Trace number 309150

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 0.160975 0.163293

General information on the benchmark

Namerandom/2+p/p0.9/v990/
unif2p-p0.9-v990-c3583-S461590508-14-SAT.cnf
MD5SUMf2855b2d9ccbc6dfadefd43cb9f6aec1
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.160975
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)

0.10/0.16	c try 1 flip j 102635
0.10/0.16	c A solution is found
0.10/0.16	s SATISFIABLE
0.10/0.16	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 
0.10/0.16	v 0 
0.10/0.16	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/node15/watcher-309150-1172535295 -o ROOT/results/node15/solver-309150-1172535295 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/309150-1172535295/Hybrid1 /tmp/evaluation/309150-1172535295/instance-309150-1172535295.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: 0.92 0.98 0.99 3/77 19635
/proc/meminfo: memFree=1578336/2055920 swapFree=4192812/4192956
[pid=19635] ppid=19633 vsize=244720 CPUtime=0
/proc/19635/stat : 19635 (Hybrid1) R 19633 19635 18916 0 -1 4194304 100 0 0 0 0 0 0 0 18 0 1 0 273483938 250593280 84 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134588695 0 0 4096 0 0 0 0 17 1 0 0
/proc/19635/statm: 61180 84 39 103 0 60684 0

[startup+0.106987 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 19635
/proc/meminfo: memFree=1578336/2055920 swapFree=4192812/4192956
[pid=19635] ppid=19633 vsize=246556 CPUtime=0.1
/proc/19635/stat : 19635 (Hybrid1) R 19633 19635 18916 0 -1 4194304 262 0 0 0 10 0 0 0 18 0 1 0 273483938 252473344 242 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134551672 0 0 4096 0 0 0 0 17 1 0 0
/proc/19635/statm: 61639 242 44 103 0 61143 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246556

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

[startup+0.106987 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 19635
/proc/meminfo: memFree=1578336/2055920 swapFree=4192812/4192956
[pid=19635] ppid=19633 vsize=246556 CPUtime=0.1
/proc/19635/stat : 19635 (Hybrid1) R 19633 19635 18916 0 -1 4194304 262 0 0 0 10 0 0 0 18 0 1 0 273483938 252473344 242 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134551672 0 0 4096 0 0 0 0 17 1 0 0
/proc/19635/statm: 61639 242 44 103 0 61143 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246556

Child status: 10
Real time (s): 0.163293
CPU time (s): 0.160975
CPU user time (s): 0.160975
CPU system time (s): 0
CPU usage (%): 98.5804
Max. virtual memory (cumulated for all children) (KiB): 246556

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.160975
system time used= 0
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 0.002999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node15 on Tue Feb 27 00:14:56 UTC 2007

IDJOB= 309150
IDBENCH= 20251
IDSOLVER= 115
FILE ID= node15/309150-1172535295

PBS_JOBID= 3971630

Free space on /tmp= 66554 MiB

SOLVER NAME= Hybrid1 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v990/unif2p-p0.9-v990-c3583-S461590508-14-SAT.cnf
COMMAND LINE= /tmp/evaluation/309150-1172535295/Hybrid1 /tmp/evaluation/309150-1172535295/instance-309150-1172535295.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node15/watcher-309150-1172535295 -o ROOT/results/node15/solver-309150-1172535295 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/309150-1172535295/Hybrid1 /tmp/evaluation/309150-1172535295/instance-309150-1172535295.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  f2855b2d9ccbc6dfadefd43cb9f6aec1

RANDOM SEED= 193600326

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node15.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		: 3000.276
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		: 3000.276
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:       1578808 kB
Buffers:         50508 kB
Cached:         296224 kB
SwapCached:          0 kB
Active:         248612 kB
Inactive:       158476 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1578808 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            6188 kB
Writeback:           0 kB
Mapped:          79264 kB
Slab:            55472 kB
Committed_AS:   927052 kB
PageTables:       1800 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= 66554 MiB

End job on node15 on Tue Feb 27 00:14:56 UTC 2007