Trace number 309437

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
Hybrid1 2007-02-08SAT 0.05899 0.0604829

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)

0.00/0.05	c try 1 flip j 31547
0.00/0.05	c A solution is found
0.00/0.05	s SATISFIABLE
0.00/0.05	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 25 -26 -27 -28 -29 -30 -31 32 -33 -34 35 36 -37 38 -39 -40 41 42 -43 44 -45 46 -47 -48 49 -50 -51 52 -53 -54 -55 -56 -57 58 -59 60 -61 62 -63 -64 65 66 -67 68 69 -70 71 -72 -73 -74 75 76 -77 -78 79 80 -81 82 83 -84 -85 -86 -87 88 -89 90 -91 -92 93 94 95 96 -97 98 -99 -100 101 -102 -103 -104 105 -106 107 -108 -109 -110 -111 -112 -113 114 -115 -116 117 -118 -119 120 -121 122 123 124 -125 126 -127 -128 129 130 131 -132 133 -134 135 -136 137 -138 139 140 -141 -142 143 -144 -145 -146 -147 148 149 -150 151 152 -153 154 155 156 -157 -158 -159 -160 161 -162 163 164 165 166 -167 -168 169 -170 -171 172 -173 174 -175 -176 -177 178 179 -180 -181 -182 -183 -184 185 -186 187 188 -189 190 191 192 -193 194 195 -196 -197 -198 199 -200 -201 202 -203 204 -205 206 207 208 209 210 -211 212 213 214 215 216 -217 218 219 220 -221 -222 -223 224 225 -226 -227 228 229 230 231 232 233 -234 235 -236 -237 238 -239 240 241 242 -243 244 245 246 247 248 -249 250 251 252 -253 -254 255 -256 257 258 259 -260 -261 -262 -263 -264 -265 -266 267 268 -269 270 -271 272 273 274 275 -276 -277 -278 279 280 -281 -282 283 -284 285 286 287 -288 289 -290 -291 292 -293 -294 295 296 297 -298 299 -300 301 -302 303 -304 305 306 307 -308 -309 -310 311 -312 313 -314 315 316 -317 -318 -319 320 -321 -322 323 -324 -325 -326 -327 328 -329 -330 331 -332 -333 -334 335 336 337 -338 -339 -340 341 -342 -343 -344 -345 346 -347 -348 349 350 -351 -352 353 354 -355 -356 -357 -358 -359 360 361 362 363 -364 -365 -366 367 -368 -369 370 -371 372 -373 -374 -375 376 -377 378 -379 -380 -381 -382 383 -384 -385 -386 -387 -388 389 -390 -391 -392 393 -394 -395 396 -397 -398 399 400 401 -402 -403 -404 405 -406 407 -408 -409 -410 411 412 413 -414 415 416 -417 418 419 -420 421 422 423 424 -425 426 -427 428 429 -430 -431 432 433 -434 435 -436 -437 438 439 440 -441 442 -443 -444 445 -446 447 -448 449 450 451 -452 453 -454 455 456 -457 458 -459 -460 -461 -462 463 464 465 466 467 468 -469 -470 -471 -472 -473 474 475 -476 477 -478 479 -480 481 -482 483 -484 -485 -486 487 488 489 490 -491 492 493 494 -495 -496 497 498 -499 -500 501 -502 -503 504 -505 -506 -507 508 509 510 -511 512 513 -514 -515 516 -517 -518 519 -520 521 522 523 -524 -525 526 527 528 529 -530 -531 -532 533 534 -535 536 -537 -538 539 -540 -541 542 543 -544 -545 -546 -547 -548 549 -550 551 552 553 554 -555 556 557 -558 559 -560 561 562 -563 564 565 566 567 -568 569 570 -571 572 -573 574 575 576 -577 578 -579 580 581 -582 583 -584 -585 586 587 588 -589 590 591 -592 -593 594 -595 -596 -597 598 -599 -600 -601 -602 -603 604 -605 -606 607 608 609 610 -611 612 -613 614 615 -616 -617 -618 -619 -620 -621 622 623 -624 625 -626 627 628 -629 630 -631 -632 633 -634 635 -636 637 -638 639 640 -641 -642 -643 -644 -645 -646 647 -648 -649 650 -651 -652 653 654 -655 656 -657 -658 -659 660 661 662 -663 -664 665 -666 -667 668 -669 670 -671 -672 -673 -674 -675 676 -677 678 679 680 681 -682 -683 -684 -685 -686 -687 -688 -689 690 691 -692 693 694 695 -696 697 -698 699 700 701 -702 703 704 705 -706 -707 -708 709 -710 711 -712 713 714 -715 -716 -717 -718 -719 720 -721 -722 -723 724 -725 -726 727 728 -729 -730 -731 -732 733 734 -735 -736 737 -738 739 740 741 -742 743 -744 745 746 -747 -748 -749 -750 -751 752 -753 -754 755 756 -757 -758 -759 760 -761 762 763 -764 -765 -766 767 768 769 770 -771 772 -773 -774 775 -776 -777 -778 -779 -780 781 782 783 784 -785 786 787 788 789 -790 791 -792 -793 794 -795 -796 797 798 799 800 801 -802 803 804 805 -806 -807 -808 -809 -810 -811 812 -813 -814 815 -816 817 -818 -819 820 821 822 823 -824 825 826 -827 -828 829 830 831 -832 -833 834 835 836 837 -838 -839 -840 -841 -842 843 844 -845 -846 847 848 849 850 851 852 -853 -854 855 856 -857 -858 859 -860 861 -862 -863 -864 865 866 867 868 869 -870 -871 -872 -873 -874 -875 876 -877 -878 879 880 881 882 -883 884 885 -886 -887 -888 889 890 -891 892 893 894 -895 -896 -897 898 -899 -900 901 902 -903 904 905 906 -907 -908 -909 -910 911 -912 -913 -914 915 -916 -917 918 919 -920 -921 922 -923 924 925 926 927 928 -929 930 -931 932 -933 -934 -935 -936 -937 -938 939 940 -941 942 943 -944 -945 946 -947 -948 -949 -950 -951 952 953 -954 955 -956 957 -958 -959 960 -961 -962 963 -964 965 966 -967 -968 -969 -970 971 -972 973 -974 -975 -976 977 -978 979 980 981 -982 983 -984 -985 -986 987 988 -989 990 
0.00/0.05	v 0 
0.00/0.05	c Done (mycputime is 0.000 seconds)

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/node1/watcher-309437-1172541358 -o ROOT/results/node1/solver-309437-1172541358 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/309437-1172541358/Hybrid1 /tmp/evaluation/309437-1172541358/instance-309437-1172541358.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: 1.00 1.00 0.99 3/77 16940
/proc/meminfo: memFree=1765288/2055920 swapFree=4156676/4192956
[pid=16940] ppid=16938 vsize=244720 CPUtime=0
/proc/16940/stat : 16940 (Hybrid1) R 16938 16940 15200 0 -1 4194304 101 0 0 0 0 0 0 0 18 0 1 0 274090880 250593280 85 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134521553 0 0 4096 0 0 0 0 17 1 0 0
/proc/16940/statm: 61180 86 39 103 0 60684 0

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

Child status: 10
Real time (s): 0.0604829
CPU time (s): 0.05899
CPU user time (s): 0.057991
CPU system time (s): 0.000999
CPU usage (%): 97.5317
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.057991
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= 275
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 0.002999 second system time

The end

Launcher Data (download as text)

Begin job on node1 on Tue Feb 27 01:55:58 UTC 2007

IDJOB= 309437
IDBENCH= 20259
IDSOLVER= 115
FILE ID= node1/309437-1172541358

PBS_JOBID= 3971635

Free space on /tmp= 66553 MiB

SOLVER NAME= Hybrid1 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/309437-1172541358/Hybrid1 /tmp/evaluation/309437-1172541358/instance-309437-1172541358.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node1/watcher-309437-1172541358 -o ROOT/results/node1/solver-309437-1172541358 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/309437-1172541358/Hybrid1 /tmp/evaluation/309437-1172541358/instance-309437-1172541358.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  4f1fdd7886037e39bdc6f3becce96722

RANDOM SEED= 404582315

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node1.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		: 3000.230
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		: 3000.230
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:       1765760 kB
Buffers:         40040 kB
Cached:         178024 kB
SwapCached:      19188 kB
Active:         197396 kB
Inactive:        49728 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1765760 kB
SwapTotal:     4192956 kB
SwapFree:      4156676 kB
Dirty:            6184 kB
Writeback:           0 kB
Mapped:          30420 kB
Slab:            28604 kB
Committed_AS:   834076 kB
PageTables:       1744 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= 66553 MiB

End job on node1 on Tue Feb 27 01:55:58 UTC 2007