Trace number 309396

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 0.641901 0.64352

General information on the benchmark

Namerandom/2+p/p0.9/v990/
unif2p-p0.9-v990-c3583-S218623752-19-SAT.cnf
MD5SUM202e2057dc8114964b5b3ec133b76d59
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.230964
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)

0.61/0.64	c try 1 flip j 440783
0.61/0.64	c A solution is found
0.61/0.64	s SATISFIABLE
0.61/0.64	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 
0.61/0.64	v 0 
0.61/0.64	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/node19/watcher-309396-1172540759 -o ROOT/results/node19/solver-309396-1172540759 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/309396-1172540759/Hybrid1 /tmp/evaluation/309396-1172540759/instance-309396-1172540759.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: 1.84 1.82 1.45 3/77 26268
/proc/meminfo: memFree=1280824/2055920 swapFree=4192812/4192956
[pid=26268] ppid=26266 vsize=244720 CPUtime=0
/proc/26268/stat : 26268 (Hybrid1) R 26266 26268 24963 0 -1 4194304 103 0 0 0 0 0 0 0 18 0 1 0 274030028 250593280 87 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134604589 0 0 4096 0 0 0 0 17 1 0 0
/proc/26268/statm: 61180 87 39 103 0 60684 0

[startup+0.10741 s]
/proc/loadavg: 1.84 1.82 1.45 3/77 26268
/proc/meminfo: memFree=1280824/2055920 swapFree=4192812/4192956
[pid=26268] ppid=26266 vsize=246556 CPUtime=0.1
/proc/26268/stat : 26268 (Hybrid1) R 26266 26268 24963 0 -1 4194304 262 0 0 0 10 0 0 0 18 0 1 0 274030028 252473344 242 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134551442 0 0 4096 0 0 0 0 17 1 0 0
/proc/26268/statm: 61639 242 44 103 0 61143 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246556

[startup+0.519454 s]
/proc/loadavg: 1.84 1.82 1.45 3/77 26268
/proc/meminfo: memFree=1280824/2055920 swapFree=4192812/4192956
[pid=26268] ppid=26266 vsize=246556 CPUtime=0.51
/proc/26268/stat : 26268 (Hybrid1) R 26266 26268 24963 0 -1 4194304 262 0 0 0 51 0 0 0 22 0 1 0 274030028 252473344 242 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134551597 0 0 4096 0 0 0 0 17 1 0 0
/proc/26268/statm: 61639 242 44 103 0 61143 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 246556

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

[startup+0.622465 s]
/proc/loadavg: 1.84 1.82 1.45 3/77 26268
/proc/meminfo: memFree=1280824/2055920 swapFree=4192812/4192956
[pid=26268] ppid=26266 vsize=246556 CPUtime=0.61
/proc/26268/stat : 26268 (Hybrid1) R 26266 26268 24963 0 -1 4194304 262 0 0 0 61 0 0 0 22 0 1 0 274030028 252473344 242 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134546391 0 0 4096 0 0 0 0 17 1 0 0
/proc/26268/statm: 61639 242 44 103 0 61143 0
Current children cumulated CPU time (s) 0.61
Current children cumulated vsize (KiB) 246556

Child status: 10
Real time (s): 0.64352
CPU time (s): 0.641901
CPU user time (s): 0.638902
CPU system time (s): 0.002999
CPU usage (%): 99.7484
Max. virtual memory (cumulated for all children) (KiB): 246556

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.638902
system time used= 0.002999
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= 2

runsolver used 0.005999 second user time and 0.002999 second system time

The end

Launcher Data (download as text)

Begin job on node19 on Tue Feb 27 01:46:00 UTC 2007

IDJOB= 309396
IDBENCH= 20258
IDSOLVER= 115
FILE ID= node19/309396-1172540759

PBS_JOBID= 3971631

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-S218623752-19-SAT.cnf
COMMAND LINE= /tmp/evaluation/309396-1172540759/Hybrid1 /tmp/evaluation/309396-1172540759/instance-309396-1172540759.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node19/watcher-309396-1172540759 -o ROOT/results/node19/solver-309396-1172540759 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/309396-1172540759/Hybrid1 /tmp/evaluation/309396-1172540759/instance-309396-1172540759.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  202e2057dc8114964b5b3ec133b76d59

RANDOM SEED= 493947079

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node19.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		: 3000.214
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		: 3000.214
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:       1281296 kB
Buffers:         66140 kB
Cached:         587136 kB
SwapCached:          0 kB
Active:         311876 kB
Inactive:       385680 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1281296 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            6180 kB
Writeback:           0 kB
Mapped:          63172 kB
Slab:            62656 kB
Committed_AS:  1009624 kB
PageTables:       1760 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 node19 on Tue Feb 27 01:46:01 UTC 2007