Trace number 1545008

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
SAT07 reference solver: March KS 2007-02-08SAT 2.95455 2.95646

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/460/
unif-k3-r4.25-v460-c1955-S1614425450-034.cnf
MD5SUMb466b358793a0dcf15cdf46533518f73
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012997
Satisfiable
(Un)Satisfiability was proved
Number of variables460
Number of clauses1955
Sum of the clauses size5865
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31955
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) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
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 460 variables and 1955 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, 6 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 459 free variables and 1949 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.470
0.00/0.01	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.00/0.01	c using 3-SAT heuristics (occurence based diff)
0.00/0.01	c longest clause has size 3
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 158 duplicate clauses
0.00/0.01	c resolvent_look() :: found 96 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 460 variables and 2045 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 460 variabels and 2045 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 2045 / 460 ) = 4.45
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 dynamic_preselect_setsize :: off
0.00/0.01	c suggested doublelook initial :: 0
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 194 JD: 22
0.09/0.11	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| 1 NC: 2766 JD: 22
1.39/1.48	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
2.89/2.95	c solution bin :: 0101000000000000000000.1000010000
2.89/2.95	c direction branchin :: current_rights = 4
2.89/2.95	
c |****************************************
2.89/2.95	c
2.89/2.95	c main():: nodeCount: 5511
2.89/2.95	c main():: dead ends in main: 116
2.89/2.95	c main():: lookAheadCount: 454321
2.89/2.95	c main():: unitResolveCount: 75461
2.89/2.95	c main():: time=2.950000
2.89/2.95	c main():: necessary_assignments: 1599
2.89/2.95	c main():: bin_sat: 0, bin_unsat 0
2.89/2.95	c main():: doublelook: #: 24115, succes #: 18016
2.89/2.95	c main():: doublelook: overall 5.487 of all possible doublelooks executed
2.89/2.95	c main():: doublelook: succesrate: 74.709, average DL_trigger: 7096.798
2.89/2.95	c main():: SOLUTION VERIFIED :-)
2.89/2.95	s SATISFIABLE
2.89/2.95	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 -29 30 31 -32 33 -34 -35 -36 37 38 -39 40 -41 42 43 44 -45 -46 47 48 -49 50 51 52 -53 -54 55 56 -57 58 -59 -60 61 -62 -63 64 65 66 -67 68 69 70 -71 -72 -73 -74 -75 76 77 -78 -79 80 -81 -82 83 -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 -119 120 121 122 123 124 -125 -126 -127 -128 129 130 -131 132 133 -134 -135 -136 137 138 -139 -140 141 142 143 144 -145 146 -147 -148 -149 150 151 -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 -187 188 189 -190 -191 192 -193 194 195 -196 -197 198 199 200 -201 202 203 204 -205 -206 207 208 -209 -210 211 -212 -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 -238 239 240 -241 -242 -243 244 245 246 247 248 -249 -250 251 252 253 254 -255 -256 -257 258 259 -260 261 -262 263 -264 265 -266 267 -268 269 -270 271 -272 273 -274 275 -276 -277 -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 -305 306 307 308 -309 310 -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 -361 362 -363 364 365 -366 367 368 369 -370 -371 -372 -373 -374 -375 376 -377 -378 -379 -380 -381 -382 -383 384 -385 386 -387 -388 389 -390 -391 -392 393 -394 -395 -396 -397 -398 -399 400 -401 -402 403 404 405 -406 407 -408 -409 410 411 412 -413 414 -415 416 417 -418 419 -420 421 -422 423 -424 -425 426 -427 -428 -429 430 -431 -432 433 434 435 -436 -437 -438 -439 -440 441 442 -443 -444 -445 -446 447 -448 -449 450 -451 452 -453 -454 455 -456 457 458 459 -460 0

Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1545008-1238615053/watcher-1545008-1238615053 -o /tmp/evaluation-result-1545008-1238615053/solver-1545008-1238615053 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1545008-1238615053.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 1.00 0.93 3/64 10255
/proc/meminfo: memFree=841544/2055920 swapFree=4176868/4192956
[pid=10255] ppid=10253 vsize=804 CPUtime=0
/proc/10255/stat : 10255 (march_ks) R 10253 10255 9893 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1134167676 823296 111 1992294400 134512640 135019032 4294956240 18446744073709551615 134533376 0 0 4096 0 0 0 0 17 0 0 0
/proc/10255/statm: 201 111 51 123 0 76 0

[startup+0.0324821 s]
/proc/loadavg: 1.00 1.00 0.93 3/64 10255
/proc/meminfo: memFree=841544/2055920 swapFree=4176868/4192956
[pid=10255] ppid=10253 vsize=1212 CPUtime=0.02
/proc/10255/stat : 10255 (march_ks) R 10253 10255 9893 0 -1 4194304 251 0 0 0 2 0 0 0 18 0 1 0 1134167676 1241088 234 1992294400 134512640 135019032 4294956240 18446744073709551615 134526441 0 0 4096 0 0 0 0 17 0 0 0
/proc/10255/statm: 303 234 73 123 0 178 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1212

[startup+0.101487 s]
/proc/loadavg: 1.00 1.00 0.93 3/64 10255
/proc/meminfo: memFree=841544/2055920 swapFree=4176868/4192956
[pid=10255] ppid=10253 vsize=1344 CPUtime=0.09
/proc/10255/stat : 10255 (march_ks) R 10253 10255 9893 0 -1 4194304 261 0 0 0 9 0 0 0 18 0 1 0 1134167676 1376256 244 1992294400 134512640 135019032 4294956240 18446744073709551615 134526441 0 0 4096 0 0 0 0 17 0 0 0
/proc/10255/statm: 336 244 73 123 0 211 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1344

[startup+0.301505 s]
/proc/loadavg: 1.00 1.00 0.93 3/64 10255
/proc/meminfo: memFree=841544/2055920 swapFree=4176868/4192956
[pid=10255] ppid=10253 vsize=1344 CPUtime=0.29
/proc/10255/stat : 10255 (march_ks) R 10253 10255 9893 0 -1 4194304 273 0 0 0 29 0 0 0 19 0 1 0 1134167676 1376256 256 1992294400 134512640 135019032 4294956240 18446744073709551615 134526443 0 0 4096 0 0 0 0 17 0 0 0
/proc/10255/statm: 336 256 73 123 0 211 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1344

[startup+0.701542 s]
/proc/loadavg: 1.00 1.00 0.93 3/64 10255
/proc/meminfo: memFree=841544/2055920 swapFree=4176868/4192956
[pid=10255] ppid=10253 vsize=1344 CPUtime=0.69
/proc/10255/stat : 10255 (march_ks) R 10253 10255 9893 0 -1 4194304 283 0 0 0 69 0 0 0 24 0 1 0 1134167676 1376256 266 1992294400 134512640 135019032 4294956240 18446744073709551615 134526429 0 0 4096 0 0 0 0 17 0 0 0
/proc/10255/statm: 336 266 73 123 0 211 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1344

[startup+1.50162 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 10256
/proc/meminfo: memFree=840704/2055920 swapFree=4176868/4192956
[pid=10255] ppid=10253 vsize=1476 CPUtime=1.49
/proc/10255/stat : 10255 (march_ks) R 10253 10255 9893 0 -1 4194304 294 0 0 0 149 0 0 0 25 0 1 0 1134167676 1511424 277 1992294400 134512640 135019032 4294956240 18446744073709551615 134542361 0 0 4096 0 0 0 0 17 0 0 0
/proc/10255/statm: 369 277 73 123 0 244 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1476

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

[startup+2.30169 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 10256
/proc/meminfo: memFree=840512/2055920 swapFree=4176868/4192956
[pid=10255] ppid=10253 vsize=1476 CPUtime=2.29
/proc/10255/stat : 10255 (march_ks) R 10253 10255 9893 0 -1 4194304 299 0 0 0 229 0 0 0 25 0 1 0 1134167676 1511424 282 1992294400 134512640 135019032 4294956240 18446744073709551615 134526476 0 0 4096 0 0 0 0 17 0 0 0
/proc/10255/statm: 369 282 73 123 0 244 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 1476

[startup+2.70273 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 10256
/proc/meminfo: memFree=840512/2055920 swapFree=4176868/4192956
[pid=10255] ppid=10253 vsize=1476 CPUtime=2.69
/proc/10255/stat : 10255 (march_ks) R 10253 10255 9893 0 -1 4194304 301 0 0 0 269 0 0 0 25 0 1 0 1134167676 1511424 284 1992294400 134512640 135019032 4294956240 18446744073709551615 134538116 0 0 4096 0 0 0 0 17 0 0 0
/proc/10255/statm: 369 284 73 123 0 244 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 1476

[startup+2.90275 s]
/proc/loadavg: 1.00 1.00 0.93 2/65 10256
/proc/meminfo: memFree=840512/2055920 swapFree=4176868/4192956
[pid=10255] ppid=10253 vsize=1476 CPUtime=2.89
/proc/10255/stat : 10255 (march_ks) R 10253 10255 9893 0 -1 4194304 302 0 0 0 289 0 0 0 25 0 1 0 1134167676 1511424 285 1992294400 134512640 135019032 4294956240 18446744073709551615 134527205 0 0 4096 0 0 0 0 17 0 0 0
/proc/10255/statm: 369 285 73 123 0 244 0
Current children cumulated CPU time (s) 2.89
Current children cumulated vsize (KiB) 1476

Child status: 10
Real time (s): 2.95646
CPU time (s): 2.95455
CPU user time (s): 2.95155
CPU system time (s): 0.002999
CPU usage (%): 99.9353
Max. virtual memory (cumulated for all children) (KiB): 1476

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.95155
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 305
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= 10

runsolver used 0.004999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node48 at 2009-04-01 21:44:13
IDJOB=1545008
IDBENCH=70731
IDSOLVER=559
FILE ID=node48/1545008-1238615053
PBS_JOBID= 9073596
Free space on /tmp= 66464 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/460/unif-k3-r4.25-v460-c1955-S1614425450-034.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1545008-1238615053/watcher-1545008-1238615053 -o /tmp/evaluation-result-1545008-1238615053/solver-1545008-1238615053 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1545008-1238615053.cnf            

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

MD5SUM BENCH= b466b358793a0dcf15cdf46533518f73
RANDOM SEED=531158604

node48.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		: 3000.236
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		: 3000.236
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:        842032 kB
Buffers:        108188 kB
Cached:        1000268 kB
SwapCached:      10280 kB
Active:         340284 kB
Inactive:       780084 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        842032 kB
SwapTotal:     4192956 kB
SwapFree:      4176868 kB
Dirty:            3508 kB
Writeback:           0 kB
Mapped:          17528 kB
Slab:            79564 kB
Committed_AS:  2815412 kB
PageTables:       1376 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= 66460 MiB
End job on node48 at 2009-04-01 21:44:16