Trace number 1545022

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
SAT07 reference solver: March KS 2007-02-08SAT 2.32865 2.32936

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/380/
unif-k3-r4.25-v380-c1615-S486002104-037.cnf
MD5SUMf4b8d839b40ecfc6d6fa55a34f75fca9
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.009997
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) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
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, 2 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 379 free variables and 1613 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.465
0.00/0.01	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.00/0.01	c using 3-SAT heuristics (occurence based diff)
0.00/0.01	c longest clause has size 3
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 188 duplicate clauses
0.00/0.01	c resolvent_look() :: found 115 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 380 variables and 1728 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 1728 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1728 / 380 ) = 4.55
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 dynamic_preselect_setsize :: off
0.00/0.01	c suggested doublelook initial :: 0
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 133 JD: 16
0.05/0.06	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| 1 NC: 1796 JD: 16
0.70/0.75	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 |***************************************************************
2.29/2.32	c solution bin :: 0000000110000000.0101010000000000
2.29/2.32	c direction branchin :: current_rights = 5
2.29/2.32	
c |***************************************************************
2.29/2.32	c
2.29/2.32	c main():: nodeCount: 5754
2.29/2.32	c main():: dead ends in main: 229
2.29/2.32	c main():: lookAheadCount: 387160
2.29/2.32	c main():: unitResolveCount: 75554
2.29/2.32	c main():: time=2.320000
2.29/2.32	c main():: necessary_assignments: 1588
2.29/2.32	c main():: bin_sat: 0, bin_unsat 0
2.29/2.32	c main():: doublelook: #: 22153, succes #: 16197
2.29/2.32	c main():: doublelook: overall 5.942 of all possible doublelooks executed
2.29/2.32	c main():: doublelook: succesrate: 73.114, average DL_trigger: 6174.449
2.29/2.32	c main():: SOLUTION VERIFIED :-)
2.29/2.32	s SATISFIABLE
2.29/2.32	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 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 -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 -139 140 -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 -168 169 170 171 -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 -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 -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 -355 356 357 358 -359 -360 -361 362 363 364 -365 366 -367 -368 -369 370 -371 -372 -373 374 -375 -376 377 -378 379 380 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1545022-1238615065/watcher-1545022-1238615065 -o /tmp/evaluation-result-1545022-1238615065/solver-1545022-1238615065 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1545022-1238615065.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 0.96 3/65 6792
/proc/meminfo: memFree=1568736/2055920 swapFree=4178736/4192956
[pid=6792] ppid=6790 vsize=792 CPUtime=0
/proc/6792/stat : 6792 (march_ks) R 6790 6792 6372 0 -1 4194304 122 0 0 0 0 0 0 0 18 0 1 0 487840358 811008 105 1992294400 134512640 135019032 4294956240 18446744073709551615 134554770 0 0 4096 0 0 0 0 17 0 0 0
/proc/6792/statm: 198 105 52 123 0 73 0

[startup+0.056806 s]
/proc/loadavg: 1.00 1.00 0.96 3/65 6792
/proc/meminfo: memFree=1568736/2055920 swapFree=4178736/4192956
[pid=6792] ppid=6790 vsize=1188 CPUtime=0.05
/proc/6792/stat : 6792 (march_ks) R 6790 6792 6372 0 -1 4194304 235 0 0 0 5 0 0 0 18 0 1 0 487840358 1216512 218 1992294400 134512640 135019032 4294956240 18446744073709551615 134542537 0 0 4096 0 0 0 0 17 0 0 0
/proc/6792/statm: 297 218 73 123 0 172 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1188

[startup+0.101809 s]
/proc/loadavg: 1.00 1.00 0.96 3/65 6792
/proc/meminfo: memFree=1568736/2055920 swapFree=4178736/4192956
[pid=6792] ppid=6790 vsize=1188 CPUtime=0.1
/proc/6792/stat : 6792 (march_ks) R 6790 6792 6372 0 -1 4194304 240 0 0 0 10 0 0 0 18 0 1 0 487840358 1216512 223 1992294400 134512640 135019032 4294956240 18446744073709551615 134526454 0 0 4096 0 0 0 0 17 0 0 0
/proc/6792/statm: 297 223 73 123 0 172 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1188

[startup+0.301832 s]
/proc/loadavg: 1.00 1.00 0.96 3/65 6792
/proc/meminfo: memFree=1568736/2055920 swapFree=4178736/4192956
[pid=6792] ppid=6790 vsize=1188 CPUtime=0.3
/proc/6792/stat : 6792 (march_ks) R 6790 6792 6372 0 -1 4194304 250 0 0 0 30 0 0 0 19 0 1 0 487840358 1216512 233 1992294400 134512640 135019032 4294956240 18446744073709551615 134538131 0 0 4096 0 0 0 0 17 0 0 0
/proc/6792/statm: 297 233 73 123 0 172 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1188

[startup+0.701876 s]
/proc/loadavg: 1.00 1.00 0.96 3/65 6792
/proc/meminfo: memFree=1568736/2055920 swapFree=4178736/4192956
[pid=6792] ppid=6790 vsize=1320 CPUtime=0.7
/proc/6792/stat : 6792 (march_ks) R 6790 6792 6372 0 -1 4194304 257 0 0 0 70 0 0 0 23 0 1 0 487840358 1351680 240 1992294400 134512640 135019032 4294956240 18446744073709551615 134526238 0 0 4096 0 0 0 0 17 0 0 0
/proc/6792/statm: 330 240 73 123 0 205 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1320

[startup+1.50197 s]
/proc/loadavg: 1.00 1.00 0.96 2/66 6793
/proc/meminfo: memFree=1567960/2055920 swapFree=4178736/4192956
[pid=6792] ppid=6790 vsize=1320 CPUtime=1.5
/proc/6792/stat : 6792 (march_ks) R 6790 6792 6372 0 -1 4194304 265 0 0 0 150 0 0 0 25 0 1 0 487840358 1351680 248 1992294400 134512640 135019032 4294956240 18446744073709551615 134526505 0 0 4096 0 0 0 0 17 0 0 0
/proc/6792/statm: 330 248 73 123 0 205 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1320

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

[startup+1.90201 s]
/proc/loadavg: 1.00 1.00 0.96 2/66 6793
/proc/meminfo: memFree=1567960/2055920 swapFree=4178736/4192956
[pid=6792] ppid=6790 vsize=1320 CPUtime=1.9
/proc/6792/stat : 6792 (march_ks) R 6790 6792 6372 0 -1 4194304 272 0 0 0 190 0 0 0 25 0 1 0 487840358 1351680 255 1992294400 134512640 135019032 4294956240 18446744073709551615 134525702 0 0 4096 0 0 0 0 17 0 0 0
/proc/6792/statm: 330 255 73 123 0 205 0
Current children cumulated CPU time (s) 1.9
Current children cumulated vsize (KiB) 1320

[startup+2.30106 s]
/proc/loadavg: 1.00 1.00 0.96 2/66 6793
/proc/meminfo: memFree=1567832/2055920 swapFree=4178736/4192956
[pid=6792] ppid=6790 vsize=1320 CPUtime=2.29
/proc/6792/stat : 6792 (march_ks) R 6790 6792 6372 0 -1 4194304 272 0 0 0 229 0 0 0 25 0 1 0 487840358 1351680 255 1992294400 134512640 135019032 4294956240 18446744073709551615 134526540 0 0 4096 0 0 0 0 17 0 0 0
/proc/6792/statm: 330 255 73 123 0 205 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 1320

Child status: 10
Real time (s): 2.32936
CPU time (s): 2.32865
CPU user time (s): 2.32765
CPU system time (s): 0.000999
CPU usage (%): 99.9693
Max. virtual memory (cumulated for all children) (KiB): 1320

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.32765
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 273
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= 7

runsolver used 0.001999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node32 at 2009-04-01 21:44:25
IDJOB=1545022
IDBENCH=70738
IDSOLVER=559
FILE ID=node32/1545022-1238615065
PBS_JOBID= 9073610
Free space on /tmp= 66456 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/380/unif-k3-r4.25-v380-c1615-S486002104-037.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1545022-1238615065/watcher-1545022-1238615065 -o /tmp/evaluation-result-1545022-1238615065/solver-1545022-1238615065 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1545022-1238615065.cnf            

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

MD5SUM BENCH= f4b8d839b40ecfc6d6fa55a34f75fca9
RANDOM SEED=131805227

node32.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		: 3000.234
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		: 3000.234
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:       1569216 kB
Buffers:         97372 kB
Cached:         299136 kB
SwapCached:       7344 kB
Active:         227888 kB
Inactive:       177436 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1569216 kB
SwapTotal:     4192956 kB
SwapFree:      4178736 kB
Dirty:            3124 kB
Writeback:           0 kB
Mapped:          14512 kB
Slab:            67248 kB
Committed_AS:  1729604 kB
PageTables:       1488 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= 66452 MiB
End job on node32 at 2009-04-01 21:44:27