Trace number 1519165

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 3.20551 3.20849

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/380/
unif-k3-r4.25-v380-c1615-S1041106011-094.cnf
MD5SUM5d7bd014f243a8ba433df6a7b547cbaa
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011998
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, 0 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 380 free variables and 1615 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.447
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 203 duplicate clauses
0.00/0.01	c resolvent_look() :: found 122 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 380 variables and 1737 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 1737 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1737 / 380 ) = 4.57
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 = 380
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: 140
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 |***************************************************************
c |****************************************************************| ( 1/13) NodeCount: 1306
0.60/0.60	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 |***************************************************************
c |****************************************************************| ( 2/13) NodeCount: 6072
2.69/2.79	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |*********
c |**********
c |************
c |*************
c |**************
c |***************
c |****************
c |*****************
c |******************
c |********************
c |*********************
c |**********************
c |***********************
c |************************
3.20/3.20	c |1001100000000.0000001000000000000000$$$$$$$$$$$$$$$$$$$$$$$$$$$$|
3.20/3.20	
c |************************
3.20/3.20	c
3.20/3.20	c main():: nodeCount: 7050
3.20/3.20	c main():: dead ends in main: 149
3.20/3.20	c main():: lookAheadCount: 475639
3.20/3.20	c main():: unitResolveCount: 71409
3.20/3.20	c main():: time=3.200000
3.20/3.20	c main():: necessary_assignments: 1619
3.20/3.20	c main():: bin_sat: 0, bin_unsat 0
3.20/3.20	c main():: doublelook: #: 26527, succes #: 18931
3.20/3.20	c main():: doublelook: overall 5.762 of all possible doublelooks executed
3.20/3.20	c main():: doublelook: succesrate: 71.365, average DL_trigger: 47.635
3.20/3.20	c main():: SOLUTION VERIFIED :-)
3.20/3.20	s SATISFIABLE
3.20/3.20	v 1 -2 3 -4 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 -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 -118 119 120 121 123 125 126 127 128 129 -131 -132 -134 135 -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 -164 165 166 167 168 169 171 172 173 -174 175 -176 -177 178 179 180 181 -182 183 -184 185 -186 -187 188 189 190 191 192 193 194 -196 -197 198 199 -200 201 -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 -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 -293 -294 295 -296 -297 -298 299 -300 301 -302 303 -304 -305 -306 -307 -308 309 310 -311 312 -313 314 -315 -316 -318 319 -320 -321 322 -323 -324 326 327 -328 329 -330 331 -332 -333 334 335 -336 -337 338 339 340 341 342 -343 -344 345 -346 347 348 -349 350 352 353 -354 355 -356 357 -358 -359 -360 -361 362 363 -364 -365 -366 -367 -368 -369 371 372 373 374 -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-1519165-1238308739/watcher-1519165-1238308739 -o /tmp/evaluation-result-1519165-1238308739/solver-1519165-1238308739 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1519165-1238308739.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 3/64 30118
/proc/meminfo: memFree=1013136/2055924 swapFree=4176792/4192956
[pid=30118] ppid=30116 vsize=972 CPUtime=0
/proc/30118/stat : 30118 (march_hi) R 30116 30118 29563 0 -1 4194304 137 0 0 0 0 0 0 0 18 0 1 0 1103540614 995328 120 1992294400 134512640 135197378 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/30118/statm: 243 120 66 167 0 74 0

[startup+0.0909459 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 30118
/proc/meminfo: memFree=1013136/2055924 swapFree=4176792/4192956
[pid=30118] ppid=30116 vsize=1536 CPUtime=0.08
/proc/30118/stat : 30118 (march_hi) R 30116 30118 29563 0 -1 4194304 255 0 0 0 8 0 0 0 18 0 1 0 1103540614 1572864 238 1992294400 134512640 135197378 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 1 0 0
/proc/30118/statm: 384 238 91 167 0 215 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1536

[startup+0.101947 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 30118
/proc/meminfo: memFree=1013136/2055924 swapFree=4176792/4192956
[pid=30118] ppid=30116 vsize=1536 CPUtime=0.1
/proc/30118/stat : 30118 (march_hi) R 30116 30118 29563 0 -1 4194304 256 0 0 0 10 0 0 0 18 0 1 0 1103540614 1572864 239 1992294400 134512640 135197378 4294956240 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 1 0 0
/proc/30118/statm: 384 239 91 167 0 215 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1536

[startup+0.30197 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 30118
/proc/meminfo: memFree=1013136/2055924 swapFree=4176792/4192956
[pid=30118] ppid=30116 vsize=1668 CPUtime=0.3
/proc/30118/stat : 30118 (march_hi) R 30116 30118 29563 0 -1 4194304 266 0 0 0 30 0 0 0 19 0 1 0 1103540614 1708032 249 1992294400 134512640 135197378 4294956240 18446744073709551615 134601475 0 0 4096 0 0 0 0 17 1 0 0
/proc/30118/statm: 417 249 91 167 0 248 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1668

[startup+0.702017 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 30118
/proc/meminfo: memFree=1013136/2055924 swapFree=4176792/4192956
[pid=30118] ppid=30116 vsize=1668 CPUtime=0.7
/proc/30118/stat : 30118 (march_hi) R 30116 30118 29563 0 -1 4194304 272 0 0 0 70 0 0 0 22 0 1 0 1103540614 1708032 255 1992294400 134512640 135197378 4294956240 18446744073709551615 134548473 0 0 4096 0 0 0 0 17 1 0 0
/proc/30118/statm: 417 255 91 167 0 248 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1668

[startup+1.50211 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 30119
/proc/meminfo: memFree=1012424/2055924 swapFree=4176792/4192956
[pid=30118] ppid=30116 vsize=1668 CPUtime=1.5
/proc/30118/stat : 30118 (march_hi) R 30116 30118 29563 0 -1 4194304 283 0 0 0 150 0 0 0 25 0 1 0 1103540614 1708032 266 1992294400 134512640 135197378 4294956240 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 1 0 0
/proc/30118/statm: 417 266 91 167 0 248 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1668

[startup+3.1013 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 30119
/proc/meminfo: memFree=1012296/2055924 swapFree=4176792/4192956
[pid=30118] ppid=30116 vsize=1668 CPUtime=3.09
/proc/30118/stat : 30118 (march_hi) R 30116 30118 29563 0 -1 4194304 292 0 0 0 309 0 0 0 25 0 1 0 1103540614 1708032 275 1992294400 134512640 135197378 4294956240 18446744073709551615 134552656 0 0 4096 0 0 0 0 17 1 0 0
/proc/30118/statm: 417 275 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+3.20131 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 30119
/proc/meminfo: memFree=1012232/2055924 swapFree=4176792/4192956
[pid=30118] ppid=30116 vsize=1668 CPUtime=3.2
/proc/30118/stat : 30118 (march_hi) R 30116 30118 29563 0 -1 4194304 292 0 0 0 320 0 0 0 25 0 1 0 1103540614 1708032 275 1992294400 134512640 135197378 4294956240 18446744073709551615 134541260 0 0 4096 0 0 0 0 17 1 0 0
/proc/30118/statm: 417 275 91 167 0 248 0
Current children cumulated CPU time (s) 3.2
Current children cumulated vsize (KiB) 1668

Child status: 10
Real time (s): 3.20849
CPU time (s): 3.20551
CPU user time (s): 3.20551
CPU system time (s): 0
CPU usage (%): 99.9072
Max. virtual memory (cumulated for all children) (KiB): 1668

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.20551
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 298
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= 43

runsolver used 0.007998 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node6 at 2009-03-29 08:38:59
IDJOB=1519165
IDBENCH=70740
IDSOLVER=521
FILE ID=node6/1519165-1238308739
PBS_JOBID= 9061024
Free space on /tmp= 66324 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/380/unif-k3-r4.25-v380-c1615-S1041106011-094.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1519165-1238308739/watcher-1519165-1238308739 -o /tmp/evaluation-result-1519165-1238308739/solver-1519165-1238308739 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1519165-1238308739.cnf

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

MD5SUM BENCH= 5d7bd014f243a8ba433df6a7b547cbaa
RANDOM SEED=1620663468

node6.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		: 3000.236
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		: 3000.236
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:      2055924 kB
MemFree:       1013616 kB
Buffers:         98976 kB
Cached:         844656 kB
SwapCached:       9932 kB
Active:         143644 kB
Inactive:       813508 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1013616 kB
SwapTotal:     4192956 kB
SwapFree:      4176792 kB
Dirty:             792 kB
Writeback:           0 kB
Mapped:          19176 kB
Slab:            71160 kB
Committed_AS:  2798720 kB
PageTables:       1464 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= 66320 MiB
End job on node6 at 2009-03-29 08:39:02