Trace number 310494

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 106.21 106.247

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S2099846342-04-SAT.cnf
MD5SUM23ea53255de4a3778ef34ac8baaa8ebc
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.056991
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

106.18/106.24	s SATISFIABLE
106.18/106.24	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
106.18/106.24	v -25 -26 -27 28 29 -30 31 -32 33 -34 35 -36 37 38 39 40 41 42 43 44 45 -46 47
106.18/106.24	v -48 49 -50 -51 -52 53 -54 55 -56 57 58 59 60 -61 -62 63 64 -65 66 -67 -68 69
106.18/106.24	v 70 71 72 -73 74 -75 76 -77 -78 79 -80 -81 -82 83 -84 -85 -86 87 -88 -89 90 91
106.18/106.24	v 92 -93 94 95 96 -97 98 -99 -100 -101 -102 103 104 -105 106 107 108 -109 -110
106.18/106.24	v -111 -112 113 114 115 -116 117 -118 -119 120 -121 122 123 124 125 -126 -127
106.18/106.24	v -128 -129 130 -131 -132 133 -134 -135 136 -137 -138 -139 140 141 142 143 -144
106.18/106.24	v 145 146 147 -148 -149 -150 151 152 153 -154 155 -156 157 158 159 -160 161 162
106.18/106.24	v -163 -164 165 166 167 -168 169 170 -171 -172 -173 174 175 176 -177 -178 -179
106.18/106.24	v 180 181 -182 -183 -184 185 -186 -187 -188 -189 190 -191 -192 -193 194 195 196
106.18/106.24	v 197 -198 199 200 -201 -202 -203 -204 205 206 207 208 209 -210 211 212 213
106.18/106.24	v -214 215 -216 217 -218 219 -220 221 -222 -223 -224 -225 -226 -227 -228 -229
106.18/106.24	v -230 -231 -232 233 234 235 -236 237 -238 239 -240 241 -242 -243 244 -245 246
106.18/106.24	v 247 -248 249 -250 -251 252 -253 254 255 256 -257 -258 259 -260 -261 -262 -263
106.18/106.24	v -264 -265 266 -267 -268 269 270 -271 -272 -273 -274 -275 276 -277 278 279 280
106.18/106.24	v -281 282 -283 284 285 286 -287 -288 -289 290 291 -292 -293 294 -295 296 -297
106.18/106.24	v -298 299 300 -301 302 303 304 305 306 -307 -308 -309 -310 311 -312 313 -314
106.18/106.24	v 315 316 -317 -318 319 320 321 322 -323 324 325 326 327 -328 329 -330 331 332
106.18/106.24	v -333 -334 -335 -336 -337 338 -339 340 341 -342 343 -344 -345 346 -347 348
106.18/106.24	v -349 -350 -351 -352 353 -354 -355 356 -357 -358 -359 -360 361 -362 -363 -364
106.18/106.24	v 365 366 -367 368 369 370 371 -372 373 374 375 376 -377 378 -379 380 -381 382
106.18/106.24	v 383 -384 385 386 387 388 389 390 391 -392 -393 -394 395 -396 397 398 -399 400
106.18/106.24	v -401 402 -403 404 405 406 407 -408 409 410 411 412 413 -414 -415 416 417 -418
106.18/106.24	v -419 420 421 -422 -423 -424 425 426 -427 -428 429 430 -431 -432 -433 434 -435
106.18/106.24	v -436 437 438 439 -440 441 442 -443 -444 -445 -446 -447 -448 -449 450 -451
106.18/106.24	v -452 453 -454 -455 456 -457 -458 -459 -460 -461 -462 463 -464 465 -466 467
106.18/106.24	v -468 469 -470 -471 -472 -473 -474 475 476 477 478 -479 480 481 482 483 484
106.18/106.24	v -485 -486 -487 488 489 490 491 492 -493 494 495 -496 497 -498 499 500 501
106.18/106.24	v -502 -503 504 505 506 507 -508 -509 510 -511 -512 513 514 -515 516 -517 -518
106.18/106.24	v -519 -520 521 -522 523 524 525 -526 -527 -528 -529 -530 -531 -532 533 534 535
106.18/106.24	v -536 537 538 -539 540 541 542 -543 -544 545 546 -547 -548 549 550 -551 -552
106.18/106.24	v 553 -554 555 556 -557 -558 -559 -560 -561 562 -563 564 565 -566 567 568 569
106.18/106.24	v 570 571 572 -573 -574 -575 -576 -577 -578 579 580 -581 -582 -583 584 -585 586
106.18/106.24	v 587 588 -589 -590 -591 592 593 594 595 596 -597 -598 599 600 601 -602 603 604
106.18/106.24	v 605 606 -607 -608 -609 610 611 612 -613 614 -615 -616 617 -618 -619 -620 621
106.18/106.24	v 622 623 -624 625 626 -627 628 629 630 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/node30/watcher-310494-1172560111 -o ROOT/results/node30/solver-310494-1172560111 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310494-1172560111/picosat /tmp/evaluation/310494-1172560111/instance-310494-1172560111.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 1.00 3/77 20812
/proc/meminfo: memFree=1815520/2055920 swapFree=4143328/4192956
[pid=20812] ppid=20810 vsize=568 CPUtime=0
/proc/20812/stat : 20812 (picosat) R 20810 20812 20262 0 -1 4194304 81 0 0 0 0 0 0 0 18 0 1 0 249775150 581632 66 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/20812/statm: 142 66 40 102 0 37 0

[startup+0.106773 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 20812
/proc/meminfo: memFree=1815520/2055920 swapFree=4143328/4192956
[pid=20812] ppid=20810 vsize=836 CPUtime=0.1
/proc/20812/stat : 20812 (picosat) R 20810 20812 20262 0 -1 4194304 140 0 0 0 9 1 0 0 18 0 1 0 249775150 856064 123 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134522823 0 0 4096 0 0 0 0 17 1 0 0
/proc/20812/statm: 209 123 48 102 0 104 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 836

[startup+0.51483 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 20812
/proc/meminfo: memFree=1815520/2055920 swapFree=4143328/4192956
[pid=20812] ppid=20810 vsize=836 CPUtime=0.51
/proc/20812/stat : 20812 (picosat) R 20810 20812 20262 0 -1 4194304 148 0 0 0 50 1 0 0 22 0 1 0 249775150 856064 131 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525820 0 0 4096 0 0 0 0 17 1 0 0
/proc/20812/statm: 209 131 48 102 0 104 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 836

[startup+1.33495 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 20813
/proc/meminfo: memFree=1815064/2055920 swapFree=4143328/4192956
[pid=20812] ppid=20810 vsize=836 CPUtime=1.33
/proc/20812/stat : 20812 (picosat) R 20810 20812 20262 0 -1 4194304 161 0 0 0 132 1 0 0 25 0 1 0 249775150 856064 144 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134520135 0 0 4096 0 0 0 0 17 1 0 0
/proc/20812/statm: 209 144 48 102 0 104 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 836

[startup+2.97118 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 20813
/proc/meminfo: memFree=1814872/2055920 swapFree=4143328/4192956
[pid=20812] ppid=20810 vsize=980 CPUtime=2.96
/proc/20812/stat : 20812 (picosat) R 20810 20812 20262 0 -1 4194304 187 0 0 0 295 1 0 0 25 0 1 0 249775150 1003520 170 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134529782 0 0 4096 0 0 0 0 17 1 0 0
/proc/20812/statm: 245 170 48 102 0 140 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 980

[startup+6.25065 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 20813
/proc/meminfo: memFree=1814680/2055920 swapFree=4143328/4192956
[pid=20812] ppid=20810 vsize=1096 CPUtime=6.24
/proc/20812/stat : 20812 (picosat) R 20810 20812 20262 0 -1 4194304 210 0 0 0 623 1 0 0 25 0 1 0 249775150 1122304 193 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/20812/statm: 274 193 48 102 0 169 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 1096

[startup+12.7036 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 20813
/proc/meminfo: memFree=1814488/2055920 swapFree=4143328/4192956
[pid=20812] ppid=20810 vsize=1212 CPUtime=12.69
/proc/20812/stat : 20812 (picosat) R 20810 20812 20262 0 -1 4194304 253 0 0 0 1268 1 0 0 25 0 1 0 249775150 1241088 236 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525631 0 0 4096 0 0 0 0 17 1 0 0
/proc/20812/statm: 303 236 48 102 0 198 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1212

[startup+25.5094 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 20813
/proc/meminfo: memFree=1814360/2055920 swapFree=4143328/4192956
[pid=20812] ppid=20810 vsize=1452 CPUtime=25.49
/proc/20812/stat : 20812 (picosat) R 20810 20812 20262 0 -1 4194304 291 0 0 0 2548 1 0 0 25 0 1 0 249775150 1486848 274 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525835 0 0 4096 0 0 0 0 17 1 0 0
/proc/20812/statm: 363 274 48 102 0 258 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1452

[startup+51.1171 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 20813
/proc/meminfo: memFree=1814104/2055920 swapFree=4143328/4192956
[pid=20812] ppid=20810 vsize=1700 CPUtime=51.09
/proc/20812/stat : 20812 (picosat) R 20810 20812 20262 0 -1 4194304 356 0 0 0 5108 1 0 0 25 0 1 0 249775150 1740800 339 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/20812/statm: 425 339 48 102 0 320 0
Current children cumulated CPU time (s) 51.09
Current children cumulated vsize (KiB) 1700

[startup+102.33 s]
/proc/loadavg: 1.06 1.01 1.00 2/78 20813
/proc/meminfo: memFree=1813656/2055920 swapFree=4143328/4192956
[pid=20812] ppid=20810 vsize=2060 CPUtime=102.28
/proc/20812/stat : 20812 (picosat) R 20810 20812 20262 0 -1 4194304 451 0 0 0 10227 1 0 0 25 0 1 0 249775150 2109440 434 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134520163 0 0 4096 0 0 0 0 17 1 0 0
/proc/20812/statm: 515 434 48 102 0 410 0
Current children cumulated CPU time (s) 102.28
Current children cumulated vsize (KiB) 2060

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

[startup+103.253 s]
/proc/loadavg: 1.06 1.01 1.00 2/78 20813
/proc/meminfo: memFree=1813656/2055920 swapFree=4143328/4192956
[pid=20812] ppid=20810 vsize=2060 CPUtime=103.2
/proc/20812/stat : 20812 (picosat) R 20810 20812 20262 0 -1 4194304 451 0 0 0 10319 1 0 0 25 0 1 0 249775150 2109440 434 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134543546 0 0 4096 0 0 0 0 17 1 0 0
/proc/20812/statm: 515 434 48 102 0 410 0
Current children cumulated CPU time (s) 103.2
Current children cumulated vsize (KiB) 2060

[startup+104.893 s]
/proc/loadavg: 1.06 1.01 1.00 2/78 20813
/proc/meminfo: memFree=1813656/2055920 swapFree=4143328/4192956
[pid=20812] ppid=20810 vsize=2060 CPUtime=104.84
/proc/20812/stat : 20812 (picosat) R 20810 20812 20262 0 -1 4194304 451 0 0 0 10483 1 0 0 25 0 1 0 249775150 2109440 434 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525561 0 0 4096 0 0 0 0 17 1 0 0
/proc/20812/statm: 515 434 48 102 0 410 0
Current children cumulated CPU time (s) 104.84
Current children cumulated vsize (KiB) 2060

[startup+105.712 s]
/proc/loadavg: 1.06 1.01 1.00 2/78 20813
/proc/meminfo: memFree=1813656/2055920 swapFree=4143328/4192956
[pid=20812] ppid=20810 vsize=2060 CPUtime=105.66
/proc/20812/stat : 20812 (picosat) R 20810 20812 20262 0 -1 4194304 451 0 0 0 10565 1 0 0 25 0 1 0 249775150 2109440 434 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134522848 0 0 4096 0 0 0 0 17 1 0 0
/proc/20812/statm: 515 434 48 102 0 410 0
Current children cumulated CPU time (s) 105.66
Current children cumulated vsize (KiB) 2060

[startup+106.124 s]
/proc/loadavg: 1.05 1.01 1.00 2/78 20813
/proc/meminfo: memFree=1813656/2055920 swapFree=4143328/4192956
[pid=20812] ppid=20810 vsize=2060 CPUtime=106.07
/proc/20812/stat : 20812 (picosat) R 20810 20812 20262 0 -1 4194304 451 0 0 0 10606 1 0 0 25 0 1 0 249775150 2109440 434 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134529080 0 0 4096 0 0 0 0 17 1 0 0
/proc/20812/statm: 515 434 48 102 0 410 0
Current children cumulated CPU time (s) 106.07
Current children cumulated vsize (KiB) 2060

[startup+106.226 s]
/proc/loadavg: 1.05 1.01 1.00 2/78 20813
/proc/meminfo: memFree=1813656/2055920 swapFree=4143328/4192956
[pid=20812] ppid=20810 vsize=2060 CPUtime=106.18
/proc/20812/stat : 20812 (picosat) R 20810 20812 20262 0 -1 4194304 451 0 0 0 10617 1 0 0 25 0 1 0 249775150 2109440 434 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/20812/statm: 515 434 48 102 0 410 0
Current children cumulated CPU time (s) 106.18
Current children cumulated vsize (KiB) 2060

Child status: 10
Real time (s): 106.247
CPU time (s): 106.21
CPU user time (s): 106.19
CPU system time (s): 0.019996
CPU usage (%): 99.9653
Max. virtual memory (cumulated for all children) (KiB): 2068

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 106.19
system time used= 0.019996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 457
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= 2123

runsolver used 0.132979 second user time and 0.243962 second system time

The end

Launcher Data (download as text)

Begin job on node30 on Tue Feb 27 07:08:31 UTC 2007

IDJOB= 310494
IDBENCH= 20289
IDSOLVER= 106
FILE ID= node30/310494-1172560111

PBS_JOBID= 3971878

Free space on /tmp= 66558 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S2099846342-04-SAT.cnf
COMMAND LINE= /tmp/evaluation/310494-1172560111/picosat /tmp/evaluation/310494-1172560111/instance-310494-1172560111.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node30/watcher-310494-1172560111 -o ROOT/results/node30/solver-310494-1172560111 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310494-1172560111/picosat /tmp/evaluation/310494-1172560111/instance-310494-1172560111.cnf            

META MD5SUM SOLVER= 1cb12d44dc66ecc4d20a168f5cfd1323
MD5SUM BENCH=  23ea53255de4a3778ef34ac8baaa8ebc

RANDOM SEED= 280151986

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node30.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		: 3000.270
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		: 3000.270
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:       1815928 kB
Buffers:         34624 kB
Cached:         131424 kB
SwapCached:      17280 kB
Active:         116136 kB
Inactive:        84796 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1815928 kB
SwapTotal:     4192956 kB
SwapFree:      4143328 kB
Dirty:             624 kB
Writeback:           0 kB
Mapped:          30236 kB
Slab:            24536 kB
Committed_AS:   735656 kB
PageTables:       1884 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= 66558 MiB

End job on node30 on Tue Feb 27 07:10:17 UTC 2007