Trace number 309972

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
FH 2007-02-08SAT 0.05599 0.057275

General information on the benchmark

Namerandom/2+p/p0.9/v1170/
unif2p-p0.9-v1170-c4235-S1449408666-02-SAT.cnf
MD5SUM555d3271dcf55d0b05dd23da8baa6ad3
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.05599
Satisfiable
(Un)Satisfiability was proved
Number of variables1170
Number of clauses4234
Sum of the clauses size12279
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2423
Number of clauses of size 33811
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 27337
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 -991 992 993 994 995 -996 997 998 999 -1000 1001 -1002 -1003 -1004 1005 -1006 1007 1008 1009 1010 -1011 1012 -1013 -1014 1015 -1016 -1017 -1018 1019 1020 1021 1022 -1023 -1024 1025 1026 1027 -1028 -1029 -1030 -1031 -1032 1033 -1034 -1035 1036 -1037 1038 -1039 -1040 1041 -1042 -1043 1044 1045 -1046 -1047 1048 -1049 -1050 1051 1052 1053 -1054 -1055 1056 -1057 -1058 1059 -1060 1061 -1062 -1063 -1064 1065 -1066 1067 -1068 -1069 -1070 1071 -1072 -1073 -1074 1075 -1076 1077 -1078 1079 1080 1081 1082 -1083 -1084 -1085 1086 1087 1088 1089 1090 1091 -1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 -1102 1103 -1104 1105 1106 1107 -1108 -1109 1110 -1111 1112 1113 1114 1115 -1116 -1117 1118 1119 -1120 -1121 1122 -1123 1124 -1125 1126 -1127 -1128 -1129 1130 1131 -1132 1133 -1134 -1135 -1136 1137 1138 -1139 -1140 1141 -1142 -1143 1144 1145 1146 1147 1148 1149 -1150 1151 -1152 -1153 -1154 -1155 1156 1157 1158 -1159 -1160 -1161 1162 -1163 -1164 -1165 -1166 -1167 -1168 1169 1170 
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/node66/watcher-309972-1172551046 -o ROOT/results/node66/solver-309972-1172551046 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/309972-1172551046/FH /tmp/evaluation/309972-1172551046/instance-309972-1172551046.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: 0.91 0.97 0.98 3/64 15446
/proc/meminfo: memFree=1814640/2055920 swapFree=4179812/4192956
[pid=15446] ppid=15444 vsize=244720 CPUtime=0
/proc/15446/stat : 15446 (FH) R 15444 15446 13895 0 -1 4194304 101 0 0 0 0 0 0 0 18 0 1 0 275062112 250593280 85 18446744073709551615 134512640 134936988 4294956720 18446744073709551615 134605645 0 0 4096 0 0 0 0 17 0 0 0
/proc/15446/statm: 61180 85 36 103 0 60684 0

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

Child status: 10
Real time (s): 0.057275
CPU time (s): 0.05599
CPU user time (s): 0.053991
CPU system time (s): 0.001999
CPU usage (%): 97.7565
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.053991
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= 296
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 04:37:26 UTC 2007

IDJOB= 309972
IDBENCH= 20274
IDSOLVER= 117
FILE ID= node66/309972-1172551046

PBS_JOBID= 3971834

Free space on /tmp= 66556 MiB

SOLVER NAME= FH 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v1170/unif2p-p0.9-v1170-c4235-S1449408666-02-SAT.cnf
COMMAND LINE= /tmp/evaluation/309972-1172551046/FH /tmp/evaluation/309972-1172551046/instance-309972-1172551046.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node66/watcher-309972-1172551046 -o ROOT/results/node66/solver-309972-1172551046 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/309972-1172551046/FH /tmp/evaluation/309972-1172551046/instance-309972-1172551046.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  555d3271dcf55d0b05dd23da8baa6ad3

RANDOM SEED= 913235974

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:       1815048 kB
Buffers:         29848 kB
Cached:         158656 kB
SwapCached:       7404 kB
Active:          99440 kB
Inactive:       102432 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1815048 kB
SwapTotal:     4192956 kB
SwapFree:      4179812 kB
Dirty:            6280 kB
Writeback:           0 kB
Mapped:          15440 kB
Slab:            25072 kB
Committed_AS:   672772 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= 66556 MiB

End job on node66 on Tue Feb 27 04:37:26 UTC 2007