Trace number 1855710

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 2.1.1OPT94 1.14982 0.800932

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB05/
manquinho/primes-dimacs-cnf/normalized-jnh12.opb
MD5SUMfd12bfc1188405a8c0d2850776ec5d6d
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark94
Best CPU time to get the best result obtained on this benchmark0.009997
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 94
Optimality of the best value was proved YES
Number of variables200
Total number of constraints950
Number of constraints which are clauses950
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint11
Number of terms in the objective function 200
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 200
Number of bits of the sum of numbers in the objective function 8
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 200
Number of bits of the biggest sum of numbers8
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 

0.09/0.13	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
0.23/0.21	c Pseudo Boolean Optimization
0.23/0.21	c Cutting planes based inference (org.sat4j.pb.core.PBSolverCP)
0.23/0.21	c --- Begin Solver configuration ---
0.23/0.21	c Stops conflict analysis at the first Unique Implication Point
0.23/0.21	c org.sat4j.pb.constraints.PBMaxClauseCardConstrDataStructure@ecd7e
0.23/0.21	c Learn all clauses as in MiniSAT
0.23/0.21	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.23/0.21	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause taking into account the objective function
0.23/0.21	c No reason simplification
0.23/0.21	c MiniSAT restarts strategy
0.23/0.21	c Memory based learned constraints deletion strategy
0.23/0.21	c timeout=2147483s
0.23/0.21	c DB Simplification allowed=false
0.23/0.21	c --- End Solver configuration ---
0.23/0.21	c solving HOME/instance-1855710-1244887090.opb
0.23/0.21	c reading problem ... 
0.52/0.49	c ... done. Wall clock time 0.278s.
0.52/0.49	c #vars     200
0.52/0.49	c #constraints  950
0.52/0.49	c constraints type 
0.52/0.49	c org.sat4j.pb.constraints.pb.OriginalBinaryClausePB => 176
0.52/0.49	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 774
0.69/0.54	c SATISFIABLE
0.69/0.55	c OPTIMIZING...
0.69/0.55	c Got one! Elapsed wall clock time (in seconds):0.338
0.69/0.55	o 98
0.69/0.58	c Got one! Elapsed wall clock time (in seconds):0.374
0.69/0.58	o 97
0.84/0.62	c Got one! Elapsed wall clock time (in seconds):0.415
0.84/0.62	o 94
1.01/0.73	c starts		: 4
1.01/0.73	c conflicts		: 15
1.01/0.73	c decisions		: 43
1.01/0.73	c propagations		: 1575
1.01/0.73	c inspects		: 5360
1.01/0.73	c learnt literals	: 2
1.01/0.73	c learnt binary clauses	: 0
1.01/0.73	c learnt ternary clauses	: 0
1.01/0.73	c learnt clauses	: 12
1.01/0.73	c ignored clauses	: 0
1.01/0.73	c root simplifications	: 0
1.01/0.73	c removed literals (reason simplification)	: 0
1.01/0.73	c reason swapping (by a shorter reason)	: 0
1.01/0.73	c Calls to reduceDB	: 0
1.01/0.73	c speed (assignments/second)	: 14449.54128440367
1.01/0.73	c non guided choices	0
1.01/0.73	c learnt constraints type 
1.01/0.73	c constraints type 
1.01/0.73	c org.sat4j.pb.constraints.pb.OriginalBinaryClausePB => 176
1.01/0.73	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 774
1.01/0.73	c org.sat4j.pb.constraints.pb.MinWatchCardPB => 0
1.01/0.73	s OPTIMUM FOUND
1.01/0.74	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 x161 -x162 x163 -x164 -x165 x166 x167 -x168 x169 -x170 -x171 x172 x173 -x174 -x175 x176 -x177 -x178 x179 -x180 x181 -x182 -x183 -x184 x185 -x186 -x187 x188 -x189 x190 x191 -x192 x193 -x194 x195 -x196 -x197 x198 -x199 -x200 
1.01/0.74	c objective function=94
1.01/0.74	c Total wall clock time (in seconds): 0.528

Verifier Data 

OK	94

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1855710-1244887090/watcher-1855710-1244887090 -o /tmp/evaluation-result-1855710-1244887090/solver-1855710-1244887090 -C 1800 -W 2000 -M 1800 java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar CuttingPlanes HOME/instance-1855710-1244887090.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: 1.00 1.00 1.00 3/64 14880
/proc/meminfo: memFree=1322328/2055920 swapFree=4192044/4192956
[pid=14880] ppid=14878 vsize=152 CPUtime=0
/proc/14880/stat : 14880 (java) R 14878 14880 14396 0 -1 0 204 0 0 0 0 0 0 0 21 0 1 0 156306137 155648 26 1992294400 134512640 134550932 4294956000 18446744073709551615 8605995 0 0 4096 0 0 0 0 17 0 0 0
/proc/14880/statm: 38 26 19 9 0 4 0

[startup+0.0103599 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 14880
/proc/meminfo: memFree=1322328/2055920 swapFree=4192044/4192956
[pid=14880] ppid=14878 vsize=13208 CPUtime=0
/proc/14880/stat : 14880 (java) S 14878 14880 14396 0 -1 0 749 0 0 0 0 0 0 0 21 0 2 0 156306137 13524992 544 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 0 0 0
/proc/14880/statm: 3302 544 235 9 0 1186 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 13208

[startup+0.101369 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 14880
/proc/meminfo: memFree=1322328/2055920 swapFree=4192044/4192956
[pid=14880] ppid=14878 vsize=1472584 CPUtime=0.09
/proc/14880/stat : 14880 (java) S 14878 14880 14396 0 -1 0 3655 0 1 0 7 2 0 0 21 0 12 0 156306137 1507926016 3398 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/14880/statm: 368146 3398 1069 9 0 365494 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1472584

[startup+0.302396 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 14880
/proc/meminfo: memFree=1322328/2055920 swapFree=4192044/4192956
[pid=14880] ppid=14878 vsize=1474784 CPUtime=0.37
/proc/14880/stat : 14880 (java) S 14878 14880 14396 0 -1 0 5010 0 1 0 33 4 0 0 21 0 12 0 156306137 1510178816 4748 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/14880/statm: 368696 4748 1356 9 0 366039 0
Current children cumulated CPU time (s) 0.37
Current children cumulated vsize (KiB) 1474784

[startup+0.702443 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 14880
/proc/meminfo: memFree=1322328/2055920 swapFree=4192044/4192956
[pid=14880] ppid=14878 vsize=1476596 CPUtime=1.01
/proc/14880/stat : 14880 (java) S 14878 14880 14396 0 -1 0 6844 0 1 0 97 4 0 0 21 0 13 0 156306137 1512034304 6060 1992294400 134512640 134550932 4294956000 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/14880/statm: 369149 6060 1398 9 0 366492 0
Current children cumulated CPU time (s) 1.01
Current children cumulated vsize (KiB) 1476596

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

Child status: 30
Real time (s): 0.800932
CPU time (s): 1.14982
CPU user time (s): 1.09483
CPU system time (s): 0.054991
CPU usage (%): 143.561
Max. virtual memory (cumulated for all children) (KiB): 1476880

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.09483
system time used= 0.054991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7552
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= 193
involuntary context switches= 155

runsolver used 0.004999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node38 at 2009-06-13 11:58:10
IDJOB=1855710
IDBENCH=2136
IDSOLVER=681
FILE ID=node38/1855710-1244887090
PBS_JOBID= 9354416
Free space on /tmp= 66280 MiB

SOLVER NAME= SAT4J Pseudo CP 2.1.1
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/primes-dimacs-cnf/normalized-jnh12.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-1855710-1244887090/watcher-1855710-1244887090 -o /tmp/evaluation-result-1855710-1244887090/solver-1855710-1244887090 -C 1800 -W 2000 -M 1800  java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar CuttingPlanes HOME/instance-1855710-1244887090.opb

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

MD5SUM BENCH= fd12bfc1188405a8c0d2850776ec5d6d
RANDOM SEED=1188327101

node38.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		: 3000.232
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		: 3000.232
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:       1322744 kB
Buffers:         75528 kB
Cached:         556764 kB
SwapCached:        448 kB
Active:          45656 kB
Inactive:       600100 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1322744 kB
SwapTotal:     4192956 kB
SwapFree:      4192044 kB
Dirty:             324 kB
Writeback:           0 kB
Mapped:          22512 kB
Slab:            73324 kB
Committed_AS:   115992 kB
PageTables:       1456 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= 66280 MiB
End job on node38 at 2009-06-13 11:58:10