Trace number 3153796

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 0.015996 0.0156779

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 benchmark0.008998
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 

0.00/0.01	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 772680580
0.00/0.01	c try=1 flip j=17903 walk=15829 seed 772680597
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 -649 650 651 652 653 -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 
0.00/0.01	v 0 
0.00/0.01	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-3153796-1301682953/watcher-3153796-1301682953 -o /tmp/evaluation-result-3153796-1301682953/solver-3153796-1301682953 -C 2400 -W 1300 -M 7680 sattime2011 HOME/instance-3153796-1301682953.cnf 772677123 

running on 2 cores: 4,6

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: 3.94 4.00 3.94 4/189 31066
/proc/meminfo: memFree=18605676/32950928 swapFree=67111528/67111528
[pid=31066] ppid=31064 vsize=1185848 CPUtime=0 cores=4,6
/proc/31066/stat : 31066 (sattime2011) R 31064 31066 30314 0 -1 4202496 424 0 0 0 0 0 0 0 25 0 1 0 358525934 1214308352 364 33554432000 4194304 4230460 140734857330704 18446744073709551615 4218358 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/31066/statm: 296462 364 117 9 0 293619 0

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

Child status: 10
Real time (s): 0.0156779
CPU time (s): 0.015996
CPU user time (s): 0.014997
CPU system time (s): 0.000999
CPU usage (%): 102.029
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.014997
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= 428
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 0.002999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node112 at 2011-04-01 20:35:53
IDJOB=3153796
IDBENCH=82903
IDSOLVER=1563
FILE ID=node112/3153796-1301682953
RUNJOBID= node112-1301678139-30333
PBS_JOBID= 12840585
Free space on /tmp= 71548 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-3153796-1301682953/watcher-3153796-1301682953 -o /tmp/evaluation-result-3153796-1301682953/solver-3153796-1301682953 -C 2400 -W 1300 -M 7680  sattime2011 HOME/instance-3153796-1301682953.cnf 772677123

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

MD5SUM BENCH= 9649b9e4fa8d251c4c59f8783cbf0b60
RANDOM SEED=772677123

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		: 2666.828
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		: 2666.828
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		: 2666.828
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	: 5332.67
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		: 2666.828
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		: 2666.828
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	: 5261.27
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		: 2666.828
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	: 5332.82
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		: 2666.828
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		: 2666.828
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	: 5332.93
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      18605708 kB
Buffers:        379080 kB
Cached:       13605440 kB
SwapCached:          0 kB
Active:        8258380 kB
Inactive:      5798584 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      18605708 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            8032 kB
Writeback:           0 kB
AnonPages:       72620 kB
Mapped:          15348 kB
Slab:           224004 kB
PageTables:       5420 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  3796672 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= 71540 MiB
End job on node112 at 2011-04-01 20:35:53