Trace number 3169920

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
sattime+ 2011-03-02SAT 0.049991 0.0496449

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v600-c2556-S727005963-093.SATISFIABLE.cnf
MD5SUM91e4bda9499071fffccca1352d82691f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.017996
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 

0.00/0.04	c 0 clauses are redundant and removed
0.00/0.04	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.04	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.04	c initial seed is 1401854567
0.00/0.04	c try=1 flip j=110689 walk=98075 seed 1401854584
0.00/0.04	c A solution is found
0.00/0.04	s SATISFIABLE
0.00/0.04	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 
0.00/0.04	v 0 
0.00/0.04	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-3169920-1301695929/watcher-3169920-1301695929 -o /tmp/evaluation-result-3169920-1301695929/solver-3169920-1301695929 -C 2400 -W 1300 -M 7680 sattime+ HOME/instance-3169920-1301695929.cnf 1401854454 

running on 2 cores: 1,3

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: 3.95 3.98 3.91 4/189 11636
/proc/meminfo: memFree=20195712/32951124 swapFree=67111528/67111528
[pid=11636] ppid=11634 vsize=881028 CPUtime=0 cores=1,3
/proc/11636/stat : 11636 (sattime+) R 11634 11636 10661 0 -1 4202496 353 0 0 0 0 0 0 0 25 0 1 0 281191416 902172672 293 33554432000 4194304 4228340 140733935893984 18446744073709551615 4219053 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/11636/statm: 220257 293 116 9 0 217414 0

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

Child status: 10
Real time (s): 0.0496449
CPU time (s): 0.049991
CPU user time (s): 0.048992
CPU system time (s): 0.000999
CPU usage (%): 100.697
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.048992
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 357
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 0.003999 second system time

The end

Launcher Data 

Begin job on node130 at 2011-04-02 00:12:09
IDJOB=3169920
IDBENCH=82938
IDSOLVER=1579
FILE ID=node130/3169920-1301695929
RUNJOBID= node130-1301690421-10681
PBS_JOBID= 12840706
Free space on /tmp= 71232 MiB

SOLVER NAME= sattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v600-c2556-S727005963-093.SATISFIABLE.cnf
COMMAND LINE= sattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3169920-1301695929/watcher-3169920-1301695929 -o /tmp/evaluation-result-3169920-1301695929/solver-3169920-1301695929 -C 2400 -W 1300 -M 7680  sattime+ HOME/instance-3169920-1301695929.cnf 1401854454

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

MD5SUM BENCH= 91e4bda9499071fffccca1352d82691f
RANDOM SEED=1401854454

node130.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		: 2666.838
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	: 5333.67
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		: 2666.838
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	: 5332.83
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		: 2666.838
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		: 2666.838
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	: 5332.81
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		: 2666.838
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	: 5332.75
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		: 2666.838
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	: 5332.83
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		: 2666.838
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		: 2666.838
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	: 5332.81
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      20195992 kB
Buffers:        347976 kB
Cached:       12063772 kB
SwapCached:          0 kB
Active:        7849516 kB
Inactive:      4631128 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20195992 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            8180 kB
Writeback:           0 kB
AnonPages:       69144 kB
Mapped:          15552 kB
Slab:           210588 kB
PageTables:       5416 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  2885840 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= 71224 MiB
End job on node130 at 2011-04-02 00:12:09