Trace number 1519238

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 2.12668 2.12875

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/360/
unif-k3-r4.25-v360-c1530-S1459690542-033.cnf
MD5SUMc06f037558f89bd433f3640c2e148f97
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.006998
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1530
Sum of the clauses size4590
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31530
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 360 variables and 1530 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 360 free variables and 1530 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.528
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 96 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1626 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 360 variabels and 1626 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1626 / 360 ) = 4.52
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 = 360
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: 21
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: 231
0.03/0.07	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: 1385
0.39/0.43	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: 5147
1.79/1.85	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |*****
c |******
c |*******
c |********
c |*********
c |**********
c |***********
c |************
c |*************
c |**************
c |***************
2.09/2.12	c |1100000000010000000001000000000000$$$$$$$$$$$$$$$$$$$$$$$$$$$$$|
2.09/2.12	
c |***************
2.09/2.12	c
2.09/2.12	c main():: nodeCount: 5830
2.09/2.12	c main():: dead ends in main: 76
2.09/2.12	c main():: lookAheadCount: 479146
2.09/2.12	c main():: unitResolveCount: 48293
2.09/2.12	c main():: time=2.120000
2.09/2.12	c main():: necessary_assignments: 1053
2.09/2.12	c main():: bin_sat: 0, bin_unsat 0
2.09/2.12	c main():: doublelook: #: 16321, succes #: 9131
2.09/2.12	c main():: doublelook: overall 3.460 of all possible doublelooks executed
2.09/2.12	c main():: doublelook: succesrate: 55.946, average DL_trigger: 46.811
2.09/2.12	c main():: SOLUTION VERIFIED :-)
2.09/2.12	s SATISFIABLE
2.09/2.12	v -1 2 -3 4 -5 6 7 -8 -10 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 39 -40 41 42 -43 45 -46 -47 48 49 -50 51 -52 53 54 -56 -58 -59 -60 -61 -62 63 65 66 67 68 70 -71 -72 73 -74 -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 -114 -115 116 117 118 119 -120 121 122 123 125 -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 -165 166 167 -168 -169 -170 -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 -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 -252 253 255 -256 -257 -259 260 -261 262 -263 264 -265 -267 -268 269 -270 271 272 273 274 275 -276 -277 278 279 280 281 -282 -283 -284 -285 -286 288 -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 -314 316 -317 318 319 -320 321 -322 -323 -324 -325 326 -327 -328 -329 330 -331 -332 -333 -334 336 337 338 339 -340 341 342 -343 -344 -345 -346 347 -349 350 351 352 353 354 355 356 357 -358 -359 360 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-1519238-1238309192/watcher-1519238-1238309192 -o /tmp/evaluation-result-1519238-1238309192/solver-1519238-1238309192 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1519238-1238309192.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: 1.00 1.00 1.00 3/64 9498
/proc/meminfo: memFree=1817552/2055920 swapFree=4178768/4192956
[pid=9498] ppid=9496 vsize=972 CPUtime=0
/proc/9498/stat : 9498 (march_nn) R 9496 9498 9079 0 -1 4194304 135 0 0 0 0 0 0 0 18 0 1 0 1103585460 995328 118 1992294400 134512640 135197250 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/9498/statm: 243 118 67 167 0 74 0

[startup+0.033815 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 9498
/proc/meminfo: memFree=1817552/2055920 swapFree=4178768/4192956
[pid=9498] ppid=9496 vsize=1508 CPUtime=0.03
/proc/9498/stat : 9498 (march_nn) R 9496 9498 9079 0 -1 4194304 232 0 0 0 3 0 0 0 18 0 1 0 1103585460 1544192 215 1992294400 134512640 135197250 4294956240 18446744073709551615 134541930 0 0 4096 0 0 0 0 17 1 0 0
/proc/9498/statm: 377 215 93 167 0 208 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1508

[startup+0.101827 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 9498
/proc/meminfo: memFree=1817552/2055920 swapFree=4178768/4192956
[pid=9498] ppid=9496 vsize=1508 CPUtime=0.09
/proc/9498/stat : 9498 (march_nn) R 9496 9498 9079 0 -1 4194304 249 0 0 0 9 0 0 0 18 0 1 0 1103585460 1544192 232 1992294400 134512640 135197250 4294956240 18446744073709551615 134713087 0 0 4096 0 0 0 0 17 1 0 0
/proc/9498/statm: 377 232 93 167 0 208 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1508

[startup+0.301862 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 9498
/proc/meminfo: memFree=1817552/2055920 swapFree=4178768/4192956
[pid=9498] ppid=9496 vsize=1640 CPUtime=0.29
/proc/9498/stat : 9498 (march_nn) R 9496 9498 9079 0 -1 4194304 261 0 0 0 29 0 0 0 19 0 1 0 1103585460 1679360 244 1992294400 134512640 135197250 4294956240 18446744073709551615 134539354 0 0 4096 0 0 0 0 17 1 0 0
/proc/9498/statm: 410 244 93 167 0 241 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1640

[startup+0.701934 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 9498
/proc/meminfo: memFree=1817552/2055920 swapFree=4178768/4192956
[pid=9498] ppid=9496 vsize=1640 CPUtime=0.69
/proc/9498/stat : 9498 (march_nn) R 9496 9498 9079 0 -1 4194304 281 0 0 0 69 0 0 0 22 0 1 0 1103585460 1679360 264 1992294400 134512640 135197250 4294956240 18446744073709551615 134525291 0 0 4096 0 0 0 0 17 1 0 0
/proc/9498/statm: 410 264 93 167 0 241 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1640

[startup+1.50108 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 9499
/proc/meminfo: memFree=1816712/2055920 swapFree=4178768/4192956
[pid=9498] ppid=9496 vsize=1820 CPUtime=1.49
/proc/9498/stat : 9498 (march_nn) R 9496 9498 9079 0 -1 4194304 311 0 0 0 149 0 0 0 25 0 1 0 1103585460 1863680 294 1992294400 134512640 135197250 4294956240 18446744073709551615 134525291 0 0 4096 0 0 0 0 17 1 0 0
/proc/9498/statm: 455 294 93 167 0 286 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1820

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

[startup+1.90115 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 9499
/proc/meminfo: memFree=1816712/2055920 swapFree=4178768/4192956
[pid=9498] ppid=9496 vsize=1820 CPUtime=1.89
/proc/9498/stat : 9498 (march_nn) R 9496 9498 9079 0 -1 4194304 316 0 0 0 189 0 0 0 25 0 1 0 1103585460 1863680 299 1992294400 134512640 135197250 4294956240 18446744073709551615 134611682 0 0 4096 0 0 0 0 17 1 0 0
/proc/9498/statm: 455 299 93 167 0 286 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 1820

[startup+2.10118 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 9499
/proc/meminfo: memFree=1816520/2055920 swapFree=4178768/4192956
[pid=9498] ppid=9496 vsize=1820 CPUtime=2.09
/proc/9498/stat : 9498 (march_nn) R 9496 9498 9079 0 -1 4194304 319 0 0 0 209 0 0 0 25 0 1 0 1103585460 1863680 302 1992294400 134512640 135197250 4294956240 18446744073709551615 134539314 0 0 4096 0 0 0 0 17 1 0 0
/proc/9498/statm: 455 302 93 167 0 286 0
Current children cumulated CPU time (s) 2.09
Current children cumulated vsize (KiB) 1820

Child status: 10
Real time (s): 2.12875
CPU time (s): 2.12668
CPU user time (s): 2.12068
CPU system time (s): 0.005999
CPU usage (%): 99.9027
Max. virtual memory (cumulated for all children) (KiB): 1820

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.12068
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 325
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= 29

runsolver used 0.005999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node12 at 2009-03-29 08:46:32
IDJOB=1519238
IDBENCH=70746
IDSOLVER=522
FILE ID=node12/1519238-1238309192
PBS_JOBID= 9061077
Free space on /tmp= 65380 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/360/unif-k3-r4.25-v360-c1530-S1459690542-033.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1519238-1238309192/watcher-1519238-1238309192 -o /tmp/evaluation-result-1519238-1238309192/solver-1519238-1238309192 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1519238-1238309192.cnf

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

MD5SUM BENCH= c06f037558f89bd433f3640c2e148f97
RANDOM SEED=1911157940

node12.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		: 3000.266
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		: 3000.266
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:       1817968 kB
Buffers:         49744 kB
Cached:         113952 kB
SwapCached:       7936 kB
Active:          96640 kB
Inactive:        76384 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1817968 kB
SwapTotal:     4192956 kB
SwapFree:      4178768 kB
Dirty:             948 kB
Writeback:           0 kB
Mapped:          15012 kB
Slab:            50916 kB
Committed_AS:  2979272 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= 65380 MiB
End job on node12 at 2009-03-29 08:46:34