Trace number 3153863

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 0.020995 0.0222469

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v650-c2769-S30721646-064.SATISFIABLE.cnf
MD5SUM594a31b95a871970fa7797f18ebcd756
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 variables650
Number of clauses2769
Sum of the clauses size8307
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32769
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 1153764485
0.00/0.02	c try=1 flip j=31152 walk=27189 seed 1153764502
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 -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 
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 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-3153863-1301683425/watcher-3153863-1301683425 -o /tmp/evaluation-result-3153863-1301683425/solver-3153863-1301683425 -C 2400 -W 1300 -M 7680 sattime2011 HOME/instance-3153863-1301683425.cnf 1153761028 

running on 2 cores: 0,2

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: 4.03 4.01 3.93 5/189 5988
/proc/meminfo: memFree=18646596/32950928 swapFree=67111528/67111528
[pid=5988] ppid=5986 vsize=1185848 CPUtime=0 cores=0,2
/proc/5988/stat : 5988 (sattime2011) R 5986 5988 5139 0 -1 4202496 408 0 0 0 0 0 0 0 25 0 1 0 358573194 1214308352 349 33554432000 4194304 4230460 140733540704336 18446744073709551615 4223068 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/5988/statm: 296462 349 117 9 0 293619 0

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

Child status: 10
Real time (s): 0.0222469
CPU time (s): 0.020995
CPU user time (s): 0.019996
CPU system time (s): 0.000999
CPU usage (%): 94.3725
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.019996
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= 415
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 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node116 at 2011-04-01 20:43:45
IDJOB=3153863
IDBENCH=82970
IDSOLVER=1563
FILE ID=node116/3153863-1301683425
RUNJOBID= node116-1301678139-5157
PBS_JOBID= 12840581
Free space on /tmp= 70716 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v650-c2769-S30721646-064.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3153863-1301683425/watcher-3153863-1301683425 -o /tmp/evaluation-result-3153863-1301683425/solver-3153863-1301683425 -C 2400 -W 1300 -M 7680  sattime2011 HOME/instance-3153863-1301683425.cnf 1153761028

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

MD5SUM BENCH= 594a31b95a871970fa7797f18ebcd756
RANDOM SEED=1153761028

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:      18647000 kB
Buffers:        379684 kB
Cached:       13547108 kB
SwapCached:          0 kB
Active:        9299632 kB
Inactive:      4697036 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      18647000 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7796 kB
Writeback:           0 kB
AnonPages:       70128 kB
Mapped:          15524 kB
Slab:           243540 kB
PageTables:       5712 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  3799704 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 20:43:45