Trace number 361282

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 NameAnswerCPU timeWall clock time
sat4jPseudoCPClause 2007-03-23UNSAT 0.556914 0.469881

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/
aloul/FPGA_SAT05/normalized-chnl20_25_pb.cnf.cr.opb
MD5SUM3fa1f197015efe7b715c83a938660d2f
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.006998
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables1000
Total number of constraints90
Number of constraints which are clauses50
Number of constraints which are cardinality constraints (but not clauses)40
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint20
Maximum length of a constraint25
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 26
Number of bits of the biggest sum of numbers5
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)

0.09/0.14	c SAT4J: a SATisfiability library for Java (c) 2004-2006 Daniel Le Berre
0.09/0.14	c This is free software under the GNU LGPL licence. See www.sat4j.org for details.
0.09/0.14	c This software uses some libraries from the Jakarta project. See jakarta.apache.org for details.
0.09/0.15	c no version file found!!!
0.09/0.15	c sun.arch.data.model	32
0.09/0.15	c java.version	1.6.0
0.09/0.15	c os.name	Linux
0.09/0.15	c os.version	2.6.9-22.EL.rootsmp
0.09/0.15	c os.arch	i386
0.09/0.15	c Free memory 1651659224
0.09/0.15	c Max memory 1654456320
0.09/0.15	c Total memory 1654456320
0.09/0.15	c Number of processors 2
0.20/0.20	c Cutting planes based inference (org.sat4j.minisat.constraints.pb.PBSolverClause)
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=10000.0 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 Simplify asserted PB constraints to clauses
0.20/0.20	c solving /tmp/evaluation/361282-1176981051/instance-361282-1176981051.opb
0.20/0.20	c reading problem ... 
0.30/0.39	c ... done. Wall clock time 0.187s.
0.30/0.39	c CPU time (experimental) 0.33s.
0.30/0.39	c #vars     1000
0.30/0.39	c #constraints  90
0.47/0.46	c starts		: 1
0.47/0.46	c conflicts		: 1
0.47/0.46	c decisions		: 191
0.47/0.46	c propagations		: 496
0.47/0.46	c inspects		: 325
0.47/0.46	c learnt literals	: 0
0.47/0.46	c learnt binary clauses	: 0
0.47/0.46	c learnt ternary clauses	: 0
0.47/0.46	c learnt clauses	: 0
0.47/0.46	c root simplifications	: 0
0.47/0.46	c removed literals (reason simplification)	: 0
0.47/0.46	c reason swapping (by a shorter reason)	: 0
0.47/0.46	c Calls to reduceDB	: 0
0.47/0.46	c speed (decisions/second)	: 2984.375
0.47/0.46	c non guided choices	191
0.47/0.46	s UNSATISFIABLE
0.47/0.46	c Total wall clock time (ms): 0.255

Verifier Data (download as text)

ERROR: no interpretation found !

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node12/watcher-361282-1176981051 -o ROOT/results/node12/solver-361282-1176981051 -C 1800 -W 3600 -M 1800 --output-limit 1,15 java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/361282-1176981051/sat4jPseudoCPClause.jar /tmp/evaluation/361282-1176981051/instance-361282-1176981051.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: 1.08 1.02 0.96 2/77 9927
/proc/meminfo: memFree=1641576/2055920 swapFree=4160068/4192956
[pid=9927] ppid=9925 vsize=200 CPUtime=0
/proc/9927/stat : 9927 (java) R 9925 9927 9188 0 -1 0 48 0 0 0 0 0 0 0 18 0 1 0 174142462 204800 33 18446744073709551615 134512640 134550740 4294956592 18446744073709551615 9696036 0 0 4096 0 0 0 0 17 1 0 0
/proc/9927/statm: 68 35 27 9 0 6 0

[startup+0.0844491 s]
/proc/loadavg: 1.08 1.02 0.96 2/77 9927
/proc/meminfo: memFree=1641576/2055920 swapFree=4160068/4192956
[pid=9927] ppid=9925 vsize=1777844 CPUtime=0.07
/proc/9927/stat : 9927 (java) S 9925 9927 9188 0 -1 0 3810 0 1 0 5 2 0 0 18 0 7 0 174142462 1820512256 3553 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23755 18446744073709551615 0 0 17 1 0 0
/proc/9927/statm: 444461 3553 1089 9 0 442097 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1777844

[startup+0.10145 s]
/proc/loadavg: 1.08 1.02 0.96 2/77 9927
/proc/meminfo: memFree=1641576/2055920 swapFree=4160068/4192956
[pid=9927] ppid=9925 vsize=1780112 CPUtime=0.09
/proc/9927/stat : 9927 (java) S 9925 9927 9188 0 -1 0 3973 0 1 0 6 3 0 0 18 0 12 0 174142462 1822834688 3715 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/9927/statm: 445028 3715 1122 9 0 442646 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1780112

[startup+0.301471 s]
/proc/loadavg: 1.08 1.02 0.96 2/77 9927
/proc/meminfo: memFree=1641576/2055920 swapFree=4160068/4192956
[pid=9927] ppid=9925 vsize=1781412 CPUtime=0.3
/proc/9927/stat : 9927 (java) S 9925 9927 9188 0 -1 0 5116 0 1 0 27 3 0 0 18 0 12 0 174142462 1824165888 4855 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/9927/statm: 445353 4855 1264 9 0 442964 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1781412

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

[startup+0.40148 s]
/proc/loadavg: 1.08 1.02 0.96 2/77 9927
/proc/meminfo: memFree=1641576/2055920 swapFree=4160068/4192956
[pid=9927] ppid=9925 vsize=1782760 CPUtime=0.47
/proc/9927/stat : 9927 (java) S 9925 9927 9188 0 -1 0 5415 0 1 0 43 4 0 0 18 0 13 0 174142462 1825546240 5152 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/9927/statm: 445690 5152 1276 9 0 443301 0
Current children cumulated CPU time (s) 0.47
Current children cumulated vsize (KiB) 1782760

Child status: 20
Real time (s): 0.469881
CPU time (s): 0.556914
CPU user time (s): 0.509922
CPU system time (s): 0.046992
CPU usage (%): 118.522
Max. virtual memory (cumulated for all children) (KiB): 1782760

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.509922
system time used= 0.046992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5534
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= 234
involuntary context switches= 164

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node12 on Thu Apr 19 11:10:51 UTC 2007

IDJOB= 361282
IDBENCH= 1431
IDSOLVER= 164
FILE ID= node12/361282-1176981051

PBS_JOBID= 4630367

Free space on /tmp= 66253 MiB

SOLVER NAME= sat4jPseudoCPClause 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/aloul/FPGA_SAT05/normalized-chnl20_25_pb.cnf.cr.opb
COMMAND LINE= java  -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/361282-1176981051/sat4jPseudoCPClause.jar /tmp/evaluation/361282-1176981051/instance-361282-1176981051.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node12/watcher-361282-1176981051 -o ROOT/results/node12/solver-361282-1176981051 -C 1800 -W 3600 -M 1800 --output-limit 1,15  java  -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/361282-1176981051/sat4jPseudoCPClause.jar /tmp/evaluation/361282-1176981051/instance-361282-1176981051.opb

META MD5SUM SOLVER= 592978c395d7dcf045996aed0652cb30
MD5SUM BENCH=  3fa1f197015efe7b715c83a938660d2f

RANDOM SEED= 703992517

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node12.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		: 3000.239
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		: 3000.239
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:       1641984 kB
Buffers:         22420 kB
Cached:         311200 kB
SwapCached:      11548 kB
Active:          98196 kB
Inactive:       259388 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1641984 kB
SwapTotal:     4192956 kB
SwapFree:      4160068 kB
Dirty:            3680 kB
Writeback:           0 kB
Mapped:          30984 kB
Slab:            41904 kB
Committed_AS:  4360624 kB
PageTables:       1796 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= 66253 MiB

End job on node12 on Thu Apr 19 11:10:51 UTC 2007