Trace number 3426749

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 0.011998 0.0151061

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v650-c2769-S1495462442-016.SATISFIABLE.cnf
MD5SUMac64879f46539032a3d2139dc7635d2e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011998
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 

0.00/0.01	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 138868087
0.00/0.01	c try=1 flip j=10916 walk=9505 seed 138868104
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 -600 601 -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 
0.00/0.01	v 0 
0.00/0.01	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-3426749-1306769121/watcher-3426749-1306769121 -o /tmp/evaluation-result-3426749-1306769121/solver-3426749-1306769121 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426749-1306769121.cnf 138864630 

running on 4 cores: 0,2,4,6

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: 1.98 2.03 2.00 3/415 11524
/proc/meminfo: memFree=6563864/32950928 swapFree=53457208/67111528
[pid=11524] ppid=11522 vsize=1185848 CPUtime=0 cores=0,2,4,6
/proc/11524/stat : 11524 (sattime2011) R 11522 11524 10994 0 -1 4202496 408 0 0 0 0 0 0 0 25 0 1 0 244521513 1214308352 351 33554432000 4194304 4230460 140735441699392 18446744073709551615 4199952 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/11524/statm: 296462 351 117 9 0 293619 0

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

Child status: 10
Real time (s): 0.0151061
CPU time (s): 0.011998
CPU user time (s): 0.011998
CPU system time (s): 0
CPU usage (%): 79.425
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.011998
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= 412
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 0.007998 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node112 at 2011-05-30 17:25:21
IDJOB=3426749
IDBENCH=82721
IDSOLVER=1924
FILE ID=node112/3426749-1306769121
RUNJOBID= node112-1306761772-11012
PBS_JOBID= 13475012
Free space on /tmp= 58004 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v650-c2769-S1495462442-016.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426749-1306769121/watcher-3426749-1306769121 -o /tmp/evaluation-result-3426749-1306769121/solver-3426749-1306769121 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426749-1306769121.cnf 138864630

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

MD5SUM BENCH= ac64879f46539032a3d2139dc7635d2e
RANDOM SEED=138864630

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:       6564020 kB
Buffers:        297560 kB
Cached:       23239608 kB
SwapCached:      62268 kB
Active:       18808672 kB
Inactive:      6899064 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       6564020 kB
SwapTotal:    67111528 kB
SwapFree:     53457208 kB
Dirty:            7800 kB
Writeback:           0 kB
AnonPages:     2116432 kB
Mapped:          15976 kB
Slab:           552880 kB
PageTables:      59348 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 99824792 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 17:25:21