Trace number 1857340

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 NameAnswerobjCPU timeWall clock time
SAT4J Pseudo CP 2.1.1OPT2 0.895863 0.648543

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
roussel/factor-mod-B/factor-mod-size=5-P0=11-P1=2-P2=23-B.opb
MD5SUMed9e9f2605ba126b1c81d5ad0f7f804b
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark2
Best CPU time to get the best result obtained on this benchmark0.004999
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2
Optimality of the best value was proved YES
Number of variables30
Total number of constraints5
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 constraints5
Minimum length of a constraint5
Maximum length of a constraint35
Number of terms in the objective function 5
Biggest coefficient in the objective function 16
Number of bits for the biggest coefficient in the objective function 5
Sum of the numbers in the objective function 31
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 512
Number of bits of the biggest number in a constraint 10
Biggest sum of numbers in a constraint 1984
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)50
Sum of products size (including duplicates)100
Number of different products50
Sum of products size100

Solver Data 

0.08/0.15	c SAT4J: a SATisfiability library for Java (c) 2004-2008 Daniel Le Berre
0.08/0.15	c This is free software under the dual EPL/GNU LGPL licenses.
0.08/0.15	c See www.sat4j.org for details.
0.08/0.16	c version 2.1.1.v20090612
0.08/0.16	c sun.arch.data.model	32
0.08/0.16	c java.version	1.6.0_12
0.08/0.16	c os.name	Linux
0.08/0.16	c os.version	2.6.9-22.EL.rootsmp
0.08/0.16	c os.arch	i386
0.08/0.16	c Free memory 1342000320
0.08/0.16	c Max memory 1344274432
0.08/0.16	c Total memory 1344274432
0.08/0.16	c Number of processors 2
0.21/0.23	c Pseudo Boolean Optimization
0.21/0.23	c Cutting planes based inference (org.sat4j.pb.core.PBSolverCP)
0.21/0.23	c --- Begin Solver configuration ---
0.21/0.23	c Stops conflict analysis at the first Unique Implication Point
0.21/0.23	c org.sat4j.pb.constraints.PBMaxClauseCardConstrDataStructure@ecd7e
0.21/0.23	c Learn all clauses as in MiniSAT
0.21/0.23	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.21/0.23	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause taking into account the objective function
0.21/0.23	c No reason simplification
0.21/0.23	c MiniSAT restarts strategy
0.21/0.23	c Memory based learned constraints deletion strategy
0.21/0.23	c timeout=2147483s
0.21/0.23	c DB Simplification allowed=false
0.21/0.23	c --- End Solver configuration ---
0.21/0.23	c solving HOME/instance-1857340-1244943011.opb
0.21/0.23	c reading problem ... 
0.21/0.27	c ... done. Wall clock time 0.04s.
0.21/0.27	c #vars     80
0.21/0.27	c #constraints  107
0.21/0.27	c constraints type 
0.21/0.27	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 50
0.21/0.27	c org.sat4j.pb.constraints.pb.MaxWatchPb => 57
0.68/0.56	c SATISFIABLE
0.68/0.56	c OPTIMIZING...
0.68/0.56	c Got one! Elapsed wall clock time (in seconds):0.328
0.68/0.56	o 2
0.68/0.56	c starts		: 1
0.68/0.56	c conflicts		: 18
0.68/0.56	c decisions		: 44
0.68/0.56	c propagations		: 258
0.68/0.56	c inspects		: 983
0.68/0.56	c learnt literals	: 0
0.68/0.56	c learnt binary clauses	: 0
0.68/0.56	c learnt ternary clauses	: 0
0.68/0.56	c learnt clauses	: 18
0.68/0.56	c ignored clauses	: 0
0.68/0.56	c root simplifications	: 0
0.68/0.56	c removed literals (reason simplification)	: 0
0.68/0.56	c reason swapping (by a shorter reason)	: 0
0.68/0.56	c Calls to reduceDB	: 0
0.68/0.56	c speed (assignments/second)	: 86000.0
0.68/0.56	c non guided choices	24
0.68/0.56	c learnt constraints type 
0.68/0.56	c constraints type 
0.68/0.56	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 50
0.68/0.56	c org.sat4j.pb.constraints.pb.MaxWatchPb => 57
0.68/0.56	s OPTIMUM FOUND
0.68/0.56	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 -x31 x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 x42 -x43 -x44 -x45 -x46 x47 -x48 -x49 -x50 -x51 x52 -x53 -x54 -x55 -x56 x57 -x58 x59 x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72 -x73 -x74 -x75 -x76 x77 -x78 x79 x80 
0.68/0.56	c objective function=2
0.68/0.56	c Total wall clock time (in seconds): 0.333

Verifier Data 

OK	2

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1857340-1244943011/watcher-1857340-1244943011 -o /tmp/evaluation-result-1857340-1244943011/solver-1857340-1244943011 -C 1800 -W 2000 -M 1800 java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar CuttingPlanes HOME/instance-1857340-1244943011.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: 0.97 1.00 1.00 3/64 14101
/proc/meminfo: memFree=1382912/2055920 swapFree=4192952/4192956
[pid=14101] ppid=14099 vsize=152 CPUtime=0
/proc/14101/stat : 14101 (java6) D 14099 14101 13711 0 -1 0 41 0 0 0 0 0 0 0 20 0 1 0 161900739 155648 26 1992294400 134512640 134550932 4294956160 18446744073709551615 10687268 0 2147483391 4096 0 18446744072099863542 0 0 17 1 0 0
/proc/14101/statm: 38 26 19 9 0 4 0

[startup+0.0618509 s]
/proc/loadavg: 0.97 1.00 1.00 3/64 14101
/proc/meminfo: memFree=1382912/2055920 swapFree=4192952/4192956
[pid=14101] ppid=14099 vsize=1471112 CPUtime=0.05
/proc/14101/stat : 14101 (java) S 14099 14101 13711 0 -1 0 3252 0 1 0 3 2 0 0 18 0 7 0 161900739 1506418688 2997 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 1 0 0
/proc/14101/statm: 367778 2997 1019 9 0 365129 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1471112

[startup+0.101855 s]
/proc/loadavg: 0.97 1.00 1.00 3/64 14101
/proc/meminfo: memFree=1382912/2055920 swapFree=4192952/4192956
[pid=14101] ppid=14099 vsize=1473440 CPUtime=0.08
/proc/14101/stat : 14101 (java) S 14099 14101 13711 0 -1 0 3559 0 1 0 6 2 0 0 18 0 12 0 161900739 1508802560 3302 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/14101/statm: 368360 3302 1057 9 0 365711 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1473440

[startup+0.301876 s]
/proc/loadavg: 0.97 1.00 1.00 3/64 14101
/proc/meminfo: memFree=1382912/2055920 swapFree=4192952/4192956
[pid=14101] ppid=14099 vsize=1475288 CPUtime=0.33
/proc/14101/stat : 14101 (java) S 14099 14101 13711 0 -1 0 5035 0 1 0 30 3 0 0 18 0 13 0 161900739 1510694912 4772 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/14101/statm: 368822 4772 1345 9 0 366165 0
Current children cumulated CPU time (s) 0.33
Current children cumulated vsize (KiB) 1475288

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

[startup+0.501895 s]
/proc/loadavg: 0.97 1.00 1.00 3/64 14101
/proc/meminfo: memFree=1382912/2055920 swapFree=4192952/4192956
[pid=14101] ppid=14099 vsize=1478128 CPUtime=0.68
/proc/14101/stat : 14101 (java) S 14099 14101 13711 0 -1 0 6571 0 1 0 64 4 0 0 18 0 13 0 161900739 1513603072 5792 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/14101/statm: 369532 5792 1383 9 0 366875 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 1478128

[startup+0.601909 s]
/proc/loadavg: 0.97 1.00 1.00 3/64 14101
/proc/meminfo: memFree=1382912/2055920 swapFree=4192952/4192956
[pid=14101] ppid=14099 vsize=1479640 CPUtime=0.84
/proc/14101/stat : 14101 (java) S 14099 14101 13711 0 -1 0 7274 0 1 0 80 4 0 0 18 0 13 0 161900739 1515151360 6143 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/14101/statm: 369910 6143 1384 9 0 367253 0
Current children cumulated CPU time (s) 0.84
Current children cumulated vsize (KiB) 1479640

Child status: 30
Real time (s): 0.648543
CPU time (s): 0.895863
CPU user time (s): 0.838872
CPU system time (s): 0.056991
CPU usage (%): 138.135
Max. virtual memory (cumulated for all children) (KiB): 1479640

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.838872
system time used= 0.056991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7584
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= 188
involuntary context switches= 128

runsolver used 0.005999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node27 at 2009-06-14 03:30:11
IDJOB=1857340
IDBENCH=47968
IDSOLVER=681
FILE ID=node27/1857340-1244943011
PBS_JOBID= 9354698
Free space on /tmp= 66388 MiB

SOLVER NAME= SAT4J Pseudo CP 2.1.1
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=5-P0=11-P1=2-P2=23-B.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-1857340-1244943011/watcher-1857340-1244943011 -o /tmp/evaluation-result-1857340-1244943011/solver-1857340-1244943011 -C 1800 -W 2000 -M 1800  java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar CuttingPlanes HOME/instance-1857340-1244943011.opb

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

MD5SUM BENCH= ed9e9f2605ba126b1c81d5ad0f7f804b
RANDOM SEED=1910725713

node27.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		: 2800.234
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	: 5521.40
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		: 2800.234
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:       1383328 kB
Buffers:         73620 kB
Cached:         511448 kB
SwapCached:          4 kB
Active:          50704 kB
Inactive:       548736 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1383328 kB
SwapTotal:     4192956 kB
SwapFree:      4192952 kB
Dirty:             276 kB
Writeback:           0 kB
Mapped:          24228 kB
Slab:            59028 kB
Committed_AS:   129384 kB
PageTables:       1380 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264948 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66388 MiB
End job on node27 at 2009-06-14 03:30:11