Trace number 1807383

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
minisat2-simp 070721SAT 0.283956 0.284676

General information on the benchmark

NameCRAFTED/sgi/
sgi-difficult7.cnf
MD5SUM99db6397e91b77ca5e6f5d44dc60b594
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.013997
Satisfiable
(Un)Satisfiability was proved
Number of variables728
Number of clauses28986
Sum of the clauses size58648
Maximum clause length28
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 228960
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 526

Solver Data 

0.00/0.00	This is MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  728                                                  |
0.00/0.00	|  Number of clauses:    28986                                                |
0.00/0.02	|  Parsing time:         0.02         s                                       |
0.19/0.28	============================[ Search Statistics ]==============================
0.19/0.28	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.19/0.28	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.19/0.28	===============================================================================
0.19/0.28	|         0 |     702    28258    78960 |     9419        0    nan |  0.000 % |
0.19/0.28	===============================================================================
0.19/0.28	restarts              : 1
0.19/0.28	conflicts             : 0              (0 /sec)
0.19/0.28	decisions             : 275            (0.73 % random) (986 /sec)
0.19/0.28	propagations          : 702            (2517 /sec)
0.19/0.28	conflict literals     : 0              ( nan % deleted)
0.19/0.28	Memory used           : 3.70 MB
0.19/0.28	CPU time              : 0.278957 s
0.19/0.28	
0.19/0.28	s SATISFIABLE
0.19/0.28	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 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1807383-1242157597/watcher-1807383-1242157597 -o /tmp/evaluation-result-1807383-1242157597/solver-1807383-1242157597 -C 1200 -W 1800 -M 1800 minisat_static HOME/instance-1807383-1242157597.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.97 0.99 3/64 16903
/proc/meminfo: memFree=1044592/2055920 swapFree=4121024/4192956
[pid=16903] ppid=16901 vsize=2200 CPUtime=0
/proc/16903/stat : 16903 (minisat_static) R 16901 16903 16661 0 -1 4194304 264 0 0 0 0 0 0 0 18 0 1 0 243792888 2252800 249 1992294400 134512640 135243866 4294956256 18446744073709551615 134515816 0 0 4096 3 0 0 0 17 1 0 0
/proc/16903/statm: 550 251 65 178 0 370 0

[startup+0.087938 s]
/proc/loadavg: 0.92 0.97 0.99 3/64 16903
/proc/meminfo: memFree=1044592/2055920 swapFree=4121024/4192956
[pid=16903] ppid=16901 vsize=3944 CPUtime=0.08
/proc/16903/stat : 16903 (minisat_static) R 16901 16903 16661 0 -1 4194304 690 0 0 0 8 0 0 0 18 0 1 0 243792888 4038656 675 1992294400 134512640 135243866 4294956256 18446744073709551615 134541953 0 0 4096 3 0 0 0 17 1 0 0
/proc/16903/statm: 986 675 81 178 0 806 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3944

[startup+0.101939 s]
/proc/loadavg: 0.92 0.97 0.99 3/64 16903
/proc/meminfo: memFree=1044592/2055920 swapFree=4121024/4192956
[pid=16903] ppid=16901 vsize=4024 CPUtime=0.09
/proc/16903/stat : 16903 (minisat_static) R 16901 16903 16661 0 -1 4194304 718 0 0 0 9 0 0 0 18 0 1 0 243792888 4120576 703 1992294400 134512640 135243866 4294956256 18446744073709551615 134535838 0 0 4096 3 0 0 0 17 1 0 0
/proc/16903/statm: 1006 703 81 178 0 826 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4024

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

[startup+0.201951 s]
/proc/loadavg: 0.92 0.97 0.99 3/64 16903
/proc/meminfo: memFree=1044592/2055920 swapFree=4121024/4192956
[pid=16903] ppid=16901 vsize=4024 CPUtime=0.19
/proc/16903/stat : 16903 (minisat_static) R 16901 16903 16661 0 -1 4194304 719 0 0 0 19 0 0 0 18 0 1 0 243792888 4120576 704 1992294400 134512640 135243866 4294956256 18446744073709551615 134535728 0 0 4096 3 0 0 0 17 1 0 0
/proc/16903/statm: 1006 704 81 178 0 826 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 4024

Child status: 10
Real time (s): 0.284676
CPU time (s): 0.283956
CPU user time (s): 0.278957
CPU system time (s): 0.004999
CPU usage (%): 99.747
Max. virtual memory (cumulated for all children) (KiB): 4024

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.278957
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 734
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= 2
involuntary context switches= 2

runsolver used 0.003999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node20 at 2009-05-12 21:46:37
IDJOB=1807383
IDBENCH=71619
IDSOLVER=568
FILE ID=node20/1807383-1242157597
PBS_JOBID= 9289759
Free space on /tmp= 66288 MiB

SOLVER NAME= minisat2-simp 070721
BENCH NAME= SAT09/CRAFTED/sgi/sgi-difficult7.cnf
COMMAND LINE= minisat_static BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1807383-1242157597/watcher-1807383-1242157597 -o /tmp/evaluation-result-1807383-1242157597/solver-1807383-1242157597 -C 1200 -W 1800 -M 1800  minisat_static HOME/instance-1807383-1242157597.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 99db6397e91b77ca5e6f5d44dc60b594
RANDOM SEED=520620941

node20.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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:       1045008 kB
Buffers:         86144 kB
Cached:         769020 kB
SwapCached:      66304 kB
Active:         302524 kB
Inactive:       620564 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1045008 kB
SwapTotal:     4192956 kB
SwapFree:      4121024 kB
Dirty:            1360 kB
Writeback:           0 kB
Mapped:          13460 kB
Slab:            73844 kB
Committed_AS:  1001332 kB
PageTables:       1396 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= 66284 MiB
End job on node20 at 2009-05-12 21:46:37