Trace number 1519118

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 NameAnswerCPU timeWall clock time
march_nn nnSAT 0.025995 0.0269179

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/380/
unif-k3-r4.25-v380-c1615-S1036996799-006.cnf
MD5SUMaea037edf2192f628decdd3193ff0d42
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008997
Satisfiable
(Un)Satisfiability was proved
Number of variables380
Number of clauses1615
Sum of the clauses size4845
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31615
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.01	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.01	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.01	c main()::
0.00/0.01	c initFormula():: searching for DIMACS p-line....
0.00/0.01	c initFormula():: the DIMACS p-line indicates a CNF of 380 variables and 1615 clauses.
0.00/0.01	c parseCNF():: parsing....
0.00/0.01	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.01	c runParser():: parsing was successful, warming up engines...
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 380 free variables and 1615 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.461
0.00/0.01	c using 3-SAT heuristics (occurence based diff)
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 142 duplicate clauses
0.00/0.01	c resolvent_look() :: found 69 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 380 variables and 1684 clauses.
0.00/0.01	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.01	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.01	c transformTo3SAT():: the transformation yielded 380 variabels and 1684 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1684 / 380 ) = 4.43
0.00/0.01	c longest clause has size 3
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c number of free variables = 380
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
0.00/0.02	c |0000000000000000000000000000000000000000000000000$$$$$$$$$$$$$$|
0.00/0.02	
c |
0.00/0.02	c
0.00/0.02	c main():: nodeCount: 49
0.00/0.02	c main():: dead ends in main: 0
0.00/0.02	c main():: lookAheadCount: 4515
0.00/0.02	c main():: unitResolveCount: 363
0.00/0.02	c main():: time=0.020000
0.00/0.02	c main():: necessary_assignments: 14
0.00/0.02	c main():: bin_sat: 0, bin_unsat 0
0.00/0.02	c main():: doublelook: #: 52, succes #: 7
0.00/0.02	c main():: doublelook: overall 1.159 of all possible doublelooks executed
0.00/0.02	c main():: doublelook: succesrate: 13.462, average DL_trigger: 34.666
0.00/0.02	c main():: SOLUTION VERIFIED :-)
0.00/0.02	s SATISFIABLE
0.00/0.02	v 1 2 3 -4 5 6 7 8 -9 10 11 -12 -13 -14 -15 16 17 18 19 20 -21 -22 23 24 25 26 -27 -28 -30 31 32 -33 -34 -35 36 -37 38 39 40 41 -42 43 44 -45 -46 -47 48 -49 51 52 -53 54 -55 56 -57 58 59 -60 61 62 -63 -64 65 67 68 -69 -71 72 73 -74 -76 77 -78 -79 80 81 -82 84 -85 -86 87 -88 89 -90 91 92 -93 94 95 96 -97 98 99 100 101 102 103 104 105 -106 -107 -108 -109 110 111 -112 113 -114 -115 116 -117 118 -119 120 -122 -123 124 -125 127 128 -129 -130 131 132 -133 -134 135 -136 137 138 139 -140 141 142 143 -144 -145 -146 -147 148 -149 151 -152 -153 -154 -155 -156 -157 -158 -159 -160 161 -162 163 -164 -165 166 -167 -168 -169 -170 -171 -172 -173 -174 -175 176 -177 178 -179 -180 -181 -182 183 184 185 186 188 -189 -190 -191 192 193 -194 -195 196 197 198 199 200 201 -202 -203 -204 -205 -206 -207 208 209 210 211 213 -214 -215 -216 217 218 -219 220 -221 222 223 224 225 226 227 228 -229 -230 231 232 -233 234 235 -236 237 -239 240 -241 242 243 -244 245 246 -247 -248 249 -250 251 -252 254 255 -256 257 -258 -259 260 -261 -262 263 -264 -265 -266 267 -268 269 -270 271 272 -273 274 275 276 -278 -279 280 -281 282 -283 -284 -285 286 -287 -288 -289 -290 291 292 293 294 -295 296 -297 -298 299 -300 -301 -302 303 -304 -306 -307 308 -310 311 -312 -313 -314 315 316 317 -318 319 -320 321 -322 -323 -324 -325 326 -327 -328 329 330 331 332 333 -334 -335 -336 337 338 339 340 341 342 -343 344 -345 346 347 348 -349 350 351 352 -353 -354 -355 356 -357 -358 359 -360 -362 363 364 365 366 367 368 369 -370 371 -372 373 374 375 376 377 378 -379 380 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1519118-1238308503/watcher-1519118-1238308503 -o /tmp/evaluation-result-1519118-1238308503/solver-1519118-1238308503 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1519118-1238308503.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 0.99 0.99 2/64 6655
/proc/meminfo: memFree=701496/2055920 swapFree=4178472/4192956
[pid=6655] ppid=6653 vsize=972 CPUtime=0
/proc/6655/stat : 6655 (march_nn) R 6653 6655 6257 0 -1 4194304 138 0 0 0 0 0 0 0 18 0 1 0 1103517259 995328 121 1992294400 134512640 135197250 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/6655/statm: 243 121 67 167 0 74 0

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

Child status: 10
Real time (s): 0.0269179
CPU time (s): 0.025995
CPU user time (s): 0.024996
CPU system time (s): 0.000999
CPU usage (%): 96.5713
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.024996
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 268
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 0

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node1 at 2009-03-29 08:35:03
IDJOB=1519118
IDBENCH=70736
IDSOLVER=522
FILE ID=node1/1519118-1238308503
PBS_JOBID= 9061071
Free space on /tmp= 66108 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/380/unif-k3-r4.25-v380-c1615-S1036996799-006.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1519118-1238308503/watcher-1519118-1238308503 -o /tmp/evaluation-result-1519118-1238308503/solver-1519118-1238308503 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1519118-1238308503.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= aea037edf2192f628decdd3193ff0d42
RANDOM SEED=1587981606

node1.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		: 3000.229
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		: 3000.229
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:        701976 kB
Buffers:         98284 kB
Cached:        1150180 kB
SwapCached:       8380 kB
Active:         187892 kB
Inactive:      1070644 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        701976 kB
SwapTotal:     4192956 kB
SwapFree:      4178472 kB
Dirty:             792 kB
Writeback:           0 kB
Mapped:          15820 kB
Slab:            81348 kB
Committed_AS:  2890348 kB
PageTables:       1440 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= 66108 MiB
End job on node1 at 2009-03-29 08:35:03