Trace number 2661245

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 2010-05-26OPT9663726592 0.394939 0.323821

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/www.csit.fsu.edu/
~burkardt/datasets/mps/normalized-mps-v2-20-10-testprob.opb
MD5SUM24c749e45d4bbd6a8ec98f3e49fb7aad
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark9663726592
Best CPU time to get the best result obtained on this benchmark0.036993
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 9663726592
Optimality of the best value was proved YES
Number of variables56
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 constraint12
Maximum length of a constraint44
Number of terms in the objective function 56
Biggest coefficient in the objective function 9663676416
Number of bits for the biggest coefficient in the objective function 34
Sum of the numbers in the objective function 19327377394
Number of bits of the sum of numbers in the objective function 35
Biggest number in a constraint 9663676416
Number of bits of the biggest number in a constraint 34
Biggest sum of numbers in a constraint 19327377394
Number of bits of the biggest sum of numbers35
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data 

0.09/0.14	c SAT4J: a SATisfiability library for Java (c) 2004-2010 Daniel Le Berre
0.09/0.14	c This is free software under the dual EPL/GNU LGPL licenses.
0.09/0.14	c See www.sat4j.org for details.
0.09/0.15	c version 2.2.0.v20100526
0.09/0.15	c java.runtime.name	Java(TM) SE Runtime Environment
0.09/0.15	c java.vm.name		Java HotSpot(TM) Server VM
0.09/0.15	c java.vm.version	11.2-b01
0.09/0.15	c java.vm.vendor	Sun Microsystems Inc.
0.09/0.15	c sun.arch.data.model	32
0.09/0.15	c java.version		1.6.0_12
0.09/0.15	c os.name		Linux
0.09/0.15	c os.version		2.6.18-164.el5
0.09/0.15	c os.arch		i386
0.09/0.15	c Free memory 		1393557488
0.09/0.15	c Max memory 		1395916800
0.09/0.15	c Total memory 		1395916800
0.09/0.15	c Number of processors 	2
0.26/0.21	c Pseudo Boolean Optimization
0.26/0.21	c Cutting planes based inference (org.sat4j.pb.core.PBSolverCP)
0.26/0.21	c --- Begin Solver configuration ---
0.26/0.21	c Stops conflict analysis at the first Unique Implication Point
0.26/0.21	c org.sat4j.pb.constraints.PBMaxClauseCardConstrDataStructure@16fd0b7
0.26/0.21	c Learn all clauses as in MiniSAT
0.26/0.21	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.26/0.21	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause taking into account the objective function
0.26/0.21	c No reason simplification
0.26/0.21	c Armin Biere (Picosat) restarts strategy
0.26/0.21	c Glucose learned constraints deletion strategy
0.26/0.21	c timeout=2147483s
0.26/0.21	c DB Simplification allowed=false
0.26/0.21	c --- End Solver configuration ---
0.26/0.21	c solving HOME/instance-2661245-1276542761.opb
0.26/0.21	c reading problem ... 
0.26/0.25	c ... done. Wall clock time 0.035s.
0.26/0.25	c #vars     56
0.26/0.25	c #constraints  7
0.26/0.25	c constraints type 
0.26/0.25	c org.sat4j.pb.constraints.pb.MaxWatchPb => 6
0.26/0.26	c SATISFIABLE
0.26/0.27	c OPTIMIZING...
0.26/0.27	c Got one! Elapsed wall clock time (in seconds):0.051
0.26/0.27	o 9663726604
0.26/0.29	c Got one! Elapsed wall clock time (in seconds):0.072
0.26/0.29	o 9663726592
0.26/0.30	c starts		: 2
0.26/0.30	c conflicts		: 1
0.26/0.30	c decisions		: 13
0.26/0.30	c propagations		: 180
0.26/0.30	c inspects		: 306
0.26/0.30	c learnt literals	: 0
0.26/0.30	c learnt binary clauses	: 0
0.26/0.30	c learnt ternary clauses	: 0
0.26/0.30	c learnt clauses	: 1
0.26/0.30	c ignored clauses	: 0
0.26/0.30	c root simplifications	: 0
0.26/0.30	c removed literals (reason simplification)	: 0
0.26/0.30	c reason swapping (by a shorter reason)	: 0
0.26/0.30	c Calls to reduceDB	: 0
0.26/0.30	c number of reductions to clauses (during analyze)	: 0
0.26/0.30	c number of learned constraints concerned by reduction	: 0
0.26/0.30	c number of learning phase by resolution	: 0
0.26/0.30	c number of learning phase by cutting planes	: 0
0.26/0.30	c speed (assignments/second)	: 13846.153846153848
0.26/0.30	c non guided choices	0
0.26/0.30	c learnt constraints type 
0.26/0.30	c constraints type 
0.26/0.30	c org.sat4j.pb.constraints.pb.MaxWatchPb => 6
0.26/0.30	s OPTIMUM FOUND
0.26/0.30	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 
0.26/0.30	c objective function=9663726592
0.26/0.30	c Total wall clock time (in seconds): 0.087

Verifier Data 

OK	9663726592

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2661245-1276542761/watcher-2661245-1276542761 -o /tmp/evaluation-result-2661245-1276542761/solver-2661245-1276542761 -C 1800 -W 2000 -M 1800 java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar CuttingPlanes HOME/instance-2661245-1276542761.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: 1.86 1.90 1.61 3/106 29054
/proc/meminfo: memFree=1840000/2059040 swapFree=4140300/4192956
[pid=29054] ppid=29052 vsize=1752 CPUtime=0
/proc/29054/stat : 29054 (java) R 29052 29054 28399 0 -1 4194304 333 0 0 0 0 0 0 0 25 0 1 0 27927932 1794048 79 1992294400 134512640 134550932 4288457520 18446744073709551615 3205552 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29054/statm: 438 80 64 10 0 30 0

[startup+0.069979 s]
/proc/loadavg: 1.86 1.90 1.61 3/106 29054
/proc/meminfo: memFree=1840000/2059040 swapFree=4140300/4192956
[pid=29054] ppid=29052 vsize=1521796 CPUtime=0.05
/proc/29054/stat : 29054 (java) S 29052 29054 28399 0 -1 4202496 3709 0 1 0 3 2 0 0 25 0 7 0 27927932 1558319104 3151 1992294400 134512640 134550932 4288457520 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 0 0 0 0
/proc/29054/statm: 380449 3151 1034 10 0 377759 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1521796

[startup+0.100978 s]
/proc/loadavg: 1.86 1.90 1.61 3/106 29054
/proc/meminfo: memFree=1840000/2059040 swapFree=4140300/4192956
[pid=29054] ppid=29052 vsize=1524184 CPUtime=0.09
/proc/29054/stat : 29054 (java) S 29052 29054 28399 0 -1 4202496 3963 0 1 0 6 3 0 0 25 0 12 0 27927932 1560764416 3403 1992294400 134512640 134550932 4288457520 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0 0
/proc/29054/statm: 381046 3404 1076 10 0 378348 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1524184

[startup+0.306838 s]
/proc/loadavg: 1.86 1.90 1.61 3/106 29054
/proc/meminfo: memFree=1840000/2059040 swapFree=4140300/4192956
[pid=29054] ppid=29052 vsize=1527752 CPUtime=0.38
/proc/29054/stat : 29054 (java) S 29052 29054 28399 0 -1 4202496 5558 0 1 0 34 4 0 0 25 0 14 0 27927932 1564418048 4996 1992294400 134512640 134550932 4288457520 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0 0
/proc/29054/statm: 381938 4996 1365 10 0 379240 0
Current children cumulated CPU time (s) 0.38
Current children cumulated vsize (KiB) 1527752

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

Child status: 30
Real time (s): 0.323821
CPU time (s): 0.394939
CPU user time (s): 0.346947
CPU system time (s): 0.047992
CPU usage (%): 121.962
Max. virtual memory (cumulated for all children) (KiB): 1527752

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.346947
system time used= 0.047992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5585
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= 89
involuntary context switches= 81

runsolver used 0.003999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node027 at 2010-06-14 21:12:41
IDJOB=2661245
IDBENCH=2375
IDSOLVER=1165
FILE ID=node027/2661245-1276542761
PBS_JOBID= 11173463
Free space on /tmp= 62480 MiB

SOLVER NAME= SAT4J PB CuttingPlanes 2.2.0 2010-05-26
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/www.csit.fsu.edu/~burkardt/datasets/mps/normalized-mps-v2-20-10-testprob.opb
COMMAND LINE= java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar CuttingPlanes BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2661245-1276542761/watcher-2661245-1276542761 -o /tmp/evaluation-result-2661245-1276542761/solver-2661245-1276542761 -C 1800 -W 2000 -M 1800  java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar CuttingPlanes HOME/instance-2661245-1276542761.opb

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

MD5SUM BENCH= 24c749e45d4bbd6a8ec98f3e49fb7aad
RANDOM SEED=1837150269

node027.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		: 2800.261
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	: 5600.52
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		: 2800.261
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:       1840380 kB
Buffers:         30164 kB
Cached:         107740 kB
SwapCached:       5712 kB
Active:          78464 kB
Inactive:        72344 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1840380 kB
SwapTotal:     4192956 kB
SwapFree:      4140300 kB
Dirty:             360 kB
Writeback:          24 kB
AnonPages:       11380 kB
Mapped:          13064 kB
Slab:            45900 kB
PageTables:       4084 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181208 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264952 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62480 MiB
End job on node027 at 2010-06-14 21:12:41