Trace number 309425

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 0.077987 0.108595

General information on the benchmark

Namerandom/2+p/p0.9/v990/
unif2p-p0.9-v990-c3583-S592344929-16-SAT.cnf
MD5SUM4f1fdd7886037e39bdc6f3becce96722
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.040993
Satisfiable
(Un)Satisfiability was proved
Number of variables990
Number of clauses3582
Sum of the clauses size10388
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2358
Number of clauses of size 33224
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.07	c 
0.00/0.07	c UBCSAT version 1.1.0rr
0.00/0.07	c 
0.00/0.07	c http://www.satlib.org/ubcsat
0.00/0.07	c 
0.00/0.07	c ubcsat -h for help
0.00/0.07	c 
0.00/0.07	c  -runs 1 
0.00/0.07	c  -cutoff 4294967295 
0.00/0.07	c  -timeout 0.000000 
0.00/0.07	c  -gtimeout 0.000000 
0.00/0.07	c  -noimprove 0 
0.00/0.07	c  -target 0 
0.00/0.07	c  -wtarget 0.000000 
0.00/0.07	c  -seed 501297852 
0.00/0.07	c  -solve 0 
0.00/0.07	c  -find,-numsol 0 
0.00/0.07	c  -findunique 0 
0.00/0.07	c  -srestart 0 
0.00/0.07	c  -prestart 0.000000 
0.00/0.07	c  -drestart 0 
0.00/0.07	c 
0.00/0.07	c  -alpha 1.300000 
0.00/0.07	c  -rho 0.800000 
0.00/0.07	c  -ps 0.050000 
0.00/0.07	c  -wp 0.010000 
0.00/0.07	c  -sapsthresh -0.100000 
0.00/0.07	c 
0.00/0.07	s SATISFIABLE
0.00/0.07	v  -1 2 3 4 5 6 -7 8 -9 -10
0.00/0.07	v  -11 12 -13 14 -15 -16 17 18 19 20
0.00/0.07	v  21 -22 23 24 25 -26 27 28 -29 30
0.00/0.07	v  -31 -32 -33 -34 35 36 -37 -38 -39 -40
0.00/0.07	v  41 -42 -43 44 -45 -46 -47 48 49 50
0.00/0.07	v  -51 -52 -53 54 -55 -56 -57 58 -59 60
0.00/0.07	v  -61 62 -63 -64 65 66 -67 68 69 -70
0.00/0.07	v  71 -72 -73 -74 -75 76 -77 -78 79 80
0.00/0.07	v  -81 82 83 -84 -85 -86 -87 88 -89 90
0.00/0.07	v  -91 -92 93 94 95 -96 -97 98 -99 -100
0.00/0.07	v  101 -102 -103 104 105 -106 107 -108 -109 -110
0.00/0.07	v  -111 -112 -113 114 -115 -116 117 -118 -119 120
0.00/0.07	v  -121 -122 -123 124 -125 126 -127 -128 129 130
0.00/0.07	v  131 -132 133 -134 135 -136 -137 138 139 -140
0.00/0.07	v  141 -142 143 144 -145 -146 -147 148 149 -150
0.00/0.07	v  151 152 153 154 155 156 -157 -158 -159 -160
0.00/0.07	v  161 -162 -163 164 -165 166 -167 -168 169 -170
0.00/0.07	v  -171 172 173 -174 -175 -176 -177 178 179 -180
0.00/0.07	v  -181 -182 183 -184 185 186 187 188 -189 190
0.00/0.07	v  191 192 -193 194 195 196 -197 -198 199 -200
0.00/0.07	v  -201 202 -203 204 -205 206 207 208 -209 210
0.00/0.07	v  -211 212 213 -214 215 -216 -217 218 219 220
0.00/0.07	v  -221 -222 -223 224 -225 -226 -227 228 229 230
0.00/0.07	v  231 232 233 -234 235 -236 -237 238 -239 -240
0.00/0.07	v  241 242 243 244 245 246 247 248 -249 250
0.00/0.07	v  -251 252 -253 -254 255 256 257 258 259 -260
0.00/0.07	v  -261 -262 -263 264 265 -266 267 -268 -269 270
0.00/0.07	v  271 272 -273 -274 275 -276 277 -278 279 280
0.00/0.07	v  -281 -282 283 -284 285 -286 287 288 289 -290
0.00/0.07	v  -291 -292 293 -294 295 296 297 -298 299 300
0.00/0.07	v  -301 -302 303 -304 305 306 307 -308 -309 -310
0.00/0.07	v  311 312 -313 314 315 316 -317 -318 -319 -320
0.00/0.07	v  -321 322 323 -324 -325 -326 327 328 329 -330
0.00/0.07	v  -331 -332 -333 -334 335 336 337 -338 -339 -340
0.00/0.07	v  341 -342 -343 -344 -345 346 -347 -348 349 -350
0.00/0.07	v  -351 -352 353 -354 355 -356 -357 -358 -359 360
0.00/0.07	v  361 362 363 -364 365 366 367 -368 -369 370
0.00/0.07	v  -371 -372 373 374 -375 -376 377 378 -379 -380
0.00/0.07	v  -381 -382 -383 -384 -385 -386 387 -388 -389 390
0.00/0.07	v  -391 -392 393 -394 -395 396 -397 -398 -399 400
0.00/0.07	v  401 -402 403 -404 405 -406 -407 -408 409 -410
0.00/0.07	v  411 412 413 414 415 416 -417 418 419 420
0.00/0.07	v  421 422 -423 424 -425 426 -427 428 429 -430
0.00/0.07	v  -431 432 433 -434 435 436 -437 438 439 440
0.00/0.07	v  -441 442 -443 -444 445 -446 447 -448 449 450
0.00/0.07	v  451 452 453 -454 455 456 -457 458 -459 -460
0.00/0.07	v  -461 462 -463 464 465 466 467 468 469 470
0.00/0.07	v  -471 -472 -473 474 475 -476 -477 -478 479 -480
0.00/0.07	v  481 -482 483 -484 -485 -486 -487 488 489 490
0.00/0.07	v  -491 492 493 494 495 496 497 498 499 500
0.00/0.07	v  501 -502 -503 504 -505 -506 -507 -508 509 -510
0.00/0.07	v  -511 512 -513 -514 -515 -516 -517 -518 519 520
0.00/0.07	v  521 -522 523 -524 -525 526 527 528 -529 -530
0.00/0.07	v  -531 -532 533 534 -535 536 -537 -538 539 540
0.00/0.07	v  -541 542 543 -544 -545 -546 -547 -548 549 -550
0.00/0.07	v  551 552 -553 554 -555 556 557 558 559 -560
0.00/0.07	v  561 562 -563 564 565 566 567 -568 569 -570
0.00/0.07	v  -571 572 -573 574 -575 576 -577 -578 -579 580
0.00/0.07	v  581 -582 583 -584 -585 586 -587 588 -589 590
0.00/0.07	v  591 592 -593 594 -595 596 597 598 599 -600
0.00/0.07	v  -601 -602 -603 604 605 -606 607 608 609 610
0.00/0.07	v  -611 612 -613 614 -615 -616 -617 -618 619 -620
0.00/0.07	v  -621 622 623 -624 625 -626 627 628 -629 630
0.00/0.07	v  631 -632 -633 -634 -635 -636 637 -638 639 640
0.00/0.07	v  -641 -642 643 644 -645 -646 647 648 -649 650
0.00/0.07	v  651 -652 653 654 655 656 657 -658 -659 660
0.00/0.07	v  661 662 -663 -664 665 -666 -667 -668 -669 670
0.00/0.07	v  671 -672 -673 -674 -675 676 -677 678 679 -680
0.00/0.07	v  681 -682 -683 684 -685 686 -687 -688 -689 -690
0.00/0.07	v  691 -692 693 694 695 -696 -697 -698 699 700
0.00/0.07	v  701 -702 703 704 -705 -706 -707 -708 -709 -710
0.00/0.07	v  711 -712 713 714 715 -716 -717 -718 719 -720
0.00/0.07	v  -721 -722 -723 724 -725 726 727 -728 -729 -730
0.00/0.07	v  -731 -732 733 734 735 -736 737 -738 739 740
0.00/0.07	v  741 742 743 -744 745 746 -747 -748 -749 -750
0.00/0.07	v  751 752 -753 754 755 756 -757 -758 -759 760
0.00/0.07	v  -761 762 763 -764 -765 -766 767 768 769 770
0.00/0.07	v  -771 772 -773 -774 -775 -776 -777 -778 -779 780
0.00/0.07	v  781 782 783 784 785 786 787 788 789 -790
0.00/0.07	v  791 792 793 794 -795 -796 797 -798 799 800
0.00/0.07	v  -801 -802 -803 804 805 -806 -807 808 -809 -810
0.00/0.07	v  811 812 -813 -814 815 -816 -817 818 -819 820
0.00/0.07	v  821 822 -823 824 825 -826 -827 828 829 830
0.00/0.07	v  831 -832 833 834 835 836 837 -838 -839 -840
0.00/0.07	v  841 -842 843 844 -845 -846 -847 848 849 850
0.00/0.07	v  851 852 853 -854 855 856 857 -858 859 -860
0.00/0.07	v  -861 -862 -863 -864 -865 866 867 868 -869 -870
0.00/0.07	v  -871 -872 -873 -874 875 876 -877 -878 879 880
0.00/0.07	v  881 882 -883 884 885 -886 -887 -888 889 890
0.00/0.07	v  -891 892 -893 -894 895 -896 -897 898 -899 -900
0.00/0.07	v  901 902 -903 904 905 -906 907 -908 -909 -910
0.00/0.07	v  -911 -912 -913 -914 -915 -916 -917 918 919 920
0.00/0.07	v  -921 922 -923 -924 925 926 -927 928 929 -930
0.00/0.07	v  -931 -932 -933 -934 -935 -936 -937 938 939 940
0.00/0.07	v  941 942 -943 944 -945 946 947 -948 949 950
0.00/0.07	v  -951 952 -953 954 955 -956 -957 -958 -959 -960
0.00/0.07	v  961 -962 963 -964 -965 966 967 -968 -969 -970
0.00/0.07	v  971 -972 973 -974 -975 -976 977 978 979 980
0.00/0.07	v  981 -982 983 -984 985 986 987 988 989 990
0.00/0.07	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/node66/watcher-309425-1172541216 -o ROOT/results/node66/solver-309425-1172541216 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/309425-1172541216/saps /tmp/evaluation/309425-1172541216/instance-309425-1172541216.cnf 501297852 

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: 0.86 0.97 0.99 3/64 13631
/proc/meminfo: memFree=1872904/2055920 swapFree=4179812/4192956
[pid=13631] ppid=13629 vsize=5160 CPUtime=0
/proc/13631/stat : 13631 (saps) R 13629 13631 12385 0 -1 4194304 151 0 0 0 0 0 0 0 18 0 1 0 274079179 5283840 136 18446744073709551615 134512640 135167564 4294956704 18446744073709551615 134799213 0 0 4096 0 0 0 0 17 1 0 0
/proc/13631/statm: 1290 136 72 159 0 1129 0

[startup+0.107188 s]
/proc/loadavg: 0.86 0.97 0.99 3/64 13631
/proc/meminfo: memFree=1872904/2055920 swapFree=4179812/4192956
[pid=13631] ppid=13629 vsize=0 CPUtime=0.07
/proc/13631/stat : 13631 (saps) D 13629 13631 12385 0 -1 4194308 222 0 0 0 7 0 0 0 15 0 1 0 274079179 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 18446744072100051646 0 0 17 1 0 0
/proc/13631/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 0

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

[startup+0.107188 s]
/proc/loadavg: 0.86 0.97 0.99 3/64 13631
/proc/meminfo: memFree=1872904/2055920 swapFree=4179812/4192956
[pid=13631] ppid=13629 vsize=0 CPUtime=0.07
/proc/13631/stat : 13631 (saps) D 13629 13631 12385 0 -1 4194308 222 0 0 0 7 0 0 0 15 0 1 0 274079179 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 18446744072100051646 0 0 17 1 0 0
/proc/13631/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 0

Child status: 10
Real time (s): 0.108595
CPU time (s): 0.077987
CPU user time (s): 0.076988
CPU system time (s): 0.000999
CPU usage (%): 71.8146
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.076988
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 222
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= 0

runsolver used 0.003999 second user time and 0.003999 second system time

The end

Launcher Data (download as text)

Begin job on node66 on Tue Feb 27 01:53:36 UTC 2007

IDJOB= 309425
IDBENCH= 20259
IDSOLVER= 103
FILE ID= node66/309425-1172541216

PBS_JOBID= 3971807

Free space on /tmp= 66560 MiB

SOLVER NAME= saps 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v990/unif2p-p0.9-v990-c3583-S592344929-16-SAT.cnf
COMMAND LINE= /tmp/evaluation/309425-1172541216/saps /tmp/evaluation/309425-1172541216/instance-309425-1172541216.cnf  501297852   
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node66/watcher-309425-1172541216 -o ROOT/results/node66/solver-309425-1172541216 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/309425-1172541216/saps /tmp/evaluation/309425-1172541216/instance-309425-1172541216.cnf  501297852   

META MD5SUM SOLVER= a43f4f4c91c277b32a975fd145ded8eb
MD5SUM BENCH=  4f1fdd7886037e39bdc6f3becce96722

RANDOM SEED= 501297852

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node66.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		: 3000.259
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	: 5931.00
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		: 3000.259
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:       1873384 kB
Buffers:         25508 kB
Cached:         115360 kB
SwapCached:       7236 kB
Active:          64644 kB
Inactive:        89420 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1873384 kB
SwapTotal:     4192956 kB
SwapFree:      4179812 kB
Dirty:            2296 kB
Writeback:           0 kB
Mapped:          15312 kB
Slab:            14576 kB
Committed_AS:   665260 kB
PageTables:       1376 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 node66 on Tue Feb 27 01:53:37 UTC 2007