Trace number 2669979

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 NameAnswerobjective functionCPU timeWall clock time
SAT4J PB CuttingPlanes 2.2.0 2010-05-26OPT3 0.798878 0.536118

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=7-P0=79-P1=41-B.opb
MD5SUM4ddd68556b0128f7c9c0c4c2bfb48c53
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 benchmark0.026995
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 variables21
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 constraint7
Maximum length of a constraint56
Number of terms in the objective function 7
Biggest coefficient in the objective function 64
Number of bits for the biggest coefficient in the objective function 7
Sum of the numbers in the objective function 127
Number of bits of the sum of numbers in the objective function 7
Biggest number in a constraint 8192
Number of bits of the biggest number in a constraint 14
Biggest sum of numbers in a constraint 32424
Number of bits of the biggest sum of numbers15
Number of products (including duplicates)49
Sum of products size (including duplicates)98
Number of different products49
Sum of products size98

Solver Data 

0.08/0.14	c SAT4J: a SATisfiability library for Java (c) 2004-2010 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.
0.08/0.15	c version 2.2.0.v20100526
0.08/0.15	c java.runtime.name	Java(TM) SE Runtime Environment
0.08/0.15	c java.vm.name		Java HotSpot(TM) Server VM
0.08/0.15	c java.vm.version	11.2-b01
0.08/0.15	c java.vm.vendor	Sun Microsystems Inc.
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		2.6.18-164.el5
0.08/0.15	c os.arch		i386
0.08/0.15	c Free memory 		1393557488
0.08/0.15	c Max memory 		1395916800
0.08/0.15	c Total memory 		1395916800
0.08/0.15	c Number of processors 	2
0.23/0.22	c Pseudo Boolean Optimization
0.23/0.22	c Cutting planes based inference (org.sat4j.pb.core.PBSolverCP)
0.23/0.22	c --- Begin Solver configuration ---
0.23/0.22	c Stops conflict analysis at the first Unique Implication Point
0.23/0.22	c org.sat4j.pb.constraints.PBMaxClauseCardConstrDataStructure@1ef9f1d
0.23/0.22	c Learn all clauses as in MiniSAT
0.23/0.22	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.23/0.22	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause taking into account the objective function
0.23/0.22	c No reason simplification
0.23/0.22	c Armin Biere (Picosat) restarts strategy
0.23/0.22	c Glucose learned constraints deletion strategy
0.23/0.22	c timeout=2147483s
0.23/0.22	c DB Simplification allowed=false
0.23/0.22	c --- End Solver configuration ---
0.23/0.22	c solving HOME/instance-2669979-1276698692.opb
0.23/0.22	c reading problem ... 
0.23/0.26	c ... done. Wall clock time 0.043s.
0.23/0.26	c #vars     70
0.23/0.26	c #constraints  102
0.23/0.26	c constraints type 
0.23/0.26	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 49
0.23/0.26	c org.sat4j.pb.constraints.pb.MaxWatchPb => 53
0.56/0.43	c SATISFIABLE
0.56/0.43	c OPTIMIZING...
0.56/0.43	c Got one! Elapsed wall clock time (in seconds):0.211
0.56/0.43	o 3
0.56/0.44	c starts		: 1
0.56/0.44	c conflicts		: 8
0.56/0.44	c decisions		: 16
0.56/0.44	c propagations		: 171
0.56/0.44	c inspects		: 800
0.56/0.44	c learnt literals	: 0
0.56/0.44	c learnt binary clauses	: 0
0.56/0.44	c learnt ternary clauses	: 0
0.56/0.44	c learnt clauses	: 8
0.56/0.44	c ignored clauses	: 0
0.56/0.44	c root simplifications	: 0
0.56/0.44	c removed literals (reason simplification)	: 0
0.56/0.44	c reason swapping (by a shorter reason)	: 0
0.56/0.44	c Calls to reduceDB	: 0
0.56/0.44	c number of reductions to clauses (during analyze)	: 0
0.56/0.44	c number of learned constraints concerned by reduction	: 0
0.56/0.44	c number of learning phase by resolution	: 0
0.56/0.44	c number of learning phase by cutting planes	: 0
0.56/0.44	c speed (assignments/second)	: 19000.0
0.56/0.44	c non guided choices	2
0.56/0.44	c learnt constraints type 
0.56/0.44	c constraints type 
0.56/0.44	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 49
0.56/0.44	c org.sat4j.pb.constraints.pb.MaxWatchPb => 53
0.56/0.44	s OPTIMUM FOUND
0.56/0.44	v x1 x2 -x3 -x4 -x5 -x6 -x7 x8 -x9 x10 x11 -x12 -x13 -x14 -x15 -x16 -x17 -x18 -x19 -x20 -x21 
0.56/0.44	c objective function=3
0.56/0.44	c Total wall clock time (in seconds): 0.221

Verifier Data 

OK	3

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2669979-1276698692/watcher-2669979-1276698692 -o /tmp/evaluation-result-2669979-1276698692/solver-2669979-1276698692 -C 1800 -W 2000 -M 1800 java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar CuttingPlanes HOME/instance-2669979-1276698692.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: 0.00 0.00 0.00 3/106 12256
/proc/meminfo: memFree=1869548/2059040 swapFree=4140048/4192956
[pid=12256] ppid=12254 vsize=1700 CPUtime=0
/proc/12256/stat : 12256 (java6) R 12254 12256 12231 0 -1 4194304 177 0 0 0 0 0 0 0 19 0 1 0 45472844 1740800 82 1992294400 134512640 134550932 4287638144 18446744073709551615 3627556 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/12256/statm: 425 96 73 10 0 30 0

[startup+0.022933 s]
/proc/loadavg: 0.00 0.00 0.00 3/106 12256
/proc/meminfo: memFree=1869548/2059040 swapFree=4140048/4192956
[pid=12256] ppid=12254 vsize=13764 CPUtime=0
/proc/12256/stat : 12256 (java) S 12254 12256 12231 0 -1 4202496 1225 0 1 0 0 0 0 0 15 0 2 0 45472844 14094336 673 1992294400 134512640 134550932 4293378096 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 0 0 0 0
/proc/12256/statm: 3441 673 339 10 0 1206 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 13764

[startup+0.101796 s]
/proc/loadavg: 0.00 0.00 0.00 3/106 12256
/proc/meminfo: memFree=1869548/2059040 swapFree=4140048/4192956
[pid=12256] ppid=12254 vsize=1524184 CPUtime=0.08
/proc/12256/stat : 12256 (java) S 12254 12256 12231 0 -1 4202496 3946 0 1 0 6 2 0 0 15 0 12 0 45472844 1560764416 3386 1992294400 134512640 134550932 4293378096 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0 0
/proc/12256/statm: 381046 3386 1076 10 0 378348 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1524184

[startup+0.300819 s]
/proc/loadavg: 0.00 0.00 0.00 3/106 12256
/proc/meminfo: memFree=1869548/2059040 swapFree=4140048/4192956
[pid=12256] ppid=12254 vsize=1526552 CPUtime=0.35
/proc/12256/stat : 12256 (java) S 12254 12256 12231 0 -1 4202496 5377 0 1 0 32 3 0 0 15 0 13 0 45472844 1563189248 4815 1992294400 134512640 134550932 4293378096 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0 0
/proc/12256/statm: 381638 4815 1361 10 0 378940 0
Current children cumulated CPU time (s) 0.35
Current children cumulated vsize (KiB) 1526552

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

[startup+0.500847 s]
/proc/loadavg: 0.00 0.00 0.00 3/106 12256
/proc/meminfo: memFree=1869548/2059040 swapFree=4140048/4192956
[pid=12256] ppid=12254 vsize=1530104 CPUtime=0.74
/proc/12256/stat : 12256 (java) S 12254 12256 12231 0 -1 4202496 6869 0 1 0 71 3 0 0 15 0 13 0 45472844 1566826496 5967 1992294400 134512640 134550932 4293378096 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0 0
/proc/12256/statm: 382526 5967 1394 10 0 379828 0
Current children cumulated CPU time (s) 0.74
Current children cumulated vsize (KiB) 1530104

Child status: 30
Real time (s): 0.536118
CPU time (s): 0.798878
CPU user time (s): 0.760884
CPU system time (s): 0.037994
CPU usage (%): 149.012
Max. virtual memory (cumulated for all children) (KiB): 1530356

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.760884
system time used= 0.037994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6930
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= 139
involuntary context switches= 67

runsolver used 0.001999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node006 at 2010-06-16 16:31:32
IDJOB=2669979
IDBENCH=47938
IDSOLVER=1165
FILE ID=node006/2669979-1276698692
PBS_JOBID= 11174127
Free space on /tmp= 62504 MiB

SOLVER NAME= SAT4J PB CuttingPlanes 2.2.0 2010-05-26
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=7-P0=79-P1=41-B.opb
COMMAND LINE= java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar CuttingPlanes BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2669979-1276698692/watcher-2669979-1276698692 -o /tmp/evaluation-result-2669979-1276698692/solver-2669979-1276698692 -C 1800 -W 2000 -M 1800  java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar CuttingPlanes HOME/instance-2669979-1276698692.opb

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

MD5SUM BENCH= 4ddd68556b0128f7c9c0c4c2bfb48c53
RANDOM SEED=847619746

node006.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.204
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.40
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		: 3000.204
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1869820 kB
Buffers:          7772 kB
Cached:         100340 kB
SwapCached:       6372 kB
Active:          76996 kB
Inactive:        44776 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1869820 kB
SwapTotal:     4192956 kB
SwapFree:      4140048 kB
Dirty:             304 kB
Writeback:           0 kB
AnonPages:       12464 kB
Mapped:          13104 kB
Slab:            45544 kB
PageTables:       4028 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181236 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62504 MiB
End job on node006 at 2010-06-16 16:31:32