Trace number 364251

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
SAT4JPseudoResolution 2007-03-23OPT100 0.536918 0.509622

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/
primes-dimacs-cnf/normalized-aim-100-2_0-yes1-2.opb
MD5SUMdbb36b6bce03d0b1e099a26354bdabc4
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark100
Best CPU time to get the best result obtained on this benchmark0.004998
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 100
Optimality of the best value was proved YES
Number of variables200
Total number of constraints300
Number of constraints which are clauses298
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints2
Minimum length of a constraint2
Maximum length of a constraint3
Number of terms in the objective function 200
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 200
Number of bits of the sum of numbers in the objective function 8
Biggest number in a constraint 2
Number of bits of the biggest number in a constraint 2
Biggest sum of numbers in a constraint 200
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

Solver Data (download as text)

0.04/0.18	c SAT4J: a SATisfiability library for Java (c) 2004-2006 Daniel Le Berre
0.04/0.18	c This is free software under the GNU LGPL licence. See www.sat4j.org for details.
0.04/0.18	c This software uses some libraries from the Jakarta project. See jakarta.apache.org for details.
0.04/0.19	c no version file found!!!
0.04/0.19	c sun.arch.data.model	32
0.04/0.19	c java.version	1.6.0
0.04/0.19	c os.name	Linux
0.04/0.19	c os.version	2.6.9-22.EL.rootsmp
0.04/0.19	c os.arch	i386
0.04/0.19	c Free memory 1651659224
0.04/0.19	c Max memory 1654456320
0.04/0.19	c Total memory 1654456320
0.04/0.19	c Number of processors 2
0.14/0.24	--- Begin Solver configuration ---
0.14/0.24	c Stops conflict analysis at the first Unique Implication Point
0.14/0.24	c org.sat4j.minisat.constraints.PBMaxClauseCardConstrDataStructure@691f36
0.14/0.24	c Learn all clauses as in MiniSAT
0.14/0.24	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.14/0.24	c VSIDS like heuristics from MiniSAT using a heap
0.14/0.24	c No reason simplification
0.14/0.24	c --- End Solver configuration ---
0.14/0.24	c solving /tmp/evaluation/364251-1177038589/instance-364251-1177038589.opb
0.14/0.24	c reading problem ... 
0.26/0.36	c ... done. Wall clock time 0.117s.
0.26/0.36	c CPU time (experimental) 0.26s.
0.26/0.36	c #vars     200
0.26/0.36	c #constraints  300
0.39/0.41	c SATISFIABLE
0.39/0.41	c OPTIMIZING...
0.39/0.41	c Got one! Elapsed wall clock time (in seconds):0.17
0.39/0.42	o 100
0.39/0.46	c starts		: 2
0.39/0.46	c conflicts		: 59
0.39/0.46	c decisions		: 202
0.39/0.46	c propagations		: 2151
0.39/0.46	c inspects		: 3471
0.39/0.46	c learnt literals	: 8
0.39/0.46	c learnt binary clauses	: 6
0.39/0.46	c learnt ternary clauses	: 19
0.39/0.46	c learnt clauses	: 50
0.39/0.46	c root simplifications	: 0
0.39/0.46	c removed literals (reason simplification)	: 0
0.39/0.46	c reason swapping (by a shorter reason)	: 0
0.39/0.46	c Calls to reduceDB	: 0
0.39/0.46	c speed (decisions/second)	: 18363.636363636364
0.39/0.46	c non guided choices	0
0.39/0.46	s OPTIMUM FOUND
0.39/0.46	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
0.39/0.46	v -x33 x34 -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
0.39/0.46	v -x62 -x63 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 x90
0.39/0.46	v -x91 x92 x93 -x94 -x95 x96 -x97 x98 x99 -x100 -x101 x102 -x103 x104 x105 -x106 x107 -x108 -x109 x110 x111 -x112 x113 -x114 -x115
0.39/0.46	v x116 -x117 x118 x119 -x120 x121 -x122 -x123 x124 -x125 x126 x127 -x128 x129 -x130 -x131 x132 x133 -x134 x135 -x136 x137 -x138
0.39/0.46	v -x139 x140 x141 -x142 x143 -x144 x145 -x146 x147 -x148 -x149 x150 x151 -x152 x153 -x154 x155 -x156 -x157 x158 -x159 x160 -x161
0.39/0.46	v x162 -x163 x164 -x165 x166 x167 -x168 -x169 x170 x171 -x172 x173 -x174 x175 -x176 -x177 x178 -x179 x180 -x181 x182 -x183 x184
0.39/0.46	v x185 -x186 x187 -x188 x189 -x190 -x191 x192 x193 -x194 -x195 x196 x197 -x198 x199 -x200
0.39/0.46	c objective function=100
0.39/0.46	c Total wall clock time (ms): 0.222

Verifier Data (download as text)

OK	100

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node52/watcher-364251-1177038589 -o ROOT/results/node52/solver-364251-1177038589 -C 1800 -W 3600 -M 1800 --output-limit 1,15 java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/364251-1177038589/sat4jPseudoResolution.jar /tmp/evaluation/364251-1177038589/instance-364251-1177038589.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: 1.00 1.00 1.00 2/64 19548
/proc/meminfo: memFree=1786732/2055920 swapFree=4182956/4192956
[pid=19548] ppid=19546 vsize=152 CPUtime=0
/proc/19548/stat : 19548 (java) D 19546 19548 17084 0 -1 0 41 0 0 0 0 0 0 0 20 0 1 0 58703939 155648 26 18446744073709551615 134512640 134550740 4294956592 18446744073709551615 4309796 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0
/proc/19548/statm: 38 26 19 9 0 4 0

[startup+0.09514 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 19548
/proc/meminfo: memFree=1786732/2055920 swapFree=4182956/4192956
[pid=19548] ppid=19546 vsize=1777060 CPUtime=0.03
/proc/19548/stat : 19548 (java) S 19546 19548 17084 0 -1 0 3524 0 1 0 2 1 0 0 18 0 5 0 58703939 1819709440 3269 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 7368 18446744073709551615 0 0 17 0 0 0
/proc/19548/statm: 444265 3269 1046 9 0 441901 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1777060

[startup+0.101139 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 19548
/proc/meminfo: memFree=1786732/2055920 swapFree=4182956/4192956
[pid=19548] ppid=19546 vsize=1777708 CPUtime=0.04
/proc/19548/stat : 19548 (java) S 19546 19548 17084 0 -1 0 3600 0 1 0 3 1 0 0 18 0 7 0 58703939 1820372992 3343 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 7368 18446744073709551615 0 0 17 0 0 0
/proc/19548/statm: 444427 3343 1069 9 0 442063 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1777708

[startup+0.301153 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 19548
/proc/meminfo: memFree=1786732/2055920 swapFree=4182956/4192956
[pid=19548] ppid=19546 vsize=1782292 CPUtime=0.26
/proc/19548/stat : 19548 (java) S 19546 19548 17084 0 -1 0 5012 0 1 0 23 3 0 0 18 0 12 0 58703939 1825067008 4751 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/19548/statm: 445573 4751 1247 9 0 443185 0
Current children cumulated CPU time (s) 0.26
Current children cumulated vsize (KiB) 1782292

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

[startup+0.501168 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 19548
/proc/meminfo: memFree=1786732/2055920 swapFree=4182956/4192956
[pid=19548] ppid=19546 vsize=1785020 CPUtime=0.52
/proc/19548/stat : 19548 (java) S 19546 19548 17084 0 -1 0 6356 0 1 0 48 4 0 0 18 0 12 0 58703939 1827860480 5650 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/19548/statm: 446255 5650 1295 9 0 443867 0
Current children cumulated CPU time (s) 0.52
Current children cumulated vsize (KiB) 1785020

Child status: 30
Real time (s): 0.509622
CPU time (s): 0.536918
CPU user time (s): 0.484926
CPU system time (s): 0.051992
CPU usage (%): 105.356
Max. virtual memory (cumulated for all children) (KiB): 1785020

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.484926
system time used= 0.051992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6360
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= 190
involuntary context switches= 118

runsolver used 0.004999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node52 on Fri Apr 20 03:09:49 UTC 2007

IDJOB= 364251
IDBENCH= 2090
IDSOLVER= 159
FILE ID= node52/364251-1177038589

PBS_JOBID= 4630651

Free space on /tmp= 66310 MiB

SOLVER NAME= SAT4JPseudoResolution 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/primes-dimacs-cnf/normalized-aim-100-2_0-yes1-2.opb
COMMAND LINE= java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/364251-1177038589/sat4jPseudoResolution.jar /tmp/evaluation/364251-1177038589/instance-364251-1177038589.opb           
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node52/watcher-364251-1177038589 -o ROOT/results/node52/solver-364251-1177038589 -C 1800 -W 3600 -M 1800 --output-limit 1,15  java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/364251-1177038589/sat4jPseudoResolution.jar /tmp/evaluation/364251-1177038589/instance-364251-1177038589.opb           

META MD5SUM SOLVER= 592978c395d7dcf045996aed0652cb30
MD5SUM BENCH=  dbb36b6bce03d0b1e099a26354bdabc4

RANDOM SEED= 271295317

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node52.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		: 3000.236
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:       1787204 kB
Buffers:         21320 kB
Cached:         197024 kB
SwapCached:       3744 kB
Active:          54332 kB
Inactive:       174072 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1787204 kB
SwapTotal:     4192956 kB
SwapFree:      4182956 kB
Dirty:            3760 kB
Writeback:           0 kB
Mapped:          16072 kB
Slab:            26264 kB
Committed_AS:  1670124 kB
PageTables:       1488 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= 66310 MiB

End job on node52 on Fri Apr 20 03:09:49 UTC 2007