Trace number 309753

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 0.904861 0.906732

General information on the benchmark

Namerandom/2+p/p0.9/v810/
unif2p-p0.9-v810-c2932-S1014417748-14-SAT.cnf
MD5SUM12c6ae21cea692230c5e45227dcf3ab1
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.050991
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)

0.81/0.90	c 
0.81/0.90	c UBCSAT version 1.1.0rr
0.81/0.90	c 
0.81/0.90	c http://www.satlib.org/ubcsat
0.81/0.90	c 
0.81/0.90	c ubcsat -h for help
0.81/0.90	c 
0.81/0.90	c  -runs 1 
0.81/0.90	c  -cutoff 4294967295 
0.81/0.90	c  -timeout 0.000000 
0.81/0.90	c  -gtimeout 0.000000 
0.81/0.90	c  -noimprove 0 
0.81/0.90	c  -target 0 
0.81/0.90	c  -wtarget 0.000000 
0.81/0.90	c  -seed 702405108 
0.81/0.90	c  -solve 0 
0.81/0.90	c  -find,-numsol 0 
0.81/0.90	c  -findunique 0 
0.81/0.90	c  -srestart 0 
0.81/0.90	c  -prestart 0.000000 
0.81/0.90	c  -drestart 0 
0.81/0.90	c 
0.81/0.90	c  -alpha 1.300000 
0.81/0.90	c  -rho 0.800000 
0.81/0.90	c  -ps 0.050000 
0.81/0.90	c  -wp 0.010000 
0.81/0.90	c  -sapsthresh -0.100000 
0.81/0.90	c 
0.81/0.90	s SATISFIABLE
0.81/0.90	v  -1 2 3 4 5 -6 -7 -8 9 10
0.81/0.90	v  -11 12 -13 -14 15 16 17 18 19 20
0.81/0.90	v  -21 22 23 24 -25 26 -27 28 -29 -30
0.81/0.90	v  -31 32 33 -34 -35 -36 -37 38 39 -40
0.81/0.90	v  41 42 -43 -44 45 -46 -47 -48 -49 -50
0.81/0.90	v  51 -52 -53 54 55 56 57 -58 59 -60
0.81/0.90	v  -61 62 63 64 -65 66 -67 68 -69 70
0.81/0.90	v  -71 72 -73 -74 -75 -76 -77 78 -79 -80
0.81/0.90	v  -81 82 -83 -84 85 86 87 88 -89 -90
0.81/0.90	v  91 -92 -93 94 -95 96 97 -98 99 100
0.81/0.90	v  -101 102 103 104 -105 106 -107 108 109 110
0.81/0.90	v  -111 112 -113 114 -115 -116 117 118 119 -120
0.81/0.90	v  -121 -122 123 124 -125 126 -127 -128 -129 -130
0.81/0.90	v  -131 132 133 -134 -135 -136 -137 138 -139 -140
0.81/0.90	v  -141 -142 -143 -144 -145 -146 -147 -148 -149 150
0.81/0.90	v  151 152 -153 154 155 156 -157 158 159 160
0.81/0.90	v  161 162 -163 -164 165 166 167 168 -169 170
0.81/0.90	v  -171 172 173 -174 -175 -176 177 178 -179 180
0.81/0.90	v  -181 182 183 184 -185 -186 187 188 189 190
0.81/0.90	v  -191 192 -193 194 -195 -196 197 198 -199 200
0.81/0.90	v  201 -202 -203 -204 205 206 207 208 -209 -210
0.81/0.90	v  -211 212 213 -214 215 -216 217 -218 -219 -220
0.81/0.90	v  -221 222 -223 -224 -225 -226 227 -228 -229 -230
0.81/0.90	v  -231 232 233 234 235 236 -237 -238 239 -240
0.81/0.90	v  -241 -242 -243 244 -245 246 247 248 -249 250
0.81/0.90	v  -251 -252 253 -254 255 -256 -257 258 -259 260
0.81/0.90	v  -261 262 263 264 -265 -266 267 -268 -269 270
0.81/0.90	v  -271 272 273 -274 275 276 -277 278 -279 280
0.81/0.90	v  -281 -282 -283 284 285 286 287 -288 289 290
0.81/0.90	v  -291 292 -293 294 -295 -296 297 298 -299 -300
0.81/0.90	v  301 302 -303 -304 -305 306 -307 308 -309 -310
0.81/0.90	v  -311 -312 -313 314 315 -316 -317 -318 -319 320
0.81/0.90	v  -321 322 -323 324 -325 -326 -327 -328 -329 -330
0.81/0.90	v  331 -332 -333 334 -335 336 -337 -338 -339 340
0.81/0.90	v  -341 -342 -343 -344 -345 346 347 348 349 -350
0.81/0.90	v  351 -352 -353 354 -355 -356 357 -358 -359 360
0.81/0.90	v  361 362 -363 -364 -365 -366 -367 -368 -369 370
0.81/0.90	v  -371 372 -373 374 375 -376 377 -378 -379 -380
0.81/0.90	v  -381 -382 383 384 385 386 387 388 -389 -390
0.81/0.90	v  -391 -392 393 -394 395 -396 397 398 -399 -400
0.81/0.90	v  -401 402 -403 404 -405 -406 -407 -408 409 410
0.81/0.90	v  411 412 413 414 415 416 -417 -418 -419 -420
0.81/0.90	v  -421 -422 423 -424 -425 426 427 -428 -429 430
0.81/0.90	v  -431 432 433 434 -435 -436 -437 438 -439 -440
0.81/0.90	v  441 442 443 -444 -445 446 447 448 449 -450
0.81/0.90	v  -451 -452 -453 454 -455 -456 -457 458 -459 460
0.81/0.90	v  461 462 463 -464 -465 -466 -467 -468 -469 470
0.81/0.90	v  -471 472 -473 -474 -475 -476 -477 -478 -479 -480
0.81/0.90	v  -481 482 -483 484 -485 -486 -487 488 -489 490
0.81/0.90	v  491 492 -493 494 -495 496 497 -498 499 -500
0.81/0.90	v  501 -502 503 -504 -505 -506 507 -508 -509 510
0.81/0.90	v  -511 -512 513 -514 515 516 517 518 519 -520
0.81/0.90	v  521 -522 523 524 525 526 527 528 529 -530
0.81/0.90	v  531 -532 533 -534 535 -536 537 -538 539 540
0.81/0.90	v  -541 542 543 544 -545 -546 -547 548 549 550
0.81/0.90	v  551 -552 553 -554 -555 -556 557 558 -559 -560
0.81/0.90	v  561 562 -563 -564 565 566 567 568 569 570
0.81/0.90	v  571 -572 573 -574 575 -576 577 -578 -579 580
0.81/0.90	v  581 -582 583 -584 585 -586 -587 588 -589 -590
0.81/0.90	v  -591 592 -593 594 -595 -596 -597 598 -599 -600
0.81/0.90	v  -601 602 603 -604 605 606 607 -608 -609 610
0.81/0.90	v  -611 612 613 -614 -615 -616 617 618 -619 -620
0.81/0.90	v  621 -622 -623 -624 625 626 -627 -628 -629 630
0.81/0.90	v  631 -632 -633 -634 635 636 -637 -638 -639 640
0.81/0.90	v  641 -642 643 644 645 -646 647 648 649 -650
0.81/0.90	v  -651 -652 653 654 655 656 657 658 -659 -660
0.81/0.90	v  661 -662 663 -664 -665 -666 667 -668 669 670
0.81/0.90	v  671 672 673 -674 675 676 677 678 679 -680
0.81/0.90	v  681 -682 683 684 685 686 -687 -688 -689 -690
0.81/0.90	v  691 -692 -693 -694 695 -696 697 698 699 700
0.81/0.90	v  -701 702 703 -704 -705 -706 707 708 709 -710
0.81/0.90	v  -711 -712 713 714 715 716 -717 -718 -719 720
0.81/0.90	v  721 722 -723 724 -725 -726 727 -728 729 730
0.81/0.90	v  731 732 733 734 -735 -736 737 -738 -739 740
0.81/0.90	v  741 -742 -743 -744 -745 -746 -747 748 749 750
0.81/0.90	v  751 752 -753 754 -755 -756 757 -758 759 -760
0.81/0.90	v  -761 -762 763 764 -765 766 -767 -768 769 770
0.81/0.90	v  -771 772 -773 774 -775 -776 -777 778 -779 -780
0.81/0.90	v  -781 782 783 -784 -785 -786 -787 788 -789 -790
0.81/0.90	v  791 792 793 794 -795 796 797 -798 799 800
0.81/0.90	v  -801 802 -803 -804 -805 806 -807 -808 809 -810
0.81/0.90	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/node16/watcher-309753-1172546507 -o ROOT/results/node16/solver-309753-1172546507 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/309753-1172546507/saps /tmp/evaluation/309753-1172546507/instance-309753-1172546507.cnf 702405108 

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 20232
/proc/meminfo: memFree=1406224/2055920 swapFree=4192812/4192956
[pid=20232] ppid=20230 vsize=5156 CPUtime=0
/proc/20232/stat : 20232 (saps) R 20230 20232 19164 0 -1 4194304 156 0 0 0 0 0 0 0 18 0 1 0 274605011 5279744 141 18446744073709551615 134512640 135167564 4294956688 18446744073709551615 134694565 0 0 4096 0 0 0 0 17 1 0 0
/proc/20232/statm: 1289 146 72 159 0 1128 0

[startup+0.106839 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 20232
/proc/meminfo: memFree=1406224/2055920 swapFree=4192812/4192956
[pid=20232] ppid=20230 vsize=5156 CPUtime=0.1
/proc/20232/stat : 20232 (saps) R 20230 20232 19164 0 -1 4194304 193 0 0 0 10 0 0 0 18 0 1 0 274605011 5279744 177 18446744073709551615 134512640 135167564 4294956688 18446744073709551615 134714804 0 0 4096 0 0 0 0 17 1 0 0
/proc/20232/statm: 1289 177 77 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

[startup+0.51479 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 20232
/proc/meminfo: memFree=1406224/2055920 swapFree=4192812/4192956
[pid=20232] ppid=20230 vsize=5156 CPUtime=0.51
/proc/20232/stat : 20232 (saps) R 20230 20232 19164 0 -1 4194304 193 0 0 0 51 0 0 0 22 0 1 0 274605011 5279744 177 18446744073709551615 134512640 135167564 4294956688 18446744073709551615 134715032 0 0 4096 0 0 0 0 17 1 0 0
/proc/20232/statm: 1289 177 77 159 0 1128 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 5156

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

[startup+0.820755 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 20232
/proc/meminfo: memFree=1406224/2055920 swapFree=4192812/4192956
[pid=20232] ppid=20230 vsize=5156 CPUtime=0.81
/proc/20232/stat : 20232 (saps) R 20230 20232 19164 0 -1 4194304 193 0 0 0 81 0 0 0 25 0 1 0 274605011 5279744 177 18446744073709551615 134512640 135167564 4294956688 18446744073709551615 134714998 0 0 4096 0 0 0 0 17 1 0 0
/proc/20232/statm: 1289 177 77 159 0 1128 0
Current children cumulated CPU time (s) 0.81
Current children cumulated vsize (KiB) 5156

Child status: 10
Real time (s): 0.906732
CPU time (s): 0.904861
CPU user time (s): 0.902862
CPU system time (s): 0.001999
CPU usage (%): 99.7936
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.902862
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= 211
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= 23

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node16 on Tue Feb 27 03:21:47 UTC 2007

IDJOB= 309753
IDBENCH= 20269
IDSOLVER= 103
FILE ID= node16/309753-1172546507

PBS_JOBID= 3971645

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-S1014417748-14-SAT.cnf
COMMAND LINE= /tmp/evaluation/309753-1172546507/saps /tmp/evaluation/309753-1172546507/instance-309753-1172546507.cnf  702405108   
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node16/watcher-309753-1172546507 -o ROOT/results/node16/solver-309753-1172546507 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/309753-1172546507/saps /tmp/evaluation/309753-1172546507/instance-309753-1172546507.cnf  702405108   

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  12c6ae21cea692230c5e45227dcf3ab1

RANDOM SEED= 702405108

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:       1406632 kB
Buffers:         62884 kB
Cached:         451468 kB
SwapCached:          0 kB
Active:         272684 kB
Inactive:       295260 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1406632 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2220 kB
Writeback:           0 kB
Mapped:          72440 kB
Slab:            66964 kB
Committed_AS:  1079884 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= 66556 MiB

End job on node16 on Tue Feb 27 03:21:48 UTC 2007