Trace number 1734295

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
MXC 2009-03-10SAT 0.085986 0.086267

General information on the benchmark

NameCRAFTED/sgi/
satsgi-n23himBHm26-p0-q248.cnf
MD5SUM289acac85257a9b2194bbfd3d1b0ff54
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007998
Satisfiable
(Un)Satisfiability was proved
Number of variables598
Number of clauses14076
Sum of the clauses size28704
Maximum clause length26
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 214053
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 523

Solver Data 

0.02/0.08	c starting MXC with:
0.02/0.08	c cnf_path = HOME/instance-1734295-1240795686.cnf
0.02/0.08	c restart_strategy = auto
0.02/0.08	c sign_strategy = cached
0.02/0.08	c use_preprocessing = -1
0.02/0.08	c output_implicant = 1
0.02/0.08	c timeout_seconds = 0
0.02/0.08	c running SatELite... done
0.02/0.08	c 24 vars eliminated
0.02/0.08	c received 0 units and 13478 clauses from SatELite
0.02/0.08	c 23 assignments made, starting to guess now
0.02/0.08	c ===================================[MXC]=====================================
0.02/0.08	c | Conflicts |                Clause Statistics                   |   Vars   |
0.02/0.08	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
0.02/0.08	c =============================================================================
0.02/0.08	c |         0 |       0   13182      296        0        0     nan |      598 |
0.02/0.08	c |         0 |       0   13182      296        0        0     nan |      575 |
0.02/0.08	c ----- stats for thread 0 -----
0.02/0.08	c restarts: 0
0.02/0.08	c decisions: 323
0.02/0.08	c propagations: 599
0.02/0.08	c conflicts: 0
0.02/0.08	c 0.085s elapsed
0.02/0.08	s SATISFIABLE
0.02/0.08	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 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-1734295-1240795686/watcher-1734295-1240795686 -o /tmp/evaluation-result-1734295-1240795686/solver-1734295-1240795686 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1734295-1240795686.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: 1.17 1.66 1.47 3/65 28251
/proc/meminfo: memFree=1462056/2055920 swapFree=4192192/4192956
[pid=28251] ppid=28249 vsize=1408 CPUtime=0
/proc/28251/stat : 28251 (mxc-sat09) R 28249 28251 25936 0 -1 4194304 238 0 0 0 0 0 0 0 18 0 1 0 107598699 1441792 224 1992294400 134512640 135192793 4294956208 18446744073709551615 134748321 0 0 4096 0 0 0 0 17 0 0 0
/proc/28251/statm: 352 224 54 166 0 183 0

[startup+0.0309409 s]
/proc/loadavg: 1.17 1.66 1.47 3/65 28251
/proc/meminfo: memFree=1462056/2055920 swapFree=4192192/4192956
[pid=28251] ppid=28249 vsize=1932 CPUtime=0.02
/proc/28251/stat : 28251 (mxc-sat09) R 28249 28251 25936 0 -1 4194304 404 0 0 0 2 0 0 0 18 0 1 0 107598699 1978368 349 1992294400 134512640 135192793 4294956208 18446744073709551615 134573778 0 0 4096 0 0 0 0 17 0 0 0
/proc/28251/statm: 483 349 56 166 0 314 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1932

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

[startup+0.0309409 s]
/proc/loadavg: 1.17 1.66 1.47 3/65 28251
/proc/meminfo: memFree=1462056/2055920 swapFree=4192192/4192956
[pid=28251] ppid=28249 vsize=1932 CPUtime=0.02
/proc/28251/stat : 28251 (mxc-sat09) R 28249 28251 25936 0 -1 4194304 404 0 0 0 2 0 0 0 18 0 1 0 107598699 1978368 349 1992294400 134512640 135192793 4294956208 18446744073709551615 134573778 0 0 4096 0 0 0 0 17 0 0 0
/proc/28251/statm: 483 349 56 166 0 314 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1932

Child status: 10
Real time (s): 0.086267
CPU time (s): 0.085986
CPU user time (s): 0.083987
CPU system time (s): 0.001999
CPU usage (%): 99.6742
Max. virtual memory (cumulated for all children) (KiB): 1932

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.083987
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= 454
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= 1

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node76 at 2009-04-27 03:28:06
IDJOB=1734295
IDBENCH=71207
IDSOLVER=504
FILE ID=node76/1734295-1240795686
PBS_JOBID= 9187344
Free space on /tmp= 66204 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT09/CRAFTED/sgi/satsgi-n23himBHm26-p0-q248.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1734295-1240795686/watcher-1734295-1240795686 -o /tmp/evaluation-result-1734295-1240795686/solver-1734295-1240795686 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1734295-1240795686.cnf

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

MD5SUM BENCH= 289acac85257a9b2194bbfd3d1b0ff54
RANDOM SEED=298745656

node76.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		: 3000.220
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		: 3000.220
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1462472 kB
Buffers:         70512 kB
Cached:         448524 kB
SwapCached:        620 kB
Active:         237888 kB
Inactive:       294924 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1462472 kB
SwapTotal:     4192956 kB
SwapFree:      4192192 kB
Dirty:            1476 kB
Writeback:         116 kB
Mapped:          22340 kB
Slab:            46580 kB
Committed_AS:   433392 kB
PageTables:       1432 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= 66204 MiB
End job on node76 at 2009-04-27 03:28:06