Trace number 1518542

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 6.577 6.57991

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/400/
unif-k3-r4.25-v400-c1700-S2032726331-082.cnf
MD5SUM978a693c176682b07f74cd4acf1b2ac2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012997
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, 32 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 395 free variables and 1668 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.468
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 176 duplicate clauses
0.00/0.01	c resolvent_look() :: found 92 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 400 variables and 1760 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 1760 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1760 / 400 ) = 4.40
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 = 395
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: 22
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: 264
0.00/0.08	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: 1886
0.49/0.55	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 |***************************************************************
c |****************************************************************| ( 3/999) NodeCount: 8813
2.89/2.94	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 |***********************************************
6.49/6.57	c |0100000000110010000000000000000000000000$$$$$$$$$$$$$$$$$$$$$$$|
6.49/6.57	
c |***********************************************
6.49/6.57	c
6.49/6.57	c main():: nodeCount: 18434
6.49/6.57	c main():: dead ends in main: 141
6.49/6.57	c main():: lookAheadCount: 1382783
6.49/6.57	c main():: unitResolveCount: 146467
6.49/6.57	c main():: time=6.570000
6.49/6.57	c main():: necessary_assignments: 2752
6.49/6.57	c main():: bin_sat: 0, bin_unsat 0
6.49/6.57	c main():: doublelook: #: 51570, succes #: 28614
6.49/6.57	c main():: doublelook: overall 3.791 of all possible doublelooks executed
6.49/6.57	c main():: doublelook: succesrate: 55.486, average DL_trigger: 47.916
6.49/6.57	c main():: SOLUTION VERIFIED :-)
6.49/6.57	s SATISFIABLE
6.49/6.57	v 1 -2 -3 -4 5 6 -7 -8 9 -10 -11 -12 -13 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 59 -60 -61 62 63 -64 66 67 -68 -69 70 71 72 -73 -74 75 76 77 -78 79 81 -82 83 84 -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 -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 -152 154 155 156 157 158 -159 160 161 -162 -163 -164 -165 -166 167 -168 169 170 -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 -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 -228 229 -230 231 232 233 234 235 236 237 -238 239 240 242 -243 244 245 247 248 249 -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 -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 -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 -354 355 358 -359 360 361 362 -363 364 365 368 369 -370 371 372 -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 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-1518542-1238301146/watcher-1518542-1238301146 -o /tmp/evaluation-result-1518542-1238301146/solver-1518542-1238301146 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1518542-1238301146.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 0.99 3/64 25473
/proc/meminfo: memFree=1662968/2055920 swapFree=4178884/4192956
[pid=25473] ppid=25471 vsize=976 CPUtime=0
/proc/25473/stat : 25473 (march_nn) R 25471 25473 25408 0 -1 4194304 138 0 0 0 0 0 0 0 20 0 1 0 1102778303 999424 121 1992294400 134512640 135197250 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/25473/statm: 244 121 67 167 0 75 0

[startup+0.093903 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 25473
/proc/meminfo: memFree=1662968/2055920 swapFree=4178884/4192956
[pid=25473] ppid=25471 vsize=1556 CPUtime=0.09
/proc/25473/stat : 25473 (march_nn) R 25471 25473 25408 0 -1 4194304 257 0 0 0 9 0 0 0 20 0 1 0 1102778303 1593344 240 1992294400 134512640 135197250 4294956240 18446744073709551615 134718558 0 0 4096 0 0 0 0 17 1 0 0
/proc/25473/statm: 389 240 93 167 0 220 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1556

[startup+0.101905 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 25473
/proc/meminfo: memFree=1662968/2055920 swapFree=4178884/4192956
[pid=25473] ppid=25471 vsize=1556 CPUtime=0.09
/proc/25473/stat : 25473 (march_nn) R 25471 25473 25408 0 -1 4194304 261 0 0 0 9 0 0 0 20 0 1 0 1102778303 1593344 244 1992294400 134512640 135197250 4294956240 18446744073709551615 134597693 0 0 4096 0 0 0 0 17 1 0 0
/proc/25473/statm: 389 244 93 167 0 220 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1556

[startup+0.301944 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 25473
/proc/meminfo: memFree=1662968/2055920 swapFree=4178884/4192956
[pid=25473] ppid=25471 vsize=1708 CPUtime=0.29
/proc/25473/stat : 25473 (march_nn) R 25471 25473 25408 0 -1 4194304 271 0 0 0 29 0 0 0 22 0 1 0 1102778303 1748992 254 1992294400 134512640 135197250 4294956240 18446744073709551615 134593933 0 0 4096 0 0 0 0 17 1 0 0
/proc/25473/statm: 427 254 93 167 0 258 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1708

[startup+0.702023 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 25473
/proc/meminfo: memFree=1662968/2055920 swapFree=4178884/4192956
[pid=25473] ppid=25471 vsize=1708 CPUtime=0.69
/proc/25473/stat : 25473 (march_nn) R 25471 25473 25408 0 -1 4194304 294 0 0 0 69 0 0 0 25 0 1 0 1102778303 1748992 277 1992294400 134512640 135197250 4294956240 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 1 0 0
/proc/25473/statm: 427 277 93 167 0 258 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1708

[startup+1.50118 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 25474
/proc/meminfo: memFree=1662192/2055920 swapFree=4178884/4192956
[pid=25473] ppid=25471 vsize=1976 CPUtime=1.49
/proc/25473/stat : 25473 (march_nn) R 25471 25473 25408 0 -1 4194304 337 0 0 0 149 0 0 0 25 0 1 0 1102778303 2023424 320 1992294400 134512640 135197250 4294956240 18446744073709551615 134525423 0 0 4096 0 0 0 0 17 1 0 0
/proc/25473/statm: 494 320 93 167 0 325 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1976

[startup+3.1015 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 25474
/proc/meminfo: memFree=1661872/2055920 swapFree=4178884/4192956
[pid=25473] ppid=25471 vsize=2144 CPUtime=3.09
/proc/25473/stat : 25473 (march_nn) R 25471 25473 25408 0 -1 4194304 374 0 0 0 309 0 0 0 25 0 1 0 1102778303 2195456 357 1992294400 134512640 135197250 4294956240 18446744073709551615 134572898 0 0 4096 0 0 0 0 17 1 0 0
/proc/25473/statm: 536 357 93 167 0 367 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2144

[startup+6.30113 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 25474
/proc/meminfo: memFree=1661552/2055920 swapFree=4178884/4192956
[pid=25473] ppid=25471 vsize=2472 CPUtime=6.29
/proc/25473/stat : 25473 (march_nn) R 25471 25473 25408 0 -1 4194304 458 0 0 0 629 0 0 0 25 0 1 0 1102778303 2531328 441 1992294400 134512640 135197250 4294956240 18446744073709551615 134570822 0 0 4096 0 0 0 0 17 1 0 0
/proc/25473/statm: 618 441 93 167 0 449 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2472

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

[startup+6.50117 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 25474
/proc/meminfo: memFree=1661360/2055920 swapFree=4178884/4192956
[pid=25473] ppid=25471 vsize=2472 CPUtime=6.49
/proc/25473/stat : 25473 (march_nn) R 25471 25473 25408 0 -1 4194304 462 0 0 0 649 0 0 0 25 0 1 0 1102778303 2531328 445 1992294400 134512640 135197250 4294956240 18446744073709551615 134542045 0 0 4096 0 0 0 0 17 1 0 0
/proc/25473/statm: 618 445 93 167 0 449 0
Current children cumulated CPU time (s) 6.49
Current children cumulated vsize (KiB) 2472

Child status: 10
Real time (s): 6.57991
CPU time (s): 6.577
CPU user time (s): 6.574
CPU system time (s): 0.002999
CPU usage (%): 99.9558
Max. virtual memory (cumulated for all children) (KiB): 2472

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.574
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 472
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 0.024996 second system time

The end

Launcher Data 

Begin job on node75 at 2009-03-29 06:32:26
IDJOB=1518542
IDBENCH=70688
IDSOLVER=522
FILE ID=node75/1518542-1238301146
PBS_JOBID= 9061094
Free space on /tmp= 64928 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/400/unif-k3-r4.25-v400-c1700-S2032726331-082.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1518542-1238301146/watcher-1518542-1238301146 -o /tmp/evaluation-result-1518542-1238301146/solver-1518542-1238301146 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1518542-1238301146.cnf

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

MD5SUM BENCH= 978a693c176682b07f74cd4acf1b2ac2
RANDOM SEED=1695944747

node75.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		: 3000.263
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		: 3000.263
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:       1663448 kB
Buffers:         71756 kB
Cached:         236648 kB
SwapCached:       8136 kB
Active:         207028 kB
Inactive:       111008 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1663448 kB
SwapTotal:     4192956 kB
SwapFree:      4178884 kB
Dirty:             800 kB
Writeback:           0 kB
Mapped:          15340 kB
Slab:            60396 kB
Committed_AS:  2256912 kB
PageTables:       1420 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= 64928 MiB
End job on node75 at 2009-03-29 06:32:32