Trace number 2659622

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 2010-05-26OPT10447498 1.21281 0.747435

General information on the benchmark

Namenormalized-PB06/OPT-MEDINT/mps-v2-20-10/MIPLIB/
miplib/normalized-mps-v2-20-10-p0291.opb
MD5SUM5dbbb39821171ddf7cf17b36f56beeda
Bench CategoryOPT-MEDINT (optimisation, medium integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark10447498
Best CPU time to get the best result obtained on this benchmark0.38594
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 10447498
Optimality of the best value was proved YES
Number of variables290
Total number of constraints205
Number of constraints which are clauses189
Number of constraints which are cardinality constraints (but not clauses)2
Number of constraints which are nor clauses,nor cardinality constraints14
Minimum length of a constraint2
Maximum length of a constraint53
Number of terms in the objective function 288
Biggest coefficient in the objective function 80000000
Number of bits for the biggest coefficient in the objective function 27
Sum of the numbers in the objective function 686402651
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 80000000
Number of bits of the biggest number in a constraint 27
Biggest sum of numbers in a constraint 686402651
Number of bits of the biggest sum of numbers30
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 

0.08/0.14	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
0.08/0.20	c Pseudo Boolean Optimization
0.08/0.20	c --- Begin Solver configuration ---
0.08/0.20	c Stops conflict analysis at the first Unique Implication Point
0.08/0.20	c org.sat4j.pb.constraints.CompetResolutionPBMixedWLClauseCardConstrDataStructure@64dc11
0.08/0.20	c Learn all clauses as in MiniSAT
0.08/0.20	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.08/0.20	c VSIDS like heuristics from MiniSAT using a heap lightweight component caching from RSAT taking into account the objective function
0.08/0.20	c Expensive reason simplification
0.08/0.20	c Armin Biere (Picosat) restarts strategy
0.08/0.20	c Glucose learned constraints deletion strategy
0.08/0.20	c timeout=2147483s
0.08/0.20	c DB Simplification allowed=false
0.08/0.20	c --- End Solver configuration ---
0.08/0.20	c solving HOME/instance-2659622-1276347062.opb
0.08/0.20	c reading problem ... 
0.36/0.32	c ... done. Wall clock time 0.113s.
0.36/0.32	c #vars     290
0.36/0.32	c #constraints  205
0.36/0.32	c constraints type 
0.36/0.32	c org.sat4j.minisat.constraints.card.MinWatchCard => 2
0.36/0.32	c org.sat4j.minisat.constraints.cnf.OriginalBinaryClause => 189
0.36/0.32	c org.sat4j.pb.constraints.pb.MaxWatchPb => 14
0.36/0.36	c SATISFIABLE
0.36/0.36	c OPTIMIZING...
0.36/0.36	c Got one! Elapsed wall clock time (in seconds):0.154
0.36/0.36	o 23150195
0.54/0.40	c Got one! Elapsed wall clock time (in seconds):0.194
0.54/0.40	o 11140720
0.54/0.44	c Got one! Elapsed wall clock time (in seconds):0.233
0.54/0.44	o 11018645
0.74/0.50	c Got one! Elapsed wall clock time (in seconds):0.294
0.74/0.50	o 10866013
0.74/0.53	c Got one! Elapsed wall clock time (in seconds):0.326
0.74/0.53	o 10662378
0.74/0.59	c Got one! Elapsed wall clock time (in seconds):0.385
0.74/0.59	o 10621523
0.93/0.64	c Got one! Elapsed wall clock time (in seconds):0.432
0.93/0.64	o 10447498
1.13/0.70	c starts		: 8
1.13/0.70	c conflicts		: 126
1.13/0.70	c decisions		: 1015
1.13/0.70	c propagations		: 3990
1.13/0.70	c inspects		: 7508
1.13/0.70	c learnt literals	: 1
1.13/0.70	c learnt binary clauses	: 1
1.13/0.70	c learnt ternary clauses	: 1
1.13/0.70	c learnt clauses	: 124
1.13/0.70	c ignored clauses	: 0
1.13/0.70	c root simplifications	: 0
1.13/0.70	c removed literals (reason simplification)	: 820
1.13/0.70	c reason swapping (by a shorter reason)	: 0
1.13/0.70	c Calls to reduceDB	: 0
1.13/0.70	c number of reductions to clauses (during analyze)	: 0
1.13/0.70	c number of learned constraints concerned by reduction	: 0
1.13/0.70	c number of learning phase by resolution	: 0
1.13/0.70	c number of learning phase by cutting planes	: 0
1.13/0.70	c speed (assignments/second)	: 68793.10344827586
1.13/0.70	c non guided choices	0
1.13/0.70	c learnt constraints type 
1.13/0.70	c constraints type 
1.13/0.70	c org.sat4j.minisat.constraints.card.MinWatchCard => 2
1.13/0.70	c org.sat4j.minisat.constraints.cnf.OriginalBinaryClause => 189
1.13/0.70	c org.sat4j.pb.constraints.pb.MaxWatchPb => 14
1.13/0.70	s OPTIMUM FOUND
1.13/0.70	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 -x201 -x202 -x203 -x204 -x205 -x206 -x207 -x208 -x209 -x210 -x211 -x212 -x213 -x214 -x215 -x216 -x217 -x218 -x219 -x220 -x221 -x222 -x223 -x224 -x225 -x226 -x227 -x228 -x229 -x230 -x231 -x232 -x233 -x234 -x235 -x236 -x237 -x238 -x239 -x240 -x241 x242 x243 -x244 -x245 -x246 -x247 -x248 -x249 x250 -x251 x252 x253 -x254 -x255 -x256 -x257 -x258 -x259 -x260 -x261 -x262 x263 -x264 x265 x266 -x267 -x268 -x269 -x270 -x271 -x272 -x273 -x274 -x275 -x276 -x277 -x278 -x279 -x280 -x281 -x282 -x283 -x284 -x285 x286 -x287 -x288 -x289 -x290 
1.13/0.70	c objective function=10447498
1.13/0.70	c Total wall clock time (in seconds): 0.498

Verifier Data 

OK	10447498

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2659622-1276347062/watcher-2659622-1276347062 -o /tmp/evaluation-result-2659622-1276347062/solver-2659622-1276347062 -C 1800 -W 2000 -M 1800 java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar HOME/instance-2659622-1276347062.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: 1.19 1.26 1.26 3/106 13699
/proc/meminfo: memFree=1851200/2059040 swapFree=4135540/4192956
[pid=13699] ppid=13697 vsize=1832 CPUtime=0
/proc/13699/stat : 13699 (java6) S 13697 13699 13116 0 -1 4194304 255 0 0 0 0 0 0 0 19 0 1 0 10310130 1875968 157 1992294400 134512640 134550932 4294332960 18446744073709551615 4294960144 0 2147483391 4096 0 18446744071699383486 0 0 17 1 0 0 0
/proc/13699/statm: 458 157 119 10 0 63 0

[startup+0.0295389 s]
/proc/loadavg: 1.19 1.26 1.26 3/106 13699
/proc/meminfo: memFree=1851200/2059040 swapFree=4135540/4192956
[pid=13699] ppid=13697 vsize=1517712 CPUtime=0.01
/proc/13699/stat : 13699 (java) S 13697 13699 13116 0 -1 4202496 2621 0 1 0 0 1 0 0 18 0 3 0 10310130 1554137088 2064 1992294400 134512640 134550932 4288621200 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 0 0 0 0
/proc/13699/statm: 379428 2064 419 10 0 377139 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1517712

[startup+0.101052 s]
/proc/loadavg: 1.19 1.26 1.26 3/106 13699
/proc/meminfo: memFree=1851200/2059040 swapFree=4135540/4192956
[pid=13699] ppid=13697 vsize=1524184 CPUtime=0.08
/proc/13699/stat : 13699 (java) S 13697 13699 13116 0 -1 4202496 3963 0 1 0 6 2 0 0 18 0 12 0 10310130 1560764416 3401 1992294400 134512640 134550932 4288621200 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0 0
/proc/13699/statm: 381046 3401 1076 10 0 378348 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1524184

[startup+0.300872 s]
/proc/loadavg: 1.19 1.26 1.26 3/106 13699
/proc/meminfo: memFree=1851200/2059040 swapFree=4135540/4192956
[pid=13699] ppid=13697 vsize=1526444 CPUtime=0.36
/proc/13699/stat : 13699 (java) S 13697 13699 13116 0 -1 4202496 5381 0 1 0 33 3 0 0 18 0 12 0 10310130 1563078656 4817 1992294400 134512640 134550932 4288621200 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0 0
/proc/13699/statm: 381611 4817 1361 10 0 378913 0
Current children cumulated CPU time (s) 0.36
Current children cumulated vsize (KiB) 1526444

[startup+0.700866 s]
/proc/loadavg: 1.19 1.26 1.26 3/106 13699
/proc/meminfo: memFree=1851200/2059040 swapFree=4135540/4192956
[pid=13699] ppid=13697 vsize=1529528 CPUtime=1.13
/proc/13699/stat : 13699 (java) S 13697 13699 13116 0 -1 4202496 7266 0 1 0 110 3 0 0 18 0 13 0 10310130 1566236672 6583 1992294400 134512640 134550932 4288621200 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0 0
/proc/13699/statm: 382382 6583 1416 10 0 379684 0
Current children cumulated CPU time (s) 1.13
Current children cumulated vsize (KiB) 1529528

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

Child status: 30
Real time (s): 0.747435
CPU time (s): 1.21281
CPU user time (s): 1.16882
CPU system time (s): 0.043993
CPU usage (%): 162.264
Max. virtual memory (cumulated for all children) (KiB): 1529528

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.16882
system time used= 0.043993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7321
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= 147
involuntary context switches= 113

runsolver used 0.003999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node002 at 2010-06-12 14:51:02
IDJOB=2659622
IDBENCH=1519
IDSOLVER=1164
FILE ID=node002/2659622-1276347062
PBS_JOBID= 11173182
Free space on /tmp= 62400 MiB

SOLVER NAME= SAT4J PB Resolution 2.2.0 2010-05-26
BENCH NAME= PB06//final/normalized-PB06/OPT-MEDINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-p0291.opb
COMMAND LINE= java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2659622-1276347062/watcher-2659622-1276347062 -o /tmp/evaluation-result-2659622-1276347062/solver-2659622-1276347062 -C 1800 -W 2000 -M 1800  java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar HOME/instance-2659622-1276347062.opb

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

MD5SUM BENCH= 5dbbb39821171ddf7cf17b36f56beeda
RANDOM SEED=1081834319

node002.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		: 3000.242
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	: 6000.48
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		: 3000.242
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	: 5599.36
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1851472 kB
Buffers:         18384 kB
Cached:         115300 kB
SwapCached:      17716 kB
Active:          98624 kB
Inactive:        54812 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1851472 kB
SwapTotal:     4192956 kB
SwapFree:      4135540 kB
Dirty:             288 kB
Writeback:           0 kB
AnonPages:       10700 kB
Mapped:           9080 kB
Slab:            32184 kB
PageTables:       4032 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179696 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= 62400 MiB
End job on node002 at 2010-06-12 14:51:03