Trace number 371951

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 0.153976 0.156298

General information on the benchmark

Namerandom/2+p/p0.9/v990/
unif2p-p0.9-v990-c3583-S516218553-20-SAT.cnf
MD5SUM028909e91326b4c0afcc33805fc40234
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.153976
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)

0.10/0.15	c 
0.10/0.15	c UBCSAT version 1.1.0rr
0.10/0.15	c 
0.10/0.15	c http://www.satlib.org/ubcsat
0.10/0.15	c 
0.10/0.15	c ubcsat -h for help
0.10/0.15	c 
0.10/0.15	c  -runs 1 
0.10/0.15	c  -cutoff 4294967295 
0.10/0.15	c  -timeout 0.000000 
0.10/0.15	c  -gtimeout 0.000000 
0.10/0.15	c  -noimprove 0 
0.10/0.15	c  -target 0 
0.10/0.15	c  -wtarget 0.000000 
0.10/0.15	c  -seed 140841614 
0.10/0.15	c  -solve 0 
0.10/0.15	c  -find,-numsol 0 
0.10/0.15	c  -findunique 0 
0.10/0.15	c  -srestart 0 
0.10/0.15	c  -prestart 0.000000 
0.10/0.15	c  -drestart 0 
0.10/0.15	c 
0.10/0.15	c  -alpha 1.126000 
0.10/0.15	c  -rho 0.666000 
0.10/0.15	c  -ps 0.033000 
0.10/0.15	c  -wp 0.060000 
0.10/0.15	c  -sapsthresh -0.100000 
0.10/0.15	c 
0.10/0.15	s SATISFIABLE
0.10/0.15	v  -1 2 -3 -4 -5 -6 -7 8 -9 -10
0.10/0.15	v  -11 12 13 14 15 -16 -17 18 -19 -20
0.10/0.15	v  -21 22 23 24 25 26 27 28 -29 -30
0.10/0.15	v  -31 32 -33 34 -35 36 -37 -38 39 -40
0.10/0.15	v  41 -42 43 -44 45 46 47 -48 -49 50
0.10/0.15	v  51 52 53 -54 -55 -56 57 -58 -59 60
0.10/0.15	v  61 -62 63 64 65 66 67 68 -69 -70
0.10/0.15	v  -71 -72 73 74 -75 -76 -77 -78 -79 80
0.10/0.15	v  81 -82 83 -84 -85 -86 87 88 89 -90
0.10/0.15	v  91 92 93 -94 -95 -96 97 98 -99 100
0.10/0.15	v  -101 102 103 -104 -105 106 107 108 -109 -110
0.10/0.15	v  111 112 -113 -114 115 116 -117 118 -119 120
0.10/0.15	v  121 -122 123 -124 125 -126 -127 128 -129 130
0.10/0.15	v  -131 132 -133 -134 -135 136 137 -138 139 140
0.10/0.15	v  141 -142 143 144 -145 -146 -147 -148 -149 150
0.10/0.15	v  151 -152 153 -154 155 -156 157 -158 -159 160
0.10/0.15	v  -161 162 163 164 -165 166 -167 168 169 -170
0.10/0.15	v  171 172 -173 -174 -175 176 177 178 179 -180
0.10/0.15	v  -181 182 -183 184 185 186 187 188 -189 -190
0.10/0.15	v  191 192 -193 194 195 -196 -197 198 -199 -200
0.10/0.15	v  201 202 203 204 205 206 -207 208 209 210
0.10/0.15	v  211 -212 -213 -214 -215 -216 -217 -218 -219 220
0.10/0.15	v  -221 222 223 -224 225 226 227 228 -229 -230
0.10/0.15	v  -231 232 233 -234 -235 -236 -237 238 239 -240
0.10/0.15	v  241 242 -243 -244 245 -246 -247 248 -249 250
0.10/0.15	v  251 252 253 -254 255 -256 -257 258 259 260
0.10/0.15	v  -261 262 -263 -264 265 266 -267 268 -269 270
0.10/0.15	v  -271 272 -273 274 -275 276 -277 278 279 280
0.10/0.15	v  -281 282 283 284 285 286 287 288 289 290
0.10/0.15	v  -291 292 -293 294 -295 296 297 -298 299 -300
0.10/0.15	v  -301 302 -303 304 305 306 307 -308 -309 -310
0.10/0.15	v  -311 312 -313 314 -315 316 317 -318 319 -320
0.10/0.15	v  321 -322 323 324 -325 326 327 -328 -329 330
0.10/0.15	v  331 -332 -333 334 335 336 -337 338 -339 -340
0.10/0.15	v  341 342 -343 -344 -345 -346 -347 -348 -349 -350
0.10/0.15	v  351 -352 -353 354 -355 -356 357 -358 359 360
0.10/0.15	v  -361 -362 363 -364 -365 366 -367 368 369 -370
0.10/0.15	v  371 372 -373 374 -375 376 377 -378 -379 -380
0.10/0.15	v  -381 382 383 -384 -385 386 387 388 389 -390
0.10/0.15	v  391 392 -393 -394 -395 -396 397 -398 399 -400
0.10/0.15	v  -401 -402 -403 404 -405 406 -407 408 409 -410
0.10/0.15	v  -411 412 -413 414 -415 416 -417 -418 -419 420
0.10/0.15	v  -421 -422 423 424 -425 426 -427 428 429 430
0.10/0.15	v  431 432 -433 434 435 436 437 438 -439 -440
0.10/0.15	v  441 442 443 444 445 -446 -447 448 -449 450
0.10/0.15	v  -451 -452 -453 454 455 456 -457 -458 -459 -460
0.10/0.15	v  461 -462 463 464 -465 -466 -467 468 469 470
0.10/0.15	v  471 -472 473 474 -475 -476 477 -478 479 480
0.10/0.15	v  -481 482 483 484 485 -486 -487 488 -489 -490
0.10/0.15	v  -491 -492 -493 -494 -495 -496 -497 -498 499 500
0.10/0.15	v  -501 502 -503 -504 -505 -506 507 -508 -509 -510
0.10/0.15	v  511 512 513 -514 515 -516 -517 -518 519 -520
0.10/0.15	v  521 -522 -523 -524 525 -526 -527 -528 529 530
0.10/0.15	v  531 -532 -533 534 535 536 537 -538 -539 540
0.10/0.15	v  -541 -542 543 -544 545 546 547 -548 -549 550
0.10/0.15	v  551 552 -553 -554 555 -556 557 -558 559 -560
0.10/0.15	v  561 562 563 564 -565 -566 -567 568 -569 -570
0.10/0.15	v  571 -572 573 574 575 576 -577 578 -579 580
0.10/0.15	v  581 582 -583 -584 -585 586 587 588 589 -590
0.10/0.15	v  591 592 593 -594 -595 -596 -597 598 -599 -600
0.10/0.15	v  601 602 603 -604 605 -606 607 608 609 -610
0.10/0.15	v  611 612 -613 -614 -615 616 617 -618 -619 620
0.10/0.15	v  621 -622 -623 -624 625 -626 -627 628 -629 630
0.10/0.15	v  -631 -632 633 634 635 -636 -637 638 639 640
0.10/0.15	v  -641 -642 643 -644 645 646 647 648 649 650
0.10/0.15	v  -651 -652 653 654 655 -656 -657 658 -659 -660
0.10/0.15	v  661 662 663 -664 -665 666 -667 -668 669 -670
0.10/0.15	v  -671 672 673 674 675 676 -677 -678 -679 -680
0.10/0.15	v  681 -682 683 -684 -685 -686 -687 688 689 690
0.10/0.15	v  691 692 -693 694 695 696 697 -698 -699 700
0.10/0.15	v  -701 702 -703 704 -705 706 -707 -708 -709 -710
0.10/0.15	v  711 -712 -713 -714 -715 716 -717 718 719 720
0.10/0.15	v  721 722 723 -724 -725 726 727 728 -729 -730
0.10/0.15	v  -731 732 -733 -734 -735 736 737 738 -739 740
0.10/0.15	v  -741 -742 743 -744 -745 746 -747 748 -749 750
0.10/0.15	v  -751 -752 -753 -754 755 756 -757 -758 -759 760
0.10/0.15	v  761 762 763 764 765 -766 -767 768 -769 770
0.10/0.15	v  771 772 773 774 775 -776 777 778 -779 -780
0.10/0.15	v  781 -782 -783 -784 785 -786 -787 -788 789 790
0.10/0.15	v  791 -792 -793 -794 795 796 -797 798 -799 800
0.10/0.15	v  -801 802 803 -804 805 806 807 -808 809 -810
0.10/0.15	v  811 812 -813 814 815 816 817 -818 819 -820
0.10/0.15	v  821 822 823 -824 825 826 827 828 829 -830
0.10/0.15	v  831 -832 833 834 -835 836 -837 -838 -839 840
0.10/0.15	v  841 -842 -843 844 845 846 847 848 849 -850
0.10/0.15	v  851 852 -853 854 855 -856 857 858 859 -860
0.10/0.15	v  -861 862 863 -864 865 866 867 868 -869 870
0.10/0.15	v  871 -872 -873 -874 875 876 -877 -878 879 -880
0.10/0.15	v  881 882 883 884 -885 -886 -887 888 -889 -890
0.10/0.15	v  891 892 -893 -894 895 896 -897 -898 -899 -900
0.10/0.15	v  -901 902 -903 -904 -905 -906 907 -908 909 -910
0.10/0.15	v  -911 912 913 -914 -915 -916 917 -918 -919 920
0.10/0.15	v  921 922 923 -924 -925 -926 -927 928 929 -930
0.10/0.15	v  -931 -932 933 -934 -935 -936 -937 -938 939 -940
0.10/0.15	v  941 -942 -943 944 945 946 -947 -948 -949 950
0.10/0.15	v  951 952 953 -954 955 956 -957 958 -959 960
0.10/0.15	v  -961 962 963 964 -965 966 -967 -968 969 -970
0.10/0.15	v  971 972 973 974 975 976 -977 978 979 980
0.10/0.15	v  -981 982 983 984 -985 986 987 -988 -989 990
0.10/0.15	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/node20/watcher-371951-1177549098 -o ROOT/results/node20/solver-371951-1177549098 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/371951-1177549098/sapsrt /tmp/evaluation/371951-1177549098/instance-371951-1177549098.cnf 140841614 

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: 1.01 0.99 0.91 3/77 26043
/proc/meminfo: memFree=1758312/2055920 swapFree=4154124/4192956
[pid=26043] ppid=26041 vsize=5160 CPUtime=0
/proc/26043/stat : 26043 (sapsrt) R 26041 26043 25519 0 -1 4194304 156 0 0 0 0 0 0 0 18 0 1 0 202827156 5283840 142 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134799309 0 0 4096 0 0 0 0 17 1 0 0
/proc/26043/statm: 1290 142 78 159 0 1129 0

[startup+0.0146551 s]
/proc/loadavg: 1.01 0.99 0.91 3/77 26043
/proc/meminfo: memFree=1758312/2055920 swapFree=4154124/4192956
[pid=26043] ppid=26041 vsize=5156 CPUtime=0.01
/proc/26043/stat : 26043 (sapsrt) R 26041 26043 25519 0 -1 4194304 209 0 0 0 1 0 0 0 18 0 1 0 202827156 5279744 194 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134714444 0 0 4096 0 0 0 0 17 1 0 0
/proc/26043/statm: 1289 194 83 159 0 1128 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 5156

[startup+0.102672 s]
/proc/loadavg: 1.01 0.99 0.91 3/77 26043
/proc/meminfo: memFree=1758312/2055920 swapFree=4154124/4192956
[pid=26043] ppid=26041 vsize=5156 CPUtime=0.1
/proc/26043/stat : 26043 (sapsrt) R 26041 26043 25519 0 -1 4194304 209 0 0 0 10 0 0 0 18 0 1 0 202827156 5279744 194 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134714356 0 0 4096 0 0 0 0 17 1 0 0
/proc/26043/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): 0.156298
CPU time (s): 0.153976
CPU user time (s): 0.153976
CPU system time (s): 0
CPU usage (%): 98.5144
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.153976
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= 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= 8
involuntary context switches= 5

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node20 on Thu Apr 26 00:58:18 UTC 2007

IDJOB= 371951
IDBENCH= 20256
IDSOLVER= 187
FILE ID= node20/371951-1177549098

PBS_JOBID= 4696586

Free space on /tmp= 66470 MiB

SOLVER NAME= sapsrt 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v990/unif2p-p0.9-v990-c3583-S516218553-20-SAT.cnf
COMMAND LINE= /tmp/evaluation/371951-1177549098/sapsrt /tmp/evaluation/371951-1177549098/instance-371951-1177549098.cnf  140841614       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node20/watcher-371951-1177549098 -o ROOT/results/node20/solver-371951-1177549098 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/371951-1177549098/sapsrt /tmp/evaluation/371951-1177549098/instance-371951-1177549098.cnf  140841614       

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  028909e91326b4c0afcc33805fc40234

RANDOM SEED= 140841614

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node20.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		: 3000.265
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		: 3000.265
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:       1758720 kB
Buffers:         40860 kB
Cached:         186812 kB
SwapCached:      18148 kB
Active:         140456 kB
Inactive:       113108 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1758720 kB
SwapTotal:     4192956 kB
SwapFree:      4154124 kB
Dirty:            2208 kB
Writeback:           0 kB
Mapped:          31128 kB
Slab:            29228 kB
Committed_AS:  2083424 kB
PageTables:       1748 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= 66470 MiB

End job on node20 on Thu Apr 26 00:58:18 UTC 2007