Trace number 3169460

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
shortsattime+ 2011-03-02SAT 0.78288 0.785215

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v700-c2982-S1744841484-003.SATISFIABLE.cnf
MD5SUMdfb1a270a60c2005459af6275114712d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014996
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 

0.69/0.78	c 0 clauses are redundant and removed
0.69/0.78	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.69/0.78	c 0 vars are fixed and 0 clauses are removed after lookahead
0.69/0.78	c initial seed is 2125028633
0.69/0.78	c try=1 flip j=1831735 walk=1638621 seed 2125028650
0.69/0.78	c A solution is found
0.69/0.78	s SATISFIABLE
0.69/0.78	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 
0.69/0.78	v 0 
0.69/0.78	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-3169460-1301709556/watcher-3169460-1301709556 -o /tmp/evaluation-result-3169460-1301709556/solver-3169460-1301709556 -C 2400 -W 1300 -M 7680 shortsattime+ HOME/instance-3169460-1301709556.cnf 2125028406 

running on 2 cores: 5,7

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: 4.00 4.05 4.91 5/189 11521
/proc/meminfo: memFree=21526400/32951124 swapFree=67111528/67111528
[pid=11521] ppid=11519 vsize=881028 CPUtime=0 cores=5,7
/proc/11521/stat : 11521 (shortsattime+) R 11519 11521 11070 0 -1 4202496 330 0 0 0 0 0 0 0 25 0 1 0 263371723 902172672 270 33554432000 4194304 4228340 140733645057520 18446744073709551615 255106429637 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/11521/statm: 220257 272 116 9 0 217414 0

[startup+0.092752 s]
/proc/loadavg: 4.00 4.05 4.91 5/189 11521
/proc/meminfo: memFree=21526400/32951124 swapFree=67111528/67111528
[pid=11521] ppid=11519 vsize=881160 CPUtime=0.09 cores=5,7
/proc/11521/stat : 11521 (shortsattime+) R 11519 11521 11070 0 -1 4202496 377 0 0 0 9 0 0 0 25 0 1 0 263371723 902307840 317 33554432000 4194304 4228340 140733645057520 18446744073709551615 4218896 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/11521/statm: 220290 317 116 9 0 217447 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 881160

[startup+0.100752 s]
/proc/loadavg: 4.00 4.05 4.91 5/189 11521
/proc/meminfo: memFree=21526400/32951124 swapFree=67111528/67111528
[pid=11521] ppid=11519 vsize=881160 CPUtime=0.09 cores=5,7
/proc/11521/stat : 11521 (shortsattime+) R 11519 11521 11070 0 -1 4202496 377 0 0 0 9 0 0 0 25 0 1 0 263371723 902307840 317 33554432000 4194304 4228340 140733645057520 18446744073709551615 4217157 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/11521/statm: 220290 317 116 9 0 217447 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 881160

[startup+0.300717 s]
/proc/loadavg: 4.00 4.05 4.91 5/189 11521
/proc/meminfo: memFree=21526400/32951124 swapFree=67111528/67111528
[pid=11521] ppid=11519 vsize=881160 CPUtime=0.29 cores=5,7
/proc/11521/stat : 11521 (shortsattime+) R 11519 11521 11070 0 -1 4202496 377 0 0 0 29 0 0 0 25 0 1 0 263371723 902307840 317 33554432000 4194304 4228340 140733645057520 18446744073709551615 4218874 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/11521/statm: 220290 317 116 9 0 217447 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 881160

[startup+0.700646 s]
/proc/loadavg: 4.00 4.05 4.91 5/189 11521
/proc/meminfo: memFree=21526400/32951124 swapFree=67111528/67111528
[pid=11521] ppid=11519 vsize=881160 CPUtime=0.69 cores=5,7
/proc/11521/stat : 11521 (shortsattime+) R 11519 11521 11070 0 -1 4202496 377 0 0 0 69 0 0 0 25 0 1 0 263371723 902307840 317 33554432000 4194304 4228340 140733645057520 18446744073709551615 4218666 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/11521/statm: 220290 317 116 9 0 217447 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 881160

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

Child status: 10
Real time (s): 0.785215
CPU time (s): 0.78288
CPU user time (s): 0.78288
CPU system time (s): 0
CPU usage (%): 99.7026
Max. virtual memory (cumulated for all children) (KiB): 881160

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.78288
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= 381
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 node144 at 2011-04-02 03:59:16
IDJOB=3169460
IDBENCH=83078
IDSOLVER=1578
FILE ID=node144/3169460-1301709556
RUNJOBID= node144-1301708233-11091
PBS_JOBID= 12840837
Free space on /tmp= 71120 MiB

SOLVER NAME= shortsattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v700-c2982-S1744841484-003.SATISFIABLE.cnf
COMMAND LINE= shortsattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3169460-1301709556/watcher-3169460-1301709556 -o /tmp/evaluation-result-3169460-1301709556/solver-3169460-1301709556 -C 2400 -W 1300 -M 7680  shortsattime+ HOME/instance-3169460-1301709556.cnf 2125028406

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

MD5SUM BENCH= dfb1a270a60c2005459af6275114712d
RANDOM SEED=2125028406

node144.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		: 2666.850
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	: 5333.70
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		: 2666.850
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	: 5226.16
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		: 2666.850
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		: 2666.850
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	: 5332.83
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		: 2666.850
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		: 2666.850
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		: 2666.850
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		: 2666.850
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	: 5332.76
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      21526680 kB
Buffers:        346328 kB
Cached:       10734732 kB
SwapCached:          0 kB
Active:        8170404 kB
Inactive:      2978408 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21526680 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           32064 kB
Writeback:           0 kB
AnonPages:       68056 kB
Mapped:          15328 kB
Slab:           213020 kB
PageTables:       5824 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  2880968 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= 71112 MiB
End job on node144 at 2011-04-02 03:59:17