Trace number 1519177

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_hi hiSAT 3.37649 3.37708

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/380/
unif-k3-r4.25-v380-c1615-S1912687159-077.cnf
MD5SUMf099d7c4c7a591bc2b090785989ddd19
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011997
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, 8 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 378 free variables and 1607 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.435
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 87 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 380 variables and 1694 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 1694 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1694 / 380 ) = 4.46
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 = 378
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 |****************************************************************| ( 0/13) NodeCount: 170
0.04/0.08	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 1/13) NodeCount: 2899
1.29/1.31	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 |***********************************************************
3.30/3.37	c |0001000001000.11001010000000000000000000$$$$$$$$$$$$$$$$$$$$$$$$|
3.30/3.37	
c |***********************************************************
3.30/3.37	c
3.30/3.37	c main():: nodeCount: 7484
3.30/3.37	c main():: dead ends in main: 227
3.30/3.37	c main():: lookAheadCount: 485563
3.30/3.37	c main():: unitResolveCount: 86245
3.30/3.37	c main():: time=3.370000
3.30/3.37	c main():: necessary_assignments: 1968
3.30/3.37	c main():: bin_sat: 0, bin_unsat 0
3.30/3.37	c main():: doublelook: #: 27967, succes #: 19881
3.30/3.37	c main():: doublelook: overall 5.970 of all possible doublelooks executed
3.30/3.37	c main():: doublelook: succesrate: 71.087, average DL_trigger: 44.118
3.30/3.37	c main():: SOLUTION VERIFIED :-)
3.30/3.37	s SATISFIABLE
3.30/3.37	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 -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 -124 125 -126 -127 128 129 130 131 132 133 134 135 136 137 138 139 141 -142 143 144 145 146 147 149 150 -151 -152 -153 154 155 156 -157 -158 161 162 -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 -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 -249 250 251 252 254 -255 256 257 258 259 260 -261 -262 263 264 265 266 -267 268 269 270 -271 -272 274 -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 -327 328 329 331 332 333 -334 -335 336 -337 -338 -339 340 341 -342 -343 344 345 -346 -347 -349 350 351 -352 -353 354 355 -356 358 359 360 361 362 -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:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1519177-1238308775/watcher-1519177-1238308775 -o /tmp/evaluation-result-1519177-1238308775/solver-1519177-1238308775 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1519177-1238308775.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 1.00 0.99 3/69 10311
/proc/meminfo: memFree=891936/2055920 swapFree=4169124/4192956
[pid=10311] ppid=10309 vsize=972 CPUtime=0
/proc/10311/stat : 10311 (march_hi) R 10309 10311 9634 0 -1 4194304 137 0 0 0 0 0 0 0 18 0 1 0 1103540648 995328 120 1992294400 134512640 135197378 4294956240 18446744073709551615 134560953 0 0 4096 0 0 0 0 17 1 0 0
/proc/10311/statm: 243 120 66 167 0 74 0

[startup+0.0431309 s]
/proc/loadavg: 0.99 1.00 0.99 3/69 10311
/proc/meminfo: memFree=891936/2055920 swapFree=4169124/4192956
[pid=10311] ppid=10309 vsize=1536 CPUtime=0.04
/proc/10311/stat : 10311 (march_hi) R 10309 10311 9634 0 -1 4194304 240 0 0 0 4 0 0 0 18 0 1 0 1103540648 1572864 223 1992294400 134512640 135197378 4294956240 18446744073709551615 134541916 0 0 4096 0 0 0 0 17 1 0 0
/proc/10311/statm: 384 223 91 167 0 215 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1536

[startup+0.101136 s]
/proc/loadavg: 0.99 1.00 0.99 3/69 10311
/proc/meminfo: memFree=891936/2055920 swapFree=4169124/4192956
[pid=10311] ppid=10309 vsize=1536 CPUtime=0.09
/proc/10311/stat : 10311 (march_hi) R 10309 10311 9634 0 -1 4194304 252 0 0 0 9 0 0 0 18 0 1 0 1103540648 1572864 235 1992294400 134512640 135197378 4294956240 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 1 0 0
/proc/10311/statm: 384 235 91 167 0 215 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1536

[startup+0.301156 s]
/proc/loadavg: 0.99 1.00 0.99 3/69 10311
/proc/meminfo: memFree=891936/2055920 swapFree=4169124/4192956
[pid=10311] ppid=10309 vsize=1536 CPUtime=0.29
/proc/10311/stat : 10311 (march_hi) R 10309 10311 9634 0 -1 4194304 260 0 0 0 29 0 0 0 19 0 1 0 1103540648 1572864 243 1992294400 134512640 135197378 4294956240 18446744073709551615 134525272 0 0 4096 0 0 0 0 17 1 0 0
/proc/10311/statm: 384 243 91 167 0 215 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1536

[startup+0.701198 s]
/proc/loadavg: 0.99 1.00 0.99 3/69 10311
/proc/meminfo: memFree=891936/2055920 swapFree=4169124/4192956
[pid=10311] ppid=10309 vsize=1668 CPUtime=0.69
/proc/10311/stat : 10311 (march_hi) R 10309 10311 9634 0 -1 4194304 272 0 0 0 69 0 0 0 22 0 1 0 1103540648 1708032 255 1992294400 134512640 135197378 4294956240 18446744073709551615 134525315 0 0 4096 0 0 0 0 17 1 0 0
/proc/10311/statm: 417 255 91 167 0 248 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1668

[startup+1.50128 s]
/proc/loadavg: 0.99 1.00 0.99 2/70 10312
/proc/meminfo: memFree=891224/2055920 swapFree=4169124/4192956
[pid=10311] ppid=10309 vsize=1668 CPUtime=1.49
/proc/10311/stat : 10311 (march_hi) R 10309 10311 9634 0 -1 4194304 279 0 0 0 149 0 0 0 25 0 1 0 1103540648 1708032 262 1992294400 134512640 135197378 4294956240 18446744073709551615 134542045 0 0 4096 0 0 0 0 17 1 0 0
/proc/10311/statm: 417 262 91 167 0 248 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1668

[startup+3.10144 s]
/proc/loadavg: 0.99 1.00 0.99 2/70 10312
/proc/meminfo: memFree=890968/2055920 swapFree=4169124/4192956
[pid=10311] ppid=10309 vsize=1668 CPUtime=3.09
/proc/10311/stat : 10311 (march_hi) R 10309 10311 9634 0 -1 4194304 288 0 0 0 309 0 0 0 25 0 1 0 1103540648 1708032 271 1992294400 134512640 135197378 4294956240 18446744073709551615 134525291 0 0 4096 0 0 0 0 17 1 0 0
/proc/10311/statm: 417 271 91 167 0 248 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1668

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

[startup+3.30546 s]
/proc/loadavg: 0.99 1.00 0.99 2/70 10312
/proc/meminfo: memFree=890968/2055920 swapFree=4169124/4192956
[pid=10311] ppid=10309 vsize=1668 CPUtime=3.3
/proc/10311/stat : 10311 (march_hi) R 10309 10311 9634 0 -1 4194304 288 0 0 0 330 0 0 0 25 0 1 0 1103540648 1708032 271 1992294400 134512640 135197378 4294956240 18446744073709551615 134603846 0 0 4096 0 0 0 0 17 1 0 0
/proc/10311/statm: 417 271 91 167 0 248 0
Current children cumulated CPU time (s) 3.3
Current children cumulated vsize (KiB) 1668

Child status: 10
Real time (s): 3.37708
CPU time (s): 3.37649
CPU user time (s): 3.37449
CPU system time (s): 0.001999
CPU usage (%): 99.9824
Max. virtual memory (cumulated for all children) (KiB): 1668

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.37449
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= 300
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= 6

runsolver used 0.008998 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node44 at 2009-03-29 08:39:35
IDJOB=1519177
IDBENCH=70741
IDSOLVER=521
FILE ID=node44/1519177-1238308775
PBS_JOBID= 9061009
Free space on /tmp= 66400 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/380/unif-k3-r4.25-v380-c1615-S1912687159-077.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1519177-1238308775/watcher-1519177-1238308775 -o /tmp/evaluation-result-1519177-1238308775/solver-1519177-1238308775 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1519177-1238308775.cnf

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

MD5SUM BENCH= f099d7c4c7a591bc2b090785989ddd19
RANDOM SEED=2143359856

node44.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		: 3000.241
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		: 3000.241
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:        892352 kB
Buffers:        108696 kB
Cached:         943644 kB
SwapCached:      13220 kB
Active:         357172 kB
Inactive:       709852 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        892352 kB
SwapTotal:     4192956 kB
SwapFree:      4169124 kB
Dirty:             788 kB
Writeback:           0 kB
Mapped:          18184 kB
Slab:            81864 kB
Committed_AS:  2546856 kB
PageTables:       1796 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= 66400 MiB
End job on node44 at 2009-03-29 08:39:38