Trace number 299957

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
picosat 535SAT 32.823 32.8319

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 benchmark0.005998
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)

32.77/32.82	s SATISFIABLE
32.77/32.82	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
32.77/32.82	v 27 28 -29 30 31 32 33 -34 35 -36 37 -38 39 -40 -41 42 43 -44 45 46 47 48 -49
32.77/32.82	v -50 51 -52 53 54 55 -56 -57 -58 -59 -60 61 62 63 -64 -65 66 -67 -68 -69 70 71
32.77/32.82	v 72 -73 74 75 76 -77 78 -79 80 -81 82 -83 -84 85 86 87 -88 -89 90 91 92 -93
32.77/32.82	v -94 95 -96 -97 -98 99 100 -101 102 -103 104 105 -106 107 108 -109 -110 111
32.77/32.82	v -112 -113 114 115 -116 -117 118 -119 120 121 122 123 124 -125 -126 127 -128
32.77/32.82	v -129 -130 -131 132 133 134 -135 -136 -137 138 139 140 141 142 -143 144 -145
32.77/32.82	v 146 147 -148 149 150 -151 152 -153 -154 155 -156 -157 158 -159 160 161 162
32.77/32.82	v -163 164 -165 166 167 -168 169 -170 -171 172 173 174 175 176 -177 178 179 180
32.77/32.82	v -181 -182 -183 -184 -185 186 -187 -188 189 190 191 192 -193 -194 195 -196 197
32.77/32.82	v -198 -199 200 -201 -202 203 -204 -205 -206 207 208 209 -210 211 212 213 -214
32.77/32.82	v 215 216 -217 -218 219 -220 -221 222 223 224 225 226 227 228 -229 230 -231 232
32.77/32.82	v -233 234 -235 236 237 238 -239 240 241 242 -243 -244 -245 -246 247 -248 -249
32.77/32.82	v -250 -251 252 253 254 255 -256 257 -258 259 260 -261 -262 -263 -264 265 -266
32.77/32.82	v 267 -268 269 -270 -271 -272 -273 -274 275 -276 277 -278 279 280 281 -282 283
32.77/32.82	v -284 -285 -286 287 -288 289 290 -291 -292 -293 294 -295 296 -297 -298 299
32.77/32.82	v -300 -301 302 -303 -304 305 -306 307 -308 309 -310 311 312 313 -314 -315 316
32.77/32.82	v -317 -318 -319 320 321 -322 -323 -324 325 326 327 -328 -329 330 -331 -332
32.77/32.82	v -333 -334 -335 336 -337 338 339 340 -341 -342 343 344 -345 -346 -347 -348 349
32.77/32.82	v 350 -351 352 -353 -354 -355 -356 357 -358 359 -360 361 -362 -363 -364 365 366
32.77/32.82	v -367 368 -369 370 -371 -372 373 374 375 -376 -377 378 379 380 381 382 383 384
32.77/32.82	v 385 386 -387 388 -389 390 391 -392 393 -394 -395 -396 397 -398 -399 400 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node16/watcher-299957-1171880547 -o ROOT/results/node16/solver-299957-1171880547 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/299957-1171880547/picosat /tmp/evaluation/299957-1171880547/instance-299957-1171880547.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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 1.06 3/77 28837
/proc/meminfo: memFree=954248/2055920 swapFree=4192812/4192956
[pid=28837] ppid=28835 vsize=568 CPUtime=0
/proc/28837/stat : 28837 (picosat) R 28835 28837 28433 0 -1 4194304 74 0 0 0 0 0 0 0 18 0 1 0 208009072 581632 59 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/28837/statm: 142 59 40 102 0 37 0

[startup+0.106689 s]
/proc/loadavg: 1.00 1.00 1.06 3/77 28837
/proc/meminfo: memFree=954248/2055920 swapFree=4192812/4192956
[pid=28837] ppid=28835 vsize=708 CPUtime=0.09
/proc/28837/stat : 28837 (picosat) R 28835 28837 28433 0 -1 4194304 130 0 0 0 9 0 0 0 18 0 1 0 208009072 724992 113 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525807 0 0 4096 0 0 0 0 17 1 0 0
/proc/28837/statm: 177 113 48 102 0 72 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 708

[startup+0.514643 s]
/proc/loadavg: 1.00 1.00 1.06 3/77 28837
/proc/meminfo: memFree=954248/2055920 swapFree=4192812/4192956
[pid=28837] ppid=28835 vsize=836 CPUtime=0.5
/proc/28837/stat : 28837 (picosat) R 28835 28837 28433 0 -1 4194304 144 0 0 0 50 0 0 0 21 0 1 0 208009072 856064 127 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134529880 0 0 4096 0 0 0 0 17 1 0 0
/proc/28837/statm: 209 127 48 102 0 104 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 836

[startup+1.33455 s]
/proc/loadavg: 1.00 1.00 1.06 2/78 28838
/proc/meminfo: memFree=953864/2055920 swapFree=4192812/4192956
[pid=28837] ppid=28835 vsize=836 CPUtime=1.33
/proc/28837/stat : 28837 (picosat) R 28835 28837 28433 0 -1 4194304 161 0 0 0 132 1 0 0 25 0 1 0 208009072 856064 144 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525949 0 0 4096 0 0 0 0 17 1 0 0
/proc/28837/statm: 209 144 48 102 0 104 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 836

[startup+2.97336 s]
/proc/loadavg: 1.00 1.00 1.06 2/78 28838
/proc/meminfo: memFree=953608/2055920 swapFree=4192812/4192956
[pid=28837] ppid=28835 vsize=976 CPUtime=2.97
/proc/28837/stat : 28837 (picosat) R 28835 28837 28433 0 -1 4194304 181 0 0 0 296 1 0 0 25 0 1 0 208009072 999424 164 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525814 0 0 4096 0 0 0 0 17 1 0 0
/proc/28837/statm: 244 164 48 102 0 139 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 976

[startup+6.24998 s]
/proc/loadavg: 1.00 1.00 1.06 2/78 28838
/proc/meminfo: memFree=953424/2055920 swapFree=4192812/4192956
[pid=28837] ppid=28835 vsize=1096 CPUtime=6.24
/proc/28837/stat : 28837 (picosat) R 28835 28837 28433 0 -1 4194304 211 0 0 0 623 1 0 0 25 0 1 0 208009072 1122304 194 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525941 0 0 4096 0 0 0 0 17 1 0 0
/proc/28837/statm: 274 194 48 102 0 169 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 1096

[startup+12.7012 s]
/proc/loadavg: 1.00 1.00 1.06 2/78 28838
/proc/meminfo: memFree=953248/2055920 swapFree=4192812/4192956
[pid=28837] ppid=28835 vsize=1220 CPUtime=12.69
/proc/28837/stat : 28837 (picosat) R 28835 28837 28433 0 -1 4194304 248 0 0 0 1268 1 0 0 25 0 1 0 208009072 1249280 231 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134522823 0 0 4096 0 0 0 0 17 1 0 0
/proc/28837/statm: 305 231 48 102 0 200 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1220

[startup+25.5048 s]
/proc/loadavg: 1.00 1.00 1.06 2/78 28838
/proc/meminfo: memFree=952992/2055920 swapFree=4192812/4192956
[pid=28837] ppid=28835 vsize=1488 CPUtime=25.49
/proc/28837/stat : 28837 (picosat) R 28835 28837 28433 0 -1 4194304 300 0 0 0 2548 1 0 0 25 0 1 0 208009072 1523712 283 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134529486 0 0 4096 0 0 0 0 17 1 0 0
/proc/28837/statm: 372 283 48 102 0 267 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1488

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

[startup+26.2227 s]
/proc/loadavg: 1.00 1.00 1.06 2/78 28838
/proc/meminfo: memFree=952992/2055920 swapFree=4192812/4192956
[pid=28837] ppid=28835 vsize=1488 CPUtime=26.21
/proc/28837/stat : 28837 (picosat) R 28835 28837 28433 0 -1 4194304 300 0 0 0 2620 1 0 0 25 0 1 0 208009072 1523712 283 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525816 0 0 4096 0 0 0 0 17 1 0 0
/proc/28837/statm: 372 283 48 102 0 267 0
Current children cumulated CPU time (s) 26.21
Current children cumulated vsize (KiB) 1488

[startup+29.5023 s]
/proc/loadavg: 1.00 1.00 1.06 2/78 28838
/proc/meminfo: memFree=952992/2055920 swapFree=4192812/4192956
[pid=28837] ppid=28835 vsize=1488 CPUtime=29.49
/proc/28837/stat : 28837 (picosat) R 28835 28837 28433 0 -1 4194304 304 0 0 0 2948 1 0 0 25 0 1 0 208009072 1523712 287 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134531364 0 0 4096 0 0 0 0 17 1 0 0
/proc/28837/statm: 372 287 48 102 0 267 0
Current children cumulated CPU time (s) 29.49
Current children cumulated vsize (KiB) 1488

[startup+31.1381 s]
/proc/loadavg: 1.00 1.00 1.06 2/78 28838
/proc/meminfo: memFree=952992/2055920 swapFree=4192812/4192956
[pid=28837] ppid=28835 vsize=1488 CPUtime=31.13
/proc/28837/stat : 28837 (picosat) R 28835 28837 28433 0 -1 4194304 308 0 0 0 3112 1 0 0 25 0 1 0 208009072 1523712 291 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134549273 0 0 4096 0 0 0 0 17 1 0 0
/proc/28837/statm: 372 291 48 102 0 267 0
Current children cumulated CPU time (s) 31.13
Current children cumulated vsize (KiB) 1488

[startup+31.958 s]
/proc/loadavg: 1.00 1.00 1.05 2/78 28838
/proc/meminfo: memFree=952992/2055920 swapFree=4192812/4192956
[pid=28837] ppid=28835 vsize=1488 CPUtime=31.95
/proc/28837/stat : 28837 (picosat) R 28835 28837 28433 0 -1 4194304 322 0 0 0 3194 1 0 0 25 0 1 0 208009072 1523712 305 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134520543 0 0 4096 0 0 0 0 17 1 0 0
/proc/28837/statm: 372 305 48 102 0 267 0
Current children cumulated CPU time (s) 31.95
Current children cumulated vsize (KiB) 1488

[startup+32.366 s]
/proc/loadavg: 1.00 1.00 1.05 2/78 28838
/proc/meminfo: memFree=952992/2055920 swapFree=4192812/4192956
[pid=28837] ppid=28835 vsize=1488 CPUtime=32.35
/proc/28837/stat : 28837 (picosat) R 28835 28837 28433 0 -1 4194304 323 0 0 0 3234 1 0 0 25 0 1 0 208009072 1523712 306 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134529092 0 0 4096 0 0 0 0 17 1 0 0
/proc/28837/statm: 372 306 48 102 0 267 0
Current children cumulated CPU time (s) 32.35
Current children cumulated vsize (KiB) 1488

[startup+32.7779 s]
/proc/loadavg: 1.00 1.00 1.05 2/78 28838
/proc/meminfo: memFree=952928/2055920 swapFree=4192812/4192956
[pid=28837] ppid=28835 vsize=1488 CPUtime=32.77
/proc/28837/stat : 28837 (picosat) R 28835 28837 28433 0 -1 4194304 323 0 0 0 3276 1 0 0 25 0 1 0 208009072 1523712 306 18446744073709551615 134512640 134931368 4294956624 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/28837/statm: 372 306 48 102 0 267 0
Current children cumulated CPU time (s) 32.77
Current children cumulated vsize (KiB) 1488

Child status: 10
Real time (s): 32.8319
CPU time (s): 32.823
CPU user time (s): 32.808
CPU system time (s): 0.014997
CPU usage (%): 99.973
Max. virtual memory (cumulated for all children) (KiB): 1488

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 32.808
system time used= 0.014997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 329
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= 7
involuntary context switches= 33

runsolver used 0.037994 second user time and 0.083987 second system time

The end

Launcher Data (download as text)

Begin job on node16 on Mon Feb 19 10:22:27 UTC 2007

IDJOB= 299957
IDBENCH= 20023
IDSOLVER= 106
FILE ID= node16/299957-1171880547

PBS_JOBID= 3839432

Free space on /tmp= 66550 MiB

SOLVER NAME= picosat 535
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/299957-1171880547/picosat /tmp/evaluation/299957-1171880547/instance-299957-1171880547.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node16/watcher-299957-1171880547 -o ROOT/results/node16/solver-299957-1171880547 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/299957-1171880547/picosat /tmp/evaluation/299957-1171880547/instance-299957-1171880547.cnf            

META MD5SUM SOLVER= 1cb12d44dc66ecc4d20a168f5cfd1323
MD5SUM BENCH=  fd7d232d07ea82b35604ae65ebcd0d41

RANDOM SEED= 790272649

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node16.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		: 3000.281
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		: 3000.281
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:        954656 kB
Buffers:         69524 kB
Cached:         898456 kB
SwapCached:          0 kB
Active:         352624 kB
Inactive:       668976 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        954656 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             516 kB
Writeback:           0 kB
Mapped:          72492 kB
Slab:            65308 kB
Committed_AS:   942716 kB
PageTables:       1720 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= 66550 MiB

End job on node16 on Mon Feb 19 10:23:00 UTC 2007