Trace number 3153980

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 0.232963 0.233061

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v700-c2982-S812011128-009.SATISFIABLE.cnf
MD5SUMafbdc7a317cd52b76c978398c2e877e2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.218965
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 

0.20/0.23	c 0 clauses are redundant and removed
0.20/0.23	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.20/0.23	c 0 vars are fixed and 0 clauses are removed after lookahead
0.20/0.23	c initial seed is 57137537
0.20/0.23	c try=1 flip j=493674 walk=432976 seed 57137554
0.20/0.23	c A solution is found
0.20/0.23	s SATISFIABLE
0.20/0.23	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 
0.20/0.23	v 0 
0.20/0.23	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-3153980-1301685137/watcher-3153980-1301685137 -o /tmp/evaluation-result-3153980-1301685137/solver-3153980-1301685137 -C 2400 -W 1300 -M 7680 sattime2011 HOME/instance-3153980-1301685137.cnf 57134080 

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: 2.64 2.32 3.15 4/187 8785
/proc/meminfo: memFree=21170156/32951132 swapFree=67111528/67111528
[pid=8785] ppid=8783 vsize=1185848 CPUtime=0 cores=5,7
/proc/8785/stat : 8785 (sattime2011) R 8783 8785 7195 0 -1 4202496 423 0 0 0 0 0 0 0 25 0 1 0 280112349 1214308352 363 33554432000 4194304 4230460 140735975790928 18446744073709551615 4218358 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8785/statm: 296462 363 117 9 0 293619 0

[startup+0.0410361 s]
/proc/loadavg: 2.64 2.32 3.15 4/187 8785
/proc/meminfo: memFree=21170156/32951132 swapFree=67111528/67111528
[pid=8785] ppid=8783 vsize=1185848 CPUtime=0.04 cores=5,7
/proc/8785/stat : 8785 (sattime2011) R 8783 8785 7195 0 -1 4202496 423 0 0 0 4 0 0 0 25 0 1 0 280112349 1214308352 363 33554432000 4194304 4230460 140735975790928 18446744073709551615 4221549 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8785/statm: 296462 363 117 9 0 293619 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1185848

[startup+0.101027 s]
/proc/loadavg: 2.64 2.32 3.15 4/187 8785
/proc/meminfo: memFree=21170156/32951132 swapFree=67111528/67111528
[pid=8785] ppid=8783 vsize=1185848 CPUtime=0.1 cores=5,7
/proc/8785/stat : 8785 (sattime2011) R 8783 8785 7195 0 -1 4202496 423 0 0 0 10 0 0 0 25 0 1 0 280112349 1214308352 363 33554432000 4194304 4230460 140735975790928 18446744073709551615 242969951764 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8785/statm: 296462 363 117 9 0 293619 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1185848

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

[startup+0.201006 s]
/proc/loadavg: 2.64 2.32 3.15 4/187 8785
/proc/meminfo: memFree=21170156/32951132 swapFree=67111528/67111528
[pid=8785] ppid=8783 vsize=1185848 CPUtime=0.2 cores=5,7
/proc/8785/stat : 8785 (sattime2011) R 8783 8785 7195 0 -1 4202496 423 0 0 0 20 0 0 0 25 0 1 0 280112349 1214308352 363 33554432000 4194304 4230460 140735975790928 18446744073709551615 4221456 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8785/statm: 296462 363 117 9 0 293619 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 1185848

Child status: 10
Real time (s): 0.233061
CPU time (s): 0.232963
CPU user time (s): 0.231964
CPU system time (s): 0.000999
CPU usage (%): 99.9579
Max. virtual memory (cumulated for all children) (KiB): 1185848

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.231964
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= 427
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 0.003999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node128 at 2011-04-01 21:12:17
IDJOB=3153980
IDBENCH=83087
IDSOLVER=1563
FILE ID=node128/3153980-1301685137
RUNJOBID= node128-1301685101-8502
PBS_JOBID= 12840569
Free space on /tmp= 70968 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v700-c2982-S812011128-009.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3153980-1301685137/watcher-3153980-1301685137 -o /tmp/evaluation-result-3153980-1301685137/solver-3153980-1301685137 -C 2400 -W 1300 -M 7680  sattime2011 HOME/instance-3153980-1301685137.cnf 57134080

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

MD5SUM BENCH= afbdc7a317cd52b76c978398c2e877e2
RANDOM SEED=57134080

node128.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		: 2666.852
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		: 2666.852
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	: 5332.75
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		: 2666.852
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	: 5332.82
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		: 2666.852
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	: 5332.75
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		: 2666.852
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		: 2666.852
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	: 5332.75
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		: 2666.852
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	: 5332.82
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		: 2666.852
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	: 5434.49
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      21170436 kB
Buffers:        334048 kB
Cached:       11101784 kB
SwapCached:          0 kB
Active:        7932104 kB
Inactive:      3573924 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      21170436 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           23584 kB
Writeback:           0 kB
AnonPages:       69588 kB
Mapped:          15572 kB
Slab:           212648 kB
PageTables:       5400 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:  3798616 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 70960 MiB
End job on node128 at 2011-04-01 21:12:17