Trace number 3426931

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 0.033994 0.0343831

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v700-c2982-S171669125-021.SATISFIABLE.cnf
MD5SUM9649b9e4fa8d251c4c59f8783cbf0b60
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007997
Satisfiable
(Un)Satisfiability was proved
Number of variables700
Number of clauses2982
Sum of the clauses size8946
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32982
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.03	c 0 clauses are redundant and removed
0.00/0.03	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.03	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.03	c initial seed is 1690738975
0.00/0.03	c try=1 flip j=60227 walk=53316 seed 1690738992
0.00/0.03	c A solution is found
0.00/0.03	s SATISFIABLE
0.00/0.03	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 -648 649 650 651 652 653 654 -655 -656 657 -658 -659 660 -661 662 -663 -664 665 666 -667 -668 -669 -670 671 672 673 674 675 676 -677 -678 -679 680 -681 682 683 -684 685 686 687 688 -689 -690 -691 692 693 -694 -695 696 697 -698 -699 700 
0.00/0.03	v 0 
0.00/0.03	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-3426931-1306781770/watcher-3426931-1306781770 -o /tmp/evaluation-result-3426931-1306781770/solver-3426931-1306781770 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426931-1306781770.cnf 1690735518 

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: 2.02 2.03 2.00 3/472 3166
/proc/meminfo: memFree=4207040/32951124 swapFree=67057928/67111528
[pid=3166] ppid=3164 vsize=1185848 CPUtime=0 cores=0,2,4,6
/proc/3166/stat : 3166 (sattime2011) R 3164 3166 2108 0 -1 4202496 419 0 0 0 0 0 0 0 22 0 1 0 770592368 1214308352 363 33554432000 4194304 4230460 140735546178784 18446744073709551615 4218244 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/3166/statm: 296462 363 117 9 0 293619 0

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

Child status: 10
Real time (s): 0.0343831
CPU time (s): 0.033994
CPU user time (s): 0.033994
CPU system time (s): 0
CPU usage (%): 98.8684
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.033994
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= 423
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= 3
involuntary context switches= 1

runsolver used 0.003999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node140 at 2011-05-30 20:56:10
IDJOB=3426931
IDBENCH=82903
IDSOLVER=1924
FILE ID=node140/3426931-1306781770
RUNJOBID= node140-1306781770-3150
PBS_JOBID= 13474984
Free space on /tmp= 57344 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v700-c2982-S171669125-021.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426931-1306781770/watcher-3426931-1306781770 -o /tmp/evaluation-result-3426931-1306781770/solver-3426931-1306781770 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426931-1306781770.cnf 1690735518

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

MD5SUM BENCH= 9649b9e4fa8d251c4c59f8783cbf0b60
RANDOM SEED=1690735518

node140.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		: 2666.833
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	: 5333.66
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		: 2666.833
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	: 5226.14
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		: 2666.833
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		: 2666.833
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	: 5332.77
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		: 2666.833
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		: 2666.833
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	: 5332.74
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		: 2666.833
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		: 2666.833
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:     32951124 kB
MemFree:       4207196 kB
Buffers:        201348 kB
Cached:       20909040 kB
SwapCached:       6932 kB
Active:       17845460 kB
Inactive:     10179324 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       4207196 kB
SwapTotal:    67111528 kB
SwapFree:     67057928 kB
Dirty:           15568 kB
Writeback:          12 kB
AnonPages:     6912468 kB
Mapped:          37628 kB
Slab:           598444 kB
PageTables:      52132 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 141379364 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= 57328 MiB
End job on node140 at 2011-05-30 20:56:11