Trace number 1857181

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 Resolution 2.1.1OPT2 0.872866 0.615676

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=5-P0=31-P1=23-P2=2-P3=17-P4=17-B.opb
MD5SUMab5c167d631c36380726b7ea7a7cf75a
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 benchmark0.010997
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 variables60
Total number of constraints9
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 constraints9
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)100
Sum of products size (including duplicates)200
Number of different products100
Sum of products size200

Quality of the solution as a function of time


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

Solver Data 

0.09/0.13	c SAT4J: a SATisfiability library for Java (c) 2004-2008 Daniel Le Berre
0.09/0.13	c This is free software under the dual EPL/GNU LGPL licenses.
0.09/0.13	c See www.sat4j.org for details.
0.09/0.14	c version 2.1.1.v20090612
0.09/0.14	c sun.arch.data.model	32
0.09/0.14	c java.version	1.6.0_12
0.09/0.14	c os.name	Linux
0.09/0.14	c os.version	2.6.9-22.EL.rootsmp
0.09/0.14	c os.arch	i386
0.09/0.14	c Free memory 1342000320
0.09/0.14	c Max memory 1344274432
0.09/0.14	c Total memory 1344274432
0.09/0.14	c Number of processors 2
0.22/0.21	c Pseudo Boolean Optimization
0.22/0.21	c --- Begin Solver configuration ---
0.22/0.21	c Stops conflict analysis at the first Unique Implication Point
0.22/0.21	c org.sat4j.pb.constraints.CompetResolutionPBMixedHTClauseCardConstrDataStructure@64dc11
0.22/0.21	c Learn all clauses as in MiniSAT
0.22/0.21	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.22/0.21	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause taking into account the objective function
0.22/0.21	c Expensive reason simplification
0.22/0.21	c MiniSAT restarts strategy
0.22/0.21	c Memory based learned constraints deletion strategy
0.22/0.21	c timeout=2147483s
0.22/0.21	c DB Simplification allowed=false
0.22/0.21	c --- End Solver configuration ---
0.22/0.21	c solving HOME/instance-1857181-1244937947.opb
0.22/0.21	c reading problem ... 
0.22/0.27	c ... done. Wall clock time 0.059s.
0.22/0.27	c #vars     160
0.22/0.27	c #constraints  213
0.22/0.27	c constraints type 
0.22/0.27	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 100
0.22/0.27	c org.sat4j.pb.constraints.pb.MaxWatchPb => 113
0.55/0.49	c SATISFIABLE
0.55/0.49	c OPTIMIZING...
0.55/0.49	c Got one! Elapsed wall clock time (in seconds):0.278
0.55/0.49	o 13
0.74/0.57	c Got one! Elapsed wall clock time (in seconds):0.356
0.74/0.57	o 11
0.74/0.57	c Got one! Elapsed wall clock time (in seconds):0.362
0.74/0.57	o 2
0.74/0.57	c starts		: 5
0.74/0.57	c conflicts		: 337
0.74/0.57	c decisions		: 573
0.74/0.57	c propagations		: 4692
0.74/0.57	c inspects		: 17817
0.74/0.57	c learnt literals	: 0
0.74/0.57	c learnt binary clauses	: 0
0.74/0.57	c learnt ternary clauses	: 0
0.74/0.57	c learnt clauses	: 337
0.74/0.57	c ignored clauses	: 0
0.74/0.57	c root simplifications	: 0
0.74/0.57	c removed literals (reason simplification)	: 2634
0.74/0.57	c reason swapping (by a shorter reason)	: 0
0.74/0.57	c Calls to reduceDB	: 0
0.74/0.57	c speed (assignments/second)	: 1564000.0
0.74/0.57	c non guided choices	189
0.74/0.57	c learnt constraints type 
0.74/0.57	c constraints type 
0.74/0.57	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 100
0.74/0.57	c org.sat4j.pb.constraints.pb.MaxWatchPb => 113
0.74/0.57	s OPTIMUM FOUND
0.74/0.58	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 -x81 x82 -x83 -x84 -x85 -x86 x87 -x88 -x89 -x90 -x91 x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99 -x100 -x101 -x102 -x103 -x104 -x105 -x106 -x107 -x108 -x109 -x110 -x111 x112 x113 -x114 -x115 -x116 x117 x118 -x119 -x120 -x121 -x122 -x123 -x124 -x125 -x126 -x127 -x128 -x129 -x130 -x131 -x132 -x133 -x134 -x135 -x136 x137 -x138 -x139 x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x150 -x151 -x152 -x153 -x154 -x155 -x156 x157 -x158 -x159 x160 
0.74/0.58	c objective function=2
0.74/0.58	c Total wall clock time (in seconds): 0.367

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-1857181-1244937947/watcher-1857181-1244937947 -o /tmp/evaluation-result-1857181-1244937947/solver-1857181-1244937947 -C 1800 -W 2000 -M 1800 java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar HOME/instance-1857181-1244937947.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: 1.45 1.22 1.07 3/64 13254
/proc/meminfo: memFree=1321440/2055920 swapFree=4182536/4192956
[pid=13254] ppid=13252 vsize=152 CPUtime=0
/proc/13254/stat : 13254 (java) R 13252 13254 13033 0 -1 0 204 0 0 0 0 0 0 0 18 0 1 0 161391125 155648 26 1992294400 134512640 134550932 4294956016 18446744073709551615 10519332 0 0 4096 0 0 0 0 17 1 0 0
/proc/13254/statm: 38 26 19 9 0 4 0

[startup+0.0667309 s]
/proc/loadavg: 1.45 1.22 1.07 3/64 13254
/proc/meminfo: memFree=1321440/2055920 swapFree=4182536/4192956
[pid=13254] ppid=13252 vsize=1470220 CPUtime=0.06
/proc/13254/stat : 13254 (java) S 13252 13254 13033 0 -1 0 3366 0 1 0 4 2 0 0 18 0 7 0 161391125 1505505280 3111 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 1 0 0
/proc/13254/statm: 367555 3111 1031 9 0 364906 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1470220

[startup+0.101735 s]
/proc/loadavg: 1.45 1.22 1.07 3/64 13254
/proc/meminfo: memFree=1321440/2055920 swapFree=4182536/4192956
[pid=13254] ppid=13252 vsize=1472584 CPUtime=0.09
/proc/13254/stat : 13254 (java) S 13252 13254 13033 0 -1 0 3660 0 1 0 7 2 0 0 18 0 12 0 161391125 1507926016 3403 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/13254/statm: 368146 3403 1069 9 0 365494 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1472584

[startup+0.30177 s]
/proc/loadavg: 1.45 1.22 1.07 3/64 13254
/proc/meminfo: memFree=1321440/2055920 swapFree=4182536/4192956
[pid=13254] ppid=13252 vsize=1475332 CPUtime=0.35
/proc/13254/stat : 13254 (java) S 13252 13254 13033 0 -1 0 5056 0 1 0 32 3 0 0 18 0 13 0 161391125 1510739968 4793 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/13254/statm: 368833 4793 1347 9 0 366176 0
Current children cumulated CPU time (s) 0.35
Current children cumulated vsize (KiB) 1475332

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

[startup+0.501806 s]
/proc/loadavg: 1.45 1.22 1.07 3/64 13254
/proc/meminfo: memFree=1321440/2055920 swapFree=4182536/4192956
[pid=13254] ppid=13252 vsize=1479868 CPUtime=0.74
/proc/13254/stat : 13254 (java) S 13252 13254 13033 0 -1 0 6779 0 1 0 70 4 0 0 18 0 13 0 161391125 1515384832 6035 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/13254/statm: 369967 6035 1402 9 0 367310 0
Current children cumulated CPU time (s) 0.74
Current children cumulated vsize (KiB) 1479868

[startup+0.601823 s]
/proc/loadavg: 1.45 1.22 1.07 3/64 13254
/proc/meminfo: memFree=1321440/2055920 swapFree=4182536/4192956
[pid=13254] ppid=13252 vsize=1480192 CPUtime=0.86
/proc/13254/stat : 13254 (java) S 13252 13254 13033 0 -1 0 6987 0 1 0 82 4 0 0 18 0 13 0 161391125 1515716608 6243 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/13254/statm: 370048 6243 1412 9 0 367391 0
Current children cumulated CPU time (s) 0.86
Current children cumulated vsize (KiB) 1480192

Child status: 30
Real time (s): 0.615676
CPU time (s): 0.872866
CPU user time (s): 0.824874
CPU system time (s): 0.047992
CPU usage (%): 141.774
Max. virtual memory (cumulated for all children) (KiB): 1480192

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.824874
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= 6991
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= 212
involuntary context switches= 174

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node47 at 2009-06-14 02:05:47
IDJOB=1857181
IDBENCH=47888
IDSOLVER=682
FILE ID=node47/1857181-1244937947
PBS_JOBID= 9354687
Free space on /tmp= 66092 MiB

SOLVER NAME= SAT4J Pseudo Resolution 2.1.1
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=5-P0=31-P1=23-P2=2-P3=17-P4=17-B.opb
COMMAND LINE= java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1857181-1244937947/watcher-1857181-1244937947 -o /tmp/evaluation-result-1857181-1244937947/solver-1857181-1244937947 -C 1800 -W 2000 -M 1800  java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar HOME/instance-1857181-1244937947.opb

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

MD5SUM BENCH= ab5c167d631c36380726b7ea7a7cf75a
RANDOM SEED=1400546569

node47.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		: 3000.261
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		: 3000.261
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:       1321856 kB
Buffers:         61360 kB
Cached:         609516 kB
SwapCached:       4160 kB
Active:          44348 kB
Inactive:       634380 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1321856 kB
SwapTotal:     4192956 kB
SwapFree:      4182536 kB
Dirty:             292 kB
Writeback:           0 kB
Mapped:          13632 kB
Slab:            41280 kB
Committed_AS:   138596 kB
PageTables:       1448 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= 66092 MiB
End job on node47 at 2009-06-14 02:05:48