Trace number 1518890

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 6.49801 6.50063

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/480/
unif-k3-r4.25-v480-c2040-S1002348653-090.cnf
MD5SUMc369517cece9ac5de13f6444259c5dd0
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011998
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 

0.00/0.02	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 480 variables and 2040 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, 18 satisfied and 0 duplicate clauses
0.00/0.02	c preprocessing fase I completed:: there are now 477 free variables and 2022 clauses.
0.00/0.02	c stat :: sign balance is biased by 0.445
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 200 duplicate clauses
0.00/0.02	c resolvent_look() :: found 120 resolvents
0.00/0.02	c lessRedundantTransformation():: nothing to be done.
0.00/0.02	c transformTo3SAT():: you gave me 480 variables and 2142 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 480 variabels and 2142 clauses.
0.00/0.02	c main():: clause / variable ratio: ( 2142 / 480 ) = 4.46
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 = 477
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: 32
0.00/0.03	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: 461
0.09/0.15	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: 3854
1.30/1.34	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 |*************************************************
c |**************************************************
c |***************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
6.39/6.49	c |0000000101000000001000000000000000000000000000000000$$$$$$$$$$$|
6.39/6.49	
c |***************************************************************
6.39/6.50	c
6.39/6.50	c main():: nodeCount: 17614
6.39/6.50	c main():: dead ends in main: 84
6.39/6.50	c main():: lookAheadCount: 1266014
6.39/6.50	c main():: unitResolveCount: 116697
6.39/6.50	c main():: time=6.490000
6.39/6.50	c main():: necessary_assignments: 2152
6.39/6.50	c main():: bin_sat: 0, bin_unsat 0
6.39/6.50	c main():: doublelook: #: 40304, succes #: 18173
6.39/6.50	c main():: doublelook: overall 3.221 of all possible doublelooks executed
6.39/6.50	c main():: doublelook: succesrate: 45.090, average DL_trigger: 50.277
6.39/6.50	c main():: SOLUTION VERIFIED :-)
6.39/6.50	s SATISFIABLE
6.39/6.50	v -1 -2 4 5 -6 -7 8 9 10 11 12 -13 -14 -15 -16 17 -18 -19 20 -22 23 24 25 -26 27 29 30 31 -32 -33 -34 -35 37 38 -39 40 -41 -43 -44 -45 46 47 -48 -49 -50 -51 -52 -53 54 55 56 57 59 60 -61 -62 -63 -64 65 -66 67 68 -69 70 -71 72 73 -74 -75 76 77 78 -79 -80 -81 83 -85 86 -87 -88 -89 -90 91 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 -159 160 -161 -162 -163 164 165 -166 -167 168 -169 -170 171 172 -173 175 176 177 -178 179 -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 -206 208 209 210 -211 -212 213 215 216 217 218 -219 220 -221 -222 223 -224 225 226 227 228 229 230 231 232 233 234 -235 -236 237 -238 -239 -240 241 -243 -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 -276 -277 278 279 -280 -281 -282 283 -284 285 -286 287 -288 -289 -290 291 292 293 -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 -365 366 -367 368 -369 -370 371 372 -373 374 375 -376 -377 378 -379 -380 381 -382 -383 -384 -385 386 387 -388 -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 -425 426 427 428 429 -430 431 432 433 434 435 436 -437 -439 -440 -441 -443 444 -445 -446 -447 448 -449 450 -451 452 -453 -454 455 456 -457 458 459 460 -461 462 -463 464 -465 -466 467 468 469 470 471 472 474 475 -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-1518890-1238305704/watcher-1518890-1238305704 -o /tmp/evaluation-result-1518890-1238305704/solver-1518890-1238305704 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1518890-1238305704.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 3/68 13152
/proc/meminfo: memFree=1299904/2055920 swapFree=4175244/4192956
[pid=13152] ppid=13150 vsize=972 CPUtime=0
/proc/13152/stat : 13152 (march_nn) R 13150 13152 12924 0 -1 4194304 146 0 0 0 0 0 0 0 18 0 1 0 1103231995 995328 129 1992294400 134512640 135197250 4294956240 18446744073709551615 134722609 0 0 4096 0 0 0 0 17 1 0 0
/proc/13152/statm: 243 129 66 167 0 74 0

[startup+0.0520811 s]
/proc/loadavg: 0.92 0.98 0.99 3/68 13152
/proc/meminfo: memFree=1299904/2055920 swapFree=4175244/4192956
[pid=13152] ppid=13150 vsize=1724 CPUtime=0.05
/proc/13152/stat : 13152 (march_nn) R 13150 13152 12924 0 -1 4194304 279 0 0 0 5 0 0 0 18 0 1 0 1103231995 1765376 262 1992294400 134512640 135197250 4294956240 18446744073709551615 134718558 0 0 4096 0 0 0 0 17 1 0 0
/proc/13152/statm: 431 262 93 167 0 262 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1724

[startup+0.101086 s]
/proc/loadavg: 0.92 0.98 0.99 3/68 13152
/proc/meminfo: memFree=1299904/2055920 swapFree=4175244/4192956
[pid=13152] ppid=13150 vsize=1724 CPUtime=0.09
/proc/13152/stat : 13152 (march_nn) R 13150 13152 12924 0 -1 4194304 291 0 0 0 9 0 0 0 18 0 1 0 1103231995 1765376 274 1992294400 134512640 135197250 4294956240 18446744073709551615 134542026 0 0 4096 0 0 0 0 17 1 0 0
/proc/13152/statm: 431 274 93 167 0 262 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1724

[startup+0.301105 s]
/proc/loadavg: 0.92 0.98 0.99 3/68 13152
/proc/meminfo: memFree=1299904/2055920 swapFree=4175244/4192956
[pid=13152] ppid=13150 vsize=1860 CPUtime=0.29
/proc/13152/stat : 13152 (march_nn) R 13150 13152 12924 0 -1 4194304 303 0 0 0 29 0 0 0 19 0 1 0 1103231995 1904640 286 1992294400 134512640 135197250 4294956240 18446744073709551615 134542169 0 0 4096 0 0 0 0 17 1 0 0
/proc/13152/statm: 465 286 93 167 0 296 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1860

[startup+0.701145 s]
/proc/loadavg: 0.92 0.98 0.99 3/68 13152
/proc/meminfo: memFree=1299904/2055920 swapFree=4175244/4192956
[pid=13152] ppid=13150 vsize=1860 CPUtime=0.69
/proc/13152/stat : 13152 (march_nn) R 13150 13152 12924 0 -1 4194304 323 0 0 0 69 0 0 0 22 0 1 0 1103231995 1904640 306 1992294400 134512640 135197250 4294956240 18446744073709551615 134570755 0 0 4096 0 0 0 0 17 1 0 0
/proc/13152/statm: 465 306 93 167 0 296 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1860

[startup+1.50222 s]
/proc/loadavg: 0.92 0.98 0.99 2/69 13153
/proc/meminfo: memFree=1298936/2055920 swapFree=4175244/4192956
[pid=13152] ppid=13150 vsize=2048 CPUtime=1.5
/proc/13152/stat : 13152 (march_nn) R 13150 13152 12924 0 -1 4194304 352 0 0 0 150 0 0 0 25 0 1 0 1103231995 2097152 335 1992294400 134512640 135197250 4294956240 18446744073709551615 134617634 0 0 4096 0 0 0 0 17 1 0 0
/proc/13152/statm: 512 335 93 167 0 343 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 2048

[startup+3.10138 s]
/proc/loadavg: 0.92 0.98 0.99 2/69 13153
/proc/meminfo: memFree=1298680/2055920 swapFree=4175244/4192956
[pid=13152] ppid=13150 vsize=2516 CPUtime=3.09
/proc/13152/stat : 13152 (march_nn) R 13150 13152 12924 0 -1 4194304 438 0 0 0 309 0 0 0 25 0 1 0 1103231995 2576384 421 1992294400 134512640 135197250 4294956240 18446744073709551615 134592379 0 0 4096 0 0 0 0 17 1 0 0
/proc/13152/statm: 629 421 93 167 0 460 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2516

[startup+6.3017 s]
/proc/loadavg: 0.93 0.98 0.99 2/69 13153
/proc/meminfo: memFree=1298168/2055920 swapFree=4175244/4192956
[pid=13152] ppid=13150 vsize=2668 CPUtime=6.29
/proc/13152/stat : 13152 (march_nn) R 13150 13152 12924 0 -1 4194304 499 0 0 0 629 0 0 0 25 0 1 0 1103231995 2732032 482 1992294400 134512640 135197250 4294956240 18446744073709551615 134548451 0 0 4096 0 0 0 0 17 1 0 0
/proc/13152/statm: 667 482 93 167 0 498 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2668

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

[startup+6.40171 s]
/proc/loadavg: 0.93 0.98 0.99 2/69 13153
/proc/meminfo: memFree=1298168/2055920 swapFree=4175244/4192956
[pid=13152] ppid=13150 vsize=2668 CPUtime=6.39
/proc/13152/stat : 13152 (march_nn) R 13150 13152 12924 0 -1 4194304 500 0 0 0 639 0 0 0 25 0 1 0 1103231995 2732032 483 1992294400 134512640 135197250 4294956240 18446744073709551615 134617634 0 0 4096 0 0 0 0 17 1 0 0
/proc/13152/statm: 667 483 93 167 0 498 0
Current children cumulated CPU time (s) 6.39
Current children cumulated vsize (KiB) 2668

Child status: 10
Real time (s): 6.50063
CPU time (s): 6.49801
CPU user time (s): 6.49401
CPU system time (s): 0.003999
CPU usage (%): 99.9597
Max. virtual memory (cumulated for all children) (KiB): 2668

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.49401
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 518
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= 9

runsolver used 0.006998 second user time and 0.026995 second system time

The end

Launcher Data 

Begin job on node60 at 2009-03-29 07:48:24
IDJOB=1518890
IDBENCH=70717
IDSOLVER=522
FILE ID=node60/1518890-1238305704
PBS_JOBID= 9061074
Free space on /tmp= 66404 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/480/unif-k3-r4.25-v480-c2040-S1002348653-090.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1518890-1238305704/watcher-1518890-1238305704 -o /tmp/evaluation-result-1518890-1238305704/solver-1518890-1238305704 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1518890-1238305704.cnf

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

MD5SUM BENCH= c369517cece9ac5de13f6444259c5dd0
RANDOM SEED=112293744

node60.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		: 3000.202
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		: 3000.202
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:       1300320 kB
Buffers:         84216 kB
Cached:         582544 kB
SwapCached:      10996 kB
Active:         214220 kB
Inactive:       465628 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1300320 kB
SwapTotal:     4192956 kB
SwapFree:      4175244 kB
Dirty:             796 kB
Writeback:           0 kB
Mapped:          18440 kB
Slab:            61288 kB
Committed_AS:  3206892 kB
PageTables:       1712 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= 66404 MiB
End job on node60 at 2009-03-29 07:48:31