Trace number 371955

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 0.480926 0.483849

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 benchmark0.060989
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)

0.40/0.48	c 
0.40/0.48	c UBCSAT version 1.1.0rr
0.40/0.48	c 
0.40/0.48	c http://www.satlib.org/ubcsat
0.40/0.48	c 
0.40/0.48	c ubcsat -h for help
0.40/0.48	c 
0.40/0.48	c  -runs 1 
0.40/0.48	c  -cutoff 4294967295 
0.40/0.48	c  -timeout 0.000000 
0.40/0.48	c  -gtimeout 0.000000 
0.40/0.48	c  -noimprove 0 
0.40/0.48	c  -target 0 
0.40/0.48	c  -wtarget 0.000000 
0.40/0.48	c  -seed 962311813 
0.40/0.48	c  -solve 0 
0.40/0.48	c  -find,-numsol 0 
0.40/0.48	c  -findunique 0 
0.40/0.48	c  -srestart 0 
0.40/0.48	c  -prestart 0.000000 
0.40/0.48	c  -drestart 0 
0.40/0.48	c 
0.40/0.48	c  -alpha 1.126000 
0.40/0.48	c  -rho 0.666000 
0.40/0.48	c  -ps 0.033000 
0.40/0.48	c  -wp 0.060000 
0.40/0.48	c  -sapsthresh -0.100000 
0.40/0.48	c 
0.40/0.48	s SATISFIABLE
0.40/0.48	v  1 -2 3 -4 5 6 -7 -8 9 -10
0.40/0.48	v  11 -12 13 14 -15 -16 17 18 19 -20
0.40/0.48	v  -21 22 -23 24 -25 -26 27 28 -29 30
0.40/0.48	v  31 -32 -33 -34 35 -36 37 -38 -39 -40
0.40/0.48	v  41 -42 -43 44 45 -46 -47 -48 49 50
0.40/0.48	v  51 -52 -53 54 55 -56 57 58 59 60
0.40/0.48	v  -61 62 63 -64 65 66 -67 -68 -69 70
0.40/0.48	v  -71 72 -73 74 75 76 -77 78 79 -80
0.40/0.48	v  81 82 83 84 -85 -86 87 -88 -89 90
0.40/0.48	v  -91 92 93 -94 95 96 97 -98 -99 -100
0.40/0.48	v  101 -102 -103 -104 -105 -106 -107 108 -109 -110
0.40/0.48	v  111 112 -113 -114 115 116 -117 -118 -119 120
0.40/0.48	v  -121 -122 123 124 -125 -126 127 128 129 -130
0.40/0.48	v  131 -132 133 134 -135 136 -137 -138 -139 -140
0.40/0.48	v  -141 142 143 -144 -145 -146 147 -148 149 -150
0.40/0.48	v  151 -152 -153 -154 155 156 157 158 -159 160
0.40/0.48	v  161 162 -163 164 165 -166 -167 -168 169 -170
0.40/0.48	v  -171 -172 -173 -174 -175 -176 -177 178 -179 -180
0.40/0.48	v  -181 -182 183 184 185 -186 187 188 -189 -190
0.40/0.48	v  191 -192 193 -194 195 196 -197 -198 -199 200
0.40/0.48	v  -201 -202 -203 -204 -205 -206 -207 -208 209 210
0.40/0.48	v  211 -212 213 214 -215 -216 217 218 -219 220
0.40/0.48	v  221 222 223 224 225 -226 227 -228 -229 230
0.40/0.48	v  231 232 -233 234 235 -236 -237 238 239 240
0.40/0.48	v  -241 242 -243 244 245 -246 -247 248 249 -250
0.40/0.48	v  -251 252 -253 254 255 -256 257 -258 -259 260
0.40/0.48	v  -261 262 -263 264 265 266 267 268 269 270
0.40/0.48	v  271 272 273 -274 275 -276 277 -278 -279 280
0.40/0.48	v  281 282 -283 284 285 -286 -287 288 289 -290
0.40/0.48	v  -291 292 293 294 -295 296 -297 298 -299 -300
0.40/0.48	v  301 302 303 304 -305 -306 307 -308 -309 -310
0.40/0.48	v  -311 -312 313 314 -315 316 317 318 -319 -320
0.40/0.48	v  321 -322 -323 -324 325 -326 327 -328 329 330
0.40/0.48	v  331 332 333 334 -335 336 -337 338 339 340
0.40/0.48	v  341 342 343 -344 345 -346 -347 -348 -349 -350
0.40/0.48	v  351 352 -353 -354 -355 -356 357 -358 -359 360
0.40/0.48	v  361 362 363 -364 -365 366 367 -368 369 -370
0.40/0.48	v  371 -372 373 374 375 376 -377 378 379 380
0.40/0.48	v  381 -382 -383 384 385 386 -387 -388 389 -390
0.40/0.48	v  -391 -392 -393 -394 -395 -396 -397 -398 -399 -400
0.40/0.48	v  401 -402 -403 -404 405 406 -407 -408 409 -410
0.40/0.48	v  -411 -412 413 -414 415 416 417 -418 419 420
0.40/0.48	v  421 -422 -423 -424 425 426 -427 -428 -429 430
0.40/0.48	v  431 432 433 434 435 436 437 -438 -439 -440
0.40/0.48	v  -441 442 -443 444 445 -446 447 448 449 -450
0.40/0.48	v  -451 452 -453 454 455 -456 -457 -458 459 460
0.40/0.48	v  -461 462 -463 464 -465 -466 -467 468 -469 -470
0.40/0.48	v  471 472 -473 -474 -475 476 477 478 -479 480
0.40/0.48	v  481 -482 483 484 -485 -486 487 -488 -489 -490
0.40/0.48	v  -491 492 -493 494 495 -496 -497 498 -499 -500
0.40/0.48	v  501 -502 -503 -504 -505 -506 507 508 509 -510
0.40/0.48	v  -511 -512 513 -514 -515 516 -517 -518 519 520
0.40/0.48	v  521 -522 523 -524 -525 526 -527 528 -529 -530
0.40/0.48	v  -531 -532 -533 -534 535 536 537 -538 539 540
0.40/0.48	v  -541 -542 -543 544 -545 546 547 548 549 550
0.40/0.48	v  551 552 553 -554 -555 556 557 558 559 -560
0.40/0.48	v  561 562 563 564 565 566 567 -568 -569 -570
0.40/0.48	v  571 -572 573 -574 -575 -576 -577 -578 -579 -580
0.40/0.48	v  -581 -582 583 584 -585 -586 -587 588 589 -590
0.40/0.48	v  -591 592 593 -594 595 596 597 598 -599 -600
0.40/0.48	v  601 -602 603 604 -605 606 607 608 -609 610
0.40/0.48	v  611 612 613 614 615 -616 -617 -618 619 -620
0.40/0.48	v  -621 -622 623 -624 -625 626 627 -628 629 -630
0.40/0.48	v  631 632 633 -634 635 636 -637 -638 -639 640
0.40/0.48	v  -641 642 -643 644 -645 646 -647 648 -649 -650
0.40/0.48	v  651 -652 653 654 -655 -656 -657 -658 -659 660
0.40/0.48	v  -661 -662 663 664 665 666 -667 668 -669 670
0.40/0.48	v  671 672 -673 -674 675 676 677 678 -679 -680
0.40/0.48	v  -681 682 683 -684 -685 -686 687 688 -689 -690
0.40/0.48	v  -691 -692 -693 -694 -695 696 697 698 699 -700
0.40/0.48	v  -701 -702 703 -704 705 706 707 708 709 -710
0.40/0.48	v  -711 -712 713 -714 -715 716 717 -718 719 -720
0.40/0.48	v  721 722 -723 -724 -725 726 727 -728 -729 -730
0.40/0.48	v  -731 -732 733 -734 735 736 -737 -738 -739 -740
0.40/0.48	v  -741 742 743 -744 -745 -746 747 -748 749 -750
0.40/0.48	v  -751 -752 753 754 -755 -756 757 758 759 -760
0.40/0.48	v  -761 -762 -763 -764 765 766 767 -768 769 -770
0.40/0.48	v  771 -772 773 -774 -775 776 777 778 -779 -780
0.40/0.48	v  -781 -782 -783 784 -785 -786 -787 788 -789 -790
0.40/0.48	v  -791 -792 -793 794 -795 -796 797 -798 -799 800
0.40/0.48	v  801 802 -803 -804 -805 806 807 -808 809 -810
0.40/0.48	v  811 812 -813 814 815 -816 -817 -818 -819 -820
0.40/0.48	v  -821 -822 823 -824 -825 -826 -827 828 829 -830
0.40/0.48	v  831 832 -833 834 835 836 837 838 839 840
0.40/0.48	v  -841 842 843 -844 -845 -846 -847 848 849 -850
0.40/0.48	v  -851 852 853 854 -855 -856 -857 858 859 -860
0.40/0.48	v  -861 -862 -863 -864 -865 -866 867 868 -869 -870
0.40/0.48	v  -871 872 -873 874 875 876 -877 -878 879 880
0.40/0.48	v  881 -882 -883 -884 885 886 -887 -888 889 -890
0.40/0.48	v  891 -892 -893 894 -895 896 -897 898 -899 -900
0.40/0.48	v  -901 -902 903 904 905 -906 907 908 909 910
0.40/0.48	v  911 -912 -913 914 915 -916 917 918 919 -920
0.40/0.48	v  921 -922 923 -924 -925 926 -927 -928 929 -930
0.40/0.48	v  931 932 933 -934 935 936 937 -938 939 940
0.40/0.48	v  941 -942 -943 944 945 -946 -947 -948 -949 -950
0.40/0.48	v  -951 952 -953 -954 955 -956 957 958 -959 -960
0.40/0.48	v  -961 -962 963 964 -965 966 -967 968 969 -970
0.40/0.48	v  -971 -972 973 -974 -975 976 977 -978 -979 -980
0.40/0.48	v  981 982 983 984 985 -986 -987 -988 989 990
0.40/0.48	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-371955-1177549118 -o ROOT/results/node50/solver-371955-1177549118 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/371955-1177549118/sapsrt /tmp/evaluation/371955-1177549118/instance-371955-1177549118.cnf 962311813 

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: 0.86 0.92 0.90 3/64 21396
/proc/meminfo: memFree=1605488/2055920 swapFree=4183596/4192956
[pid=21396] ppid=21394 vsize=5160 CPUtime=0
/proc/21396/stat : 21396 (sapsrt) R 21394 21396 20728 0 -1 4194304 156 0 0 0 0 0 0 0 18 0 1 0 109756934 5283840 142 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134799309 0 0 4096 0 0 0 0 17 1 0 0
/proc/21396/statm: 1290 142 78 159 0 1129 0

[startup+0.0529801 s]
/proc/loadavg: 0.86 0.92 0.90 3/64 21396
/proc/meminfo: memFree=1605488/2055920 swapFree=4183596/4192956
[pid=21396] ppid=21394 vsize=5156 CPUtime=0.05
/proc/21396/stat : 21396 (sapsrt) R 21394 21396 20728 0 -1 4194304 209 0 0 0 5 0 0 0 18 0 1 0 109756934 5279744 194 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134549641 0 0 4096 0 0 0 0 17 1 0 0
/proc/21396/statm: 1289 194 83 159 0 1128 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5156

[startup+0.101984 s]
/proc/loadavg: 0.86 0.92 0.90 3/64 21396
/proc/meminfo: memFree=1605488/2055920 swapFree=4183596/4192956
[pid=21396] ppid=21394 vsize=5156 CPUtime=0.1
/proc/21396/stat : 21396 (sapsrt) R 21394 21396 20728 0 -1 4194304 209 0 0 0 10 0 0 0 18 0 1 0 109756934 5279744 194 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134714545 0 0 4096 0 0 0 0 17 1 0 0
/proc/21396/statm: 1289 194 83 159 0 1128 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5156

[startup+0.302 s]
/proc/loadavg: 0.86 0.92 0.90 3/64 21396
/proc/meminfo: memFree=1605488/2055920 swapFree=4183596/4192956
[pid=21396] ppid=21394 vsize=5156 CPUtime=0.3
/proc/21396/stat : 21396 (sapsrt) R 21394 21396 20728 0 -1 4194304 209 0 0 0 30 0 0 0 19 0 1 0 109756934 5279744 194 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134550708 0 0 4096 0 0 0 0 17 1 0 0
/proc/21396/statm: 1289 194 83 159 0 1128 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 5156

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

[startup+0.402009 s]
/proc/loadavg: 0.86 0.92 0.90 3/64 21396
/proc/meminfo: memFree=1605488/2055920 swapFree=4183596/4192956
[pid=21396] ppid=21394 vsize=5156 CPUtime=0.4
/proc/21396/stat : 21396 (sapsrt) R 21394 21396 20728 0 -1 4194304 209 0 0 0 40 0 0 0 19 0 1 0 109756934 5279744 194 18446744073709551615 134512640 135167692 4294956656 18446744073709551615 134550221 0 0 4096 0 0 0 0 17 1 0 0
/proc/21396/statm: 1289 194 83 159 0 1128 0
Current children cumulated CPU time (s) 0.4
Current children cumulated vsize (KiB) 5156

Child status: 10
Real time (s): 0.483849
CPU time (s): 0.480926
CPU user time (s): 0.480926
CPU system time (s): 0
CPU usage (%): 99.3959
Max. virtual memory (cumulated for all children) (KiB): 5156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.480926
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= 9
involuntary context switches= 0

runsolver used 0.001999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node50 on Thu Apr 26 00:58:38 UTC 2007

IDJOB= 371955
IDBENCH= 20258
IDSOLVER= 187
FILE ID= node50/371955-1177549118

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-S218623752-19-SAT.cnf
COMMAND LINE= /tmp/evaluation/371955-1177549118/sapsrt /tmp/evaluation/371955-1177549118/instance-371955-1177549118.cnf  962311813       
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node50/watcher-371955-1177549118 -o ROOT/results/node50/solver-371955-1177549118 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/371955-1177549118/sapsrt /tmp/evaluation/371955-1177549118/instance-371955-1177549118.cnf  962311813       

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  202e2057dc8114964b5b3ec133b76d59

RANDOM SEED= 962311813

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:       1605896 kB
Buffers:         37396 kB
Cached:         338748 kB
SwapCached:       4384 kB
Active:         192976 kB
Inactive:       194920 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1605896 kB
SwapTotal:     4192956 kB
SwapFree:      4183596 kB
Dirty:            2216 kB
Writeback:           0 kB
Mapped:          16348 kB
Slab:            48084 kB
Committed_AS:  2975128 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 00:58:38 UTC 2007