Trace number 3426772

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 0.303952 0.30471

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v750-c3195-S1985868475-070.SATISFIABLE.cnf
MD5SUM2611875052dd229d9ca71a614eae0715
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.042992
Satisfiable
(Un)Satisfiability was proved
Number of variables750
Number of clauses3195
Sum of the clauses size9585
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 33195
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.29/0.30	c 0 clauses are redundant and removed
0.29/0.30	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.29/0.30	c 0 vars are fixed and 0 clauses are removed after lookahead
0.29/0.30	c initial seed is 230098704
0.29/0.30	c try=1 flip j=648955 walk=574590 seed 230098721
0.29/0.30	c A solution is found
0.29/0.30	s SATISFIABLE
0.29/0.30	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 -700 701 702 703 704 705 -706 707 -708 709 -710 -711 712 713 714 715 716 717 718 -719 720 -721 722 723 724 -725 726 727 728 729 730 -731 -732 -733 734 -735 736 737 -738 -739 -740 -741 -742 -743 744 745 746 747 -748 -749 750 
0.29/0.30	v 0 
0.29/0.30	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-3426772-1306770771/watcher-3426772-1306770771 -o /tmp/evaluation-result-3426772-1306770771/solver-3426772-1306770771 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426772-1306770771.cnf 230095247 

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: 2.00 2.00 2.00 2/400 478
/proc/meminfo: memFree=4694108/32950904 swapFree=61926028/67111528
[pid=478] ppid=476 vsize=1185452 CPUtime=0 cores=0,2,4,6
/proc/478/stat : 478 (sattime2011) R 476 478 32326 0 -1 4194304 200 0 0 0 0 0 0 0 25 0 1 0 788676832 1213902848 145 33554432000 4194304 4230460 140737285800512 18446744073709551615 237278540485 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/478/statm: 296363 146 100 9 0 293520 0

[startup+0.039053 s]
/proc/loadavg: 2.00 2.00 2.00 2/400 478
/proc/meminfo: memFree=4694108/32950904 swapFree=61926028/67111528
[pid=478] ppid=476 vsize=1185980 CPUtime=0.03 cores=0,2,4,6
/proc/478/stat : 478 (sattime2011) R 476 478 32326 0 -1 4202496 435 0 0 0 3 0 0 0 25 0 1 0 788676832 1214443520 378 33554432000 4194304 4230460 140737285800512 18446744073709551615 4219807 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/478/statm: 296495 378 117 9 0 293652 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1185980

[startup+0.101109 s]
/proc/loadavg: 2.00 2.00 2.00 2/400 478
/proc/meminfo: memFree=4694108/32950904 swapFree=61926028/67111528
[pid=478] ppid=476 vsize=1185980 CPUtime=0.09 cores=0,2,4,6
/proc/478/stat : 478 (sattime2011) R 476 478 32326 0 -1 4202496 435 0 0 0 9 0 0 0 25 0 1 0 788676832 1214443520 378 33554432000 4194304 4230460 140737285800512 18446744073709551615 4199918 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/478/statm: 296495 378 117 9 0 293652 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1185980

[startup+0.301067 s]
/proc/loadavg: 2.00 2.00 2.00 2/400 478
/proc/meminfo: memFree=4694108/32950904 swapFree=61926028/67111528
[pid=478] ppid=476 vsize=1185980 CPUtime=0.29 cores=0,2,4,6
/proc/478/stat : 478 (sattime2011) R 476 478 32326 0 -1 4202496 435 0 0 0 29 0 0 0 25 0 1 0 788676832 1214443520 378 33554432000 4194304 4230460 140737285800512 18446744073709551615 4196480 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/478/statm: 296495 378 117 9 0 293652 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1185980

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

Child status: 10
Real time (s): 0.30471
CPU time (s): 0.303952
CPU user time (s): 0.302953
CPU system time (s): 0.000999
CPU usage (%): 99.7513
Max. virtual memory (cumulated for all children) (KiB): 1185980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.302953
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= 439
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 0.004999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node121 at 2011-05-30 17:52:51
IDJOB=3426772
IDBENCH=82744
IDSOLVER=1924
FILE ID=node121/3426772-1306770771
RUNJOBID= node121-1306761771-32344
PBS_JOBID= 13475003
Free space on /tmp= 57912 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v750-c3195-S1985868475-070.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426772-1306770771/watcher-3426772-1306770771 -o /tmp/evaluation-result-3426772-1306770771/solver-3426772-1306770771 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426772-1306770771.cnf 230095247

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

MD5SUM BENCH= 2611875052dd229d9ca71a614eae0715
RANDOM SEED=230095247

node121.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		: 2666.817
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	: 5333.63
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		: 2666.817
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	: 5226.07
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		: 2666.817
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	: 5332.84
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		: 2666.817
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		: 2666.817
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	: 5332.82
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		: 2666.817
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		: 2666.817
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		: 2666.817
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:     32950904 kB
MemFree:       4694140 kB
Buffers:        262972 kB
Cached:       20158776 kB
SwapCached:      11856 kB
Active:       13188344 kB
Inactive:     14401316 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950904 kB
LowFree:       4694140 kB
SwapTotal:    67111528 kB
SwapFree:     61926028 kB
Dirty:            7772 kB
Writeback:           0 kB
AnonPages:     7162724 kB
Mapped:          26036 kB
Slab:           546664 kB
PageTables:      52028 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586980 kB
Committed_AS: 84710476 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= 57904 MiB
End job on node121 at 2011-05-30 17:52:51