Trace number 309630

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
saps 2007-02-08SAT 0.428934 0.428416

General information on the benchmark

Namerandom/2+p/p0.9/v810/
unif2p-p0.9-v810-c2932-S1678549664-11-SAT.cnf
MD5SUM597b7f6fd53d553e7db789a34606fe09
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.033994
Satisfiable
(Un)Satisfiability was proved
Number of variables810
Number of clauses2931
Sum of the clauses size8500
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2293
Number of clauses of size 32638
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.41/0.42	c 
0.41/0.42	c UBCSAT version 1.1.0rr
0.41/0.42	c 
0.41/0.42	c http://www.satlib.org/ubcsat
0.41/0.42	c 
0.41/0.42	c ubcsat -h for help
0.41/0.42	c 
0.41/0.42	c  -runs 1 
0.41/0.42	c  -cutoff 4294967295 
0.41/0.42	c  -timeout 0.000000 
0.41/0.42	c  -gtimeout 0.000000 
0.41/0.42	c  -noimprove 0 
0.41/0.42	c  -target 0 
0.41/0.42	c  -wtarget 0.000000 
0.41/0.42	c  -seed 673288661 
0.41/0.42	c  -solve 0 
0.41/0.42	c  -find,-numsol 0 
0.41/0.42	c  -findunique 0 
0.41/0.42	c  -srestart 0 
0.41/0.42	c  -prestart 0.000000 
0.41/0.42	c  -drestart 0 
0.41/0.42	c 
0.41/0.42	c  -alpha 1.300000 
0.41/0.42	c  -rho 0.800000 
0.41/0.42	c  -ps 0.050000 
0.41/0.42	c  -wp 0.010000 
0.41/0.42	c  -sapsthresh -0.100000 
0.41/0.42	c 
0.41/0.42	s SATISFIABLE
0.41/0.42	v  -1 -2 3 4 5 -6 7 8 -9 -10
0.41/0.42	v  -11 12 13 14 15 16 17 18 19 -20
0.41/0.42	v  -21 22 23 -24 25 26 -27 -28 29 -30
0.41/0.42	v  -31 32 -33 -34 35 -36 37 -38 -39 40
0.41/0.42	v  -41 42 43 -44 45 46 -47 -48 -49 50
0.41/0.42	v  51 -52 53 -54 -55 56 57 58 -59 60
0.41/0.42	v  61 62 -63 64 -65 -66 -67 -68 -69 70
0.41/0.42	v  -71 -72 73 74 75 -76 -77 78 79 -80
0.41/0.42	v  -81 -82 83 -84 -85 86 -87 -88 -89 90
0.41/0.42	v  91 92 -93 94 -95 96 97 98 -99 -100
0.41/0.42	v  -101 -102 -103 -104 -105 -106 107 -108 -109 110
0.41/0.42	v  111 112 113 114 -115 -116 117 118 -119 -120
0.41/0.42	v  121 -122 123 -124 125 -126 -127 128 -129 130
0.41/0.42	v  -131 132 133 134 135 136 137 -138 -139 -140
0.41/0.42	v  -141 -142 -143 -144 145 146 147 148 -149 150
0.41/0.42	v  151 -152 -153 -154 -155 156 -157 -158 159 160
0.41/0.42	v  161 162 -163 164 165 -166 167 -168 -169 170
0.41/0.42	v  -171 172 173 -174 175 176 -177 -178 179 180
0.41/0.42	v  -181 182 -183 -184 185 -186 187 188 -189 190
0.41/0.42	v  191 -192 -193 -194 195 196 197 -198 -199 200
0.41/0.42	v  201 -202 -203 -204 205 -206 -207 -208 209 -210
0.41/0.42	v  -211 -212 213 -214 215 -216 217 218 -219 220
0.41/0.42	v  -221 222 223 -224 225 226 -227 -228 -229 230
0.41/0.42	v  -231 -232 -233 -234 235 236 -237 -238 239 240
0.41/0.42	v  -241 242 243 -244 245 -246 -247 -248 -249 250
0.41/0.42	v  251 252 -253 254 255 -256 257 258 -259 260
0.41/0.42	v  261 262 263 264 -265 266 267 268 269 -270
0.41/0.42	v  -271 272 273 -274 275 276 -277 278 279 -280
0.41/0.42	v  281 282 283 284 -285 -286 287 288 289 290
0.41/0.42	v  291 292 293 -294 -295 -296 -297 298 -299 -300
0.41/0.42	v  -301 302 -303 -304 -305 306 -307 308 309 310
0.41/0.42	v  311 -312 -313 314 -315 -316 317 -318 -319 320
0.41/0.42	v  -321 322 -323 324 -325 326 327 -328 329 -330
0.41/0.42	v  331 332 333 334 335 -336 -337 338 339 340
0.41/0.42	v  341 -342 -343 -344 -345 -346 -347 348 -349 -350
0.41/0.42	v  -351 352 -353 354 355 -356 357 -358 359 360
0.41/0.42	v  361 362 363 364 -365 -366 367 368 -369 370
0.41/0.42	v  -371 -372 373 374 -375 376 -377 378 -379 380
0.41/0.42	v  381 382 -383 384 385 386 387 388 -389 -390
0.41/0.42	v  -391 392 393 394 395 396 -397 -398 -399 -400
0.41/0.42	v  401 402 403 -404 405 -406 -407 -408 409 -410
0.41/0.42	v  -411 -412 -413 -414 415 -416 417 -418 -419 -420
0.41/0.42	v  -421 -422 423 424 -425 -426 -427 -428 429 -430
0.41/0.42	v  -431 432 433 -434 435 436 -437 -438 -439 -440
0.41/0.42	v  441 -442 443 -444 -445 -446 447 448 -449 -450
0.41/0.42	v  451 -452 453 454 -455 456 457 -458 459 -460
0.41/0.42	v  461 462 463 464 -465 466 -467 -468 469 470
0.41/0.42	v  -471 472 473 -474 475 -476 -477 478 -479 -480
0.41/0.42	v  -481 -482 -483 484 485 486 487 488 -489 -490
0.41/0.42	v  -491 492 493 494 -495 -496 497 -498 -499 500
0.41/0.42	v  -501 502 503 -504 505 -506 507 508 -509 510
0.41/0.42	v  -511 512 513 -514 -515 -516 -517 518 -519 -520
0.41/0.42	v  521 522 523 524 525 -526 -527 528 529 -530
0.41/0.42	v  -531 532 533 534 535 -536 537 -538 539 -540
0.41/0.42	v  541 542 -543 544 545 -546 547 -548 -549 -550
0.41/0.42	v  551 552 553 554 -555 556 557 558 -559 -560
0.41/0.42	v  -561 -562 -563 -564 565 566 -567 568 569 -570
0.41/0.42	v  -571 572 -573 -574 575 576 577 578 579 -580
0.41/0.42	v  -581 -582 583 584 585 -586 587 -588 -589 -590
0.41/0.42	v  591 592 593 -594 -595 -596 -597 598 599 600
0.41/0.42	v  -601 602 603 -604 -605 -606 -607 608 609 -610
0.41/0.42	v  -611 -612 613 614 615 616 617 618 619 620
0.41/0.42	v  621 -622 -623 624 625 626 -627 628 629 -630
0.41/0.42	v  631 632 -633 -634 -635 -636 637 638 639 640
0.41/0.42	v  641 642 -643 644 -645 646 -647 648 -649 -650
0.41/0.42	v  -651 -652 653 -654 655 -656 657 658 -659 -660
0.41/0.42	v  -661 662 -663 -664 -665 666 667 668 -669 670
0.41/0.42	v  -671 672 -673 674 675 -676 677 678 679 -680
0.41/0.42	v  681 682 -683 684 -685 -686 -687 688 689 -690
0.41/0.42	v  691 -692 -693 694 -695 696 697 698 -699 700
0.41/0.42	v  701 702 703 -704 705 706 -707 -708 -709 710
0.41/0.42	v  711 -712 713 714 -715 -716 717 718 -719 720
0.41/0.42	v  -721 -722 -723 -724 725 -726 727 728 -729 -730
0.41/0.42	v  731 -732 733 734 735 -736 -737 738 739 -740
0.41/0.42	v  -741 -742 743 -744 745 746 747 -748 749 750
0.41/0.42	v  -751 752 753 754 755 -756 757 -758 759 760
0.41/0.42	v  -761 -762 763 -764 765 -766 -767 -768 769 -770
0.41/0.42	v  -771 -772 773 774 775 -776 777 -778 779 -780
0.41/0.42	v  781 -782 783 784 -785 -786 -787 788 789 790
0.41/0.42	v  -791 -792 -793 794 -795 796 797 -798 799 800
0.41/0.42	v  801 -802 -803 -804 805 806 -807 808 -809 -810
0.41/0.42	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/node2/watcher-309630-1172544852 -o ROOT/results/node2/solver-309630-1172544852 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/309630-1172544852/saps /tmp/evaluation/309630-1172544852/instance-309630-1172544852.cnf 673288661 

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 1.21 3/77 25565
/proc/meminfo: memFree=1724096/2055920 swapFree=4192812/4192956
[pid=25565] ppid=25563 vsize=5156 CPUtime=0
/proc/25565/stat : 25565 (saps) R 25563 25565 25069 0 -1 4194304 153 0 0 0 0 0 0 0 18 0 1 0 274440165 5279744 137 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134792604 0 0 4096 0 0 0 0 17 1 0 0
/proc/25565/statm: 1289 145 73 159 0 1128 0

[startup+0.107304 s]
/proc/loadavg: 1.00 1.00 1.21 3/77 25565
/proc/meminfo: memFree=1724096/2055920 swapFree=4192812/4192956
[pid=25565] ppid=25563 vsize=5156 CPUtime=0.1
/proc/25565/stat : 25565 (saps) R 25563 25565 25069 0 -1 4194304 194 0 0 0 10 0 0 0 18 0 1 0 274440165 5279744 178 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134715151 0 0 4096 0 0 0 0 17 1 0 0
/proc/25565/statm: 1289 178 78 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

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

[startup+0.415344 s]
/proc/loadavg: 1.00 1.00 1.21 3/77 25565
/proc/meminfo: memFree=1724096/2055920 swapFree=4192812/4192956
[pid=25565] ppid=25563 vsize=5156 CPUtime=0.41
/proc/25565/stat : 25565 (saps) R 25563 25565 25069 0 -1 4194304 194 0 0 0 41 0 0 0 21 0 1 0 274440165 5279744 178 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134549537 0 0 4096 0 0 0 0 17 1 0 0
/proc/25565/statm: 1289 178 78 159 0 1128 0
Current children cumulated CPU time (s) 0.41
Current children cumulated vsize (KiB) 5156

Child status: 10
Real time (s): 0.428416
CPU time (s): 0.428934
CPU user time (s): 0.426935
CPU system time (s): 0.001999
CPU usage (%): 100.121
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.426935
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 212
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= 9

runsolver used 0.004999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node2 on Tue Feb 27 02:54:12 UTC 2007

IDJOB= 309630
IDBENCH= 20265
IDSOLVER= 103
FILE ID= node2/309630-1172544852

PBS_JOBID= 3971638

Free space on /tmp= 66556 MiB

SOLVER NAME= saps 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v810/unif2p-p0.9-v810-c2932-S1678549664-11-SAT.cnf
COMMAND LINE= /tmp/evaluation/309630-1172544852/saps /tmp/evaluation/309630-1172544852/instance-309630-1172544852.cnf  673288661   
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-309630-1172544852 -o ROOT/results/node2/solver-309630-1172544852 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/309630-1172544852/saps /tmp/evaluation/309630-1172544852/instance-309630-1172544852.cnf  673288661   

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  597b7f6fd53d553e7db789a34606fe09

RANDOM SEED= 673288661

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node2.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		: 3000.247
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		: 3000.247
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:       1724504 kB
Buffers:         40660 kB
Cached:         176940 kB
SwapCached:          0 kB
Active:         245316 kB
Inactive:        32336 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1724504 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2228 kB
Writeback:           0 kB
Mapped:          78944 kB
Slab:            39268 kB
Committed_AS:  1285956 kB
PageTables:       1812 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= 66556 MiB

End job on node2 on Tue Feb 27 02:54:13 UTC 2007