Trace number 1518926

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 2.35964 2.36075

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/480/
unif-k3-r4.25-v480-c2040-S554804223-012.cnf
MD5SUMfb88daaef532d2aea4a43cab65510e36
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.017996
Satisfiable
(Un)Satisfiability was proved
Number of variables480
Number of clauses2040
Sum of the clauses size6120
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32040
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.01/0.02	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.01/0.02	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.01/0.02	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.01/0.02	c main()::
0.01/0.02	c initFormula():: searching for DIMACS p-line....
0.01/0.02	c initFormula():: the DIMACS p-line indicates a CNF of 480 variables and 2040 clauses.
0.01/0.02	c parseCNF():: parsing....
0.01/0.02	c parseCNF():: the CNF contains 0 unary clauses.
0.01/0.02	c runParser():: parsing was successful, warming up engines...
0.01/0.02	c simplify_formula():: removed 0 tautological, 7 satisfied and 0 duplicate clauses
0.01/0.02	c preprocessing fase I completed:: there are now 479 free variables and 2033 clauses.
0.01/0.02	c stat :: sign balance is biased by 0.497
0.01/0.02	c using 3-SAT heuristics (occurence based diff)
0.01/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.01/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 176 duplicate clauses
0.01/0.02	c resolvent_look() :: found 92 resolvents
0.01/0.02	c lessRedundantTransformation():: nothing to be done.
0.01/0.02	c transformTo3SAT():: you gave me 480 variables and 2125 clauses.
0.01/0.02	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.01/0.02	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.01/0.02	c transformTo3SAT():: the transformation yielded 480 variabels and 2125 clauses.
0.01/0.02	c main():: clause / variable ratio: ( 2125 / 480 ) = 4.43
0.01/0.02	c longest clause has size 3
0.01/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.01/0.02	c number of free variables = 479
0.01/0.02	c dynamic_preselect_setsize :: off
0.01/0.02	c main():: all systems go!
0.01/0.02	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/999) NodeCount: 31
0.01/0.02	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 1/999) NodeCount: 479
0.09/0.14	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |*****************************************
c |******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 2/999) NodeCount: 4253
1.29/1.37	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |*********
c |**********
c |************
c |*************
c |**************
c |***************
c |****************
c |*****************
c |******************
c |********************
c |*********************
c |**********************
c |***********************
c |************************
c |*************************
c |**************************
c |***************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |*************************************
c |**************************************
c |***************************************
c |****************************************
c |*****************************************
c |******************************************
c |*******************************************
2.29/2.36	c |0101001000000000000000000000000000000000000000000000000$$$$$$$$|
2.29/2.36	
c |*******************************************
2.29/2.36	c
2.29/2.36	c main():: nodeCount: 7181
2.29/2.36	c main():: dead ends in main: 32
2.29/2.36	c main():: lookAheadCount: 532820
2.29/2.36	c main():: unitResolveCount: 44459
2.29/2.36	c main():: time=2.350000
2.29/2.36	c main():: necessary_assignments: 834
2.29/2.36	c main():: bin_sat: 0, bin_unsat 0
2.29/2.36	c main():: doublelook: #: 15385, succes #: 6365
2.29/2.36	c main():: doublelook: overall 2.916 of all possible doublelooks executed
2.29/2.36	c main():: doublelook: succesrate: 41.371, average DL_trigger: 48.219
2.29/2.36	c main():: SOLUTION VERIFIED :-)
2.29/2.36	s SATISFIABLE
2.29/2.36	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 -60 61 -62 -63 64 65 66 -67 -68 69 -70 71 -72 -74 75 76 -77 -78 79 80 81 82 -83 -84 -85 86 -87 88 89 -90 -92 -93 94 -95 -96 -97 98 -99 100 101 102 -103 105 106 107 108 -109 110 -111 112 -113 114 115 116 117 118 -119 -120 -121 -122 123 -124 125 -126 -127 -128 129 -130 -131 -133 134 -135 -136 137 -138 139 140 141 -142 -143 144 145 146 149 -151 -152 153 -154 -155 -157 158 -159 -160 161 -162 164 165 -166 -167 169 -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 -196 198 -199 200 -203 204 205 -206 -207 -208 209 -210 -211 212 213 214 -215 -216 -217 -218 -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 -249 251 -252 -253 254 255 -256 257 258 259 260 -261 -262 263 -264 265 266 268 269 270 -271 -272 273 -274 -275 -276 277 278 279 -280 -281 282 283 -284 -285 -286 -287 -288 290 -291 292 -293 294 295 296 -297 298 -299 300 301 302 -303 304 -305 -307 -308 -309 310 311 312 -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 -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 -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 -428 -429 -430 -431 432 -433 434 436 437 439 440 441 -442 443 444 445 -446 -447 448 449 450 451 -452 -454 -455 -456 457 -458 -459 460 -461 462 463 -464 465 -466 467 -468 -469 470 471 472 473 474 475 476 -477 -478 479 -480 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-1518926-1238306109/watcher-1518926-1238306109 -o /tmp/evaluation-result-1518926-1238306109/solver-1518926-1238306109 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1518926-1238306109.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: 0.92 0.98 0.99 2/73 10964
/proc/meminfo: memFree=1540096/2055920 swapFree=4177652/4192956
[pid=10964] ppid=10962 vsize=972 CPUtime=0
/proc/10964/stat : 10964 (march_nn) R 10962 10964 10718 0 -1 4194304 147 0 0 0 0 0 0 0 18 0 1 0 1103274884 995328 130 1992294400 134512640 135197250 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/10964/statm: 243 130 67 167 0 74 0

[startup+0.0167929 s]
/proc/loadavg: 0.92 0.98 0.99 2/73 10964
/proc/meminfo: memFree=1540096/2055920 swapFree=4177652/4192956
[pid=10964] ppid=10962 vsize=1104 CPUtime=0.01
/proc/10964/stat : 10964 (march_nn) R 10962 10964 10718 0 -1 4194304 176 0 0 0 1 0 0 0 18 0 1 0 1103274884 1130496 159 1992294400 134512640 135197250 4294956240 18446744073709551615 134691463 0 0 4096 0 0 0 0 17 1 0 0
/proc/10964/statm: 276 159 83 167 0 107 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1104

[startup+0.1018 s]
/proc/loadavg: 0.92 0.98 0.99 2/73 10964
/proc/meminfo: memFree=1540096/2055920 swapFree=4177652/4192956
[pid=10964] ppid=10962 vsize=1716 CPUtime=0.09
/proc/10964/stat : 10964 (march_nn) R 10962 10964 10718 0 -1 4194304 290 0 0 0 9 0 0 0 18 0 1 0 1103274884 1757184 273 1992294400 134512640 135197250 4294956240 18446744073709551615 134542169 0 0 4096 0 0 0 0 17 1 0 0
/proc/10964/statm: 429 273 93 167 0 260 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1716

[startup+0.30182 s]
/proc/loadavg: 0.92 0.98 0.99 2/73 10964
/proc/meminfo: memFree=1540096/2055920 swapFree=4177652/4192956
[pid=10964] ppid=10962 vsize=1848 CPUtime=0.29
/proc/10964/stat : 10964 (march_nn) R 10962 10964 10718 0 -1 4194304 309 0 0 0 29 0 0 0 20 0 1 0 1103274884 1892352 292 1992294400 134512640 135197250 4294956240 18446744073709551615 134552753 0 0 4096 0 0 0 0 17 1 0 0
/proc/10964/statm: 462 292 93 167 0 293 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1848

[startup+0.70186 s]
/proc/loadavg: 0.92 0.98 0.99 2/73 10964
/proc/meminfo: memFree=1540096/2055920 swapFree=4177652/4192956
[pid=10964] ppid=10962 vsize=1984 CPUtime=0.69
/proc/10964/stat : 10964 (march_nn) R 10962 10964 10718 0 -1 4194304 334 0 0 0 69 0 0 0 24 0 1 0 1103274884 2031616 317 1992294400 134512640 135197250 4294956240 18446744073709551615 134542433 0 0 4096 0 0 0 0 17 1 0 0
/proc/10964/statm: 496 317 93 167 0 327 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1984

[startup+1.50194 s]
/proc/loadavg: 0.92 0.98 0.99 2/74 10965
/proc/meminfo: memFree=1539128/2055920 swapFree=4177652/4192956
[pid=10964] ppid=10962 vsize=2120 CPUtime=1.49
/proc/10964/stat : 10964 (march_nn) R 10962 10964 10718 0 -1 4194304 375 0 0 0 149 0 0 0 25 0 1 0 1103274884 2170880 358 1992294400 134512640 135197250 4294956240 18446744073709551615 134542050 0 0 4096 0 0 0 0 17 1 0 0
/proc/10964/statm: 530 358 93 167 0 361 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2120

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

[startup+1.90198 s]
/proc/loadavg: 0.92 0.98 0.99 2/74 10965
/proc/meminfo: memFree=1539128/2055920 swapFree=4177652/4192956
[pid=10964] ppid=10962 vsize=2188 CPUtime=1.89
/proc/10964/stat : 10964 (march_nn) R 10962 10964 10718 0 -1 4194304 383 0 0 0 189 0 0 0 25 0 1 0 1103274884 2240512 366 1992294400 134512640 135197250 4294956240 18446744073709551615 134603821 0 0 4096 0 0 0 0 17 1 0 0
/proc/10964/statm: 547 366 93 167 0 378 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 2188

[startup+2.30202 s]
/proc/loadavg: 0.92 0.98 0.99 2/74 10965
/proc/meminfo: memFree=1538744/2055920 swapFree=4177652/4192956
[pid=10964] ppid=10962 vsize=2188 CPUtime=2.29
/proc/10964/stat : 10964 (march_nn) R 10962 10964 10718 0 -1 4194304 391 0 0 0 229 0 0 0 25 0 1 0 1103274884 2240512 374 1992294400 134512640 135197250 4294956240 18446744073709551615 134525324 0 0 4096 0 0 0 0 17 1 0 0
/proc/10964/statm: 547 374 93 167 0 378 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 2188

Child status: 10
Real time (s): 2.36075
CPU time (s): 2.35964
CPU user time (s): 2.35764
CPU system time (s): 0.001999
CPU usage (%): 99.9531
Max. virtual memory (cumulated for all children) (KiB): 2188

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.35764
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 410
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= 3

runsolver used 0.005999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node84 at 2009-03-29 07:55:09
IDJOB=1518926
IDBENCH=70720
IDSOLVER=522
FILE ID=node84/1518926-1238306109
PBS_JOBID= 9061078
Free space on /tmp= 66120 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/480/unif-k3-r4.25-v480-c2040-S554804223-012.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1518926-1238306109/watcher-1518926-1238306109 -o /tmp/evaluation-result-1518926-1238306109/solver-1518926-1238306109 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1518926-1238306109.cnf

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

MD5SUM BENCH= fb88daaef532d2aea4a43cab65510e36
RANDOM SEED=1714663147

node84.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		: 3000.231
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		: 3000.231
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1540512 kB
Buffers:         70584 kB
Cached:         357248 kB
SwapCached:       6960 kB
Active:         204012 kB
Inactive:       233352 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1540512 kB
SwapTotal:     4192956 kB
SwapFree:      4177652 kB
Dirty:             828 kB
Writeback:           0 kB
Mapped:          15028 kB
Slab:            63176 kB
Committed_AS:  2792804 kB
PageTables:       1980 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= 66120 MiB
End job on node84 at 2009-03-29 07:55:12