Trace number 365666

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 2007-03-23OPT1075471360 1.07683 0.776905

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/
miplib/normalized-mps-v2-20-10-misc02.opb
MD5SUMbe3daaec19eb6f74c780b858afc6652a
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark1075471360
Best CPU time to get the best result obtained on this benchmark0.06299
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1075471360
Optimality of the best value was proved YES
Number of variables89
Total number of constraints39
Number of constraints which are clauses7
Number of constraints which are cardinality constraints (but not clauses)7
Number of constraints which are nor clauses,nor cardinality constraints25
Minimum length of a constraint4
Maximum length of a constraint79
Number of terms in the objective function 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 1073741824
Number of bits of the biggest number in a constraint 31
Biggest sum of numbers in a constraint 3234157567
Number of bits of the biggest sum of numbers32
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)

0.08/0.13	c SAT4J: a SATisfiability library for Java (c) 2004-2006 Daniel Le Berre
0.08/0.13	c This is free software under the GNU LGPL licence. See www.sat4j.org for details.
0.08/0.13	c This software uses some libraries from the Jakarta project. See jakarta.apache.org for details.
0.08/0.14	c no version file found!!!
0.08/0.14	c sun.arch.data.model	32
0.08/0.14	c java.version	1.6.0
0.08/0.14	c os.name	Linux
0.08/0.14	c os.version	2.6.9-22.EL.rootsmp
0.08/0.14	c os.arch	i386
0.08/0.14	c Free memory 1651659224
0.08/0.14	c Max memory 1654456320
0.08/0.14	c Total memory 1654456320
0.08/0.14	c Number of processors 2
0.20/0.20	--- Begin Solver configuration ---
0.20/0.20	c Stops conflict analysis at the first Unique Implication Point
0.20/0.20	c org.sat4j.minisat.constraints.PBMaxClauseCardConstrDataStructure@691f36
0.20/0.20	c Learn all clauses as in MiniSAT
0.20/0.20	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.20/0.20	c VSIDS like heuristics from MiniSAT using a heap
0.20/0.20	c No reason simplification
0.20/0.20	c --- End Solver configuration ---
0.20/0.20	c solving /tmp/evaluation/365666-1177051459/instance-365666-1177051459.opb
0.20/0.20	c reading problem ... 
0.20/0.26	c ... done. Wall clock time 0.06s.
0.20/0.26	c CPU time (experimental) 0.21s.
0.20/0.26	c #vars     89
0.20/0.26	c #constraints  53
0.69/0.53	c SATISFIABLE
0.69/0.53	c OPTIMIZING...
0.69/0.53	c Got one! Elapsed wall clock time (in seconds):0.337
0.69/0.54	o 1076362240
0.85/0.60	c Got one! Elapsed wall clock time (in seconds):0.407
0.85/0.60	o 1076264960
0.85/0.63	c Got one! Elapsed wall clock time (in seconds):0.437
0.85/0.64	o 1076167680
0.85/0.66	c Got one! Elapsed wall clock time (in seconds):0.463
0.85/0.66	o 1075896320
0.85/0.69	c Got one! Elapsed wall clock time (in seconds):0.494
0.85/0.69	o 1075471360
1.00/0.74	c starts		: 17
1.00/0.74	c conflicts		: 1714
1.00/0.74	c decisions		: 2592
1.00/0.74	c propagations		: 25987
1.00/0.74	c inspects		: 208377
1.00/0.74	c learnt literals	: 11
1.00/0.74	c learnt binary clauses	: 20
1.00/0.74	c learnt ternary clauses	: 25
1.00/0.74	c learnt clauses	: 1702
1.00/0.74	c root simplifications	: 0
1.00/0.74	c removed literals (reason simplification)	: 0
1.00/0.74	c reason swapping (by a shorter reason)	: 0
1.00/0.74	c Calls to reduceDB	: 0
1.00/0.74	c speed (decisions/second)	: 56347.82608695652
1.00/0.74	c non guided choices	117
1.00/0.74	s OPTIMUM FOUND
1.00/0.74	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
1.00/0.74	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
1.00/0.74	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 -x82 -x83
1.00/0.74	v -x84 -x85 -x86 -x87 -x88 x89
1.00/0.74	c objective function=1075471360
1.00/0.74	c Total wall clock time (ms): 0.543

Verifier Data (download as text)

OK	1075471360

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node71/watcher-365666-1177051459 -o ROOT/results/node71/solver-365666-1177051459 -C 1800 -W 3600 -M 1800 --output-limit 1,15 java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/365666-1177051459/sat4jPseudoResolution.jar /tmp/evaluation/365666-1177051459/instance-365666-1177051459.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: 0.92 1.00 1.04 3/64 28335
/proc/meminfo: memFree=1105256/2055920 swapFree=4184232/4192956
[pid=28335] ppid=28333 vsize=1800 CPUtime=0
/proc/28335/stat : 28335 (java) D 28333 28335 9755 0 -1 0 165 0 0 0 0 0 0 0 19 0 1 0 181135221 1843200 138 18446744073709551615 134512640 134550740 4294956592 18446744073709551615 4294960144 0 2147483391 4096 0 18446744072099781622 0 0 17 0 0 0
/proc/28335/statm: 450 138 101 9 0 92 0

[startup+0.0304669 s]
/proc/loadavg: 0.92 1.00 1.04 3/64 28335
/proc/meminfo: memFree=1105256/2055920 swapFree=4184232/4192956
[pid=28335] ppid=28333 vsize=1775952 CPUtime=0.01
/proc/28335/stat : 28335 (java) S 28333 28335 9755 0 -1 0 2803 0 1 0 0 1 0 0 19 0 4 0 181135221 1818574848 2551 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 7368 18446744073709551615 0 0 17 0 0 0
/proc/28335/statm: 443988 2556 590 9 0 441624 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1775952

[startup+0.101475 s]
/proc/loadavg: 0.92 1.00 1.04 3/64 28335
/proc/meminfo: memFree=1105256/2055920 swapFree=4184232/4192956
[pid=28335] ppid=28333 vsize=1780256 CPUtime=0.08
/proc/28335/stat : 28335 (java) S 28333 28335 9755 0 -1 0 3999 0 1 0 6 2 0 0 19 0 12 0 181135221 1822982144 3741 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/28335/statm: 445064 3741 1123 9 0 442683 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1780256

[startup+0.30151 s]
/proc/loadavg: 0.92 1.00 1.04 3/64 28335
/proc/meminfo: memFree=1105256/2055920 swapFree=4184232/4192956
[pid=28335] ppid=28333 vsize=1783312 CPUtime=0.33
/proc/28335/stat : 28335 (java) S 28333 28335 9755 0 -1 0 5369 0 1 0 30 3 0 0 19 0 13 0 181135221 1826111488 5105 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/28335/statm: 445828 5105 1272 9 0 443440 0
Current children cumulated CPU time (s) 0.33
Current children cumulated vsize (KiB) 1783312

[startup+0.701561 s]
/proc/loadavg: 0.92 1.00 1.04 3/64 28335
/proc/meminfo: memFree=1105256/2055920 swapFree=4184232/4192956
[pid=28335] ppid=28333 vsize=1783728 CPUtime=1
/proc/28335/stat : 28335 (java) S 28333 28335 9755 0 -1 0 7057 0 1 0 96 4 0 0 19 0 13 0 181135221 1826537472 6205 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/28335/statm: 445932 6205 1301 9 0 443544 0
Current children cumulated CPU time (s) 1
Current children cumulated vsize (KiB) 1783728

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

Child status: 30
Real time (s): 0.776905
CPU time (s): 1.07683
CPU user time (s): 1.02684
CPU system time (s): 0.049992
CPU usage (%): 138.606
Max. virtual memory (cumulated for all children) (KiB): 1784280

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.02684
system time used= 0.049992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7341
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= 354
involuntary context switches= 249

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node71 on Fri Apr 20 06:44:19 UTC 2007

IDJOB= 365666
IDBENCH= 2480
IDSOLVER= 159
FILE ID= node71/365666-1177051459

PBS_JOBID= 4640135

Free space on /tmp= 66443 MiB

SOLVER NAME= SAT4JPseudoResolution 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-misc02.opb
COMMAND LINE= java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/365666-1177051459/sat4jPseudoResolution.jar /tmp/evaluation/365666-1177051459/instance-365666-1177051459.opb           
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node71/watcher-365666-1177051459 -o ROOT/results/node71/solver-365666-1177051459 -C 1800 -W 3600 -M 1800 --output-limit 1,15  java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/365666-1177051459/sat4jPseudoResolution.jar /tmp/evaluation/365666-1177051459/instance-365666-1177051459.opb           

META MD5SUM SOLVER= 592978c395d7dcf045996aed0652cb30
MD5SUM BENCH=  be3daaec19eb6f74c780b858afc6652a

RANDOM SEED= 976417908

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node71.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:       1105728 kB
Buffers:         67408 kB
Cached:         795068 kB
SwapCached:       2620 kB
Active:         246680 kB
Inactive:       631440 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1105728 kB
SwapTotal:     4192956 kB
SwapFree:      4184232 kB
Dirty:            3752 kB
Writeback:           0 kB
Mapped:          20836 kB
Slab:            58100 kB
Committed_AS:  3526704 kB
PageTables:       1456 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= 66443 MiB

End job on node71 on Fri Apr 20 06:44:20 UTC 2007