Trace number 3426814

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 0.025995 0.0266761

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v600-c2556-S373048162-052.SATISFIABLE.cnf
MD5SUM7a11fe5a7b45a740269507e820ccb021
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.004998
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 

0.00/0.02	c 0 clauses are redundant and removed
0.00/0.02	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.02	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.02	c initial seed is 1691765988
0.00/0.02	c try=1 flip j=44033 walk=38123 seed 1691766005
0.00/0.02	c A solution is found
0.00/0.02	s SATISFIABLE
0.00/0.02	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 
0.00/0.02	v 0 
0.00/0.02	c Done (mycputime is 0 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

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-3426814-1306773022/watcher-3426814-1306773022 -o /tmp/evaluation-result-3426814-1306773022/solver-3426814-1306773022 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426814-1306773022.cnf 1691762531 

running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5100 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.01 2.02 2.00 2/415 11695
/proc/meminfo: memFree=6568076/32950928 swapFree=53457208/67111528
[pid=11695] ppid=11693 vsize=1185848 CPUtime=0 cores=1,3,5,7
/proc/11695/stat : 11695 (sattime2011) R 11693 11695 10994 0 -1 4202496 390 0 0 0 0 0 0 0 25 0 1 0 244911605 1214308352 334 33554432000 4194304 4230460 140737402284224 18446744073709551615 4199918 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/11695/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): 0.0266761
CPU time (s): 0.025995
CPU user time (s): 0.024996
CPU system time (s): 0.000999
CPU usage (%): 97.4468
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.024996
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= 394
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 0.011998 second system time

The end

Launcher Data 

Begin job on node112 at 2011-05-30 18:30:22
IDJOB=3426814
IDBENCH=82786
IDSOLVER=1924
FILE ID=node112/3426814-1306773022
RUNJOBID= node112-1306761772-11013
PBS_JOBID= 13475012
Free space on /tmp= 58008 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v600-c2556-S373048162-052.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426814-1306773022/watcher-3426814-1306773022 -o /tmp/evaluation-result-3426814-1306773022/solver-3426814-1306773022 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426814-1306773022.cnf 1691762531

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 7a11fe5a7b45a740269507e820ccb021
RANDOM SEED=1691762531

node112.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		: 2666.847
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	: 5333.69
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		: 2666.847
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	: 5180.45
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		: 2666.847
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	: 5332.76
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		: 2666.847
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	: 5332.82
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		: 2666.847
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	: 5332.61
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		: 2666.847
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		: 2666.847
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	: 5332.74
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		: 2666.847
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:       6568356 kB
Buffers:        298732 kB
Cached:       23239268 kB
SwapCached:      62268 kB
Active:       18804516 kB
Inactive:      6899492 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       6568356 kB
SwapTotal:    67111528 kB
SwapFree:     53457208 kB
Dirty:            7800 kB
Writeback:           0 kB
AnonPages:     2112024 kB
Mapped:          15976 kB
Slab:           553096 kB
PageTables:      59668 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 99824292 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= 58000 MiB
End job on node112 at 2011-05-30 18:30:22