Trace number 360984

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
sat4jPseudoCP 2007-03-23UNSAT 1.21681 0.898121

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/
aloul/FPGA_SAT05/normalized-chnl40_45_pb.cnf.cr.opb
MD5SUMb95bbeb851a52866877e397310a0a770
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 benchmark0.028994
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables3600
Total number of constraints170
Number of constraints which are clauses90
Number of constraints which are cardinality constraints (but not clauses)80
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint40
Maximum length of a constraint45
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 46
Number of bits of the biggest sum of numbers6
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.PBSolver)
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 solving /tmp/evaluation/360984-1176977220/instance-360984-1176977220.opb
0.20/0.20	c reading problem ... 
0.77/0.66	c ... done. Wall clock time 0.455s.
0.77/0.66	c CPU time (experimental) 0.47s.
0.77/0.66	c #vars     3600
0.77/0.66	c #constraints  170
1.06/0.86	c starts		: 1
1.06/0.86	c conflicts		: 1
1.06/0.86	c decisions		: 781
1.06/0.86	c propagations		: 1796
1.06/0.86	c inspects		: 1055
1.06/0.86	c learnt literals	: 0
1.06/0.86	c learnt binary clauses	: 0
1.06/0.86	c learnt ternary clauses	: 0
1.06/0.86	c learnt clauses	: 0
1.06/0.86	c root simplifications	: 0
1.06/0.86	c removed literals (reason simplification)	: 0
1.06/0.86	c reason swapping (by a shorter reason)	: 0
1.06/0.86	c Calls to reduceDB	: 0
1.06/0.86	c speed (decisions/second)	: 4132.275132275132
1.06/0.86	c non guided choices	781
1.06/0.86	s UNSATISFIABLE
1.06/0.86	c Total wall clock time (ms): 0.66

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/node41/watcher-360984-1176977220 -o ROOT/results/node41/solver-360984-1176977220 -C 1800 -W 3600 -M 1800 --output-limit 1,15 java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/360984-1176977220/sat4jPseudoCP.jar /tmp/evaluation/360984-1176977220/instance-360984-1176977220.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: 0.99 0.97 0.82 2/77 18435
/proc/meminfo: memFree=1711480/2055920 swapFree=4128860/4192956
[pid=18435] ppid=18433 vsize=18568 CPUtime=0
/proc/18435/stat : 18435 (runsolver) R 18433 18435 18098 0 -1 4194368 17 0 0 0 0 0 0 0 19 0 1 0 145633944 19013632 292 18446744073709551615 4194304 4296420 548682068880 18446744073709551615 238390144295 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/18435/statm: 4642 292 257 24 0 2626 0

[startup+0.0647869 s]
/proc/loadavg: 0.99 0.97 0.82 2/77 18435
/proc/meminfo: memFree=1711480/2055920 swapFree=4128860/4192956
[pid=18435] ppid=18433 vsize=1777708 CPUtime=0.04
/proc/18435/stat : 18435 (java) S 18433 18435 18098 0 -1 0 3631 0 1 0 2 2 0 0 19 0 7 0 145633944 1820372992 3373 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 7368 18446744073709551615 0 0 17 0 0 0
/proc/18435/statm: 444427 3373 1073 9 0 442063 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1777708

[startup+0.101788 s]
/proc/loadavg: 0.99 0.97 0.82 2/77 18435
/proc/meminfo: memFree=1711480/2055920 swapFree=4128860/4192956
[pid=18435] ppid=18433 vsize=1780108 CPUtime=0.08
/proc/18435/stat : 18435 (java) S 18433 18435 18098 0 -1 0 3968 0 1 0 6 2 0 0 19 0 12 0 145633944 1822830592 3709 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/18435/statm: 445027 3709 1122 9 0 442646 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1780108

[startup+0.301805 s]
/proc/loadavg: 0.99 0.97 0.82 2/77 18435
/proc/meminfo: memFree=1711480/2055920 swapFree=4128860/4192956
[pid=18435] ppid=18433 vsize=1781420 CPUtime=0.3
/proc/18435/stat : 18435 (java) S 18433 18435 18098 0 -1 0 5154 0 1 0 27 3 0 0 19 0 12 0 145633944 1824174080 4892 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/18435/statm: 445355 4892 1264 9 0 442967 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1781420

[startup+0.70184 s]
/proc/loadavg: 0.99 0.97 0.82 2/77 18435
/proc/meminfo: memFree=1711480/2055920 swapFree=4128860/4192956
[pid=18435] ppid=18433 vsize=1784748 CPUtime=0.88
/proc/18435/stat : 18435 (java) S 18433 18435 18098 0 -1 0 7459 0 1 0 85 3 0 0 19 0 13 0 145633944 1827581952 6707 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/18435/statm: 446187 6707 1314 9 0 443799 0
Current children cumulated CPU time (s) 0.88
Current children cumulated vsize (KiB) 1784748

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

[startup+0.80185 s]
/proc/loadavg: 0.99 0.97 0.82 2/77 18435
/proc/meminfo: memFree=1711480/2055920 swapFree=4128860/4192956
[pid=18435] ppid=18433 vsize=1784876 CPUtime=1.06
/proc/18435/stat : 18435 (java) S 18433 18435 18098 0 -1 0 7679 0 1 0 102 4 0 0 19 0 13 0 145633944 1827713024 6926 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/18435/statm: 446219 6926 1316 9 0 443831 0
Current children cumulated CPU time (s) 1.06
Current children cumulated vsize (KiB) 1784876

Child status: 20
Real time (s): 0.898121
CPU time (s): 1.21681
CPU user time (s): 1.17182
CPU system time (s): 0.044993
CPU usage (%): 135.484
Max. virtual memory (cumulated for all children) (KiB): 1784876

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.17182
system time used= 0.044993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7928
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= 384
involuntary context switches= 309

runsolver used 0.001999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node41 on Thu Apr 19 10:07:01 UTC 2007

IDJOB= 360984
IDBENCH= 1410
IDSOLVER= 160
FILE ID= node41/360984-1176977220

PBS_JOBID= 4630399

Free space on /tmp= 66345 MiB

SOLVER NAME= sat4jPseudoCP 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/aloul/FPGA_SAT05/normalized-chnl40_45_pb.cnf.cr.opb
COMMAND LINE= java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/360984-1176977220/sat4jPseudoCP.jar /tmp/evaluation/360984-1176977220/instance-360984-1176977220.opb       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-360984-1176977220 -o ROOT/results/node41/solver-360984-1176977220 -C 1800 -W 3600 -M 1800 --output-limit 1,15  java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/360984-1176977220/sat4jPseudoCP.jar /tmp/evaluation/360984-1176977220/instance-360984-1176977220.opb       

META MD5SUM SOLVER= 592978c395d7dcf045996aed0652cb30
MD5SUM BENCH=  b95bbeb851a52866877e397310a0a770

RANDOM SEED= 18019292

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node41.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		: 3000.232
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		: 3000.232
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:       1711952 kB
Buffers:         36328 kB
Cached:         223636 kB
SwapCached:       2652 kB
Active:          95168 kB
Inactive:       188416 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1711952 kB
SwapTotal:     4192956 kB
SwapFree:      4128860 kB
Dirty:            3668 kB
Writeback:           0 kB
Mapped:          31332 kB
Slab:            45684 kB
Committed_AS:  2553744 kB
PageTables:       2008 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= 66345 MiB

End job on node41 on Thu Apr 19 10:07:02 UTC 2007