Trace number 1856512

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
SAT4J Pseudo CP 2.1.1UNSAT 1.66675 0.993555

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/
submitted-PB06/roussel/normalized-pigeon-cardinality-41-40.opb
MD5SUM2ea7e3b5e107f983d069c627d91480a3
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
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 benchmark0.093985
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables1640
Total number of constraints81
Number of constraints which are clauses41
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 constraint40
Maximum length of a constraint41
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 42
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 

0.08/0.14	c SAT4J: a SATisfiability library for Java (c) 2004-2008 Daniel Le Berre
0.08/0.14	c This is free software under the dual EPL/GNU LGPL licenses.
0.08/0.14	c See www.sat4j.org for details.
0.08/0.14	c version 2.1.1.v20090612
0.08/0.15	c sun.arch.data.model	32
0.08/0.15	c java.version	1.6.0_12
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 1342000320
0.08/0.15	c Max memory 1344274432
0.08/0.15	c Total memory 1344274432
0.08/0.15	c Number of processors 2
0.24/0.20	c Pseudo Boolean Optimization
0.24/0.20	c Cutting planes based inference (org.sat4j.pb.core.PBSolverCP)
0.24/0.20	c --- Begin Solver configuration ---
0.24/0.20	c Stops conflict analysis at the first Unique Implication Point
0.24/0.20	c org.sat4j.pb.constraints.PBMaxClauseCardConstrDataStructure@ecd7e
0.24/0.20	c Learn all clauses as in MiniSAT
0.24/0.20	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.24/0.20	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause taking into account the objective function
0.24/0.20	c No reason simplification
0.24/0.20	c MiniSAT restarts strategy
0.24/0.20	c Memory based learned constraints deletion strategy
0.24/0.20	c timeout=2147483s
0.24/0.20	c DB Simplification allowed=false
0.24/0.20	c --- End Solver configuration ---
0.24/0.20	c solving HOME/instance-1856512-1244913800.opb
0.24/0.20	c reading problem ... 
0.56/0.41	c ... done. Wall clock time 0.203s.
0.56/0.41	c #vars     1640
0.56/0.41	c #constraints  81
0.56/0.41	c constraints type 
0.56/0.41	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 41
0.56/0.41	c org.sat4j.pb.constraints.pb.MinWatchCardPB => 40
1.52/0.97	c starts		: 1
1.52/0.97	c conflicts		: 40
1.52/0.97	c decisions		: 781
1.52/0.97	c propagations		: 1678
1.52/0.97	c inspects		: 1678
1.52/0.97	c learnt literals	: 0
1.52/0.97	c learnt binary clauses	: 0
1.52/0.97	c learnt ternary clauses	: 0
1.52/0.97	c learnt clauses	: 39
1.52/0.97	c ignored clauses	: 0
1.52/0.97	c root simplifications	: 0
1.52/0.97	c removed literals (reason simplification)	: 0
1.52/0.97	c reason swapping (by a shorter reason)	: 0
1.52/0.97	c Calls to reduceDB	: 0
1.52/0.97	c speed (assignments/second)	: 3001.7889087656526
1.52/0.97	c non guided choices	781
1.52/0.97	c learnt constraints type 
1.52/0.97	c org.sat4j.pb.constraints.pb.MinWatchCardPB => 39
1.52/0.97	c constraints type 
1.52/0.97	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 41
1.52/0.97	c org.sat4j.pb.constraints.pb.MinWatchCardPB => 40
1.52/0.97	s UNSATISFIABLE
1.52/0.97	c Total wall clock time (in seconds): 0.766

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1856512-1244913800/watcher-1856512-1244913800 -o /tmp/evaluation-result-1856512-1244913800/solver-1856512-1244913800 -C 1800 -W 2000 -M 1800 java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar CuttingPlanes HOME/instance-1856512-1244913800.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12737
/proc/meminfo: memFree=1567536/2055920 swapFree=4182324/4192956
[pid=12737] ppid=12735 vsize=1612 CPUtime=0
/proc/12737/stat : 12737 (java6) R 12735 12737 12516 0 -1 0 153 0 0 0 0 0 0 0 20 0 1 0 158976385 1650688 125 1992294400 134512640 134550932 4294956160 18446744073709551615 3998176 0 0 4096 0 0 0 0 17 1 0 0
/proc/12737/statm: 403 127 91 9 0 45 0

[startup+0.042863 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12737
/proc/meminfo: memFree=1567536/2055920 swapFree=4182324/4192956
[pid=12737] ppid=12735 vsize=1469440 CPUtime=0.03
/proc/12737/stat : 12737 (java) S 12735 12737 12516 0 -1 0 3091 0 1 0 1 2 0 0 18 0 5 0 158976385 1504706560 2838 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 1 0 0
/proc/12737/statm: 367360 2838 965 9 0 364711 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1469440

[startup+0.10287 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12737
/proc/meminfo: memFree=1567536/2055920 swapFree=4182324/4192956
[pid=12737] ppid=12735 vsize=1472584 CPUtime=0.08
/proc/12737/stat : 12737 (java) S 12735 12737 12516 0 -1 0 3634 0 1 0 6 2 0 0 18 0 12 0 158976385 1507926016 3377 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/12737/statm: 368146 3377 1068 9 0 365494 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1472584

[startup+0.302909 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12737
/proc/meminfo: memFree=1567536/2055920 swapFree=4182324/4192956
[pid=12737] ppid=12735 vsize=1475096 CPUtime=0.37
/proc/12737/stat : 12737 (java) S 12735 12737 12516 0 -1 0 5072 0 1 0 34 3 0 0 18 0 12 0 158976385 1510498304 4808 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/12737/statm: 368774 4808 1357 9 0 366117 0
Current children cumulated CPU time (s) 0.37
Current children cumulated vsize (KiB) 1475096

[startup+0.701978 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12737
/proc/meminfo: memFree=1567536/2055920 swapFree=4182324/4192956
[pid=12737] ppid=12735 vsize=1476792 CPUtime=1.15
/proc/12737/stat : 12737 (java) S 12735 12737 12516 0 -1 0 6915 0 1 0 111 4 0 0 18 0 13 0 158976385 1512235008 6180 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/12737/statm: 369198 6180 1414 9 0 366541 0
Current children cumulated CPU time (s) 1.15
Current children cumulated vsize (KiB) 1476792

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

[startup+0.902013 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 12737
/proc/meminfo: memFree=1567536/2055920 swapFree=4182324/4192956
[pid=12737] ppid=12735 vsize=1477816 CPUtime=1.52
/proc/12737/stat : 12737 (java) S 12735 12737 12516 0 -1 0 7879 0 1 0 147 5 0 0 18 0 13 0 158976385 1513283584 6848 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/12737/statm: 369454 6848 1414 9 0 366797 0
Current children cumulated CPU time (s) 1.52
Current children cumulated vsize (KiB) 1477816

Child status: 20
Real time (s): 0.993555
CPU time (s): 1.66675
CPU user time (s): 1.60876
CPU system time (s): 0.057991
CPU usage (%): 167.756
Max. virtual memory (cumulated for all children) (KiB): 1478160

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.60875
system time used= 0.057991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8423
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= 283
involuntary context switches= 225

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node48 at 2009-06-13 19:23:20
IDJOB=1856512
IDBENCH=2604
IDSOLVER=681
FILE ID=node48/1856512-1244913800
PBS_JOBID= 9354575
Free space on /tmp= 66264 MiB

SOLVER NAME= SAT4J Pseudo CP 2.1.1
BENCH NAME= PB06/final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/roussel/normalized-pigeon-cardinality-41-40.opb
COMMAND LINE= java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar CuttingPlanes BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1856512-1244913800/watcher-1856512-1244913800 -o /tmp/evaluation-result-1856512-1244913800/solver-1856512-1244913800 -C 1800 -W 2000 -M 1800  java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar CuttingPlanes HOME/instance-1856512-1244913800.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 2ea7e3b5e107f983d069c627d91480a3
RANDOM SEED=508283129

node48.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.270
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		: 3000.270
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:       1568016 kB
Buffers:         65416 kB
Cached:         342920 kB
SwapCached:       4424 kB
Active:          34620 kB
Inactive:       381600 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1568016 kB
SwapTotal:     4192956 kB
SwapFree:      4182324 kB
Dirty:             316 kB
Writeback:           0 kB
Mapped:          13608 kB
Slab:            57680 kB
Committed_AS:   122124 kB
PageTables:       1380 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= 66264 MiB
End job on node48 at 2009-06-13 19:23:21