Trace number 1519237

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 0.836871 0.838049

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/360/
unif-k3-r4.25-v360-c1530-S1459690542-033.cnf
MD5SUMc06f037558f89bd433f3640c2e148f97
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.006998
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 

0.20/0.20	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.20/0.20	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.20/0.20	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.20/0.20	c main()::
0.20/0.20	c initFormula():: searching for DIMACS p-line....
0.20/0.20	c initFormula():: the DIMACS p-line indicates a CNF of 360 variables and 1530 clauses.
0.20/0.20	c parseCNF():: parsing....
0.20/0.20	c parseCNF():: the CNF contains 0 unary clauses.
0.20/0.20	c runParser():: parsing was successful, warming up engines...
0.20/0.20	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.20/0.20	c preprocessing fase I completed:: there are now 360 free variables and 1530 clauses.
0.20/0.20	c stat :: sign balance is biased by 0.528
0.20/0.20	c using 3-SAT heuristics (occurence based diff)
0.20/0.20	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.20/0.20	c simplify_formula():: removed 0 tautological, 0 satisfied and 161 duplicate clauses
0.20/0.20	c resolvent_look() :: found 96 resolvents
0.20/0.20	c lessRedundantTransformation():: nothing to be done.
0.20/0.20	c transformTo3SAT():: you gave me 360 variables and 1626 clauses.
0.20/0.20	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.20/0.20	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.20/0.20	c transformTo3SAT():: the transformation yielded 360 variabels and 1626 clauses.
0.20/0.20	c main():: clause / variable ratio: ( 1626 / 360 ) = 4.52
0.20/0.20	c longest clause has size 3
0.20/0.20	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.20/0.20	c number of free variables = 360
0.20/0.20	c dynamic_preselect_setsize :: off
0.20/0.20	c main():: all systems go!
0.20/0.20	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/12) NodeCount: 189
0.20/0.20	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 1/12) NodeCount: 1573
0.60/0.60	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
0.79/0.83	c |100000001000.0000011000000000000000000000000$$$$$$$$$$$$$$$$$$$$|
0.79/0.83	
c |*******************************
0.79/0.83	c
0.79/0.83	c main():: nodeCount: 2215
0.79/0.83	c main():: dead ends in main: 85
0.79/0.83	c main():: lookAheadCount: 144441
0.79/0.83	c main():: unitResolveCount: 25102
0.79/0.83	c main():: time=0.830000
0.79/0.83	c main():: necessary_assignments: 551
0.79/0.83	c main():: bin_sat: 0, bin_unsat 0
0.79/0.83	c main():: doublelook: #: 7821, succes #: 5422
0.79/0.83	c main():: doublelook: overall 5.588 of all possible doublelooks executed
0.79/0.83	c main():: doublelook: succesrate: 69.326, average DL_trigger: 45.103
0.79/0.83	c main():: SOLUTION VERIFIED :-)
0.79/0.83	s SATISFIABLE
0.79/0.83	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 -40 41 42 -43 44 45 -46 -47 48 49 -50 51 52 53 55 56 57 -58 59 -60 -62 63 -65 66 -67 68 70 -71 -72 -73 -74 -75 -76 -77 78 79 80 82 -83 84 -85 86 -87 88 89 90 -92 -93 94 -95 -96 -98 99 100 -101 102 -103 -104 105 106 107 -108 109 110 111 -112 113 114 -115 117 119 -120 121 -122 123 124 -125 -126 -127 -128 -129 130 131 -132 -133 -134 135 -136 137 -138 139 140 -141 -142 144 -145 146 147 -148 -149 -150 151 152 -153 154 156 -157 158 -159 -160 -161 -162 163 -164 165 -166 167 -168 -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 -205 206 208 209 -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 -239 240 241 242 243 244 245 -246 -247 -248 249 250 -251 -252 253 254 -255 -256 -257 259 260 -261 262 -263 264 -267 -268 269 -270 271 272 273 274 -275 -276 277 278 -279 -280 -281 282 -283 -284 -285 -286 -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 -323 325 326 -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 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-1519237-1238309192/watcher-1519237-1238309192 -o /tmp/evaluation-result-1519237-1238309192/solver-1519237-1238309192 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1519237-1238309192.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: 2.00 2.00 2.00 4/94 24646
/proc/meminfo: memFree=1723992/2055920 swapFree=4152308/4192956
[pid=24646] ppid=24644 vsize=972 CPUtime=0
/proc/24646/stat : 24646 (march_hi) R 24644 24646 24281 0 -1 4194304 146 0 0 0 0 0 0 0 18 0 1 0 1103582855 995328 129 1992294400 134512640 135197378 4294956240 18446744073709551615 134560962 0 0 4096 0 0 0 0 17 0 0 0
/proc/24646/statm: 243 129 78 167 0 74 0

[startup+0.0133729 s]
/proc/loadavg: 2.00 2.00 2.00 4/94 24646
/proc/meminfo: memFree=1723992/2055920 swapFree=4152308/4192956
[pid=24646] ppid=24644 vsize=1388 CPUtime=0.01
/proc/24646/stat : 24646 (march_hi) R 24644 24646 24281 0 -1 4194304 196 0 0 0 1 0 0 0 18 0 1 0 1103582855 1421312 179 1992294400 134512640 135197378 4294956240 18446744073709551615 134713223 0 0 4096 0 0 0 0 17 0 0 0
/proc/24646/statm: 347 179 86 167 0 178 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1388

[startup+0.101382 s]
/proc/loadavg: 2.00 2.00 2.00 4/94 24646
/proc/meminfo: memFree=1723992/2055920 swapFree=4152308/4192956
[pid=24646] ppid=24644 vsize=1508 CPUtime=0.1
/proc/24646/stat : 24646 (march_hi) R 24644 24646 24281 0 -1 4194304 244 0 0 0 10 0 0 0 18 0 1 0 1103582855 1544192 227 1992294400 134512640 135197378 4294956240 18446744073709551615 134539276 0 0 4096 0 0 0 0 17 0 0 0
/proc/24646/statm: 377 227 91 167 0 208 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1508

[startup+0.301404 s]
/proc/loadavg: 2.00 2.00 2.00 4/94 24646
/proc/meminfo: memFree=1723992/2055920 swapFree=4152308/4192956
[pid=24646] ppid=24644 vsize=1640 CPUtime=0.3
/proc/24646/stat : 24646 (march_hi) R 24644 24646 24281 0 -1 4194304 258 0 0 0 30 0 0 0 19 0 1 0 1103582855 1679360 241 1992294400 134512640 135197378 4294956240 18446744073709551615 134541973 0 0 4096 0 0 0 0 17 0 0 0
/proc/24646/statm: 410 241 91 167 0 241 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1640

[startup+0.701448 s]
/proc/loadavg: 2.00 2.00 2.00 4/94 24646
/proc/meminfo: memFree=1723992/2055920 swapFree=4152308/4192956
[pid=24646] ppid=24644 vsize=1640 CPUtime=0.69
/proc/24646/stat : 24646 (march_hi) R 24644 24646 24281 0 -1 4194304 266 0 0 0 69 0 0 0 24 0 1 0 1103582855 1679360 249 1992294400 134512640 135197378 4294956240 18446744073709551615 134525281 0 0 4096 0 0 0 0 17 0 0 0
/proc/24646/statm: 410 249 91 167 0 241 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1640

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

[startup+0.801459 s]
/proc/loadavg: 2.00 2.00 2.00 4/94 24646
/proc/meminfo: memFree=1723992/2055920 swapFree=4152308/4192956
[pid=24646] ppid=24644 vsize=1640 CPUtime=0.79
/proc/24646/stat : 24646 (march_hi) R 24644 24646 24281 0 -1 4194304 269 0 0 0 79 0 0 0 25 0 1 0 1103582855 1679360 252 1992294400 134512640 135197378 4294956240 18446744073709551615 134541271 0 0 4096 0 0 0 0 17 0 0 0
/proc/24646/statm: 410 252 91 167 0 241 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 1640

Child status: 10
Real time (s): 0.838049
CPU time (s): 0.836871
CPU user time (s): 0.835872
CPU system time (s): 0.000999
CPU usage (%): 99.8594
Max. virtual memory (cumulated for all children) (KiB): 1640

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.835872
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= 284
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= 24

runsolver used 0.000999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node91 at 2009-03-29 08:46:32
IDJOB=1519237
IDBENCH=70746
IDSOLVER=521
FILE ID=node91/1519237-1238309192
PBS_JOBID= 9061053
Free space on /tmp= 66480 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/360/unif-k3-r4.25-v360-c1530-S1459690542-033.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1519237-1238309192/watcher-1519237-1238309192 -o /tmp/evaluation-result-1519237-1238309192/solver-1519237-1238309192 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1519237-1238309192.cnf

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

MD5SUM BENCH= c06f037558f89bd433f3640c2e148f97
RANDOM SEED=1410646600

node91.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		: 3000.252
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		: 3000.252
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1724472 kB
Buffers:         62032 kB
Cached:         193688 kB
SwapCached:      23080 kB
Active:         197036 kB
Inactive:        83240 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1724472 kB
SwapTotal:     4192956 kB
SwapFree:      4152308 kB
Dirty:             788 kB
Writeback:           0 kB
Mapped:          16080 kB
Slab:            34280 kB
Committed_AS:  2371440 kB
PageTables:       3260 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= 66480 MiB
End job on node91 at 2009-03-29 08:46:33