Trace number 3153888

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
sattime2011 2011-03-02SAT 0.012998 0.0135381

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v600-c2556-S735137557-045.SATISFIABLE.cnf
MD5SUMdb052c7898d14b578cec80f7488daf9a
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.003999
Satisfiable
(Un)Satisfiability was proved
Number of variables600
Number of clauses2556
Sum of the clauses size7668
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32556
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c 0 clauses are redundant and removed
0.00/0.01	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.01	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.01	c initial seed is 1309767927
0.00/0.01	c try=1 flip j=15968 walk=13979 seed 1309767944
0.00/0.01	c A solution is found
0.00/0.01	s SATISFIABLE
0.00/0.01	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 
0.00/0.01	v 0 
0.00/0.01	c Done (mycputime is 0 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3153888-1301683557/watcher-3153888-1301683557 -o /tmp/evaluation-result-3153888-1301683557/solver-3153888-1301683557 -C 2400 -W 1300 -M 7680 sattime2011 HOME/instance-3153888-1301683557.cnf 1309764470 

running on 2 cores: 4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 3.84 3.97 3.92 4/189 6371
/proc/meminfo: memFree=18645160/32950928 swapFree=67111528/67111528
[pid=6371] ppid=6369 vsize=1185848 CPUtime=0 cores=4,6
/proc/6371/stat : 6371 (sattime2011) R 6369 6371 5139 0 -1 4202496 393 0 0 0 0 0 0 0 25 0 1 0 358586420 1214308352 334 33554432000 4194304 4230460 140736074508304 18446744073709551615 4219807 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/6371/statm: 296462 334 117 9 0 293619 0

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

Child status: 10
Real time (s): 0.0135381
CPU time (s): 0.012998
CPU user time (s): 0.012998
CPU system time (s): 0
CPU usage (%): 96.0106
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.012998
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= 397
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 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node116 at 2011-04-01 20:45:57
IDJOB=3153888
IDBENCH=82995
IDSOLVER=1563
FILE ID=node116/3153888-1301683557
RUNJOBID= node116-1301678139-5158
PBS_JOBID= 12840581
Free space on /tmp= 70716 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v600-c2556-S735137557-045.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3153888-1301683557/watcher-3153888-1301683557 -o /tmp/evaluation-result-3153888-1301683557/solver-3153888-1301683557 -C 2400 -W 1300 -M 7680  sattime2011 HOME/instance-3153888-1301683557.cnf 1309764470

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= db052c7898d14b578cec80f7488daf9a
RANDOM SEED=1309764470

node116.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.826
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.65
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.826
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5226.15
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.826
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.826
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.826
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.77
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.826
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.826
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.826
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      18645316 kB
Buffers:        380004 kB
Cached:       13547792 kB
SwapCached:          0 kB
Active:        9300740 kB
Inactive:      4697452 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      18645316 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           16204 kB
Writeback:           0 kB
AnonPages:       70156 kB
Mapped:          15520 kB
Slab:           243876 kB
PageTables:       6020 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  3799448 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 70708 MiB
End job on node116 at 2011-04-01 20:45:58