Trace number 431020

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 2007-03-23OPT3 0.269958 0.292767

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=6-P0=41-P1=19-B.opb
MD5SUM515f2452a47dcd7c700e28959e56e1e0
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 benchmark0.013997
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 8012
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)

0.09/0.13	c SAT4J: a SATisfiability library for Java (c) 2004-2006 Daniel Le Berre
0.09/0.13	c This is free software under the GNU LGPL licence. See www.sat4j.org for details.
0.09/0.13	c This software uses some libraries from the Jakarta project. See jakarta.apache.org for details.
0.09/0.14	c no version file found!!!
0.09/0.14	c sun.arch.data.model	32
0.09/0.14	c java.version	1.6.0
0.09/0.14	c os.name	Linux
0.09/0.14	c os.version	2.6.9-22.EL.rootsmp
0.09/0.14	c os.arch	i386
0.09/0.14	c Free memory 1651659224
0.09/0.14	c Max memory 1654456320
0.09/0.14	c Total memory 1654456320
0.09/0.14	c Number of processors 2
0.21/0.20	--- Begin Solver configuration ---
0.21/0.20	c Stops conflict analysis at the first Unique Implication Point
0.21/0.20	c org.sat4j.minisat.constraints.PBMaxClauseCardConstrDataStructure@691f36
0.21/0.20	c Learn all clauses as in MiniSAT
0.21/0.20	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.21/0.20	c VSIDS like heuristics from MiniSAT using a heap
0.21/0.20	c No reason simplification
0.21/0.20	c --- End Solver configuration ---
0.21/0.20	c solving /tmp/evaluation/431020-1178001944/instance-431020-1178001944.opb
0.21/0.20	c reading problem ... 
0.21/0.23	c ... done. Wall clock time 0.032s.
0.21/0.23	c CPU time (experimental) 0.19s.
0.21/0.23	c #vars     54
0.21/0.23	c #constraints  76
0.21/0.24	c SATISFIABLE
0.21/0.24	c OPTIMIZING...
0.21/0.24	c Got one! Elapsed wall clock time (in seconds):0.045
0.21/0.24	o 3
0.21/0.25	c starts		: 1
0.21/0.25	c conflicts		: 7
0.21/0.25	c decisions		: 17
0.21/0.25	c propagations		: 134
0.21/0.25	c inspects		: 351
0.21/0.25	c learnt literals	: 0
0.21/0.25	c learnt binary clauses	: 0
0.21/0.25	c learnt ternary clauses	: 0
0.21/0.25	c learnt clauses	: 7
0.21/0.25	c root simplifications	: 0
0.21/0.25	c removed literals (reason simplification)	: 0
0.21/0.25	c reason swapping (by a shorter reason)	: 0
0.21/0.25	c Calls to reduceDB	: 0
0.21/0.25	c speed (decisions/second)	: 8500.0
0.21/0.25	c non guided choices	3
0.21/0.25	s OPTIMUM FOUND
0.21/0.25	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
0.21/0.25	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
0.21/0.25	c objective function=3
0.21/0.25	c Total wall clock time (ms): 0.049

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/node23/watcher-431020-1178001944 -o ROOT/results/node23/solver-431020-1178001944 -C 1800 -W 3600 -M 1800 --output-limit 1,15 java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/431020-1178001944/sat4jPseudoResolution.jar /tmp/evaluation/431020-1178001944/instance-431020-1178001944.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: 1.00 0.98 0.99 3/77 10205
/proc/meminfo: memFree=1851360/2055920 swapFree=4169104/4192956
[pid=10205] ppid=10203 vsize=1800 CPUtime=0
/proc/10205/stat : 10205 (java) D 10203 10205 8832 0 -1 0 169 0 0 0 0 0 0 0 20 0 1 0 248111543 1843200 143 18446744073709551615 134512640 134550740 4294956592 18446744073709551615 4294960144 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0
/proc/10205/statm: 450 143 106 9 0 92 0

[startup+0.0269029 s]
/proc/loadavg: 1.00 0.98 0.99 3/77 10205
/proc/meminfo: memFree=1851360/2055920 swapFree=4169104/4192956
[pid=10205] ppid=10203 vsize=1774112 CPUtime=0.02
/proc/10205/stat : 10205 (java) S 10203 10205 8832 0 -1 0 2516 0 1 0 0 2 0 0 18 0 4 0 248111543 1816690688 2267 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 7368 18446744073709551615 0 0 17 1 0 0
/proc/10205/statm: 443528 2267 387 9 0 441542 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1774112

[startup+0.102291 s]
/proc/loadavg: 1.00 0.98 0.99 3/77 10205
/proc/meminfo: memFree=1851360/2055920 swapFree=4169104/4192956
[pid=10205] ppid=10203 vsize=1780108 CPUtime=0.09
/proc/10205/stat : 10205 (java) S 10203 10205 8832 0 -1 0 3987 0 1 0 6 3 0 0 18 0 12 0 248111543 1822830592 3730 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/10205/statm: 445027 3730 1123 9 0 442646 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1780108

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

[startup+0.201312 s]
/proc/loadavg: 1.00 0.98 0.99 3/77 10205
/proc/meminfo: memFree=1851360/2055920 swapFree=4169104/4192956
[pid=10205] ppid=10203 vsize=1782172 CPUtime=0.21
/proc/10205/stat : 10205 (java) S 10203 10205 8832 0 -1 0 4866 0 1 0 17 4 0 0 18 0 12 0 248111543 1824944128 4606 18446744073709551615 134512640 134550740 4294956448 18446744073709551615 4294960144 0 0 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/10205/statm: 445543 4606 1244 9 0 443155 0
Current children cumulated CPU time (s) 0.21
Current children cumulated vsize (KiB) 1782172

Child status: 30
Real time (s): 0.292767
CPU time (s): 0.269958
CPU user time (s): 0.223965
CPU system time (s): 0.045993
CPU usage (%): 92.2091
Max. virtual memory (cumulated for all children) (KiB): 1782172

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.223965
system time used= 0.045993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5039
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= 142
involuntary context switches= 63

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node23 on Tue May  1 06:45:44 UTC 2007

IDJOB= 431020
IDBENCH= 48022
IDSOLVER= 159
FILE ID= node23/431020-1178001944

PBS_JOBID= 4728247

Free space on /tmp= 66561 MiB

SOLVER NAME= SAT4JPseudoResolution 2007-03-23
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=6-P0=41-P1=19-B.opb
COMMAND LINE= java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/431020-1178001944/sat4jPseudoResolution.jar /tmp/evaluation/431020-1178001944/instance-431020-1178001944.opb           
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node23/watcher-431020-1178001944 -o ROOT/results/node23/solver-431020-1178001944 -C 1800 -W 3600 -M 1800 --output-limit 1,15  java -server -Xms1600M -Xmx1600M -jar /tmp/evaluation/431020-1178001944/sat4jPseudoResolution.jar /tmp/evaluation/431020-1178001944/instance-431020-1178001944.opb           

META MD5SUM SOLVER= 592978c395d7dcf045996aed0652cb30
MD5SUM BENCH=  515f2452a47dcd7c700e28959e56e1e0

RANDOM SEED= 399951680

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:       1851832 kB
Buffers:         34168 kB
Cached:          80660 kB
SwapCached:       2472 kB
Active:          84996 kB
Inactive:        53200 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1851832 kB
SwapTotal:     4192956 kB
SwapFree:      4169104 kB
Dirty:            3604 kB
Writeback:           0 kB
Mapped:          30844 kB
Slab:            51396 kB
Committed_AS:  3074028 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= 66561 MiB

End job on node23 on Tue May  1 06:45:45 UTC 2007