Trace number 1518781

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_hi hiSAT 4.98624 4.98796

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/540/
unif-k3-r4.25-v540-c2295-S1916548023-003.cnf
MD5SUM11db2aaf72f0cb9c260a5127c4f6b388
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011997
Satisfiable
(Un)Satisfiability was proved
Number of variables540
Number of clauses2295
Sum of the clauses size6885
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32295
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.02	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.02	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.02	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.02	c main()::
0.00/0.02	c initFormula():: searching for DIMACS p-line....
0.00/0.02	c initFormula():: the DIMACS p-line indicates a CNF of 540 variables and 2295 clauses.
0.00/0.02	c parseCNF():: parsing....
0.00/0.02	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.02	c runParser():: parsing was successful, warming up engines...
0.00/0.02	c simplify_formula():: removed 0 tautological, 15 satisfied and 0 duplicate clauses
0.00/0.02	c preprocessing fase I completed:: there are now 538 free variables and 2280 clauses.
0.00/0.02	c stat :: sign balance is biased by 0.545
0.00/0.02	c using 3-SAT heuristics (occurence based diff)
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 145 duplicate clauses
0.00/0.02	c resolvent_look() :: found 73 resolvents
0.00/0.02	c lessRedundantTransformation():: nothing to be done.
0.00/0.02	c transformTo3SAT():: you gave me 540 variables and 2353 clauses.
0.00/0.02	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.02	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.02	c transformTo3SAT():: the transformation yielded 540 variabels and 2353 clauses.
0.00/0.02	c main():: clause / variable ratio: ( 2353 / 540 ) = 4.36
0.00/0.02	c longest clause has size 3
0.00/0.02	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.02	c number of free variables = 538
0.00/0.02	c dynamic_preselect_setsize :: off
0.00/0.02	c main():: all systems go!
0.00/0.02	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/999) NodeCount: 139
0.00/0.09	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: 810
0.19/0.27	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: 8262
2.59/2.69	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 |**********************************************
4.89/4.98	c |010001000000010000000000000000000000000000000000000000000000000|
4.89/4.98	
c |**********************************************
4.89/4.98	c
4.89/4.98	c main():: nodeCount: 15048
4.89/4.98	c main():: dead ends in main: 66
4.89/4.98	c main():: lookAheadCount: 1045160
4.89/4.98	c main():: unitResolveCount: 96615
4.89/4.98	c main():: time=4.980000
4.89/4.98	c main():: necessary_assignments: 1833
4.89/4.98	c main():: bin_sat: 0, bin_unsat 0
4.89/4.98	c main():: doublelook: #: 29041, succes #: 10585
4.89/4.98	c main():: doublelook: overall 2.803 of all possible doublelooks executed
4.89/4.98	c main():: doublelook: succesrate: 36.448, average DL_trigger: 47.824
4.89/4.98	c main():: SOLUTION VERIFIED :-)
4.89/4.98	s SATISFIABLE
4.89/4.98	v -1 -2 3 4 5 -6 7 8 -9 -10 11 12 13 -14 16 -17 -18 19 -20 21 22 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 -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 -101 -102 -103 -104 -105 -106 -107 109 110 111 112 113 114 -115 -116 117 118 -119 -120 121 -122 123 -124 125 -126 127 -128 129 130 131 -132 134 135 136 137 138 139 -140 141 -142 -143 144 -145 146 -147 148 149 -150 151 152 -153 -154 155 156 157 159 -160 161 162 163 164 -165 166 168 -169 -170 171 172 -173 174 175 176 177 178 179 180 -181 182 -183 -184 -185 -186 -187 -188 189 -191 192 -193 194 195 -197 198 199 200 201 202 203 204 205 -206 -207 208 -209 -210 212 -213 214 -216 -217 -218 219 220 221 222 -223 -224 -225 -226 -227 -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 -257 258 259 260 263 -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 -309 311 312 -313 -314 -315 -316 317 318 -319 320 321 322 323 -324 325 326 -327 -328 -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 -393 394 395 -396 -397 398 399 400 401 402 -403 -404 405 406 -408 -409 410 411 -412 413 -414 -415 416 -417 -418 -419 -421 422 -423 -424 -425 -426 -427 -428 429 430 -431 -432 434 436 437 -438 -439 440 442 -443 444 -445 446 -447 -448 -449 450 -451 -452 -453 -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 -481 -482 483 -484 485 486 -487 488 489 490 -491 493 -494 -495 -496 -497 499 -501 503 504 505 506 -507 -508 -509 -510 511 -512 -513 -514 -515 516 517 518 -519 -520 -521 522 524 -525 526 527 528 -529 530 -531 -532 -533 -534 -535 536 538 -539 -540 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-1518781-1238303947/watcher-1518781-1238303947 -o /tmp/evaluation-result-1518781-1238303947/solver-1518781-1238303947 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1518781-1238303947.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: 0.98 1.04 1.00 3/73 12220
/proc/meminfo: memFree=1079208/2055920 swapFree=4173988/4192956
[pid=12220] ppid=12218 vsize=972 CPUtime=0
/proc/12220/stat : 12220 (march_hi) R 12218 12220 11838 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 1103059723 995328 126 1992294400 134512640 135197378 4294956240 18446744073709551615 134565226 0 0 4096 0 0 0 0 17 1 0 0
/proc/12220/statm: 243 126 65 167 0 74 0

[startup+0.092263 s]
/proc/loadavg: 0.98 1.04 1.00 3/73 12220
/proc/meminfo: memFree=1079208/2055920 swapFree=4173988/4192956
[pid=12220] ppid=12218 vsize=1924 CPUtime=0.09
/proc/12220/stat : 12220 (march_hi) R 12218 12220 11838 0 -1 4194304 321 0 0 0 9 0 0 0 18 0 1 0 1103059723 1970176 304 1992294400 134512640 135197378 4294956240 18446744073709551615 134542050 0 0 4096 0 0 0 0 17 1 0 0
/proc/12220/statm: 481 304 91 167 0 312 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1924

[startup+0.101264 s]
/proc/loadavg: 0.98 1.04 1.00 3/73 12220
/proc/meminfo: memFree=1079208/2055920 swapFree=4173988/4192956
[pid=12220] ppid=12218 vsize=1924 CPUtime=0.09
/proc/12220/stat : 12220 (march_hi) R 12218 12220 11838 0 -1 4194304 323 0 0 0 9 0 0 0 18 0 1 0 1103059723 1970176 306 1992294400 134512640 135197378 4294956240 18446744073709551615 134542152 0 0 4096 0 0 0 0 17 1 0 0
/proc/12220/statm: 481 306 91 167 0 312 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1924

[startup+0.301302 s]
/proc/loadavg: 0.98 1.04 1.00 3/73 12220
/proc/meminfo: memFree=1079208/2055920 swapFree=4173988/4192956
[pid=12220] ppid=12218 vsize=1924 CPUtime=0.29
/proc/12220/stat : 12220 (march_hi) R 12218 12220 11838 0 -1 4194304 341 0 0 0 29 0 0 0 19 0 1 0 1103059723 1970176 324 1992294400 134512640 135197378 4294956240 18446744073709551615 134542026 0 0 4096 0 0 0 0 17 1 0 0
/proc/12220/statm: 481 324 91 167 0 312 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1924

[startup+0.701379 s]
/proc/loadavg: 0.98 1.04 1.00 3/73 12220
/proc/meminfo: memFree=1079208/2055920 swapFree=4173988/4192956
[pid=12220] ppid=12218 vsize=2060 CPUtime=0.69
/proc/12220/stat : 12220 (march_hi) R 12218 12220 11838 0 -1 4194304 358 0 0 0 69 0 0 0 23 0 1 0 1103059723 2109440 341 1992294400 134512640 135197378 4294956240 18446744073709551615 134591860 0 0 4096 0 0 0 0 17 1 0 0
/proc/12220/statm: 515 341 91 167 0 346 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2060

[startup+1.50153 s]
/proc/loadavg: 0.98 1.04 1.00 2/74 12221
/proc/meminfo: memFree=1078048/2055920 swapFree=4173988/4192956
[pid=12220] ppid=12218 vsize=2196 CPUtime=1.49
/proc/12220/stat : 12220 (march_hi) R 12218 12220 11838 0 -1 4194304 412 0 0 0 149 0 0 0 25 0 1 0 1103059723 2248704 395 1992294400 134512640 135197378 4294956240 18446744073709551615 134556353 0 0 4096 0 0 0 0 17 1 0 0
/proc/12220/statm: 549 395 91 167 0 380 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2196

[startup+3.10184 s]
/proc/loadavg: 0.98 1.04 1.00 2/74 12221
/proc/meminfo: memFree=1077792/2055920 swapFree=4173988/4192956
[pid=12220] ppid=12218 vsize=2364 CPUtime=3.09
/proc/12220/stat : 12220 (march_hi) R 12218 12220 11838 0 -1 4194304 439 0 0 0 309 0 0 0 25 0 1 0 1103059723 2420736 422 1992294400 134512640 135197378 4294956240 18446744073709551615 134525296 0 0 4096 0 0 0 0 17 1 0 0
/proc/12220/statm: 591 422 91 167 0 422 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2364

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

[startup+3.90199 s]
/proc/loadavg: 0.98 1.04 1.00 2/74 12221
/proc/meminfo: memFree=1077600/2055920 swapFree=4173988/4192956
[pid=12220] ppid=12218 vsize=2364 CPUtime=3.89
/proc/12220/stat : 12220 (march_hi) R 12218 12220 11838 0 -1 4194304 453 0 0 0 389 0 0 0 25 0 1 0 1103059723 2420736 436 1992294400 134512640 135197378 4294956240 18446744073709551615 134526654 0 0 4096 0 0 0 0 17 1 0 0
/proc/12220/statm: 591 436 91 167 0 422 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 2364

[startup+4.70114 s]
/proc/loadavg: 0.98 1.04 1.00 2/74 12221
/proc/meminfo: memFree=1077536/2055920 swapFree=4173988/4192956
[pid=12220] ppid=12218 vsize=2736 CPUtime=4.69
/proc/12220/stat : 12220 (march_hi) R 12218 12220 11838 0 -1 4194304 478 0 0 0 469 0 0 0 25 0 1 0 1103059723 2801664 461 1992294400 134512640 135197378 4294956240 18446744073709551615 134614144 0 0 4096 0 0 0 0 17 1 0 0
/proc/12220/statm: 684 461 91 167 0 515 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 2736

[startup+4.90118 s]
/proc/loadavg: 0.98 1.04 1.00 2/74 12221
/proc/meminfo: memFree=1077536/2055920 swapFree=4173988/4192956
[pid=12220] ppid=12218 vsize=2736 CPUtime=4.89
/proc/12220/stat : 12220 (march_hi) R 12218 12220 11838 0 -1 4194304 483 0 0 0 489 0 0 0 25 0 1 0 1103059723 2801664 466 1992294400 134512640 135197378 4294956240 18446744073709551615 134552482 0 0 4096 0 0 0 0 17 1 0 0
/proc/12220/statm: 684 466 91 167 0 515 0
Current children cumulated CPU time (s) 4.89
Current children cumulated vsize (KiB) 2736

Child status: 10
Real time (s): 4.98796
CPU time (s): 4.98624
CPU user time (s): 4.98424
CPU system time (s): 0.001999
CPU usage (%): 99.9656
Max. virtual memory (cumulated for all children) (KiB): 2736

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.98424
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= 506
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= 4

runsolver used 0.003999 second user time and 0.021996 second system time

The end

Launcher Data 

Begin job on node76 at 2009-03-29 07:19:07
IDJOB=1518781
IDBENCH=70708
IDSOLVER=521
FILE ID=node76/1518781-1238303947
PBS_JOBID= 9061026
Free space on /tmp= 65808 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/540/unif-k3-r4.25-v540-c2295-S1916548023-003.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1518781-1238303947/watcher-1518781-1238303947 -o /tmp/evaluation-result-1518781-1238303947/solver-1518781-1238303947 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1518781-1238303947.cnf

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

MD5SUM BENCH= 11db2aaf72f0cb9c260a5127c4f6b388
RANDOM SEED=1674554969

node76.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		: 3000.259
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		: 3000.259
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:       1079624 kB
Buffers:         70060 kB
Cached:         817944 kB
SwapCached:      10684 kB
Active:         158308 kB
Inactive:       748692 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1079624 kB
SwapTotal:     4192956 kB
SwapFree:      4173988 kB
Dirty:             804 kB
Writeback:           0 kB
Mapped:          18988 kB
Slab:            54304 kB
Committed_AS:  2842976 kB
PageTables:       2048 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= 65808 MiB
End job on node76 at 2009-03-29 07:19:12