Trace number 1519130

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_nn nnSAT 0.229964 0.230255

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/380/
unif-k3-r4.25-v380-c1615-S1516934767-080.cnf
MD5SUMe81ed5c11d3bffdd04a2753974045769
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008998
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, 8 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 379 free variables and 1607 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.401
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 149 duplicate clauses
0.00/0.01	c resolvent_look() :: found 71 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 380 variables and 1678 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 1678 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1678 / 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 = 379
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 |****************************************************************| ( 0/999) NodeCount: 28
0.00/0.02	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 1/999) NodeCount: 337
0.09/0.10	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 |***********************************************
0.19/0.22	c |01000000000010000000000000000000000000000000$$$$$$$$$$$$$$$$$$$|
0.19/0.22	
c |***********************************************
0.19/0.23	c
0.19/0.23	c main():: nodeCount: 791
0.19/0.23	c main():: dead ends in main: 2
0.19/0.23	c main():: lookAheadCount: 68361
0.19/0.23	c main():: unitResolveCount: 3861
0.19/0.23	c main():: time=0.220000
0.19/0.23	c main():: necessary_assignments: 75
0.19/0.23	c main():: bin_sat: 0, bin_unsat 0
0.19/0.23	c main():: doublelook: #: 1477, succes #: 550
0.19/0.23	c main():: doublelook: overall 2.174 of all possible doublelooks executed
0.19/0.23	c main():: doublelook: succesrate: 37.238, average DL_trigger: 44.785
0.19/0.23	c main():: SOLUTION VERIFIED :-)
0.19/0.23	s SATISFIABLE
0.19/0.23	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 -31 32 33 34 35 36 37 -38 -39 -40 41 -42 -43 44 -45 46 47 48 49 -50 -52 53 54 -55 57 -59 60 61 62 63 64 -66 67 -68 69 -70 71 -72 -73 74 75 -76 -78 80 -81 -82 83 -84 -85 -86 87 -88 -90 91 92 93 -94 95 -96 97 98 99 -100 101 102 -103 105 -106 -107 108 109 -110 -111 112 113 -114 -115 116 -117 118 -120 121 122 -123 124 125 -126 -127 -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 -155 156 157 158 -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 -206 207 209 210 211 -212 213 -214 -215 -216 217 -218 -219 220 221 223 -224 225 -226 -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 -257 258 259 -261 -262 -263 265 -266 -267 268 269 -270 271 -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 -309 310 313 314 315 -316 -317 318 319 -320 -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 -374 375 376 377 -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-1519130-1238308557/watcher-1519130-1238308557 -o /tmp/evaluation-result-1519130-1238308557/solver-1519130-1238308557 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1519130-1238308557.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 8078
/proc/meminfo: memFree=814976/2055920 swapFree=4174204/4192956
[pid=8078] ppid=8076 vsize=972 CPUtime=0
/proc/8078/stat : 8078 (march_nn) R 8076 8078 7629 0 -1 4194304 138 0 0 0 0 0 0 0 18 0 1 0 1103521428 995328 121 1992294400 134512640 135197250 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/8078/statm: 243 121 67 167 0 74 0

[startup+0.0549129 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 8078
/proc/meminfo: memFree=814976/2055920 swapFree=4174204/4192956
[pid=8078] ppid=8076 vsize=1536 CPUtime=0.05
/proc/8078/stat : 8078 (march_nn) R 8076 8078 7629 0 -1 4194304 249 0 0 0 5 0 0 0 18 0 1 0 1103521428 1572864 232 1992294400 134512640 135197250 4294956240 18446744073709551615 134697286 0 0 4096 0 0 0 0 17 1 0 0
/proc/8078/statm: 384 232 93 167 0 215 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 1536

[startup+0.10192 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 8078
/proc/meminfo: memFree=814976/2055920 swapFree=4174204/4192956
[pid=8078] ppid=8076 vsize=1536 CPUtime=0.09
/proc/8078/stat : 8078 (march_nn) R 8076 8078 7629 0 -1 4194304 255 0 0 0 9 0 0 0 18 0 1 0 1103521428 1572864 238 1992294400 134512640 135197250 4294956240 18446744073709551615 134552490 0 0 4096 0 0 0 0 17 1 0 0
/proc/8078/statm: 384 238 93 167 0 215 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1536

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

[startup+0.201934 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 8078
/proc/meminfo: memFree=814976/2055920 swapFree=4174204/4192956
[pid=8078] ppid=8076 vsize=1536 CPUtime=0.19
/proc/8078/stat : 8078 (march_nn) R 8076 8078 7629 0 -1 4194304 265 0 0 0 19 0 0 0 19 0 1 0 1103521428 1572864 248 1992294400 134512640 135197250 4294956240 18446744073709551615 134618330 0 0 4096 0 0 0 0 17 1 0 0
/proc/8078/statm: 384 248 93 167 0 215 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 1536

Child status: 10
Real time (s): 0.230255
CPU time (s): 0.229964
CPU user time (s): 0.227965
CPU system time (s): 0.001999
CPU usage (%): 99.8736
Max. virtual memory (cumulated for all children) (KiB): 1536

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.227965
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= 282
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= 1

runsolver used 0.004999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node22 at 2009-03-29 08:35:57
IDJOB=1519130
IDBENCH=70737
IDSOLVER=522
FILE ID=node22/1519130-1238308557
PBS_JOBID= 9061039
Free space on /tmp= 66328 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/380/unif-k3-r4.25-v380-c1615-S1516934767-080.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1519130-1238308557/watcher-1519130-1238308557 -o /tmp/evaluation-result-1519130-1238308557/solver-1519130-1238308557 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1519130-1238308557.cnf

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

MD5SUM BENCH= e81ed5c11d3bffdd04a2753974045769
RANDOM SEED=2136322525

node22.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		: 3000.279
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		: 3000.279
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:        815392 kB
Buffers:        105644 kB
Cached:        1024392 kB
SwapCached:      12568 kB
Active:         189600 kB
Inactive:       954540 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        815392 kB
SwapTotal:     4192956 kB
SwapFree:      4174204 kB
Dirty:             864 kB
Writeback:           0 kB
Mapped:          15580 kB
Slab:            82444 kB
Committed_AS:  2883508 kB
PageTables:       1372 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= 66324 MiB
End job on node22 at 2009-03-29 08:35:58