Trace number 2659635

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 Resolution 2.2.0 2010-05-26OPT3089 0.98485 0.62365

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/
MIPLIB/miplib/normalized-mps-v2-20-10-p0033.opb
MD5SUMbdb886a987b9ca760f19a56a745e3c06
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3089
Best CPU time to get the best result obtained on this benchmark0.038993
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3089
Optimality of the best value was proved YES
Number of variables33
Total number of constraints15
Number of constraints which are clauses1
Number of constraints which are cardinality constraints (but not clauses)3
Number of constraints which are nor clauses,nor cardinality constraints11
Minimum length of a constraint2
Maximum length of a constraint19
Number of terms in the objective function 33
Biggest coefficient in the objective function 517
Number of bits for the biggest coefficient in the objective function 10
Sum of the numbers in the objective function 7276
Number of bits of the sum of numbers in the objective function 13
Biggest number in a constraint 1656
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 7276
Number of bits of the biggest sum of numbers13
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 

0.08/0.13	c SAT4J: a SATisfiability library for Java (c) 2004-2010 Daniel Le Berre
0.08/0.13	c This is free software under the dual EPL/GNU LGPL licenses.
0.08/0.13	c See www.sat4j.org for details.
0.08/0.14	c version 2.2.0.v20100526
0.08/0.14	c java.runtime.name	Java(TM) SE Runtime Environment
0.08/0.14	c java.vm.name		Java HotSpot(TM) Server VM
0.08/0.14	c java.vm.version	11.2-b01
0.08/0.14	c java.vm.vendor	Sun Microsystems Inc.
0.08/0.14	c sun.arch.data.model	32
0.08/0.14	c java.version		1.6.0_12
0.08/0.14	c os.name		Linux
0.08/0.14	c os.version		2.6.18-164.el5
0.08/0.14	c os.arch		i386
0.08/0.14	c Free memory 		1393557488
0.08/0.14	c Max memory 		1395916800
0.08/0.14	c Total memory 		1395916800
0.08/0.14	c Number of processors 	2
0.24/0.20	c Pseudo Boolean Optimization
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.CompetResolutionPBMixedWLClauseCardConstrDataStructure@161d36b
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 lightweight component caching from RSAT taking into account the objective function
0.24/0.20	c Expensive reason simplification
0.24/0.20	c Armin Biere (Picosat) restarts strategy
0.24/0.20	c Glucose 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-2659635-1276355093.opb
0.24/0.20	c reading problem ... 
0.24/0.23	c ... done. Wall clock time 0.034s.
0.24/0.23	c #vars     33
0.24/0.23	c #constraints  15
0.24/0.23	c constraints type 
0.24/0.23	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 3
0.24/0.23	c org.sat4j.minisat.constraints.card.MinWatchCard => 3
0.24/0.23	c org.sat4j.minisat.constraints.cnf.OriginalBinaryClause => 1
0.24/0.23	c org.sat4j.pb.constraints.pb.MaxWatchPb => 8
0.24/0.25	c SATISFIABLE
0.24/0.25	c OPTIMIZING...
0.24/0.25	c Got one! Elapsed wall clock time (in seconds):0.054
0.24/0.25	o 3095
0.24/0.31	c Got one! Elapsed wall clock time (in seconds):0.112
0.24/0.31	o 3089
0.97/0.60	c starts		: 7
0.97/0.60	c conflicts		: 695
0.97/0.60	c decisions		: 789
0.97/0.60	c propagations		: 6435
0.97/0.60	c inspects		: 57052
0.97/0.60	c learnt literals	: 10
0.97/0.60	c learnt binary clauses	: 40
0.97/0.60	c learnt ternary clauses	: 114
0.97/0.60	c learnt clauses	: 684
0.97/0.60	c ignored clauses	: 0
0.97/0.60	c root simplifications	: 0
0.97/0.60	c removed literals (reason simplification)	: 2621
0.97/0.60	c reason swapping (by a shorter reason)	: 0
0.97/0.60	c Calls to reduceDB	: 0
0.97/0.60	c number of reductions to clauses (during analyze)	: 0
0.97/0.60	c number of learned constraints concerned by reduction	: 0
0.97/0.60	c number of learning phase by resolution	: 0
0.97/0.60	c number of learning phase by cutting planes	: 0
0.97/0.60	c speed (assignments/second)	: 22113.40206185567
0.97/0.60	c non guided choices	0
0.97/0.60	c learnt constraints type 
0.97/0.60	c constraints type 
0.97/0.60	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 3
0.97/0.60	c org.sat4j.minisat.constraints.card.MinWatchCard => 3
0.97/0.60	c org.sat4j.minisat.constraints.cnf.OriginalBinaryClause => 1
0.97/0.60	c org.sat4j.pb.constraints.pb.MaxWatchPb => 8
0.97/0.60	s OPTIMUM FOUND
0.97/0.60	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 
0.97/0.60	c objective function=3089
0.97/0.60	c Total wall clock time (in seconds): 0.405

Verifier Data 

OK	3089

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2659635-1276355093/watcher-2659635-1276355093 -o /tmp/evaluation-result-2659635-1276355093/solver-2659635-1276355093 -C 1800 -W 2000 -M 1800 java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar HOME/instance-2659635-1276355093.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: 1.13 1.10 1.06 3/106 12863
/proc/meminfo: memFree=1844004/2059040 swapFree=4158992/4192956
[pid=12863] ppid=12861 vsize=428 CPUtime=0
/proc/12863/stat : 12863 (java) R 12861 12863 11757 0 -1 4194304 296 0 0 0 0 0 0 0 23 0 1 0 11112992 438272 42 1992294400 134512640 134550932 4292727696 18446744073709551615 2679380 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/12863/statm: 107 42 33 10 0 25 0

[startup+0.101015 s]
/proc/loadavg: 1.13 1.10 1.06 3/106 12863
/proc/meminfo: memFree=1844004/2059040 swapFree=4158992/4192956
[pid=12863] ppid=12861 vsize=1524184 CPUtime=0.08
/proc/12863/stat : 12863 (java) S 12861 12863 11757 0 -1 4202496 3999 0 1 0 7 1 0 0 23 0 12 0 11112992 1560764416 3438 1992294400 134512640 134550932 4292727696 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0 0
/proc/12863/statm: 381046 3438 1078 10 0 378348 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1524184

[startup+0.201028 s]
/proc/loadavg: 1.13 1.10 1.06 3/106 12863
/proc/meminfo: memFree=1844004/2059040 swapFree=4158992/4192956
[pid=12863] ppid=12861 vsize=1526244 CPUtime=0.24
/proc/12863/stat : 12863 (java) S 12861 12863 11757 0 -1 4202496 5090 0 1 0 22 2 0 0 23 0 12 0 11112992 1562873856 4527 1992294400 134512640 134550932 4292727696 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0 0
/proc/12863/statm: 381561 4527 1346 10 0 378863 0
Current children cumulated CPU time (s) 0.24
Current children cumulated vsize (KiB) 1526244

[startup+0.368043 s]
/proc/loadavg: 1.13 1.10 1.06 3/106 12863
/proc/meminfo: memFree=1844004/2059040 swapFree=4158992/4192956
[pid=12863] ppid=12861 vsize=1528424 CPUtime=0.52
/proc/12863/stat : 12863 (java) S 12861 12863 11757 0 -1 4202496 5887 0 1 0 49 3 0 0 23 0 13 0 11112992 1565106176 5324 1992294400 134512640 134550932 4292727696 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0 0
/proc/12863/statm: 382106 5324 1390 10 0 379408 0
Current children cumulated CPU time (s) 0.52
Current children cumulated vsize (KiB) 1528424

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

[startup+0.484057 s]
/proc/loadavg: 1.13 1.10 1.06 3/106 12863
/proc/meminfo: memFree=1844004/2059040 swapFree=4158992/4192956
[pid=12863] ppid=12861 vsize=1528704 CPUtime=0.75
/proc/12863/stat : 12863 (java) S 12861 12863 11757 0 -1 4202496 6231 0 1 0 72 3 0 0 23 0 13 0 11112992 1565392896 5545 1992294400 134512640 134550932 4292727696 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0 0
/proc/12863/statm: 382176 5545 1400 10 0 379478 0
Current children cumulated CPU time (s) 0.75
Current children cumulated vsize (KiB) 1528704

[startup+0.606897 s]
/proc/loadavg: 1.13 1.10 1.06 3/106 12863
/proc/meminfo: memFree=1844004/2059040 swapFree=4158992/4192956
[pid=12863] ppid=12861 vsize=1529164 CPUtime=0.97
/proc/12863/stat : 12863 (java) S 12861 12863 11757 0 -1 4202496 6570 0 1 0 94 3 0 0 23 0 14 0 11112992 1565863936 5846 1992294400 134512640 134550932 4292727696 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0 0
/proc/12863/statm: 382291 5846 1413 10 0 379593 0
Current children cumulated CPU time (s) 0.97
Current children cumulated vsize (KiB) 1529164

Child status: 30
Real time (s): 0.62365
CPU time (s): 0.98485
CPU user time (s): 0.945856
CPU system time (s): 0.038994
CPU usage (%): 157.917
Max. virtual memory (cumulated for all children) (KiB): 1529164

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.945856
system time used= 0.038994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6587
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= 96
involuntary context switches= 86

runsolver used 0.005999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node006 at 2010-06-12 17:04:53
IDJOB=2659635
IDBENCH=1863
IDSOLVER=1164
FILE ID=node006/2659635-1276355093
PBS_JOBID= 11173195
Free space on /tmp= 62472 MiB

SOLVER NAME= SAT4J PB Resolution 2.2.0 2010-05-26
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-p0033.opb
COMMAND LINE= java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2659635-1276355093/watcher-2659635-1276355093 -o /tmp/evaluation-result-2659635-1276355093/solver-2659635-1276355093 -C 1800 -W 2000 -M 1800  java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar HOME/instance-2659635-1276355093.opb

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

MD5SUM BENCH= bdb886a987b9ca760f19a56a745e3c06
RANDOM SEED=575804796

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:       1844400 kB
Buffers:         20996 kB
Cached:         100552 kB
SwapCached:       1976 kB
Active:          90592 kB
Inactive:        58944 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1844400 kB
SwapTotal:     4192956 kB
SwapFree:      4158992 kB
Dirty:             960 kB
Writeback:           0 kB
AnonPages:       25968 kB
Mapped:          13968 kB
Slab:            43320 kB
PageTables:       4020 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181708 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= 62472 MiB
End job on node006 at 2010-06-12 17:04:54