Trace number 1736225

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
VARSAT-crafted 2009-03-22SAT 0.344947 0.345952

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	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  728                                                  |
0.00/0.00	c |  Number of clauses:    28986                                                |
0.00/0.02	c |  Parsing time:         0.02         s                                       |
0.00/0.02	c |  Timeout:              43200 s
0.00/0.02	c |  Random Seed:          1964361573.000000
0.00/0.02	c |  Heuristic:            EMBP-G, threshold 0.800                              |
0.00/0.02	c |  Branching Rule:       default (solution-guided)                            |
0.00/0.02	c |  Learned clauses in surveys?  Using NO learned clauses.                     |
0.00/0.02	c |                                                                             |
0.19/0.30	c ============================[ Search Statistics ]==============================
0.19/0.30	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.19/0.30	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.19/0.30	c ===============================================================================
0.19/0.30	c |         0 |     702    28258    78960 |     9419        0    nan |  0.000 % |
0.29/0.34	c ===============================================================================
0.29/0.34	c surveys--CPU time (sec)   : 0.0420         (12.43 % of total)
0.29/0.34	c surveys--attempted        : 1              (24 /sec)
0.29/0.34	c surveys--converged        : 1              (100.00 % successful)
0.29/0.34	c restarts              : 1
0.29/0.34	c conflicts             : 0              (0 /sec)
0.29/0.34	c decisions             : 277            (0.72 % random) (936 /sec)
0.29/0.34	c propagations          : 702            (2372 /sec)
0.29/0.34	c conflict literals     : 0              ( nan % deleted)
0.29/0.34	c Memory used           : 5.65 MB
0.29/0.34	c Total CPU time (sec)      : 0.3379      
0.29/0.34	c 
0.29/0.34	s SATISFIABLE
0.29/0.34	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-1736225-1240810607/watcher-1736225-1240810607 -o /tmp/evaluation-result-1736225-1240810607/solver-1736225-1240810607 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/varsat-crafted_static -seed=1964361573 HOME/instance-1736225-1240810607.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
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: 1.27 1.05 1.01 3/64 6719
/proc/meminfo: memFree=1543696/2055920 swapFree=4181900/4192956
[pid=6719] ppid=6717 vsize=2692 CPUtime=0
/proc/6719/stat : 6719 (varsat-crafted_) R 6717 6719 4996 0 -1 4194304 346 0 0 0 0 0 0 0 18 0 1 0 109088765 2756608 331 1992294400 4194304 5102648 548682068768 18446744073709551615 4491719 0 0 4096 3 0 0 0 17 1 0 0
/proc/6719/statm: 673 332 87 221 0 449 0

[startup+0.0547411 s]
/proc/loadavg: 1.27 1.05 1.01 3/64 6719
/proc/meminfo: memFree=1543696/2055920 swapFree=4181900/4192956
[pid=6719] ppid=6717 vsize=5804 CPUtime=0.04
/proc/6719/stat : 6719 (varsat-crafted_) R 6717 6719 4996 0 -1 4194304 1078 0 0 0 4 0 0 0 18 0 1 0 109088765 5943296 1063 1992294400 4194304 5102648 548682068768 18446744073709551615 4272886 0 0 4096 3 0 0 0 17 1 0 0
/proc/6719/statm: 1451 1063 98 221 0 1227 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 5804

[startup+0.101749 s]
/proc/loadavg: 1.27 1.05 1.01 3/64 6719
/proc/meminfo: memFree=1543696/2055920 swapFree=4181900/4192956
[pid=6719] ppid=6717 vsize=6332 CPUtime=0.09
/proc/6719/stat : 6719 (varsat-crafted_) R 6717 6719 4996 0 -1 4194304 1244 0 0 0 9 0 0 0 18 0 1 0 109088765 6483968 1229 1992294400 4194304 5102648 548682068768 18446744073709551615 4283505 0 0 4096 3 0 0 0 17 1 0 0
/proc/6719/statm: 1583 1229 100 221 0 1359 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6332

[startup+0.301784 s]
/proc/loadavg: 1.27 1.05 1.01 3/64 6719
/proc/meminfo: memFree=1543696/2055920 swapFree=4181900/4192956
[pid=6719] ppid=6717 vsize=5784 CPUtime=0.29
/proc/6719/stat : 6719 (varsat-crafted_) R 6717 6719 4996 0 -1 4194304 1305 0 0 0 29 0 0 0 19 0 1 0 109088765 5922816 1117 1992294400 4194304 5102648 548682068768 18446744073709551615 4242249 0 0 4096 3 0 0 0 17 1 0 0
/proc/6719/statm: 1446 1117 102 221 0 1222 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5784

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

Child status: 10
Real time (s): 0.345952
CPU time (s): 0.344947
CPU user time (s): 0.338948
CPU system time (s): 0.005999
CPU usage (%): 99.7095
Max. virtual memory (cumulated for all children) (KiB): 6492

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.338948
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1310
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= 0

runsolver used 0.004999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node44 at 2009-04-27 07:36:48
IDJOB=1736225
IDBENCH=71619
IDSOLVER=537
FILE ID=node44/1736225-1240810607
PBS_JOBID= 9187434
Free space on /tmp= 66216 MiB

SOLVER NAME= VARSAT-crafted 2009-03-22
BENCH NAME= SAT09/CRAFTED/sgi/sgi-difficult7.cnf
COMMAND LINE= HOME/varsat-crafted_static -seed=RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1736225-1240810607/watcher-1736225-1240810607 -o /tmp/evaluation-result-1736225-1240810607/solver-1736225-1240810607 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/varsat-crafted_static -seed=1964361573 HOME/instance-1736225-1240810607.cnf

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

MD5SUM BENCH= 99db6397e91b77ca5e6f5d44dc60b594
RANDOM SEED=1964361573

node44.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		: 3000.267
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		: 3000.267
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:       1544112 kB
Buffers:         55148 kB
Cached:         370064 kB
SwapCached:       4956 kB
Active:         165748 kB
Inactive:       267908 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1544112 kB
SwapTotal:     4192956 kB
SwapFree:      4181900 kB
Dirty:            2576 kB
Writeback:           0 kB
Mapped:          14556 kB
Slab:            64060 kB
Committed_AS:   492544 kB
PageTables:       1380 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= 66216 MiB
End job on node44 at 2009-04-27 07:36:48