Trace number 1519105

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 0.480926 0.481174

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/380/
unif-k3-r4.25-v380-c1615-S1985172968-100.cnf
MD5SUMd341022d95ddbcad449a00c47578e9f1
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.015997
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, 25 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 377 free variables and 1590 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.469
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 177 duplicate clauses
0.00/0.01	c resolvent_look() :: found 89 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 380 variables and 1679 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 1679 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1679 / 380 ) = 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 = 377
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 |****************************************************************| ( 0/17) NodeCount: 151
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 |***************************************************************
0.40/0.48	c |00000000000001000.0000100000010000000000000$$$$$$$$$$$$$$$$$$$$$|
0.40/0.48	
c |***************************************************************
0.40/0.48	c
0.40/0.48	c main():: nodeCount: 1175
0.40/0.48	c main():: dead ends in main: 30
0.40/0.48	c main():: lookAheadCount: 76299
0.40/0.48	c main():: unitResolveCount: 14480
0.40/0.48	c main():: time=0.480000
0.40/0.48	c main():: necessary_assignments: 369
0.40/0.48	c main():: bin_sat: 0, bin_unsat 0
0.40/0.48	c main():: doublelook: #: 3767, succes #: 2528
0.40/0.48	c main():: doublelook: overall 5.093 of all possible doublelooks executed
0.40/0.48	c main():: doublelook: succesrate: 67.109, average DL_trigger: 41.612
0.40/0.48	c main():: SOLUTION VERIFIED :-)
0.40/0.48	s SATISFIABLE
0.40/0.48	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 -28 -29 30 31 -32 33 34 -35 36 37 -38 -39 -40 -41 -42 43 -44 45 -46 -47 -48 49 -51 52 53 -54 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 -105 106 -107 -108 109 110 -111 112 113 -115 116 -117 118 119 -120 -121 122 123 -124 -125 126 127 -128 -129 130 131 -132 -134 -135 136 137 138 -139 -140 -141 -142 -143 144 145 146 -147 -148 149 150 -151 -152 -153 155 156 -157 158 159 160 -161 -162 163 164 165 -166 -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 -241 -242 -243 -244 245 246 247 248 -249 -250 -251 -252 -253 -254 255 256 258 259 -261 -262 263 264 265 266 267 -268 269 270 -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 -372 373 374 375 376 378 -379 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-1519105-1238308393/watcher-1519105-1238308393 -o /tmp/evaluation-result-1519105-1238308393/solver-1519105-1238308393 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1519105-1238308393.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: 0.92 0.98 0.99 3/64 14748
/proc/meminfo: memFree=744576/2055920 swapFree=4176444/4192956
[pid=14748] ppid=14746 vsize=972 CPUtime=0
/proc/14748/stat : 14748 (march_hi) R 14746 14748 14330 0 -1 4194304 137 0 0 0 0 0 0 0 20 0 1 0 1103504720 995328 120 1992294400 134512640 135197378 4294956240 18446744073709551615 134560999 0 0 4096 0 0 0 0 17 1 0 0
/proc/14748/statm: 243 120 66 167 0 74 0

[startup+0.0977831 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 14748
/proc/meminfo: memFree=744576/2055920 swapFree=4176444/4192956
[pid=14748] ppid=14746 vsize=1536 CPUtime=0.09
/proc/14748/stat : 14748 (march_hi) R 14746 14748 14330 0 -1 4194304 256 0 0 0 9 0 0 0 20 0 1 0 1103504720 1572864 239 1992294400 134512640 135197378 4294956240 18446744073709551615 134713223 0 0 4096 0 0 0 0 17 1 0 0
/proc/14748/statm: 384 239 91 167 0 215 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1536

[startup+0.101784 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 14748
/proc/meminfo: memFree=744576/2055920 swapFree=4176444/4192956
[pid=14748] ppid=14746 vsize=1536 CPUtime=0.1
/proc/14748/stat : 14748 (march_hi) R 14746 14748 14330 0 -1 4194304 256 0 0 0 10 0 0 0 20 0 1 0 1103504720 1572864 239 1992294400 134512640 135197378 4294956240 18446744073709551615 134552735 0 0 4096 0 0 0 0 17 1 0 0
/proc/14748/statm: 384 239 91 167 0 215 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1536

[startup+0.301805 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 14748
/proc/meminfo: memFree=744576/2055920 swapFree=4176444/4192956
[pid=14748] ppid=14746 vsize=1668 CPUtime=0.3
/proc/14748/stat : 14748 (march_hi) R 14746 14748 14330 0 -1 4194304 268 0 0 0 30 0 0 0 22 0 1 0 1103504720 1708032 251 1992294400 134512640 135197378 4294956240 18446744073709551615 134542045 0 0 4096 0 0 0 0 17 1 0 0
/proc/14748/statm: 417 251 91 167 0 248 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1668

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

[startup+0.401814 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 14748
/proc/meminfo: memFree=744576/2055920 swapFree=4176444/4192956
[pid=14748] ppid=14746 vsize=1668 CPUtime=0.4
/proc/14748/stat : 14748 (march_hi) R 14746 14748 14330 0 -1 4194304 272 0 0 0 40 0 0 0 23 0 1 0 1103504720 1708032 255 1992294400 134512640 135197378 4294956240 18446744073709551615 134542426 0 0 4096 0 0 0 0 17 1 0 0
/proc/14748/statm: 417 255 91 167 0 248 0
Current children cumulated CPU time (s) 0.4
Current children cumulated vsize (KiB) 1668

Child status: 10
Real time (s): 0.481174
CPU time (s): 0.480926
CPU user time (s): 0.479927
CPU system time (s): 0.000999
CPU usage (%): 99.9485
Max. virtual memory (cumulated for all children) (KiB): 1668

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.479927
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= 286
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= 0

runsolver used 0.004999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node27 at 2009-03-29 08:33:13
IDJOB=1519105
IDBENCH=70735
IDSOLVER=521
FILE ID=node27/1519105-1238308393
PBS_JOBID= 9061034
Free space on /tmp= 65616 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/380/unif-k3-r4.25-v380-c1615-S1985172968-100.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1519105-1238308393/watcher-1519105-1238308393 -o /tmp/evaluation-result-1519105-1238308393/solver-1519105-1238308393 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1519105-1238308393.cnf

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

MD5SUM BENCH= d341022d95ddbcad449a00c47578e9f1
RANDOM SEED=1726002808

node27.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		: 2800.196
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	: 5521.40
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		: 2800.196
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:        744992 kB
Buffers:         89436 kB
Cached:        1118696 kB
SwapCached:       9544 kB
Active:         184988 kB
Inactive:      1034356 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        744992 kB
SwapTotal:     4192956 kB
SwapFree:      4176444 kB
Dirty:             804 kB
Writeback:           0 kB
Mapped:          16848 kB
Slab:            77392 kB
Committed_AS:  2790276 kB
PageTables:       1380 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264948 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 65616 MiB
End job on node27 at 2009-03-29 08:33:14