Trace number 1519213

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 0.489924 0.488946

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/360/
unif-k3-r4.25-v360-c1530-S1826927554-087.cnf
MD5SUM0b7c656709bcc63999a07f86368ab57c
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, 8 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 359 free variables and 1522 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.491
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 199 duplicate clauses
0.00/0.01	c resolvent_look() :: found 105 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1627 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 1627 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1627 / 360 ) = 4.52
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 = 359
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: 142
0.03/0.06	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 1/17) NodeCount: 842
0.29/0.34	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
0.40/0.48	c |10000000000001000.0000100000000000000$$$$$$$$$$$$$$$$$$$$$$$$$$$|
0.40/0.48	
c |*******************************
0.40/0.48	c
0.40/0.48	c main():: nodeCount: 1242
0.40/0.48	c main():: dead ends in main: 45
0.40/0.48	c main():: lookAheadCount: 87178
0.40/0.48	c main():: unitResolveCount: 14552
0.40/0.48	c main():: time=0.480000
0.40/0.48	c main():: necessary_assignments: 356
0.40/0.48	c main():: bin_sat: 0, bin_unsat 0
0.40/0.48	c main():: doublelook: #: 3885, succes #: 2505
0.40/0.48	c main():: doublelook: overall 4.588 of all possible doublelooks executed
0.40/0.48	c main():: doublelook: succesrate: 64.479, average DL_trigger: 40.790
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 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 55 56 57 58 -59 60 61 62 -63 -64 65 -66 -67 -68 69 70 -71 -72 -73 75 -76 78 -79 -80 81 82 -83 84 85 -86 -87 88 89 90 -91 -92 93 -95 96 97 99 -100 101 102 103 104 -105 106 107 -108 109 110 111 112 113 114 115 116 -117 119 120 121 122 -123 124 -125 -126 128 129 -130 131 -132 133 134 135 -136 -137 138 -139 140 -141 142 143 -144 -145 -146 147 148 -149 150 -151 152 -153 154 155 156 158 159 162 163 164 165 166 -167 -168 -169 -170 172 173 174 175 176 177 178 179 -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 -223 -224 -225 226 -227 -228 -229 -230 231 -232 233 -234 -235 236 -237 238 239 -240 241 -242 -243 -244 245 -246 -247 249 -250 251 -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 -278 280 -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 -310 312 313 -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 -340 342 -343 344 345 -346 -347 349 -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-1519213-1238309072/watcher-1519213-1238309072 -o /tmp/evaluation-result-1519213-1238309072/solver-1519213-1238309072 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1519213-1238309072.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 0.98 0.99 3/64 20437
/proc/meminfo: memFree=1294888/2055920 swapFree=4178912/4192956
[pid=20437] ppid=20435 vsize=972 CPUtime=0
/proc/20437/stat : 20437 (march_hi) R 20435 20437 20081 0 -1 4194304 134 0 0 0 0 0 0 0 18 0 1 0 1103569671 995328 117 1992294400 134512640 135197378 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/20437/statm: 243 117 66 167 0 74 0

[startup+0.037223 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 20437
/proc/meminfo: memFree=1294888/2055920 swapFree=4178912/4192956
[pid=20437] ppid=20435 vsize=1508 CPUtime=0.03
/proc/20437/stat : 20437 (march_hi) R 20435 20437 20081 0 -1 4194304 243 0 0 0 3 0 0 0 18 0 1 0 1103569671 1544192 226 1992294400 134512640 135197378 4294956240 18446744073709551615 134539349 0 0 4096 0 0 0 0 17 1 0 0
/proc/20437/statm: 377 226 91 167 0 208 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1508

[startup+0.101229 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 20437
/proc/meminfo: memFree=1294888/2055920 swapFree=4178912/4192956
[pid=20437] ppid=20435 vsize=1508 CPUtime=0.09
/proc/20437/stat : 20437 (march_hi) R 20435 20437 20081 0 -1 4194304 254 0 0 0 9 0 0 0 18 0 1 0 1103569671 1544192 237 1992294400 134512640 135197378 4294956240 18446744073709551615 134593937 0 0 4096 0 0 0 0 17 1 0 0
/proc/20437/statm: 377 237 91 167 0 208 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1508

[startup+0.301249 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 20437
/proc/meminfo: memFree=1294888/2055920 swapFree=4178912/4192956
[pid=20437] ppid=20435 vsize=1640 CPUtime=0.29
/proc/20437/stat : 20437 (march_hi) R 20435 20437 20081 0 -1 4194304 266 0 0 0 29 0 0 0 19 0 1 0 1103569671 1679360 249 1992294400 134512640 135197378 4294956240 18446744073709551615 134525358 0 0 4096 0 0 0 0 17 1 0 0
/proc/20437/statm: 410 249 91 167 0 241 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1640

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

[startup+0.40226 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 20437
/proc/meminfo: memFree=1294888/2055920 swapFree=4178912/4192956
[pid=20437] ppid=20435 vsize=1640 CPUtime=0.4
/proc/20437/stat : 20437 (march_hi) R 20435 20437 20081 0 -1 4194304 271 0 0 0 40 0 0 0 20 0 1 0 1103569671 1679360 254 1992294400 134512640 135197378 4294956240 18446744073709551615 134539183 0 0 4096 0 0 0 0 17 1 0 0
/proc/20437/statm: 410 254 91 167 0 241 0
Current children cumulated CPU time (s) 0.4
Current children cumulated vsize (KiB) 1640

Child status: 10
Real time (s): 0.488946
CPU time (s): 0.489924
CPU user time (s): 0.487925
CPU system time (s): 0.001999
CPU usage (%): 100.2
Max. virtual memory (cumulated for all children) (KiB): 1640

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.487925
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= 276
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= 3
involuntary context switches= 1

runsolver used 0.005999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node47 at 2009-03-29 08:44:32
IDJOB=1519213
IDBENCH=70744
IDSOLVER=521
FILE ID=node47/1519213-1238309072
PBS_JOBID= 9061043
Free space on /tmp= 66340 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/360/unif-k3-r4.25-v360-c1530-S1826927554-087.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1519213-1238309072/watcher-1519213-1238309072 -o /tmp/evaluation-result-1519213-1238309072/solver-1519213-1238309072 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1519213-1238309072.cnf

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

MD5SUM BENCH= 0b7c656709bcc63999a07f86368ab57c
RANDOM SEED=645317749

node47.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		: 3000.216
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		: 3000.216
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:       1295368 kB
Buffers:         97540 kB
Cached:         563040 kB
SwapCached:       7792 kB
Active:         135740 kB
Inactive:       535276 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1295368 kB
SwapTotal:     4192956 kB
SwapFree:      4178912 kB
Dirty:             808 kB
Writeback:           0 kB
Mapped:          16108 kB
Slab:            75508 kB
Committed_AS:  2917736 kB
PageTables:       1452 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= 66340 MiB
End job on node47 at 2009-03-29 08:44:32