Trace number 1519261

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 0.025995 0.0263571

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/360/
unif-k3-r4.25-v360-c1530-S2032263657-035.cnf
MD5SUM53f64d3919c2bd6a89e2520e3c5780bd
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007998
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 0.527
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 181 duplicate clauses
0.00/0.01	c resolvent_look() :: found 104 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1618 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 1618 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1618 / 360 ) = 4.49
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 |----------------------------------------------------------------|
0.00/0.02	c |.000000000000000000000000000000000000000000000000000000000000000|
0.00/0.02	
c |
0.00/0.02	c
0.00/0.02	c main():: nodeCount: 64
0.00/0.02	c main():: dead ends in main: 0
0.00/0.02	c main():: lookAheadCount: 4897
0.00/0.02	c main():: unitResolveCount: 335
0.00/0.02	c main():: time=0.020000
0.00/0.02	c main():: necessary_assignments: 17
0.00/0.02	c main():: bin_sat: 0, bin_unsat 0
0.00/0.02	c main():: doublelook: #: 67, succes #: 10
0.00/0.02	c main():: doublelook: overall 1.370 of all possible doublelooks executed
0.00/0.02	c main():: doublelook: succesrate: 14.925, average DL_trigger: 26.743
0.00/0.02	c main():: SOLUTION VERIFIED :-)
0.00/0.02	s SATISFIABLE
0.00/0.02	v 1 2 3 4 -5 -6 -7 8 -9 -10 -11 -12 -14 15 -16 17 -18 19 -20 -21 -22 23 24 25 26 -28 -29 30 31 32 -34 -35 -36 37 38 -39 40 41 43 -44 -45 46 -47 -48 49 50 -51 -52 -53 54 -55 56 57 -58 60 61 62 -63 65 -66 67 -68 -69 -70 -71 72 -73 74 76 77 78 -79 -80 -81 -82 83 -84 85 -86 88 -89 -90 91 -92 -93 -94 -95 -96 -97 100 -101 102 -103 -104 -106 -107 -108 -109 110 111 112 113 114 115 -116 -117 -118 -119 -120 121 -122 123 124 126 -127 128 -129 130 -131 132 133 134 -135 -136 -137 -138 139 -140 -141 142 143 144 -145 146 -147 149 -150 151 152 153 -154 -155 156 -157 158 159 -160 -162 163 164 165 -166 167 -168 169 -170 -171 -172 173 -174 -175 176 177 -178 -179 -180 181 -182 184 -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 -216 218 220 221 -222 223 224 -225 -226 -227 -228 -229 230 -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 -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 -303 305 306 307 308 -309 -310 -311 -312 313 315 316 -317 319 320 -321 -322 323 324 325 326 -327 328 329 330 -331 -332 333 334 335 336 -337 -338 339 340 341 342 -343 -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-1519261-1238309290/watcher-1519261-1238309290 -o /tmp/evaluation-result-1519261-1238309290/solver-1519261-1238309290 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1519261-1238309290.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 2/65 25572
/proc/meminfo: memFree=1383160/2055920 swapFree=4178736/4192956
[pid=25572] ppid=25570 vsize=972 CPUtime=0
/proc/25572/stat : 25572 (march_hi) R 25570 25572 25188 0 -1 4194304 135 0 0 0 0 0 0 0 20 0 1 0 457262873 995328 118 1992294400 134512640 135197378 4294956240 18446744073709551615 134528032 0 0 4096 0 0 0 0 17 0 0 0
/proc/25572/statm: 243 118 67 167 0 74 0

[startup+0.00722702 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25572
/proc/meminfo: memFree=1383160/2055920 swapFree=4178736/4192956
[pid=25572] ppid=25570 vsize=972 CPUtime=0
/proc/25572/stat : 25572 (march_hi) R 25570 25572 25188 0 -1 4194304 146 0 0 0 0 0 0 0 20 0 1 0 457262873 995328 129 1992294400 134512640 135197378 4294956240 18446744073709551615 134560987 0 0 4096 0 0 0 0 17 0 0 0
/proc/25572/statm: 243 129 78 167 0 74 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 972

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

[startup+0.00722702 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25572
/proc/meminfo: memFree=1383160/2055920 swapFree=4178736/4192956
[pid=25572] ppid=25570 vsize=972 CPUtime=0
/proc/25572/stat : 25572 (march_hi) R 25570 25572 25188 0 -1 4194304 146 0 0 0 0 0 0 0 20 0 1 0 457262873 995328 129 1992294400 134512640 135197378 4294956240 18446744073709551615 134560987 0 0 4096 0 0 0 0 17 0 0 0
/proc/25572/statm: 243 129 78 167 0 74 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 972

Child status: 10
Real time (s): 0.0263571
CPU time (s): 0.025995
CPU user time (s): 0.024996
CPU system time (s): 0.000999
CPU usage (%): 98.6262
Max. virtual memory (cumulated for all children) (KiB): 972

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.024996
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= 270
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= 1
involuntary context switches= 0

runsolver used 0.003999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node32 at 2009-03-29 08:48:10
IDJOB=1519261
IDBENCH=70748
IDSOLVER=521
FILE ID=node32/1519261-1238309290
PBS_JOBID= 9061067
Free space on /tmp= 66456 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/360/unif-k3-r4.25-v360-c1530-S2032263657-035.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1519261-1238309290/watcher-1519261-1238309290 -o /tmp/evaluation-result-1519261-1238309290/solver-1519261-1238309290 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1519261-1238309290.cnf

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

MD5SUM BENCH= 53f64d3919c2bd6a89e2520e3c5780bd
RANDOM SEED=1211199454

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:       1383640 kB
Buffers:         73376 kB
Cached:         527404 kB
SwapCached:       7344 kB
Active:         176400 kB
Inactive:       433152 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1383640 kB
SwapTotal:     4192956 kB
SwapFree:      4178736 kB
Dirty:             788 kB
Writeback:           0 kB
Mapped:          14472 kB
Slab:            48500 kB
Committed_AS:  1449720 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= 66456 MiB
End job on node32 at 2009-03-29 08:48:10