Trace number 1518602

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 0.702892 0.70327

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/400/
unif-k3-r4.25-v400-c1700-S1326039470-063.cnf
MD5SUM2e40295bba29f3b31b5d5a615b1b160f
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 variables400
Number of clauses1700
Sum of the clauses size5100
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31700
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 400 variables and 1700 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 400 free variables and 1700 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.451
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 149 duplicate clauses
0.00/0.01	c resolvent_look() :: found 90 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 400 variables and 1790 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 400 variabels and 1790 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1790 / 400 ) = 4.47
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 = 400
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: 23
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: 280
0.06/0.09	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |*****************************************
c |******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 2/999) NodeCount: 1969
0.59/0.64	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |*********
c |**********
c |************
c |*************
c |**************
c |***************
0.59/0.70	c |11000000000000001000000000000000000$$$$$$$$$$$$$$$$$$$$$$$$$$$$|
0.59/0.70	
c |***************
0.69/0.70	c
0.69/0.70	c main():: nodeCount: 2174
0.69/0.70	c main():: dead ends in main: 12
0.69/0.70	c main():: lookAheadCount: 178292
0.69/0.70	c main():: unitResolveCount: 13070
0.69/0.70	c main():: time=0.700000
0.69/0.70	c main():: necessary_assignments: 317
0.69/0.70	c main():: bin_sat: 0, bin_unsat 0
0.69/0.70	c main():: doublelook: #: 4771, succes #: 2088
0.69/0.70	c main():: doublelook: overall 2.703 of all possible doublelooks executed
0.69/0.70	c main():: doublelook: succesrate: 43.764, average DL_trigger: 48.333
0.69/0.70	c main():: SOLUTION VERIFIED :-)
0.69/0.70	s SATISFIABLE
0.69/0.70	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 62 -63 -64 -65 -66 67 68 69 -70 -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 -99 101 102 -103 -104 105 -106 -107 108 -109 -110 -111 113 -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 -139 141 142 -143 144 145 146 147 148 -149 150 -151 -152 153 -154 -155 -156 -157 158 -159 160 -161 162 164 165 166 -167 168 -169 170 -171 172 -173 174 -175 -176 -177 -178 -179 180 -181 -182 -183 -184 185 -186 187 -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 -287 289 290 291 -292 293 -294 -295 -296 -298 299 300 -301 302 -303 304 -305 -306 307 -308 -309 310 311 312 313 314 315 316 317 318 319 321 322 323 324 -326 327 328 329 330 -331 -332 333 334 336 -337 -338 -339 341 -342 -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 -384 -385 386 387 388 -389 390 391 -392 393 -394 395 -396 -397 398 399 -400 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-1518602-1238301797/watcher-1518602-1238301797 -o /tmp/evaluation-result-1518602-1238301797/solver-1518602-1238301797 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1518602-1238301797.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: 0.99 0.97 0.98 3/64 32148
/proc/meminfo: memFree=821472/2055920 swapFree=4177928/4192956
[pid=32148] ppid=32146 vsize=976 CPUtime=0
/proc/32148/stat : 32148 (march_nn) R 32146 32148 31995 0 -1 4194304 137 0 0 0 0 0 0 0 18 0 1 0 1102846033 999424 120 1992294400 134512640 135197250 4294956240 18446744073709551615 134694765 0 0 4096 0 0 0 0 17 1 0 0
/proc/32148/statm: 244 120 66 167 0 75 0

[startup+0.0636161 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 32148
/proc/meminfo: memFree=821472/2055920 swapFree=4177928/4192956
[pid=32148] ppid=32146 vsize=1556 CPUtime=0.06
/proc/32148/stat : 32148 (march_nn) R 32146 32148 31995 0 -1 4194304 253 0 0 0 6 0 0 0 18 0 1 0 1102846033 1593344 236 1992294400 134512640 135197250 4294956240 18446744073709551615 134542037 0 0 4096 0 0 0 0 17 1 0 0
/proc/32148/statm: 389 236 93 167 0 220 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1556

[startup+0.102625 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 32148
/proc/meminfo: memFree=821472/2055920 swapFree=4177928/4192956
[pid=32148] ppid=32146 vsize=1556 CPUtime=0.09
/proc/32148/stat : 32148 (march_nn) R 32146 32148 31995 0 -1 4194304 256 0 0 0 9 0 0 0 18 0 1 0 1102846033 1593344 239 1992294400 134512640 135197250 4294956240 18446744073709551615 134525272 0 0 4096 0 0 0 0 17 1 0 0
/proc/32148/statm: 389 239 93 167 0 220 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1556

[startup+0.301666 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 32148
/proc/meminfo: memFree=821472/2055920 swapFree=4177928/4192956
[pid=32148] ppid=32146 vsize=1688 CPUtime=0.29
/proc/32148/stat : 32148 (march_nn) R 32146 32148 31995 0 -1 4194304 273 0 0 0 29 0 0 0 19 0 1 0 1102846033 1728512 256 1992294400 134512640 135197250 4294956240 18446744073709551615 134542026 0 0 4096 0 0 0 0 17 1 0 0
/proc/32148/statm: 422 256 93 167 0 253 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1688

[startup+0.702765 s]
/proc/loadavg: 0.99 0.97 0.98 3/64 32148
/proc/meminfo: memFree=821472/2055920 swapFree=4177928/4192956
[pid=32148] ppid=32146 vsize=1688 CPUtime=0.69
/proc/32148/stat : 32148 (march_nn) R 32146 32148 31995 0 -1 4194304 297 0 0 0 69 0 0 0 23 0 1 0 1102846033 1728512 280 1992294400 134512640 135197250 4294956240 18446744073709551615 134589101 0 0 4096 0 0 0 0 17 1 0 0
/proc/32148/statm: 422 281 95 167 0 253 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1688

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

Child status: 10
Real time (s): 0.70327
CPU time (s): 0.702892
CPU user time (s): 0.700893
CPU system time (s): 0.001999
CPU usage (%): 99.9463
Max. virtual memory (cumulated for all children) (KiB): 1688

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.700893
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= 299
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= 2

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node10 at 2009-03-29 06:43:17
IDJOB=1518602
IDBENCH=70693
IDSOLVER=522
FILE ID=node10/1518602-1238301797
PBS_JOBID= 9061063
Free space on /tmp= 65604 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/400/unif-k3-r4.25-v400-c1700-S1326039470-063.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1518602-1238301797/watcher-1518602-1238301797 -o /tmp/evaluation-result-1518602-1238301797/solver-1518602-1238301797 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1518602-1238301797.cnf

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

MD5SUM BENCH= 2e40295bba29f3b31b5d5a615b1b160f
RANDOM SEED=142199763

node10.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		: 3000.272
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		: 3000.272
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:        821888 kB
Buffers:         99116 kB
Cached:        1034592 kB
SwapCached:       8896 kB
Active:         267032 kB
Inactive:       877632 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        821888 kB
SwapTotal:     4192956 kB
SwapFree:      4177928 kB
Dirty:             796 kB
Writeback:           0 kB
Mapped:          16596 kB
Slab:            75388 kB
Committed_AS:  2790028 kB
PageTables:       1380 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= 65604 MiB
End job on node10 at 2009-03-29 06:43:18