Trace number 360974

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 0.656899 0.523466

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/
aloul/FPGA_SAT05/normalized-chnl15_16_pb.cnf.cr.opb
MD5SUM7cdaf60ccaf85c600aba211d4d47e719
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 benchmark0.004998
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables480
Total number of constraints62
Number of constraints which are clauses32
Number of constraints which are cardinality constraints (but not clauses)30
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint15
Maximum length of a constraint16
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 17
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)

0.08/0.14	c SAT4J: a SATisfiability library for Java (c) 2004-2006 Daniel Le Berre
0.08/0.14	c This is free software under the GNU LGPL licence. See www.sat4j.org for details.
0.08/0.14	c This software uses some libraries from the Jakarta project. See jakarta.apache.org for details.
0.08/0.15	c no version file found!!!
0.08/0.15	c sun.arch.data.model	32
0.08/0.15	c java.version	1.6.0
0.08/0.15	c os.name	Linux
0.08/0.15	c os.version	2.6.9-22.EL.rootsmp
0.08/0.15	c os.arch	i386
0.08/0.15	c Free memory 1651659224
0.08/0.15	c Max memory 1654456320
0.08/0.15	c Total memory 1654456320
0.08/0.15	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/360974-1176977201/instance-360974-1176977201.opb
0.20/0.20	c reading problem ... 
0.31/0.30	c ... done. Wall clock time 0.096s.
0.31/0.30	c CPU time (experimental) 0.25s.
0.31/0.30	c #vars     480
0.31/0.30	c #constraints  62
0.63/0.50	c starts		: 1
0.63/0.50	c conflicts		: 15
0.63/0.50	c decisions		: 106
0.63/0.50	c propagations		: 318
0.63/0.50	c inspects		: 163
0.63/0.50	c learnt literals	: 0
0.63/0.50	c learnt binary clauses	: 0
0.63/0.50	c learnt ternary clauses	: 0
0.63/0.50	c learnt clauses	: 14
0.63/0.50	c root simplifications	: 0
0.63/0.50	c removed literals (reason simplification)	: 0
0.63/0.50	c reason swapping (by a shorter reason)	: 0
0.63/0.50	c Calls to reduceDB	: 0
0.63/0.50	c speed (decisions/second)	: 524.7524752475247
0.63/0.50	c non guided choices	106
0.63/0.50	s UNSATISFIABLE
0.63/0.50	c Total wall clock time (ms): 0.303

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/node23/watcher-360974-1176977201 -o ROOT/results/node23/solver-360974-1176977201 -C 1800 -W 3600 -M 1800 --output-limit 1,15 java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/360974-1176977201/sat4jPseudoCPClause.jar /tmp/evaluation/360974-1176977201/instance-360974-1176977201.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: 0.98 1.04 0.86 2/77 11948
/proc/meminfo: memFree=1867144/2055920 swapFree=4169120/4192956
[pid=11948] ppid=11946 vsize=152 CPUtime=0
/proc/11948/stat : 11948 (java) D 11946 11948 11526 0 -1 0 41 0 0 0 0 0 0 0 19 0 1 0 145637241 155648 26 18446744073709551615 134512640 134550740 4294956592 18446744073709551615 2495268 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0
/proc/11948/statm: 38 26 19 9 0 4 0

[startup+0.011277 s]
/proc/loadavg: 0.98 1.04 0.86 2/77 11948
/proc/meminfo: memFree=1867144/2055920 swapFree=4169120/4192956
[pid=11948] ppid=11946 vsize=1476 CPUtime=0
/proc/11948/stat : 11948 (java) R 11946 11948 11526 0 -1 0 290 0 0 0 0 0 0 0 18 0 1 0 145637241 1511424 100 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4160642160 0 0 4096 0 0 0 0 17 1 0 0
/proc/11948/statm: 402 106 82 9 0 44 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1476

[startup+0.101298 s]
/proc/loadavg: 0.98 1.04 0.86 2/77 11948
/proc/meminfo: memFree=1867144/2055920 swapFree=4169120/4192956
[pid=11948] ppid=11946 vsize=1780112 CPUtime=0.08
/proc/11948/stat : 11948 (java) S 11946 11948 11526 0 -1 0 3967 0 1 0 6 2 0 0 18 0 12 0 145637241 1822834688 3709 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/11948/statm: 445028 3709 1122 9 0 442646 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1780112

[startup+0.302334 s]
/proc/loadavg: 0.98 1.04 0.86 2/77 11948
/proc/meminfo: memFree=1867144/2055920 swapFree=4169120/4192956
[pid=11948] ppid=11946 vsize=1782364 CPUtime=0.31
/proc/11948/stat : 11948 (java) S 11946 11948 11526 0 -1 0 5145 0 1 0 28 3 0 0 18 0 12 0 145637241 1825140736 4884 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/11948/statm: 445591 4884 1264 9 0 443202 0
Current children cumulated CPU time (s) 0.31
Current children cumulated vsize (KiB) 1782364

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

[startup+0.502378 s]
/proc/loadavg: 0.98 1.04 0.86 2/77 11948
/proc/meminfo: memFree=1867144/2055920 swapFree=4169120/4192956
[pid=11948] ppid=11946 vsize=1783364 CPUtime=0.63
/proc/11948/stat : 11948 (java) S 11946 11948 11526 0 -1 0 7015 0 1 0 59 4 0 0 18 0 13 0 145637241 1826164736 6726 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/11948/statm: 445841 6726 1298 9 0 443452 0
Current children cumulated CPU time (s) 0.63
Current children cumulated vsize (KiB) 1783364

Child status: 20
Real time (s): 0.523466
CPU time (s): 0.656899
CPU user time (s): 0.607907
CPU system time (s): 0.048992
CPU usage (%): 125.49
Max. virtual memory (cumulated for all children) (KiB): 1783364

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.607907
system time used= 0.048992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7064
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= 215
involuntary context switches= 161

runsolver used 0.003999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node23 on Thu Apr 19 10:06:41 UTC 2007

IDJOB= 360974
IDBENCH= 1409
IDSOLVER= 164
FILE ID= node23/360974-1176977201

PBS_JOBID= 4630400

Free space on /tmp= 66452 MiB

SOLVER NAME= sat4jPseudoCPClause 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/aloul/FPGA_SAT05/normalized-chnl15_16_pb.cnf.cr.opb
COMMAND LINE= java  -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/360974-1176977201/sat4jPseudoCPClause.jar /tmp/evaluation/360974-1176977201/instance-360974-1176977201.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node23/watcher-360974-1176977201 -o ROOT/results/node23/solver-360974-1176977201 -C 1800 -W 3600 -M 1800 --output-limit 1,15  java  -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/360974-1176977201/sat4jPseudoCPClause.jar /tmp/evaluation/360974-1176977201/instance-360974-1176977201.opb

META MD5SUM SOLVER= 592978c395d7dcf045996aed0652cb30
MD5SUM BENCH=  7cdaf60ccaf85c600aba211d4d47e719

RANDOM SEED= 257615026

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node23.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		: 3000.276
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		: 3000.276
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:       1867616 kB
Buffers:         10248 kB
Cached:          89652 kB
SwapCached:       2236 kB
Active:          54464 kB
Inactive:        68680 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1867616 kB
SwapTotal:     4192956 kB
SwapFree:      4169120 kB
Dirty:            3612 kB
Writeback:           0 kB
Mapped:          30752 kB
Slab:            50724 kB
Committed_AS:  2457908 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= 66452 MiB

End job on node23 on Thu Apr 19 10:06:42 UTC 2007