Trace number 431417

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
sat4jPseudoCPClause 2007-03-23OPT3 0.533918 0.495797

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=6-P0=59-P1=29-B.opb
MD5SUM2136726fbb803f220f38b254700007d3
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3
Best CPU time to get the best result obtained on this benchmark0.007997
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3
Optimality of the best value was proved YES
Number of variables18
Total number of constraints3
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 constraints3
Minimum length of a constraint6
Maximum length of a constraint42
Number of terms in the objective function 6
Biggest coefficient in the objective function 32
Number of bits for the biggest coefficient in the objective function 6
Sum of the numbers in the objective function 63
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 2048
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 8048
Number of bits of the biggest sum of numbers13
Number of products (including duplicates)36
Sum of products size (including duplicates)72
Number of different products36
Sum of products size72

Solver Data (download as text)

0.12/0.20	c SAT4J: a SATisfiability library for Java (c) 2004-2006 Daniel Le Berre
0.12/0.20	c This is free software under the GNU LGPL licence. See www.sat4j.org for details.
0.12/0.20	c This software uses some libraries from the Jakarta project. See jakarta.apache.org for details.
0.12/0.21	c no version file found!!!
0.12/0.21	c sun.arch.data.model	32
0.12/0.21	c java.version	1.6.0
0.12/0.21	c os.name	Linux
0.12/0.21	c os.version	2.6.9-22.EL.rootsmp
0.12/0.21	c os.arch	i386
0.12/0.21	c Free memory 1651659224
0.12/0.21	c Max memory 1654456320
0.12/0.21	c Total memory 1654456320
0.12/0.21	c Number of processors 2
0.12/0.27	c Cutting planes based inference (org.sat4j.minisat.constraints.pb.PBSolverClause)
0.12/0.27	--- Begin Solver configuration ---
0.12/0.27	c Stops conflict analysis at the first Unique Implication Point
0.12/0.27	c org.sat4j.minisat.constraints.PBMaxClauseCardConstrDataStructure@691f36
0.12/0.27	c Learn all clauses as in MiniSAT
0.12/0.27	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=10000.0 initConflictBound=100 
0.12/0.27	c VSIDS like heuristics from MiniSAT using a heap
0.12/0.27	c No reason simplification
0.12/0.27	c --- End Solver configuration ---
0.12/0.27	c Simplify asserted PB constraints to clauses
0.12/0.27	c solving /tmp/evaluation/431417-1178006083/instance-431417-1178006083.opb
0.12/0.27	c reading problem ... 
0.24/0.30	c ... done. Wall clock time 0.033s.
0.24/0.30	c CPU time (experimental) 0.19s.
0.24/0.30	c #vars     54
0.24/0.30	c #constraints  76
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):0.141
0.39/0.41	o 3
0.39/0.46	c starts		: 2
0.39/0.46	c conflicts		: 13
0.39/0.46	c decisions		: 20
0.39/0.46	c propagations		: 184
0.39/0.46	c inspects		: 521
0.39/0.46	c learnt literals	: 0
0.39/0.46	c learnt binary clauses	: 0
0.39/0.46	c learnt ternary clauses	: 0
0.39/0.46	c learnt clauses	: 12
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)	: 370.3703703703704
0.39/0.46	c non guided choices	2
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
0.39/0.46	v x31 x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42 -x43 -x44 -x45 -x46 -x47 -x48 x49 x50 -x51 -x52 -x53 -x54
0.39/0.46	c objective function=3
0.39/0.46	c Total wall clock time (ms): 0.197

Verifier Data (download as text)

OK	3

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node26/watcher-431417-1178006083 -o ROOT/results/node26/solver-431417-1178006083 -C 1800 -W 3600 -M 1800 --output-limit 1,15 java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/431417-1178006083/sat4jPseudoCPClause.jar /tmp/evaluation/431417-1178006083/instance-431417-1178006083.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: 0.65 0.89 0.96 3/77 12893
/proc/meminfo: memFree=1818704/2055920 swapFree=4170240/4192956
[pid=12893] ppid=12891 vsize=324 CPUtime=0
/proc/12893/stat : 12893 (java) R 12891 12893 12392 0 -1 0 59 0 0 0 0 0 0 0 18 0 1 0 248525093 331776 44 18446744073709551615 134512640 134550740 4294956592 18446744073709551615 12591908 0 0 4096 0 0 0 0 17 1 0 0
/proc/12893/statm: 81 44 33 9 0 6 0

[startup+0.0949419 s]
/proc/loadavg: 0.65 0.89 0.96 3/77 12893
/proc/meminfo: memFree=1818704/2055920 swapFree=4170240/4192956
[pid=12893] ppid=12891 vsize=1772952 CPUtime=0.01
/proc/12893/stat : 12893 (java) S 12891 12893 12392 0 -1 0 2195 0 1 0 0 1 0 0 18 0 2 0 248525093 1815502848 1946 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 7368 18446744073709551615 0 0 17 1 0 0
/proc/12893/statm: 443238 1946 381 9 0 441252 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1772952

[startup+0.101931 s]
/proc/loadavg: 0.65 0.89 0.96 3/77 12893
/proc/meminfo: memFree=1818704/2055920 swapFree=4170240/4192956
[pid=12893] ppid=12891 vsize=1775952 CPUtime=0.01
/proc/12893/stat : 12893 (java) S 12891 12893 12392 0 -1 0 2869 0 1 0 0 1 0 0 18 0 4 0 248525093 1818574848 2618 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 7368 18446744073709551615 0 0 17 1 0 0
/proc/12893/statm: 443988 2618 646 9 0 441624 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1775952

[startup+0.301953 s]
/proc/loadavg: 0.65 0.89 0.96 3/77 12893
/proc/meminfo: memFree=1818704/2055920 swapFree=4170240/4192956
[pid=12893] ppid=12891 vsize=1781412 CPUtime=0.24
/proc/12893/stat : 12893 (java) S 12891 12893 12392 0 -1 0 4956 0 1 0 20 4 0 0 18 0 12 0 248525093 1824165888 4696 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/12893/statm: 445353 4696 1246 9 0 442964 0
Current children cumulated CPU time (s) 0.24
Current children cumulated vsize (KiB) 1781412

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

[startup+0.401961 s]
/proc/loadavg: 0.65 0.89 0.96 3/77 12893
/proc/meminfo: memFree=1818704/2055920 swapFree=4170240/4192956
[pid=12893] ppid=12891 vsize=1782760 CPUtime=0.39
/proc/12893/stat : 12893 (java) S 12891 12893 12392 0 -1 0 5272 0 1 0 35 4 0 0 18 0 13 0 248525093 1825546240 4998 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/12893/statm: 445690 4998 1287 9 0 443301 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 1782760

Child status: 30
Real time (s): 0.495797
CPU time (s): 0.533918
CPU user time (s): 0.478927
CPU system time (s): 0.054991
CPU usage (%): 107.689
Max. virtual memory (cumulated for all children) (KiB): 1782760

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.478927
system time used= 0.054991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6221
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= 153
involuntary context switches= 134

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node26 on Tue May  1 07:54:43 UTC 2007

IDJOB= 431417
IDBENCH= 48050
IDSOLVER= 164
FILE ID= node26/431417-1178006083

PBS_JOBID= 4728302

Free space on /tmp= 66561 MiB

SOLVER NAME= sat4jPseudoCPClause 2007-03-23
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=6-P0=59-P1=29-B.opb
COMMAND LINE= java  -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/431417-1178006083/sat4jPseudoCPClause.jar /tmp/evaluation/431417-1178006083/instance-431417-1178006083.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node26/watcher-431417-1178006083 -o ROOT/results/node26/solver-431417-1178006083 -C 1800 -W 3600 -M 1800 --output-limit 1,15  java  -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/431417-1178006083/sat4jPseudoCPClause.jar /tmp/evaluation/431417-1178006083/instance-431417-1178006083.opb

META MD5SUM SOLVER= 592978c395d7dcf045996aed0652cb30
MD5SUM BENCH=  2136726fbb803f220f38b254700007d3

RANDOM SEED= 415354235

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node26.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		: 3000.213
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		: 3000.213
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:       1819048 kB
Buffers:         34344 kB
Cached:         112780 kB
SwapCached:       3360 kB
Active:          69504 kB
Inactive:       100744 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1819048 kB
SwapTotal:     4192956 kB
SwapFree:      4170240 kB
Dirty:            3904 kB
Writeback:           0 kB
Mapped:          30592 kB
Slab:            52132 kB
Committed_AS:  1399500 kB
PageTables:       1716 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= 66561 MiB

End job on node26 on Tue May  1 07:54:43 UTC 2007