Trace number 371958

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
sapsrt 2007-02-08SAT 0.140977 0.143205

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 benchmark0.05999
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)

0.10/0.14	c 
0.10/0.14	c UBCSAT version 1.1.0rr
0.10/0.14	c 
0.10/0.14	c http://www.satlib.org/ubcsat
0.10/0.14	c 
0.10/0.14	c ubcsat -h for help
0.10/0.14	c 
0.10/0.14	c  -runs 1 
0.10/0.14	c  -cutoff 4294967295 
0.10/0.14	c  -timeout 0.000000 
0.10/0.14	c  -gtimeout 0.000000 
0.10/0.14	c  -noimprove 0 
0.10/0.14	c  -target 0 
0.10/0.14	c  -wtarget 0.000000 
0.10/0.14	c  -seed 113375062 
0.10/0.14	c  -solve 0 
0.10/0.14	c  -find,-numsol 0 
0.10/0.14	c  -findunique 0 
0.10/0.14	c  -srestart 0 
0.10/0.14	c  -prestart 0.000000 
0.10/0.14	c  -drestart 0 
0.10/0.14	c 
0.10/0.14	c  -alpha 1.126000 
0.10/0.14	c  -rho 0.666000 
0.10/0.14	c  -ps 0.033000 
0.10/0.14	c  -wp 0.060000 
0.10/0.14	c  -sapsthresh -0.100000 
0.10/0.14	c 
0.10/0.14	s SATISFIABLE
0.10/0.14	v  1 -2 3 4 5 6 -7 8 -9 -10
0.10/0.14	v  -11 12 -13 14 -15 -16 -17 18 19 20
0.10/0.14	v  21 -22 23 24 25 -26 27 -28 -29 30
0.10/0.14	v  -31 32 -33 34 35 36 -37 38 -39 -40
0.10/0.14	v  41 -42 -43 44 -45 -46 -47 -48 49 50
0.10/0.14	v  -51 -52 -53 -54 -55 56 57 58 -59 60
0.10/0.14	v  61 62 -63 -64 65 66 -67 68 69 -70
0.10/0.14	v  71 -72 -73 -74 75 76 -77 78 79 80
0.10/0.14	v  81 82 83 -84 -85 -86 -87 88 -89 90
0.10/0.14	v  -91 -92 93 -94 95 96 -97 -98 -99 -100
0.10/0.14	v  101 -102 -103 -104 105 -106 107 -108 -109 -110
0.10/0.14	v  111 112 -113 -114 -115 -116 117 -118 -119 -120
0.10/0.14	v  121 -122 -123 124 -125 126 -127 -128 129 -130
0.10/0.14	v  131 -132 133 -134 135 -136 -137 -138 -139 -140
0.10/0.14	v  141 142 -143 144 145 -146 -147 148 149 -150
0.10/0.14	v  151 152 153 154 155 156 -157 -158 -159 -160
0.10/0.14	v  161 -162 163 -164 -165 166 -167 -168 169 -170
0.10/0.14	v  -171 172 173 174 -175 -176 177 178 179 -180
0.10/0.14	v  -181 -182 -183 -184 185 -186 187 188 -189 190
0.10/0.14	v  -191 -192 -193 194 195 -196 -197 -198 199 200
0.10/0.14	v  -201 202 -203 204 -205 206 -207 208 209 -210
0.10/0.14	v  -211 212 213 -214 215 -216 -217 218 -219 -220
0.10/0.14	v  -221 -222 -223 224 -225 -226 -227 228 229 -230
0.10/0.14	v  231 232 233 -234 235 236 -237 238 -239 240
0.10/0.14	v  241 242 -243 -244 245 246 247 248 -249 250
0.10/0.14	v  251 252 -253 -254 255 256 257 258 259 -260
0.10/0.14	v  261 -262 -263 264 265 -266 267 -268 -269 -270
0.10/0.14	v  271 -272 -273 274 -275 -276 277 -278 279 280
0.10/0.14	v  -281 -282 283 -284 285 286 287 288 289 -290
0.10/0.14	v  -291 292 -293 -294 295 -296 297 -298 299 -300
0.10/0.14	v  301 -302 -303 -304 305 306 307 -308 -309 -310
0.10/0.14	v  311 -312 -313 314 315 316 -317 -318 -319 -320
0.10/0.14	v  321 322 323 -324 -325 -326 -327 328 -329 -330
0.10/0.14	v  -331 332 -333 -334 335 336 337 -338 -339 -340
0.10/0.14	v  341 342 -343 -344 345 -346 347 -348 349 -350
0.10/0.14	v  -351 -352 -353 -354 -355 -356 -357 -358 -359 360
0.10/0.14	v  -361 -362 363 -364 365 366 367 -368 369 370
0.10/0.14	v  -371 372 -373 374 -375 -376 377 378 -379 -380
0.10/0.14	v  -381 -382 -383 -384 -385 386 -387 -388 389 390
0.10/0.14	v  -391 -392 393 -394 -395 396 -397 -398 399 400
0.10/0.14	v  401 -402 -403 -404 405 406 -407 -408 -409 -410
0.10/0.14	v  411 412 413 -414 415 416 -417 418 419 420
0.10/0.14	v  421 422 -423 -424 425 426 -427 428 429 430
0.10/0.14	v  -431 432 433 434 -435 436 437 -438 439 440
0.10/0.14	v  441 442 -443 -444 445 -446 447 448 449 450
0.10/0.14	v  451 452 453 -454 455 -456 -457 458 -459 -460
0.10/0.14	v  -461 -462 463 -464 465 466 -467 468 469 -470
0.10/0.14	v  -471 472 -473 474 475 -476 477 -478 479 -480
0.10/0.14	v  481 -482 483 -484 -485 -486 -487 -488 489 490
0.10/0.14	v  -491 492 493 494 495 -496 497 498 -499 -500
0.10/0.14	v  501 -502 -503 504 -505 -506 -507 508 509 -510
0.10/0.14	v  -511 512 513 514 -515 516 -517 -518 -519 -520
0.10/0.14	v  -521 522 523 -524 -525 526 527 528 -529 -530
0.10/0.14	v  -531 -532 533 534 -535 536 537 -538 539 -540
0.10/0.14	v  -541 542 543 -544 -545 -546 -547 -548 549 -550
0.10/0.14	v  551 552 -553 554 -555 556 557 -558 559 -560
0.10/0.14	v  561 562 563 564 565 -566 567 -568 -569 570
0.10/0.14	v  -571 572 573 574 -575 576 -577 -578 579 580
0.10/0.14	v  581 582 583 -584 -585 586 -587 588 -589 590
0.10/0.14	v  591 592 -593 594 -595 596 -597 598 599 -600
0.10/0.14	v  601 -602 -603 -604 -605 -606 607 -608 609 -610
0.10/0.14	v  -611 612 -613 -614 615 -616 -617 -618 619 -620
0.10/0.14	v  -621 622 623 -624 625 -626 627 628 -629 630
0.10/0.14	v  631 -632 -633 -634 635 -636 637 -638 639 640
0.10/0.14	v  -641 -642 -643 644 -645 646 647 648 -649 650
0.10/0.14	v  651 -652 653 -654 655 656 -657 -658 659 660
0.10/0.14	v  661 662 -663 -664 665 -666 -667 -668 -669 670
0.10/0.14	v  671 -672 -673 674 -675 676 -677 678 679 -680
0.10/0.14	v  681 -682 -683 684 -685 686 -687 -688 -689 -690
0.10/0.14	v  -691 -692 693 694 695 -696 -697 -698 699 700
0.10/0.14	v  701 702 703 704 705 -706 -707 -708 -709 -710
0.10/0.14	v  711 -712 713 -714 715 716 -717 -718 -719 -720
0.10/0.14	v  -721 -722 -723 724 -725 -726 -727 -728 -729 730
0.10/0.14	v  731 732 733 734 735 -736 737 -738 739 740
0.10/0.14	v  -741 742 743 -744 745 -746 -747 -748 -749 -750
0.10/0.14	v  751 -752 -753 -754 -755 756 -757 -758 -759 760
0.10/0.14	v  -761 762 763 764 -765 -766 767 768 769 770
0.10/0.14	v  -771 -772 -773 -774 775 -776 -777 -778 -779 780
0.10/0.14	v  781 782 -783 784 785 786 787 788 789 -790
0.10/0.14	v  -791 -792 793 794 -795 -796 797 -798 799 -800
0.10/0.14	v  801 -802 803 804 805 -806 807 -808 -809 -810
0.10/0.14	v  811 -812 -813 -814 815 -816 817 -818 819 820
0.10/0.14	v  821 822 823 824 825 -826 -827 828 829 830
0.10/0.14	v  -831 -832 -833 -834 835 836 837 -838 839 -840
0.10/0.14	v  -841 -842 843 844 845 -846 847 848 849 850
0.10/0.14	v  851 852 -853 -854 855 -856 -857 -858 859 -860
0.10/0.14	v  -861 -862 -863 -864 865 -866 867 868 869 -870
0.10/0.14	v  -871 -872 -873 -874 875 876 -877 -878 879 -880
0.10/0.14	v  881 882 -883 884 885 -886 -887 -888 889 890
0.10/0.14	v  891 -892 893 894 895 -896 -897 898 899 -900
0.10/0.14	v  901 902 -903 904 905 906 -907 -908 -909 -910
0.10/0.14	v  -911 -912 -913 -914 915 -916 -917 918 919 920
0.10/0.14	v  -921 922 -923 924 925 926 927 928 929 930
0.10/0.14	v  931 932 933 -934 935 -936 937 -938 939 940
0.10/0.14	v  941 942 943 -944 -945 946 947 -948 -949 -950
0.10/0.14	v  -951 952 -953 -954 -955 -956 957 -958 -959 960
0.10/0.14	v  961 -962 963 -964 965 966 -967 -968 -969 -970
0.10/0.14	v  -971 -972 973 -974 975 -976 977 -978 979 980
0.10/0.14	v  981 -982 983 984 985 986 987 988 989 -990
0.10/0.14	v  0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node50/watcher-371958-1177549135 -o ROOT/results/node50/solver-371958-1177549135 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/371958-1177549135/sapsrt /tmp/evaluation/371958-1177549135/instance-371958-1177549135.cnf 113375062 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 0.89 0.92 0.90 3/64 21612
/proc/meminfo: memFree=1605096/2055920 swapFree=4183596/4192956
[pid=21612] ppid=21610 vsize=5160 CPUtime=0
/proc/21612/stat : 21612 (sapsrt) R 21610 21612 20728 0 -1 4194304 158 0 0 0 0 0 0 0 18 0 1 0 109758657 5283840 144 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134692457 0 0 4096 0 0 0 0 17 0 0 0
/proc/21612/statm: 1290 144 78 159 0 1129 0

[startup+0.089597 s]
/proc/loadavg: 0.89 0.92 0.90 3/64 21612
/proc/meminfo: memFree=1605096/2055920 swapFree=4183596/4192956
[pid=21612] ppid=21610 vsize=5156 CPUtime=0.08
/proc/21612/stat : 21612 (sapsrt) R 21610 21612 20728 0 -1 4194304 209 0 0 0 8 0 0 0 18 0 1 0 109758657 5279744 194 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134550703 0 0 4096 0 0 0 0 17 0 0 0
/proc/21612/statm: 1289 194 83 159 0 1128 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5156

[startup+0.102597 s]
/proc/loadavg: 0.89 0.92 0.90 3/64 21612
/proc/meminfo: memFree=1605096/2055920 swapFree=4183596/4192956
[pid=21612] ppid=21610 vsize=5156 CPUtime=0.1
/proc/21612/stat : 21612 (sapsrt) R 21610 21612 20728 0 -1 4194304 209 0 0 0 10 0 0 0 18 0 1 0 109758657 5279744 194 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134714620 0 0 4096 0 0 0 0 17 0 0 0
/proc/21612/statm: 1289 194 83 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

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

Child status: 10
Real time (s): 0.143205
CPU time (s): 0.140977
CPU user time (s): 0.138978
CPU system time (s): 0.001999
CPU usage (%): 98.4442
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.138978
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= 224
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= 9
involuntary context switches= 1

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node50 on Thu Apr 26 00:58:55 UTC 2007

IDJOB= 371958
IDBENCH= 20259
IDSOLVER= 187
FILE ID= node50/371958-1177549135

PBS_JOBID= 4696580

Free space on /tmp= 66520 MiB

SOLVER NAME= sapsrt 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/371958-1177549135/sapsrt /tmp/evaluation/371958-1177549135/instance-371958-1177549135.cnf  113375062       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node50/watcher-371958-1177549135 -o ROOT/results/node50/solver-371958-1177549135 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/371958-1177549135/sapsrt /tmp/evaluation/371958-1177549135/instance-371958-1177549135.cnf  113375062       

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  4f1fdd7886037e39bdc6f3becce96722

RANDOM SEED= 113375062

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node50.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		: 3000.232
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		: 3000.232
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:       1605576 kB
Buffers:         37428 kB
Cached:         338920 kB
SwapCached:       4384 kB
Active:         193056 kB
Inactive:       195024 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1605576 kB
SwapTotal:     4192956 kB
SwapFree:      4183596 kB
Dirty:            2352 kB
Writeback:           0 kB
Mapped:          16348 kB
Slab:            48276 kB
Committed_AS:  2978732 kB
PageTables:       1464 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= 66520 MiB

End job on node50 on Thu Apr 26 00:58:55 UTC 2007