Trace number 309670

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
sapsrt 2007-02-08SAT 0.405937 0.406061

General information on the benchmark

Namerandom/2+p/p0.9/v810/
unif2p-p0.9-v810-c2932-S1870497322-13-SAT.cnf
MD5SUMb21a160fd72c696cb1c462ee57a56514
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.302953
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)

0.31/0.40	c 
0.31/0.40	c UBCSAT version 1.1.0rr
0.31/0.40	c 
0.31/0.40	c http://www.satlib.org/ubcsat
0.31/0.40	c 
0.31/0.40	c ubcsat -h for help
0.31/0.40	c 
0.31/0.40	c  -runs 1 
0.31/0.40	c  -cutoff 4294967295 
0.31/0.40	c  -timeout 0.000000 
0.31/0.40	c  -gtimeout 0.000000 
0.31/0.40	c  -noimprove 0 
0.31/0.40	c  -target 0 
0.31/0.40	c  -wtarget 0.000000 
0.31/0.40	c  -seed 534045958 
0.31/0.40	c  -solve 0 
0.31/0.40	c  -find,-numsol 0 
0.31/0.40	c  -findunique 0 
0.31/0.40	c  -srestart 0 
0.31/0.40	c  -prestart 0.000000 
0.31/0.40	c  -drestart 0 
0.31/0.40	c 
0.31/0.40	c  -alpha 1.126000 
0.31/0.40	c  -rho 0.666000 
0.31/0.40	c  -ps 0.033000 
0.31/0.40	c  -wp 0.060000 
0.31/0.40	c  -sapsthresh -0.100000 
0.31/0.40	c 
0.31/0.40	s SATISFIABLE
0.31/0.40	v  -1 2 -3 -4 -5 6 -7 8 9 10
0.31/0.40	v  11 12 -13 -14 -15 -16 -17 -18 -19 20
0.31/0.40	v  -21 -22 -23 24 25 -26 27 -28 -29 -30
0.31/0.40	v  -31 -32 33 34 35 36 -37 -38 39 40
0.31/0.40	v  -41 -42 43 -44 -45 -46 47 -48 49 50
0.31/0.40	v  -51 52 53 -54 55 -56 -57 -58 59 -60
0.31/0.40	v  -61 62 -63 -64 65 66 -67 -68 69 70
0.31/0.40	v  71 -72 -73 -74 -75 -76 77 -78 79 -80
0.31/0.40	v  -81 82 -83 84 -85 86 87 88 89 90
0.31/0.40	v  -91 -92 -93 -94 95 96 97 -98 99 100
0.31/0.40	v  101 102 103 -104 105 106 107 -108 109 110
0.31/0.40	v  -111 112 113 114 115 116 -117 118 -119 -120
0.31/0.40	v  -121 -122 123 -124 125 126 127 -128 -129 130
0.31/0.40	v  131 -132 -133 -134 -135 136 137 -138 -139 -140
0.31/0.40	v  -141 -142 143 -144 145 146 147 -148 -149 -150
0.31/0.40	v  -151 152 -153 -154 -155 -156 -157 -158 -159 -160
0.31/0.40	v  -161 162 163 -164 -165 -166 167 168 -169 -170
0.31/0.40	v  -171 -172 -173 -174 175 -176 -177 178 179 -180
0.31/0.40	v  181 182 -183 184 185 -186 187 188 189 190
0.31/0.40	v  -191 192 -193 -194 195 196 197 198 199 -200
0.31/0.40	v  -201 202 -203 204 205 206 -207 208 -209 -210
0.31/0.40	v  211 212 213 -214 215 216 217 218 219 220
0.31/0.40	v  -221 222 -223 -224 225 226 227 -228 229 230
0.31/0.40	v  -231 232 -233 -234 -235 236 237 -238 239 -240
0.31/0.40	v  -241 -242 -243 -244 245 246 -247 248 249 250
0.31/0.40	v  251 -252 -253 -254 -255 -256 -257 -258 259 -260
0.31/0.40	v  261 262 263 -264 265 266 267 268 269 270
0.31/0.40	v  271 -272 -273 274 -275 276 -277 -278 -279 280
0.31/0.40	v  -281 282 -283 -284 285 286 -287 288 289 290
0.31/0.40	v  291 292 -293 -294 -295 -296 -297 298 299 -300
0.31/0.40	v  301 302 -303 304 305 -306 -307 -308 309 310
0.31/0.40	v  311 312 313 -314 -315 316 -317 318 -319 320
0.31/0.40	v  321 322 -323 324 325 326 327 -328 329 330
0.31/0.40	v  331 332 -333 -334 335 -336 -337 338 339 -340
0.31/0.40	v  -341 342 -343 -344 -345 -346 347 -348 349 350
0.31/0.40	v  -351 352 -353 -354 355 -356 357 358 -359 -360
0.31/0.40	v  -361 -362 363 -364 365 -366 -367 368 -369 370
0.31/0.40	v  -371 372 -373 -374 375 -376 -377 378 379 380
0.31/0.40	v  381 -382 383 -384 -385 386 -387 -388 -389 -390
0.31/0.40	v  391 -392 -393 -394 395 396 397 -398 399 400
0.31/0.40	v  -401 -402 -403 404 -405 406 -407 408 409 410
0.31/0.40	v  411 -412 -413 -414 415 416 417 418 419 420
0.31/0.40	v  -421 -422 423 424 -425 -426 427 428 429 -430
0.31/0.40	v  431 -432 -433 434 435 436 -437 -438 -439 440
0.31/0.40	v  441 -442 -443 444 -445 446 447 -448 449 450
0.31/0.40	v  -451 452 -453 454 455 456 457 458 -459 460
0.31/0.40	v  -461 -462 463 -464 -465 466 467 -468 469 -470
0.31/0.40	v  -471 472 -473 -474 -475 476 477 -478 -479 -480
0.31/0.40	v  -481 482 483 484 -485 -486 -487 488 -489 -490
0.31/0.40	v  -491 492 -493 -494 -495 -496 497 498 -499 -500
0.31/0.40	v  -501 502 -503 -504 -505 506 -507 508 509 510
0.31/0.40	v  511 512 -513 514 -515 516 -517 -518 -519 520
0.31/0.40	v  521 -522 -523 524 525 526 -527 -528 529 530
0.31/0.40	v  531 532 -533 -534 -535 -536 -537 538 -539 -540
0.31/0.40	v  541 -542 543 -544 -545 -546 -547 548 -549 -550
0.31/0.40	v  551 552 -553 -554 -555 -556 557 558 559 560
0.31/0.40	v  -561 -562 -563 564 565 -566 567 568 569 570
0.31/0.40	v  571 -572 573 574 575 576 577 578 -579 -580
0.31/0.40	v  581 -582 583 -584 585 586 -587 588 589 -590
0.31/0.40	v  591 -592 593 594 -595 596 597 598 -599 600
0.31/0.40	v  601 -602 603 -604 -605 606 -607 -608 609 610
0.31/0.40	v  611 -612 -613 614 615 -616 -617 618 -619 620
0.31/0.40	v  -621 622 623 624 -625 626 627 -628 -629 -630
0.31/0.40	v  -631 -632 -633 634 635 636 637 -638 639 640
0.31/0.40	v  641 -642 643 644 -645 -646 -647 648 -649 650
0.31/0.40	v  651 -652 -653 654 655 -656 657 -658 -659 660
0.31/0.40	v  661 662 -663 664 665 666 -667 668 -669 -670
0.31/0.40	v  -671 -672 -673 -674 675 676 677 -678 679 -680
0.31/0.40	v  681 -682 -683 -684 685 -686 -687 -688 -689 -690
0.31/0.40	v  691 692 -693 694 -695 -696 -697 -698 699 700
0.31/0.40	v  701 -702 -703 704 705 -706 707 708 -709 710
0.31/0.40	v  -711 712 713 -714 715 -716 717 718 719 -720
0.31/0.40	v  -721 -722 -723 -724 -725 726 727 728 -729 -730
0.31/0.40	v  -731 -732 -733 -734 735 -736 737 -738 739 740
0.31/0.40	v  -741 742 -743 -744 -745 746 747 748 749 -750
0.31/0.40	v  -751 752 -753 -754 -755 756 -757 758 759 -760
0.31/0.40	v  761 -762 -763 764 765 -766 767 768 769 -770
0.31/0.40	v  771 -772 773 774 -775 -776 -777 -778 -779 780
0.31/0.40	v  781 -782 783 -784 785 -786 -787 -788 -789 790
0.31/0.40	v  791 -792 -793 794 -795 796 -797 798 -799 800
0.31/0.40	v  801 802 -803 -804 805 -806 -807 -808 -809 810
0.31/0.40	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/node68/watcher-309670-1172545342 -o ROOT/results/node68/solver-309670-1172545342 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/309670-1172545342/sapsrt /tmp/evaluation/309670-1172545342/instance-309670-1172545342.cnf 534045958 

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: 1.04 1.01 1.00 3/70 31072
/proc/meminfo: memFree=1817352/2055920 swapFree=4183020/4192956
[pid=31072] ppid=31070 vsize=5156 CPUtime=0
/proc/31072/stat : 31072 (sapsrt) R 31070 31072 29333 0 -1 4194304 172 0 0 0 0 0 0 0 18 0 1 0 274491786 5279744 156 18446744073709551615 134512640 135167692 4294956704 18446744073709551615 134705584 0 0 4096 0 0 0 0 17 1 0 0
/proc/31072/statm: 1289 159 82 159 0 1128 0

[startup+0.107367 s]
/proc/loadavg: 1.04 1.01 1.00 3/70 31072
/proc/meminfo: memFree=1817352/2055920 swapFree=4183020/4192956
[pid=31072] ppid=31070 vsize=5156 CPUtime=0.1
/proc/31072/stat : 31072 (sapsrt) R 31070 31072 29333 0 -1 4194304 199 0 0 0 10 0 0 0 18 0 1 0 274491786 5279744 183 18446744073709551615 134512640 135167692 4294956704 18446744073709551615 134549544 0 0 4096 0 0 0 0 17 1 0 0
/proc/31072/statm: 1289 183 83 159 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+0.209377 s]
/proc/loadavg: 1.04 1.01 1.00 3/70 31072
/proc/meminfo: memFree=1817352/2055920 swapFree=4183020/4192956
[pid=31072] ppid=31070 vsize=5156 CPUtime=0.2
/proc/31072/stat : 31072 (sapsrt) R 31070 31072 29333 0 -1 4194304 199 0 0 0 20 0 0 0 18 0 1 0 274491786 5279744 183 18446744073709551615 134512640 135167692 4294956704 18446744073709551615 134550734 0 0 4096 0 0 0 0 17 1 0 0
/proc/31072/statm: 1289 183 83 159 0 1128 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 5156

[startup+0.311385 s]
/proc/loadavg: 1.04 1.01 1.00 3/70 31072
/proc/meminfo: memFree=1817352/2055920 swapFree=4183020/4192956
[pid=31072] ppid=31070 vsize=5156 CPUtime=0.31
/proc/31072/stat : 31072 (sapsrt) R 31070 31072 29333 0 -1 4194304 199 0 0 0 31 0 0 0 19 0 1 0 274491786 5279744 183 18446744073709551615 134512640 135167692 4294956704 18446744073709551615 134550703 0 0 4096 0 0 0 0 17 1 0 0
/proc/31072/statm: 1289 183 83 159 0 1128 0
Current children cumulated CPU time (s) 0.31
Current children cumulated vsize (KiB) 5156

Child status: 10
Real time (s): 0.406061
CPU time (s): 0.405937
CPU user time (s): 0.403938
CPU system time (s): 0.001999
CPU usage (%): 99.9695
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.403938
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= 214
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 0.003999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node68 on Tue Feb 27 03:02:22 UTC 2007

IDJOB= 309670
IDBENCH= 20267
IDSOLVER= 102
FILE ID= node68/309670-1172545342

PBS_JOBID= 3971828

Free space on /tmp= 66558 MiB

SOLVER NAME= sapsrt 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v810/unif2p-p0.9-v810-c2932-S1870497322-13-SAT.cnf
COMMAND LINE= /tmp/evaluation/309670-1172545342/sapsrt /tmp/evaluation/309670-1172545342/instance-309670-1172545342.cnf  534045958       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node68/watcher-309670-1172545342 -o ROOT/results/node68/solver-309670-1172545342 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/309670-1172545342/sapsrt /tmp/evaluation/309670-1172545342/instance-309670-1172545342.cnf  534045958       

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  b21a160fd72c696cb1c462ee57a56514

RANDOM SEED= 534045958

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node68.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		: 3000.234
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		: 3000.234
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:       1817760 kB
Buffers:         28864 kB
Cached:         159744 kB
SwapCached:       4308 kB
Active:          77936 kB
Inactive:       122148 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1817760 kB
SwapTotal:     4192956 kB
SwapFree:      4183020 kB
Dirty:            4704 kB
Writeback:           0 kB
Mapped:          17292 kB
Slab:            23724 kB
Committed_AS:   720604 kB
PageTables:       1612 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 node68 on Tue Feb 27 03:02:22 UTC 2007