Trace number 1784243

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
MiniSat 2.1 (Sat-race'08 Edition)SAT 1.14082 1.14102

General information on the benchmark

NameCRAFTED/modcircuits/
mod5block_1var_7gates.cnf
MD5SUM7bf73d9c0408bae76b2e1355fb2178d8
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.38494
Satisfiable
(Un)Satisfiability was proved
Number of variables353
Number of clauses46967
Sum of the clauses size271042
Maximum clause length23
Minimum clause length1
Number of clauses of size 164
Number of clauses of size 21176
Number of clauses of size 31
Number of clauses of size 41349
Number of clauses of size 53139
Number of clauses of size over 541238

Solver Data 

0.00/0.00	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.01/0.05	c |  Number of variables:           353                                         |
0.01/0.05	c |  Number of clauses:           46903                                         |
0.01/0.05	c |  Parse time:                   0.05 s                                       |
0.39/0.46	c |  Simplification time:          0.41 s                                       |
0.39/0.46	c |                                                                             |
0.39/0.46	c ============================[ Search Statistics ]==============================
0.39/0.46	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.39/0.46	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.39/0.46	c ===============================================================================
0.39/0.46	c |       100 |     231    12338    65857 |     4523      100     16 | 19.832 % |
0.39/0.46	c |       250 |     227    12338    65857 |     4976      246     12 | 20.966 % |
0.39/0.47	c |       475 |     227    12338    65857 |     5473      471     12 | 20.966 % |
0.39/0.47	c |       812 |     227    12338    65857 |     6021      808     13 | 20.965 % |
0.39/0.49	c |      1318 |     226    12338    65857 |     6623     1313     14 | 21.247 % |
0.49/0.50	c |      2077 |     225    12338    65857 |     7285     2071     15 | 21.531 % |
0.49/0.53	c |      3216 |     225    12338    65857 |     8014     3210     15 | 21.531 % |
0.49/0.58	c |      4924 |     224    12338    65857 |     8815     4917     15 | 21.817 % |
0.59/0.67	c |      7486 |     224    12338    65857 |     9697     7479     16 | 21.815 % |
0.79/0.83	c |     11330 |     224    12338    65857 |    10667     6408     16 | 21.821 % |
1.00/1.06	c |     17096 |     224    12007    64339 |    11733     6770     16 | 21.819 % |
1.10/1.13	c ===============================================================================
1.10/1.13	c restarts              : 63
1.10/1.13	c conflicts             : 18851          (16729 /sec)
1.10/1.13	c decisions             : 29606          (26274 /sec)
1.10/1.13	c propagations          : 464116         (411878 /sec)
1.10/1.13	c conflict literals     : 318213         (18.66 % deleted)
1.10/1.13	c Memory used           : 15.01 MB
1.10/1.13	c CPU time              : 1.12683 s
1.10/1.13	c 
1.10/1.13	s SATISFIABLE
1.10/1.13	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 -39 -40 -41 -42 43 -44 45 -46 -47 -48 -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 -121 122 -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 -203 204 205 206 207 208 209 210 211 212 213 214 215 216 -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 -257 258 -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 -291 292 293 294 295 296 297 298 299 -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 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1784243-1241926500/watcher-1784243-1241926500 -o /tmp/evaluation-result-1784243-1241926500/solver-1784243-1241926500 -C 5000 -W 6000 -M 1800 HOME/minisat HOME/instance-1784243-1241926500.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 27395
/proc/meminfo: memFree=1704448/2055920 swapFree=4110764/4192956
[pid=27395] ppid=27393 vsize=7468 CPUtime=0
/proc/27395/stat : 27395 (minisat) R 27393 27395 24021 0 -1 4194304 411 0 0 0 0 0 0 0 18 0 1 0 220683471 7647232 395 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/27395/statm: 1867 396 63 219 0 1645 0

[startup+0.018371 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 27395
/proc/meminfo: memFree=1704448/2055920 swapFree=4110764/4192956
[pid=27395] ppid=27393 vsize=8316 CPUtime=0.01
/proc/27395/stat : 27395 (minisat) R 27393 27395 24021 0 -1 4194304 703 0 0 0 1 0 0 0 18 0 1 0 220683471 8515584 687 1992294400 4194304 5092341 548682068848 18446744073709551615 4515195 0 0 4096 3 0 0 0 17 1 0 0
/proc/27395/statm: 2079 688 63 219 0 1857 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 8316

[startup+0.101378 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 27395
/proc/meminfo: memFree=1704448/2055920 swapFree=4110764/4192956
[pid=27395] ppid=27393 vsize=10420 CPUtime=0.09
/proc/27395/stat : 27395 (minisat) R 27393 27395 24021 0 -1 4194304 1526 0 0 0 9 0 0 0 18 0 1 0 220683471 10670080 1469 1992294400 4194304 5092341 548682068848 18446744073709551615 4247904 0 0 4096 3 0 0 0 17 1 0 0
/proc/27395/statm: 2605 1469 88 219 0 2383 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10420

[startup+0.301397 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 27395
/proc/meminfo: memFree=1704448/2055920 swapFree=4110764/4192956
[pid=27395] ppid=27393 vsize=10420 CPUtime=0.29
/proc/27395/stat : 27395 (minisat) R 27393 27395 24021 0 -1 4194304 1530 0 0 0 29 0 0 0 19 0 1 0 220683471 10670080 1473 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/27395/statm: 2605 1473 88 219 0 2383 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10420

[startup+0.701434 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 27395
/proc/meminfo: memFree=1704448/2055920 swapFree=4110764/4192956
[pid=27395] ppid=27393 vsize=10176 CPUtime=0.69
/proc/27395/stat : 27395 (minisat) R 27393 27395 24021 0 -1 4194304 1790 0 0 0 69 0 0 0 22 0 1 0 220683471 10420224 1291 1992294400 4194304 5092341 548682068848 18446744073709551615 4249992 0 0 4096 3 0 0 0 17 1 0 0
/proc/27395/statm: 2544 1291 100 219 0 2322 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10176

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

[startup+1.10647 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 27396
/proc/meminfo: memFree=1699384/2055920 swapFree=4110764/4192956
[pid=27395] ppid=27393 vsize=15364 CPUtime=1.1
/proc/27395/stat : 27395 (minisat) R 27393 27395 24021 0 -1 4194304 2302 0 0 0 109 1 0 0 25 0 1 0 220683471 15732736 1547 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/27395/statm: 3841 1547 100 219 0 3619 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 15364

Child status: 10
Real time (s): 1.14102
CPU time (s): 1.14082
CPU user time (s): 1.12683
CPU system time (s): 0.013997
CPU usage (%): 99.9826
Max. virtual memory (cumulated for all children) (KiB): 15364

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.12683
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2327
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= 4

runsolver used 0.003999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node14 at 2009-05-10 05:35:00
IDJOB=1784243
IDBENCH=71137
IDSOLVER=608
FILE ID=node14/1784243-1241926500
PBS_JOBID= 9264907
Free space on /tmp= 66016 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/CRAFTED/modcircuits/mod5block_1var_7gates.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1784243-1241926500/watcher-1784243-1241926500 -o /tmp/evaluation-result-1784243-1241926500/solver-1784243-1241926500 -C 5000 -W 6000 -M 1800  HOME/minisat HOME/instance-1784243-1241926500.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 7bf73d9c0408bae76b2e1355fb2178d8
RANDOM SEED=1117481658

node14.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		: 3000.256
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	: 5931.00
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		: 3000.256
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:       1704928 kB
Buffers:         54708 kB
Cached:         150564 kB
SwapCached:      77132 kB
Active:         101696 kB
Inactive:       182688 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1704928 kB
SwapTotal:     4192956 kB
SwapFree:      4110764 kB
Dirty:            2316 kB
Writeback:           0 kB
Mapped:          13548 kB
Slab:            52600 kB
Committed_AS:   674036 kB
PageTables:       1448 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= 66016 MiB
End job on node14 at 2009-05-10 05:35:01