Trace number 310535

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 3.37949 3.38169

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S1244126495-18-SAT.cnf
MD5SUM7170ef62ab1f0b3de97654e24bebe902
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.010998
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)

3.26/3.38	s SATISFIABLE
3.26/3.38	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
3.26/3.38	v 25 26 -27 -28 29 -30 31 -32 33 -34 35 -36 37 -38 -39 40 -41 -42 43 44 -45 -46
3.26/3.38	v 47 -48 49 -50 -51 -52 -53 -54 55 -56 -57 58 -59 -60 61 62 63 -64 -65 -66 67
3.26/3.38	v -68 -69 70 71 -72 73 74 75 76 -77 78 79 -80 -81 -82 83 84 85 -86 87 88 -89
3.26/3.38	v -90 -91 92 93 94 95 96 -97 -98 99 -100 101 -102 103 104 -105 -106 -107 -108
3.26/3.38	v 109 110 -111 112 -113 114 -115 116 -117 -118 119 120 -121 -122 123 124 125
3.26/3.38	v 126 -127 128 -129 -130 131 -132 -133 134 -135 -136 137 -138 -139 140 -141 142
3.26/3.38	v 143 144 145 146 147 148 -149 -150 151 -152 -153 154 -155 -156 157 158 -159
3.26/3.38	v 160 161 162 163 164 -165 -166 -167 168 169 -170 -171 172 -173 -174 -175 176
3.26/3.38	v 177 -178 179 -180 181 -182 183 -184 -185 186 187 -188 -189 190 -191 192 -193
3.26/3.38	v -194 -195 196 197 198 -199 -200 -201 -202 203 -204 205 206 207 208 209 210
3.26/3.38	v 211 212 213 -214 -215 -216 217 218 219 220 -221 -222 -223 224 -225 -226 -227
3.26/3.38	v 228 229 230 -231 -232 233 234 -235 236 -237 238 -239 -240 241 -242 243 244
3.26/3.38	v -245 246 247 -248 -249 -250 251 -252 -253 254 -255 256 257 258 259 -260 -261
3.26/3.38	v 262 263 -264 265 -266 267 -268 -269 -270 271 -272 -273 -274 275 276 -277 278
3.26/3.38	v -279 -280 281 -282 283 -284 -285 -286 287 -288 289 -290 -291 -292 293 -294
3.26/3.38	v -295 296 -297 298 -299 -300 -301 -302 -303 304 305 -306 -307 -308 309 -310
3.26/3.38	v 311 312 313 314 315 -316 -317 -318 319 320 321 -322 323 -324 325 326 327 328
3.26/3.38	v 329 -330 331 332 -333 334 335 -336 -337 -338 -339 340 -341 -342 -343 -344 345
3.26/3.38	v -346 347 -348 -349 350 -351 352 353 -354 355 356 357 -358 -359 -360 361 -362
3.26/3.38	v -363 -364 365 -366 -367 368 -369 370 -371 372 -373 374 375 -376 377 378 -379
3.26/3.38	v -380 -381 -382 383 384 -385 -386 -387 388 -389 390 -391 -392 -393 394 395 396
3.26/3.38	v 397 -398 399 400 401 402 403 -404 -405 406 -407 -408 -409 -410 -411 412 -413
3.26/3.38	v -414 -415 416 -417 -418 -419 420 421 422 423 -424 425 426 427 -428 429 -430
3.26/3.38	v 431 432 -433 434 -435 436 -437 -438 -439 -440 441 -442 443 444 445 -446 -447
3.26/3.38	v -448 -449 -450 -451 -452 453 454 -455 -456 -457 -458 -459 -460 461 462 463
3.26/3.38	v -464 465 -466 -467 468 -469 470 471 472 473 -474 -475 476 -477 478 -479 480
3.26/3.38	v -481 482 483 -484 -485 486 -487 -488 -489 490 491 492 -493 494 -495 -496 -497
3.26/3.38	v -498 499 500 -501 502 503 504 -505 -506 507 -508 509 -510 511 512 513 514
3.26/3.38	v -515 516 -517 -518 519 -520 521 522 523 524 -525 526 -527 528 529 530 -531
3.26/3.38	v 532 533 534 535 536 -537 538 539 540 541 -542 -543 544 -545 546 -547 -548
3.26/3.38	v -549 -550 551 -552 -553 -554 -555 -556 557 558 559 -560 -561 562 -563 564
3.26/3.38	v -565 -566 -567 -568 -569 570 -571 572 573 -574 575 -576 577 -578 -579 -580
3.26/3.38	v 581 582 583 -584 585 -586 -587 -588 589 -590 -591 592 593 -594 595 596 597
3.26/3.38	v -598 -599 600 -601 -602 -603 604 -605 -606 607 608 -609 -610 -611 -612 613
3.26/3.38	v -614 615 -616 617 618 -619 620 -621 -622 623 624 -625 -626 627 -628 -629 630
3.26/3.38	v 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/node41/watcher-310535-1172560228 -o ROOT/results/node41/solver-310535-1172560228 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310535-1172560228/picosat /tmp/evaluation/310535-1172560228/instance-310535-1172560228.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: 0.85 0.97 0.99 3/64 16900
/proc/meminfo: memFree=1830256/2055920 swapFree=4172320/4192956
[pid=16900] ppid=16898 vsize=568 CPUtime=0
/proc/16900/stat : 16900 (picosat) R 16898 16900 16394 0 -1 4194304 80 0 0 0 0 0 0 0 18 0 1 0 275978781 581632 65 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/16900/statm: 142 66 40 102 0 37 0

[startup+0.107075 s]
/proc/loadavg: 0.85 0.97 0.99 3/64 16900
/proc/meminfo: memFree=1830256/2055920 swapFree=4172320/4192956
[pid=16900] ppid=16898 vsize=840 CPUtime=0.09
/proc/16900/stat : 16900 (picosat) R 16898 16900 16394 0 -1 4194304 143 0 0 0 9 0 0 0 18 0 1 0 275978781 860160 126 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/16900/statm: 210 126 48 102 0 105 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 840

[startup+0.515109 s]
/proc/loadavg: 0.85 0.97 0.99 3/64 16900
/proc/meminfo: memFree=1830256/2055920 swapFree=4172320/4192956
[pid=16900] ppid=16898 vsize=840 CPUtime=0.5
/proc/16900/stat : 16900 (picosat) R 16898 16900 16394 0 -1 4194304 151 0 0 0 50 0 0 0 21 0 1 0 275978781 860160 134 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525807 0 0 4096 0 0 0 0 17 1 0 0
/proc/16900/statm: 210 134 48 102 0 105 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 840

[startup+1.33518 s]
/proc/loadavg: 0.85 0.97 0.99 2/65 16901
/proc/meminfo: memFree=1829800/2055920 swapFree=4172320/4192956
[pid=16900] ppid=16898 vsize=840 CPUtime=1.32
/proc/16900/stat : 16900 (picosat) R 16898 16900 16394 0 -1 4194304 167 0 0 0 132 0 0 0 25 0 1 0 275978781 860160 150 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525828 0 0 4096 0 0 0 0 17 1 0 0
/proc/16900/statm: 210 150 48 102 0 105 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 840

[startup+2.97132 s]
/proc/loadavg: 0.85 0.97 0.99 2/65 16901
/proc/meminfo: memFree=1829608/2055920 swapFree=4172320/4192956
[pid=16900] ppid=16898 vsize=984 CPUtime=2.96
/proc/16900/stat : 16900 (picosat) R 16898 16900 16394 0 -1 4194304 183 0 0 0 296 0 0 0 25 0 1 0 275978781 1007616 166 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134525760 0 0 4096 0 0 0 0 17 1 0 0
/proc/16900/statm: 246 166 48 102 0 141 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 984

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

[startup+3.27735 s]
/proc/loadavg: 0.85 0.97 0.99 2/65 16901
/proc/meminfo: memFree=1829608/2055920 swapFree=4172320/4192956
[pid=16900] ppid=16898 vsize=984 CPUtime=3.26
/proc/16900/stat : 16900 (picosat) R 16898 16900 16394 0 -1 4194304 187 0 0 0 326 0 0 0 25 0 1 0 275978781 1007616 170 18446744073709551615 134512640 134931368 4294956704 18446744073709551615 134549528 0 0 4096 0 0 0 0 17 1 0 0
/proc/16900/statm: 246 170 48 102 0 141 0
Current children cumulated CPU time (s) 3.26
Current children cumulated vsize (KiB) 984

[startup+3.37936 s]
/proc/loadavg: 0.85 0.97 0.99 2/65 16901
/proc/meminfo: memFree=1829544/2055920 swapFree=4172320/4192956
[pid=16900] ppid=-1 vsize=0 CPUtime=0
/proc/16900/stat : ÿÿÿÿÿÿÿÿ/proc/16900/statm: 4 548682069088 18446744073709551615 238390141764 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0

Child status: 10
Real time (s): 3.38169
CPU time (s): 3.37949
CPU user time (s): 3.37149
CPU system time (s): 0.007998
CPU usage (%): 99.9348
Max. virtual memory (cumulated for all children) (KiB): 984

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.37149
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 196
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= 1

runsolver used 0.006998 second user time and 0.012998 second system time

The end

Launcher Data (download as text)

Begin job on node41 on Tue Feb 27 07:10:28 UTC 2007

IDJOB= 310535
IDBENCH= 20290
IDSOLVER= 106
FILE ID= node41/310535-1172560228

PBS_JOBID= 3971884

Free space on /tmp= 66560 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S1244126495-18-SAT.cnf
COMMAND LINE= /tmp/evaluation/310535-1172560228/picosat /tmp/evaluation/310535-1172560228/instance-310535-1172560228.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-310535-1172560228 -o ROOT/results/node41/solver-310535-1172560228 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310535-1172560228/picosat /tmp/evaluation/310535-1172560228/instance-310535-1172560228.cnf            

META MD5SUM SOLVER= 1cb12d44dc66ecc4d20a168f5cfd1323
MD5SUM BENCH=  7170ef62ab1f0b3de97654e24bebe902

RANDOM SEED= 448812071

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node41.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		: 3000.231
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		: 3000.231
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:       1830728 kB
Buffers:         31136 kB
Cached:         133424 kB
SwapCached:      14892 kB
Active:          97160 kB
Inactive:        89104 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1830728 kB
SwapTotal:     4192956 kB
SwapFree:      4172320 kB
Dirty:             624 kB
Writeback:           0 kB
Mapped:          15720 kB
Slab:            24976 kB
Committed_AS:   542732 kB
PageTables:       1476 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= 66560 MiB

End job on node41 on Tue Feb 27 07:10:32 UTC 2007