c propagations		: 980
0.99/0.76	c inspects		: 4600
0.99/0.76	c learnt literals	: 0
0.99/0.76	c learnt binary clauses	: 0
0.99/0.76	c learnt ternary clauses	: 0
0.99/0.76	c learnt clauses	: 39
0.99/0.76	c root simplifications	: 0
0.99/0.76	c removed literals (reason simplification)	: 0
0.99/0.76	c reason swapping (by a shorter reason)	: 0
0.99/0.76	c Calls to reduceDB	: 0
0.99/0.76	c speed (decisions/second)	: 318.7250996015936
0.99/0.76	c non guided choices	0
0.99/0.76	s OPTIMUM FOUND
0.99/0.77	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
0.99/0.77	v -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 x56
0.99/0.77	v -x57 -x58 -x59 -x60 -x61 x62 -x63 -x64 -x65 -x66 -x67 x68 -x69 -x70 -x71 -x72 -x73 x74 -x75 -x76 -x77 -x78
0.99/0.77	c objective function=5867
0.99/0.77	c Total wall clock time (ms): 0.558

Verifier Data (download as text)

OK	5867

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node18/watcher-372369-1177363412 -o ROOT/results/node18/solver-372369-1177363412 -C 1800 -W 3600 -M 1800 --output-limit 1,15 java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/372369-1177363412/sat4jPseudoCP.jar /tmp/evaluation/372369-1177363412/instance-372369-1177363412.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): 3600 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.78 0.95 0.89 2/77 15410
/proc/meminfo: memFree=1656432/2055920 swapFree=4147180/4192956
[pid=15410] ppid=15408 vsize=272 CPUtime=0
/proc/15410/stat : 15410 (java) R 15408 15410 14634 0 -1 0 47 0 0 0 0 0 0 0 18 0 1 0 184258551 278528 33 18446744073709551615 134512640 134550740 4294956480 18446744073709551615 7865351 0 0 4096 0 0 0 0 17 1 0 0
/proc/15410/statm: 68 37 28 9 0 6 0

[startup+0.0158131 s]
/proc/loadavg: 0.78 0.95 0.89 2/77 15410
/proc/meminfo: memFree=1656432/2055920 swapFree=4147180/4192956
[pid=15410] ppid=15408 vsize=12652 CPUtime=0
/proc/15410/stat : 15410 (java) S 15408 15410 14634 0 -1 0 877 0 1 0 0 0 0 0 18 0 2 0 184258551 12955648 635 18446744073709551615 134512640 134550740 4294956336 18446744073709551615 4294960144 0 0 0 7368 18446744073709551615 0 0 17 1 0 0
/proc/15410/statm: 3163 635 311 9 0 1243 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 12652

[startup+0.101424 s]
/proc/loadavg: 0.78 0.95 0.89 2/77 15410
/proc/meminfo: memFree=1656432/2055920 swapFree=4147180/4192956
[pid=15410] ppid=15408 vsize=1777844 CPUtime=0.07
/proc/15410/stat : 15410 (java) S 15408 15410 14634 0 -1 0 3863 0 1 0 5 2 0 0 18 0 7 0 184258551 1820512256 3607 18446744073709551615 134512640 134550740 4294956336 18446744073709551615 4294960144 0 0 0 23755 18446744073709551615 0 0 17 1 0 0
/proc/15410/statm: 444461 3607 1092 9 0 442097 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1777844

[startup+0.301441 s]
/proc/loadavg: 0.78 0.95 0.89 2/77 15410
/proc/meminfo: memFree=1656432/2055920 swapFree=4147180/4192956
[pid=15410] ppid=15408 vsize=1781744 CPUtime=0.31
/proc/15410/stat : 15410 (java) S 15408 15410 14634 0 -1 0 5151 0 1 0 28 3 0 0 18 0 13 0 184258551 1824505856 4891 18446744073709551615 134512640 134550740 4294956336 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/15410/statm: 445436 4892 1264 9 0 443048 0
Current children cumulated CPU time (s) 0.31
Current children cumulated vsize (KiB) 1781744

[startup+0.701478 s]
/proc/loadavg: 0.78 0.95 0.89 2/77 15410
/proc/meminfo: memFree=1656432/2055920 swapFree=4147180/4192956
[pid=15410] ppid=15408 vsize=1785740 CPUtime=0.99
/proc/15410/stat : 15410 (java) S 15408 15410 14634 0 -1 0 9130 0 1 0 95 4 0 0 18 0 13 0 184258551 1828597760 8092 18446744073709551615 134512640 134550740 4294956336 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/15410/statm: 446435 8092 1297 9 0 444047 0
Current children cumulated CPU time (s) 0.99
Current children cumulated vsize (KiB) 1785740

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

Child status: 30
Real time (s): 0.800693
CPU time (s): 1.15882
CPU user time (s): 1.10183
CPU system time (s): 0.056991
CPU usage (%): 144.727
Max. virtual memory (cumulated for all children) (KiB): 1785740

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.10183
system time used= 0.056991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9887
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 287
involuntary context switches= 238

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node18 on Mon Apr 23 21:23:32 UTC 2007

IDJOB= 372369
IDBENCH= 24967
IDSOLVER= 160
FILE ID= node18/372369-1177363412

PBS_JOBID= 4675240

Free space on /tmp= 66483 MiB

SOLVER NAME= sat4jPseudoCP 2007-03-23
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-LIN/submittedPB07/poldner/PB/testset/normalized-6_12.opb
COMMAND LINE= java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/372369-1177363412/sat4jPseudoCP.jar /tmp/evaluation/372369-1177363412/instance-372369-1177363412.opb       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-372369-1177363412 -o ROOT/results/node18/solver-372369-1177363412 -C 1800 -W 3600 -M 1800 --output-limit 1,15  java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/372369-1177363412/sat4jPseudoCP.jar /tmp/evaluation/372369-1177363412/instance-372369-1177363412.opb       

META MD5SUM SOLVER= 592978c395d7dcf045996aed0652cb30
MD5SUM BENCH=  d3b3d1e364c50657a7515a2e4087a65b

RANDOM SEED= 898252842

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node18.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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:       1656840 kB
Buffers:         55164 kB
Cached:         239856 kB
SwapCached:      14720 kB
Active:         207500 kB
Inactive:       128704 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1656840 kB
SwapTotal:     4192956 kB
SwapFree:      4147180 kB
Dirty:            3780 kB
Writeback:           0 kB
Mapped:          30336 kB
Slab:            48432 kB
Committed_AS:  5373224 kB
PageTables:       1776 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66483 MiB

End job on node18 on Mon Apr 23 21:23:33 UTC 2007