Trace number 1519154

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 1.76173 1.76273

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/380/
unif-k3-r4.25-v380-c1615-S326477539-068.cnf
MD5SUM5041825f960f1b265cdeb6a449c6172e
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 variables380
Number of clauses1615
Sum of the clauses size4845
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31615
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 380 variables and 1615 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, 33 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 376 free variables and 1582 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.464
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 150 duplicate clauses
0.00/0.01	c resolvent_look() :: found 80 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 380 variables and 1662 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 380 variabels and 1662 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1662 / 380 ) = 4.37
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 = 376
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: 25
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: 307
0.05/0.08	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: 2127
0.59/0.61	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 |*******************************************************
1.69/1.76	c |0010001000000000000000000000000000010000000000000$$$$$$$$$$$$$$|
1.69/1.76	
c |*******************************************************
1.69/1.76	c
1.69/1.76	c main():: nodeCount: 5912
1.69/1.76	c main():: dead ends in main: 49
1.69/1.76	c main():: lookAheadCount: 457457
1.69/1.76	c main():: unitResolveCount: 39597
1.69/1.76	c main():: time=1.750000
1.69/1.76	c main():: necessary_assignments: 807
1.69/1.76	c main():: bin_sat: 0, bin_unsat 0
1.69/1.76	c main():: doublelook: #: 14127, succes #: 6738
1.69/1.76	c main():: doublelook: overall 3.126 of all possible doublelooks executed
1.69/1.76	c main():: doublelook: succesrate: 47.696, average DL_trigger: 44.589
1.69/1.76	c main():: SOLUTION VERIFIED :-)
1.69/1.76	s SATISFIABLE
1.69/1.76	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 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 -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 92 93 94 95 -96 97 -98 99 100 101 102 -103 104 105 106 107 -108 109 110 -111 -112 -113 116 117 -118 -119 -120 -121 123 -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 -160 162 163 -165 166 -167 -168 169 -170 -171 -172 173 174 175 176 177 -178 -180 -181 182 183 -184 185 -186 -187 188 -189 190 -191 192 -193 -194 -195 196 -197 -198 199 200 201 202 203 204 206 -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 -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 -286 287 288 -289 290 291 -292 -293 -294 -295 -296 -297 298 299 300 301 -302 -303 -304 305 -307 -308 309 310 311 312 313 314 316 -317 318 319 320 321 322 -323 -324 325 -326 327 -328 -329 330 332 333 334 -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 -364 366 367 368 -369 -370 -371 373 -374 -375 -376 377 -378 -379 380 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-1519154-1238308684/watcher-1519154-1238308684 -o /tmp/evaluation-result-1519154-1238308684/solver-1519154-1238308684 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1519154-1238308684.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 2/76 29008
/proc/meminfo: memFree=1244888/2055920 swapFree=4127428/4192956
[pid=29008] ppid=29006 vsize=972 CPUtime=0
/proc/29008/stat : 29008 (march_nn) R 29006 29008 28629 0 -1 4194304 139 0 0 0 0 0 0 0 18 0 1 0 1103529365 995328 122 1992294400 134512640 135197250 4294956240 18446744073709551615 134528032 0 0 4096 0 0 0 0 17 1 0 0
/proc/29008/statm: 243 122 68 167 0 74 0

[startup+0.058802 s]
/proc/loadavg: 0.99 0.97 0.98 2/76 29008
/proc/meminfo: memFree=1244888/2055920 swapFree=4127428/4192956
[pid=29008] ppid=29006 vsize=1536 CPUtime=0.05
/proc/29008/stat : 29008 (march_nn) R 29006 29008 28629 0 -1 4194304 248 0 0 0 5 0 0 0 18 0 1 0 1103529365 1572864 231 1992294400 134512640 135197250 4294956240 18446744073709551615 134541916 0 0 4096 0 0 0 0 17 1 0 0
/proc/29008/statm: 384 231 93 167 0 215 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1536

[startup+0.102811 s]
/proc/loadavg: 0.99 0.97 0.98 2/76 29008
/proc/meminfo: memFree=1244888/2055920 swapFree=4127428/4192956
[pid=29008] ppid=29006 vsize=1536 CPUtime=0.1
/proc/29008/stat : 29008 (march_nn) R 29006 29008 28629 0 -1 4194304 256 0 0 0 10 0 0 0 18 0 1 0 1103529365 1572864 239 1992294400 134512640 135197250 4294956240 18446744073709551615 134649028 0 0 4096 0 0 0 0 17 1 0 0
/proc/29008/statm: 384 239 93 167 0 215 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1536

[startup+0.302849 s]
/proc/loadavg: 0.99 0.97 0.98 2/76 29008
/proc/meminfo: memFree=1244888/2055920 swapFree=4127428/4192956
[pid=29008] ppid=29006 vsize=1668 CPUtime=0.3
/proc/29008/stat : 29008 (march_nn) R 29006 29008 28629 0 -1 4194304 282 0 0 0 30 0 0 0 20 0 1 0 1103529365 1708032 265 1992294400 134512640 135197250 4294956240 18446744073709551615 134525344 0 0 4096 0 0 0 0 17 1 0 0
/proc/29008/statm: 417 265 93 167 0 248 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1668

[startup+0.701927 s]
/proc/loadavg: 0.99 0.97 0.98 2/76 29008
/proc/meminfo: memFree=1244888/2055920 swapFree=4127428/4192956
[pid=29008] ppid=29006 vsize=1668 CPUtime=0.69
/proc/29008/stat : 29008 (march_nn) R 29006 29008 28629 0 -1 4194304 293 0 0 0 69 0 0 0 23 0 1 0 1103529365 1708032 276 1992294400 134512640 135197250 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 1 0 0
/proc/29008/statm: 417 276 93 167 0 248 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1668

[startup+1.50108 s]
/proc/loadavg: 0.99 0.97 0.98 2/77 29009
/proc/meminfo: memFree=1243920/2055920 swapFree=4127428/4192956
[pid=29008] ppid=29006 vsize=1844 CPUtime=1.49
/proc/29008/stat : 29008 (march_nn) R 29006 29008 28629 0 -1 4194304 325 0 0 0 149 0 0 0 25 0 1 0 1103529365 1888256 308 1992294400 134512640 135197250 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/29008/statm: 461 308 93 167 0 292 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1844

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

[startup+1.70112 s]
/proc/loadavg: 0.99 0.97 0.98 2/77 29009
/proc/meminfo: memFree=1243920/2055920 swapFree=4127428/4192956
[pid=29008] ppid=29006 vsize=1844 CPUtime=1.69
/proc/29008/stat : 29008 (march_nn) R 29006 29008 28629 0 -1 4194304 328 0 0 0 169 0 0 0 25 0 1 0 1103529365 1888256 311 1992294400 134512640 135197250 4294956240 18446744073709551615 134649028 0 0 4096 0 0 0 0 17 1 0 0
/proc/29008/statm: 461 311 93 167 0 292 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 1844

Child status: 10
Real time (s): 1.76273
CPU time (s): 1.76173
CPU user time (s): 1.75873
CPU system time (s): 0.002999
CPU usage (%): 99.9434
Max. virtual memory (cumulated for all children) (KiB): 1844

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.75873
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= 341
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= 4
involuntary context switches= 7

runsolver used 0.007998 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node63 at 2009-03-29 08:38:04
IDJOB=1519154
IDBENCH=70739
IDSOLVER=522
FILE ID=node63/1519154-1238308684
PBS_JOBID= 9061065
Free space on /tmp= 66320 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/380/unif-k3-r4.25-v380-c1615-S326477539-068.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1519154-1238308684/watcher-1519154-1238308684 -o /tmp/evaluation-result-1519154-1238308684/solver-1519154-1238308684 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1519154-1238308684.cnf

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

MD5SUM BENCH= 5041825f960f1b265cdeb6a449c6172e
RANDOM SEED=404185461

node63.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		: 3000.285
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		: 3000.285
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:       1245304 kB
Buffers:         84360 kB
Cached:         588836 kB
SwapCached:      55900 kB
Active:         251300 kB
Inactive:       479348 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1245304 kB
SwapTotal:     4192956 kB
SwapFree:      4127428 kB
Dirty:             796 kB
Writeback:           0 kB
Mapped:          14636 kB
Slab:            64600 kB
Committed_AS:  3215360 kB
PageTables:       2312 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66320 MiB
End job on node63 at 2009-03-29 08:38:06