Trace number 426849

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, and are wall clock time (not CPU 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
SAT7 2007-02-08SAT 19.1881 19.1946

General information on the benchmark

Namerandom/OnTreshold/3SAT/v400/
unif-k3-r4.26-v400-c1704-S2048803580-17.SAT.shuffled.cnf
MD5SUMfd7d232d07ea82b35604ae65ebcd0d41
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 variables400
Number of clauses1704
Sum of the clauses size5112
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31704
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c Starting solver ...
0.00/0.01	c Restarting after 100 conflicts
0.00/0.02	c Restarting after 250 conflicts
0.00/0.03	c Restarting after 476 conflicts
0.04/0.05	c Restarting after 813 conflicts
0.04/0.08	c Restarting after 1319 conflicts
0.10/0.12	c Restarting after 2080 conflicts
0.10/0.19	c Restarting after 3221 conflicts
0.29/0.30	c Restarting after 4929 conflicts
0.39/0.47	c Restarting after 7491 conflicts
0.69/0.73	c Restarting after 11335 conflicts
1.10/1.12	c Restarting after 17102 conflicts
1.69/1.73	c Restarting after 25751 conflicts
2.59/2.67	c Restarting after 38727 conflicts
4.09/4.15	c Restarting after 58188 conflicts
6.29/6.36	c Restarting after 87380 conflicts
9.59/9.69	c Restarting after 131169 conflicts
14.89/14.92	c Restarting after 196856 conflicts
19.09/19.19	s SATISFIABLE
19.09/19.19	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 -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 -379 380 381 382 -383 -384 -385 386 -387 388 389 390 391 -392 393 394 395 -396 -397 398 -399 400 
19.09/19.19	v 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node43/watcher-426849-1177829488 -o ROOT/results/node43/solver-426849-1177829488 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/426849-1177829488/sat7_bin /tmp/evaluation/426849-1177829488/instance-426849-1177829488.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): 7500 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: 0.92 0.98 1.00 3/77 18406
/proc/meminfo: memFree=1469320/2055920 swapFree=4158592/4192956
[pid=18406] ppid=18404 vsize=1200 CPUtime=0
/proc/18406/stat : 18406 (sat7_bin) R 18404 18406 17667 0 -1 4194304 140 0 0 0 0 0 0 0 18 0 1 0 230860597 1228800 124 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134756106 0 0 4096 0 0 0 0 17 1 0 0
/proc/18406/statm: 300 124 87 220 0 77 0

[startup+0.0453279 s]
/proc/loadavg: 0.92 0.98 1.00 3/77 18406
/proc/meminfo: memFree=1469320/2055920 swapFree=4158592/4192956
[pid=18406] ppid=18404 vsize=1464 CPUtime=0.04
/proc/18406/stat : 18406 (sat7_bin) R 18404 18406 17667 0 -1 4194304 191 0 0 0 4 0 0 0 18 0 1 0 230860597 1499136 175 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532467 0 0 4096 0 0 0 0 17 1 0 0
/proc/18406/statm: 366 175 95 220 0 143 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1464

[startup+0.102332 s]
/proc/loadavg: 0.92 0.98 1.00 3/77 18406
/proc/meminfo: memFree=1469320/2055920 swapFree=4158592/4192956
[pid=18406] ppid=18404 vsize=1464 CPUtime=0.1
/proc/18406/stat : 18406 (sat7_bin) R 18404 18406 17667 0 -1 4194304 202 0 0 0 10 0 0 0 18 0 1 0 230860597 1499136 186 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134579359 0 0 4096 0 0 0 0 17 1 0 0
/proc/18406/statm: 366 186 95 220 0 143 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1464

[startup+0.30135 s]
/proc/loadavg: 0.92 0.98 1.00 3/77 18406
/proc/meminfo: memFree=1469320/2055920 swapFree=4158592/4192956
[pid=18406] ppid=18404 vsize=1464 CPUtime=0.29
/proc/18406/stat : 18406 (sat7_bin) R 18404 18406 17667 0 -1 4194304 219 0 0 0 29 0 0 0 19 0 1 0 230860597 1499136 203 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134536575 0 0 4096 0 0 0 0 17 1 0 0
/proc/18406/statm: 366 203 95 220 0 143 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1464

[startup+0.701385 s]
/proc/loadavg: 0.92 0.98 1.00 3/77 18406
/proc/meminfo: memFree=1469320/2055920 swapFree=4158592/4192956
[pid=18406] ppid=18404 vsize=1464 CPUtime=0.69
/proc/18406/stat : 18406 (sat7_bin) R 18404 18406 17667 0 -1 4194304 242 0 0 0 69 0 0 0 22 0 1 0 230860597 1499136 226 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532373 0 0 4096 0 0 0 0 17 1 0 0
/proc/18406/statm: 366 226 95 220 0 143 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1464

[startup+1.50146 s]
/proc/loadavg: 0.92 0.98 1.00 2/78 18407
/proc/meminfo: memFree=1468672/2055920 swapFree=4158592/4192956
[pid=18406] ppid=18404 vsize=1980 CPUtime=1.49
/proc/18406/stat : 18406 (sat7_bin) R 18404 18406 17667 0 -1 4194304 268 0 0 0 149 0 0 0 25 0 1 0 230860597 2027520 252 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532383 0 0 4096 0 0 0 0 17 1 0 0
/proc/18406/statm: 495 252 95 220 0 272 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1980

[startup+3.10159 s]
/proc/loadavg: 0.92 0.98 1.00 2/78 18407
/proc/meminfo: memFree=1468416/2055920 swapFree=4158592/4192956
[pid=18406] ppid=18404 vsize=1980 CPUtime=3.09
/proc/18406/stat : 18406 (sat7_bin) R 18404 18406 17667 0 -1 4194304 297 0 0 0 309 0 0 0 25 0 1 0 230860597 2027520 281 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532383 0 0 4096 0 0 0 0 17 1 0 0
/proc/18406/statm: 495 281 95 220 0 272 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1980

[startup+6.30187 s]
/proc/loadavg: 0.93 0.98 1.00 2/78 18407
/proc/meminfo: memFree=1468160/2055920 swapFree=4158592/4192956
[pid=18406] ppid=18404 vsize=2112 CPUtime=6.29
/proc/18406/stat : 18406 (sat7_bin) R 18404 18406 17667 0 -1 4194304 334 0 0 0 629 0 0 0 25 0 1 0 230860597 2162688 318 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134528648 0 0 4096 0 0 0 0 17 1 0 0
/proc/18406/statm: 528 318 95 220 0 305 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2112

[startup+12.7014 s]
/proc/loadavg: 0.93 0.98 1.00 2/78 18407
/proc/meminfo: memFree=1467904/2055920 swapFree=4158592/4192956
[pid=18406] ppid=18404 vsize=2112 CPUtime=12.69
/proc/18406/stat : 18406 (sat7_bin) R 18404 18406 17667 0 -1 4194304 383 0 0 0 1269 0 0 0 25 0 1 0 230860597 2162688 367 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134529565 0 0 4096 0 0 0 0 17 1 0 0
/proc/18406/statm: 528 367 95 220 0 305 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2112

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

[startup+15.9017 s]
/proc/loadavg: 0.94 0.98 1.00 2/78 18407
/proc/meminfo: memFree=1467840/2055920 swapFree=4158592/4192956
[pid=18406] ppid=18404 vsize=3140 CPUtime=15.89
/proc/18406/stat : 18406 (sat7_bin) R 18404 18406 17667 0 -1 4194304 404 0 0 0 1589 0 0 0 25 0 1 0 230860597 3215360 388 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532467 0 0 4096 0 0 0 0 17 1 0 0
/proc/18406/statm: 785 388 95 220 0 562 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 3140

[startup+17.5018 s]
/proc/loadavg: 0.94 0.98 1.00 2/78 18407
/proc/meminfo: memFree=1467776/2055920 swapFree=4158592/4192956
[pid=18406] ppid=18404 vsize=3140 CPUtime=17.49
/proc/18406/stat : 18406 (sat7_bin) R 18404 18406 17667 0 -1 4194304 413 0 0 0 1749 0 0 0 25 0 1 0 230860597 3215360 397 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532412 0 0 4096 0 0 0 0 17 1 0 0
/proc/18406/statm: 785 397 95 220 0 562 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 3140

[startup+18.3019 s]
/proc/loadavg: 0.94 0.98 1.00 2/78 18407
/proc/meminfo: memFree=1467776/2055920 swapFree=4158592/4192956
[pid=18406] ppid=18404 vsize=3140 CPUtime=18.29
/proc/18406/stat : 18406 (sat7_bin) R 18404 18406 17667 0 -1 4194304 416 0 0 0 1829 0 0 0 25 0 1 0 230860597 3215360 400 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134532688 0 0 4096 0 0 0 0 17 1 0 0
/proc/18406/statm: 785 400 95 220 0 562 0
Current children cumulated CPU time (s) 18.29
Current children cumulated vsize (KiB) 3140

[startup+18.706 s]
/proc/loadavg: 0.94 0.98 1.00 2/78 18407
/proc/meminfo: memFree=1467712/2055920 swapFree=4158592/4192956
[pid=18406] ppid=18404 vsize=3140 CPUtime=18.69
/proc/18406/stat : 18406 (sat7_bin) R 18404 18406 17667 0 -1 4194304 418 0 0 0 1869 0 0 0 25 0 1 0 230860597 3215360 402 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134540105 0 0 4096 0 0 0 0 17 1 0 0
/proc/18406/statm: 785 402 95 220 0 562 0
Current children cumulated CPU time (s) 18.69
Current children cumulated vsize (KiB) 3140

[startup+19.102 s]
/proc/loadavg: 0.94 0.98 1.00 2/78 18407
/proc/meminfo: memFree=1467712/2055920 swapFree=4158592/4192956
[pid=18406] ppid=18404 vsize=3140 CPUtime=19.09
/proc/18406/stat : 18406 (sat7_bin) R 18404 18406 17667 0 -1 4194304 421 0 0 0 1909 0 0 0 25 0 1 0 230860597 3215360 405 18446744073709551615 134512640 135417445 4294956672 18446744073709551615 134536755 0 0 4096 0 0 0 0 17 1 0 0
/proc/18406/statm: 785 405 95 220 0 562 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 3140

Child status: 10
Real time (s): 19.1946
CPU time (s): 19.1881
CPU user time (s): 19.1821
CPU system time (s): 0.005999
CPU usage (%): 99.9662
Max. virtual memory (cumulated for all children) (KiB): 3140

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 19.1821
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 422
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= 8
involuntary context switches= 29

runsolver used 0.017997 second user time and 0.050992 second system time

The end

Launcher Data (download as text)

Begin job on node43 on Sun Apr 29 06:51:28 UTC 2007

IDJOB= 426849
IDBENCH= 20023
IDSOLVER= 183
FILE ID= node43/426849-1177829488

PBS_JOBID= 4718253

Free space on /tmp= 66563 MiB

SOLVER NAME= SAT7 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v400/unif-k3-r4.26-v400-c1704-S2048803580-17.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/426849-1177829488/sat7_bin /tmp/evaluation/426849-1177829488/instance-426849-1177829488.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node43/watcher-426849-1177829488 -o ROOT/results/node43/solver-426849-1177829488 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/426849-1177829488/sat7_bin /tmp/evaluation/426849-1177829488/instance-426849-1177829488.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  fd7d232d07ea82b35604ae65ebcd0d41

RANDOM SEED= 388253659

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node43.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.218
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		: 3000.218
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:       1469664 kB
Buffers:         54948 kB
Cached:         433360 kB
SwapCached:       2856 kB
Active:         301524 kB
Inactive:       210816 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1469664 kB
SwapTotal:     4192956 kB
SwapFree:      4158592 kB
Dirty:            1196 kB
Writeback:           0 kB
Mapped:          31812 kB
Slab:            59348 kB
Committed_AS:  2732672 kB
PageTables:       1896 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= 66563 MiB

End job on node43 on Sun Apr 29 06:51:47 UTC 2007