Trace number 1518254

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 0.393939 0.393036

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/420/
unif-k3-r4.25-v420-c1785-S1460100153-095.cnf
MD5SUM147f9c942ba89935aaa4b8c99ea683ac
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.010997
Satisfiable
(Un)Satisfiability was proved
Number of variables420
Number of clauses1785
Sum of the clauses size5355
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31785
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 420 variables and 1785 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 420 free variables and 1785 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.421
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 161 duplicate clauses
0.00/0.01	c resolvent_look() :: found 88 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 420 variables and 1873 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 420 variabels and 1873 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1873 / 420 ) = 4.46
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 = 420
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/999) NodeCount: 27
0.00/0.02	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: 374
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 |******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
0.29/0.39	c |00001000010000000000000000000000000000000000000000$$$$$$$$$$$$$|
0.29/0.39	
c |*************************************************************
0.29/0.39	c
0.29/0.39	c main():: nodeCount: 1340
0.29/0.39	c main():: dead ends in main: 5
0.29/0.39	c main():: lookAheadCount: 112067
0.29/0.39	c main():: unitResolveCount: 6517
0.29/0.39	c main():: time=0.390000
0.29/0.39	c main():: necessary_assignments: 123
0.29/0.39	c main():: bin_sat: 0, bin_unsat 0
0.29/0.39	c main():: doublelook: #: 2542, succes #: 927
0.29/0.39	c main():: doublelook: overall 2.281 of all possible doublelooks executed
0.29/0.39	c main():: doublelook: succesrate: 36.467, average DL_trigger: 45.650
0.29/0.39	c main():: SOLUTION VERIFIED :-)
0.29/0.39	s SATISFIABLE
0.29/0.39	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 -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 -112 114 115 -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 -161 162 163 164 165 167 168 169 170 -171 -172 173 174 -176 178 179 180 -181 182 184 -185 -186 187 188 -189 -190 191 -192 -193 194 195 196 -197 198 199 -200 -202 -203 204 -205 -206 -207 -208 -210 -211 -212 -213 -214 215 216 217 -218 219 220 -221 222 223 -224 -225 -227 -228 229 230 231 -232 233 -234 235 236 237 238 239 240 -241 242 -244 -245 246 247 248 -249 -250 -251 252 253 -254 -255 256 -257 258 260 261 -262 263 -264 265 266 -267 268 269 -270 -271 272 -273 -274 275 276 277 -278 -279 -280 -282 -283 -284 -285 286 -287 289 290 -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 -326 328 -329 330 331 332 -333 334 335 -336 337 -338 340 -341 342 -343 -344 -345 346 -347 -348 349 350 351 -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 -383 384 385 387 -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 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-1518254-1238297464/watcher-1518254-1238297464 -o /tmp/evaluation-result-1518254-1238297464/solver-1518254-1238297464 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1518254-1238297464.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: 0.91 0.98 0.99 3/64 6150
/proc/meminfo: memFree=878208/2055920 swapFree=4177704/4192956
[pid=6150] ppid=6148 vsize=984 CPUtime=0
/proc/6150/stat : 6150 (march_nn) R 6148 6150 2586 0 -1 4194304 140 0 0 0 0 0 0 0 18 0 1 0 1102412546 1007616 123 1992294400 134512640 135197250 4294956240 18446744073709551615 134713095 0 0 4096 0 0 0 0 17 1 0 0
/proc/6150/statm: 246 123 66 167 0 77 0

[startup+0.00828211 s]
/proc/loadavg: 0.91 0.98 0.99 3/64 6150
/proc/meminfo: memFree=878208/2055920 swapFree=4177704/4192956
[pid=6150] ppid=6148 vsize=984 CPUtime=0
/proc/6150/stat : 6150 (march_nn) R 6148 6150 2586 0 -1 4194304 154 0 0 0 0 0 0 0 18 0 1 0 1102412546 1007616 137 1992294400 134512640 135197250 4294956240 18446744073709551615 134534460 0 0 4096 0 0 0 0 17 1 0 0
/proc/6150/statm: 246 137 80 167 0 77 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 984

[startup+0.101299 s]
/proc/loadavg: 0.91 0.98 0.99 3/64 6150
/proc/meminfo: memFree=878208/2055920 swapFree=4177704/4192956
[pid=6150] ppid=6148 vsize=1580 CPUtime=0.09
/proc/6150/stat : 6150 (march_nn) R 6148 6150 2586 0 -1 4194304 272 0 0 0 9 0 0 0 18 0 1 0 1102412546 1617920 255 1992294400 134512640 135197250 4294956240 18446744073709551615 134713087 0 0 4096 0 0 0 0 17 1 0 0
/proc/6150/statm: 395 255 93 167 0 226 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1580

[startup+0.301335 s]
/proc/loadavg: 0.91 0.98 0.99 3/64 6150
/proc/meminfo: memFree=878208/2055920 swapFree=4177704/4192956
[pid=6150] ppid=6148 vsize=1712 CPUtime=0.29
/proc/6150/stat : 6150 (march_nn) R 6148 6150 2586 0 -1 4194304 284 0 0 0 29 0 0 0 19 0 1 0 1102412546 1753088 267 1992294400 134512640 135197250 4294956240 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 1 0 0
/proc/6150/statm: 428 267 93 167 0 259 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1712

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

Child status: 10
Real time (s): 0.393036
CPU time (s): 0.393939
CPU user time (s): 0.39194
CPU system time (s): 0.001999
CPU usage (%): 100.23
Max. virtual memory (cumulated for all children) (KiB): 1712

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.39194
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= 314
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= 1

runsolver used 0.001999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node24 at 2009-03-29 05:31:04
IDJOB=1518254
IDBENCH=70664
IDSOLVER=522
FILE ID=node24/1518254-1238297464
PBS_JOBID= 9060957
Free space on /tmp= 65752 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/420/unif-k3-r4.25-v420-c1785-S1460100153-095.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1518254-1238297464/watcher-1518254-1238297464 -o /tmp/evaluation-result-1518254-1238297464/solver-1518254-1238297464 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1518254-1238297464.cnf

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

MD5SUM BENCH= 147f9c942ba89935aaa4b8c99ea683ac
RANDOM SEED=129027459

node24.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		: 3000.260
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		: 3000.260
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:        878624 kB
Buffers:         95352 kB
Cached:         979400 kB
SwapCached:       9032 kB
Active:         118000 kB
Inactive:       967300 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        878624 kB
SwapTotal:     4192956 kB
SwapFree:      4177704 kB
Dirty:             808 kB
Writeback:           0 kB
Mapped:          16140 kB
Slab:            77908 kB
Committed_AS:  3109832 kB
PageTables:       1448 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= 65752 MiB
End job on node24 at 2009-03-29 05:31:05