Trace number 1519225

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 0.557914 0.559268

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/360/
unif-k3-r4.25-v360-c1530-S1684547485-073.cnf
MD5SUM7978035feeedb8c4f26fadad2c608014
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014997
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, 16 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 358 free variables and 1514 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.499
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 166 duplicate clauses
0.00/0.01	c resolvent_look() :: found 76 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1590 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 1590 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1590 / 360 ) = 4.42
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 = 358
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 |****************************************************************| ( 0/15) NodeCount: 141
0.00/0.07	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
0.49/0.55	c |000000000000010.00011100000000000000000000000$$$$$$$$$$$$$$$$$$$|
0.49/0.55	
c |***************************************************************
0.49/0.55	c
0.49/0.55	c main():: nodeCount: 1374
0.49/0.55	c main():: dead ends in main: 64
0.49/0.55	c main():: lookAheadCount: 87503
0.49/0.55	c main():: unitResolveCount: 18713
0.49/0.55	c main():: time=0.550000
0.49/0.55	c main():: necessary_assignments: 467
0.49/0.55	c main():: bin_sat: 0, bin_unsat 0
0.49/0.55	c main():: doublelook: #: 4467, succes #: 3044
0.49/0.55	c main():: doublelook: overall 5.285 of all possible doublelooks executed
0.49/0.55	c main():: doublelook: succesrate: 68.144, average DL_trigger: 41.004
0.49/0.55	c main():: SOLUTION VERIFIED :-)
0.49/0.55	s SATISFIABLE
0.49/0.55	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 -52 -53 -54 -55 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 84 -85 86 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 -114 116 117 118 119 120 121 -122 -123 -124 -125 -126 127 -128 130 131 132 -133 -134 -135 -137 -138 -140 141 142 143 -145 146 147 148 -149 150 151 152 153 154 -155 156 157 158 -159 -160 161 -162 -163 164 165 166 -168 -169 -170 -171 -173 -174 -175 -176 -177 178 179 -180 181 -182 -183 -184 -186 -187 -188 189 -190 191 192 193 -194 195 -196 -197 198 -199 200 201 203 204 -205 -206 207 208 209 210 211 -212 213 -214 -215 216 -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 -246 247 248 249 250 252 253 -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 -306 307 -308 309 310 311 312 313 314 315 316 317 318 -319 321 322 -323 -324 325 -326 -327 328 329 -330 331 -332 333 335 336 337 -338 339 340 -341 342 -343 344 345 -346 347 348 349 -350 351 -352 353 -354 355 -356 357 358 -359 -360 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-1519225-1238309109/watcher-1519225-1238309109 -o /tmp/evaluation-result-1519225-1238309109/solver-1519225-1238309109 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1519225-1238309109.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: 0.91 0.95 0.97 2/64 23216
/proc/meminfo: memFree=829680/2055920 swapFree=4176704/4192956
[pid=23216] ppid=23214 vsize=964 CPUtime=0
/proc/23216/stat : 23216 (march_hi) R 23214 23216 22817 0 -1 4194304 121 0 0 0 0 0 0 0 20 0 1 0 1103576732 987136 105 1992294400 134512640 135197378 4294956240 18446744073709551615 134697414 0 0 4096 0 0 0 0 17 1 0 0
/proc/23216/statm: 241 107 62 167 0 72 0

[startup+0.0792951 s]
/proc/loadavg: 0.91 0.95 0.97 2/64 23216
/proc/meminfo: memFree=829680/2055920 swapFree=4176704/4192956
[pid=23216] ppid=23214 vsize=1520 CPUtime=0.07
/proc/23216/stat : 23216 (march_hi) R 23214 23216 22817 0 -1 4194304 246 0 0 0 7 0 0 0 20 0 1 0 1103576732 1556480 229 1992294400 134512640 135197378 4294956240 18446744073709551615 134525416 0 0 4096 0 0 0 0 17 1 0 0
/proc/23216/statm: 380 229 91 167 0 211 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1520

[startup+0.101298 s]
/proc/loadavg: 0.91 0.95 0.97 2/64 23216
/proc/meminfo: memFree=829680/2055920 swapFree=4176704/4192956
[pid=23216] ppid=23214 vsize=1520 CPUtime=0.09
/proc/23216/stat : 23216 (march_hi) R 23214 23216 22817 0 -1 4194304 247 0 0 0 9 0 0 0 18 0 1 0 1103576732 1556480 230 1992294400 134512640 135197378 4294956240 18446744073709551615 134570828 0 0 4096 0 0 0 0 17 1 0 0
/proc/23216/statm: 380 230 91 167 0 211 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1520

[startup+0.301321 s]
/proc/loadavg: 0.91 0.95 0.97 2/64 23216
/proc/meminfo: memFree=829680/2055920 swapFree=4176704/4192956
[pid=23216] ppid=23214 vsize=1652 CPUtime=0.29
/proc/23216/stat : 23216 (march_hi) R 23214 23216 22817 0 -1 4194304 262 0 0 0 29 0 0 0 19 0 1 0 1103576732 1691648 245 1992294400 134512640 135197378 4294956240 18446744073709551615 134697335 0 0 4096 0 0 0 0 17 1 0 0
/proc/23216/statm: 413 245 91 167 0 244 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1652

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

[startup+0.501344 s]
/proc/loadavg: 0.91 0.95 0.97 2/64 23216
/proc/meminfo: memFree=829680/2055920 swapFree=4176704/4192956
[pid=23216] ppid=23214 vsize=1652 CPUtime=0.49
/proc/23216/stat : 23216 (march_hi) R 23214 23216 22817 0 -1 4194304 268 0 0 0 49 0 0 0 20 0 1 0 1103576732 1691648 251 1992294400 134512640 135197378 4294956240 18446744073709551615 134539249 0 0 4096 0 0 0 0 17 1 0 0
/proc/23216/statm: 413 251 91 167 0 244 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 1652

Child status: 10
Real time (s): 0.559268
CPU time (s): 0.557914
CPU user time (s): 0.556915
CPU system time (s): 0.000999
CPU usage (%): 99.7579
Max. virtual memory (cumulated for all children) (KiB): 1652

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.556915
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= 283
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= 2

runsolver used 0.001999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node20 at 2009-03-29 08:45:09
IDJOB=1519225
IDBENCH=70745
IDSOLVER=521
FILE ID=node20/1519225-1238309109
PBS_JOBID= 9061015
Free space on /tmp= 65668 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/360/unif-k3-r4.25-v360-c1530-S1684547485-073.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1519225-1238309109/watcher-1519225-1238309109 -o /tmp/evaluation-result-1519225-1238309109/solver-1519225-1238309109 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1519225-1238309109.cnf

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

MD5SUM BENCH= 7978035feeedb8c4f26fadad2c608014
RANDOM SEED=2144284815

node20.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		: 3000.235
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		: 3000.235
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:        830160 kB
Buffers:        104900 kB
Cached:        1014508 kB
SwapCached:      10004 kB
Active:         161896 kB
Inactive:       969040 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        830160 kB
SwapTotal:     4192956 kB
SwapFree:      4176704 kB
Dirty:             792 kB
Writeback:           0 kB
Mapped:          16632 kB
Slab:            80912 kB
Committed_AS:  2830888 kB
PageTables:       1404 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= 65664 MiB
End job on node20 at 2009-03-29 08:45:09