Trace number 3157238

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
shortsattime2011 2011-03-02SAT 0.562914 0.564626

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v700-c2982-S893015585-015.SATISFIABLE.cnf
MD5SUM30f9bf8e3b9c70d1ebd1c611372c0c4a
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.562914
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 

0.49/0.56	c 0 clauses are redundant and removed
0.49/0.56	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.49/0.56	c 0 vars are fixed and 0 clauses are removed after lookahead
0.49/0.56	c initial seed is 410695650
0.49/0.56	c try=1 flip j=1164645 walk=1015192 seed 410695667
0.49/0.56	c A solution is found
0.49/0.56	s SATISFIABLE
0.49/0.56	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 
0.49/0.56	v 0 
0.49/0.56	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-3157238-1301683533/watcher-3157238-1301683533 -o /tmp/evaluation-result-3157238-1301683533/solver-3157238-1301683533 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157238-1301683533.cnf 410688863 

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: 4.21 4.03 3.96 5/187 8316
/proc/meminfo: memFree=21176728/32951132 swapFree=67111528/67111528
[pid=8316] ppid=8314 vsize=1185848 CPUtime=0 cores=5,7
/proc/8316/stat : 8316 (shortsattime201) R 8314 8316 7195 0 -1 4202496 369 0 0 0 0 0 0 0 25 0 1 0 279951925 1214308352 309 33554432000 4194304 4230460 140737354434640 18446744073709551615 242970211013 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8316/statm: 296462 311 117 9 0 293619 0

[startup+0.096326 s]
/proc/loadavg: 4.21 4.03 3.96 5/187 8316
/proc/meminfo: memFree=21176728/32951132 swapFree=67111528/67111528
[pid=8316] ppid=8314 vsize=1185848 CPUtime=0.09 cores=5,7
/proc/8316/stat : 8316 (shortsattime201) R 8314 8316 7195 0 -1 4202496 423 0 0 0 9 0 0 0 25 0 1 0 279951925 1214308352 363 33554432000 4194304 4230460 140737354434640 18446744073709551615 4217147 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8316/statm: 296462 363 117 9 0 293619 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1185848

[startup+0.100325 s]
/proc/loadavg: 4.21 4.03 3.96 5/187 8316
/proc/meminfo: memFree=21176728/32951132 swapFree=67111528/67111528
[pid=8316] ppid=8314 vsize=1185848 CPUtime=0.09 cores=5,7
/proc/8316/stat : 8316 (shortsattime201) R 8314 8316 7195 0 -1 4202496 423 0 0 0 9 0 0 0 25 0 1 0 279951925 1214308352 363 33554432000 4194304 4230460 140737354434640 18446744073709551615 4218311 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8316/statm: 296462 363 117 9 0 293619 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1185848

[startup+0.300289 s]
/proc/loadavg: 4.21 4.03 3.96 5/187 8316
/proc/meminfo: memFree=21176728/32951132 swapFree=67111528/67111528
[pid=8316] ppid=8314 vsize=1185848 CPUtime=0.29 cores=5,7
/proc/8316/stat : 8316 (shortsattime201) R 8314 8316 7195 0 -1 4202496 423 0 0 0 29 0 0 0 25 0 1 0 279951925 1214308352 363 33554432000 4194304 4230460 140737354434640 18446744073709551615 4221147 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8316/statm: 296462 363 117 9 0 293619 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1185848

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

[startup+0.500256 s]
/proc/loadavg: 4.21 4.03 3.96 5/187 8316
/proc/meminfo: memFree=21176728/32951132 swapFree=67111528/67111528
[pid=8316] ppid=8314 vsize=1185848 CPUtime=0.49 cores=5,7
/proc/8316/stat : 8316 (shortsattime201) R 8314 8316 7195 0 -1 4202496 423 0 0 0 49 0 0 0 25 0 1 0 279951925 1214308352 363 33554432000 4194304 4230460 140737354434640 18446744073709551615 4221509 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/8316/statm: 296462 363 117 9 0 293619 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 1185848

Child status: 10
Real time (s): 0.564626
CPU time (s): 0.562914
CPU user time (s): 0.562914
CPU system time (s): 0
CPU usage (%): 99.6968
Max. virtual memory (cumulated for all children) (KiB): 1185848

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.562914
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= 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 0.000999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node128 at 2011-04-01 20:45:33
IDJOB=3157238
IDBENCH=82953
IDSOLVER=1566
FILE ID=node128/3157238-1301683533
RUNJOBID= node128-1301678137-7217
PBS_JOBID= 12840569
Free space on /tmp= 70968 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v700-c2982-S893015585-015.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157238-1301683533/watcher-3157238-1301683533 -o /tmp/evaluation-result-3157238-1301683533/solver-3157238-1301683533 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157238-1301683533.cnf 410688863

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

MD5SUM BENCH= 30f9bf8e3b9c70d1ebd1c611372c0c4a
RANDOM SEED=410688863

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:      21176760 kB
Buffers:        333604 kB
Cached:       11093456 kB
SwapCached:          0 kB
Active:        7926588 kB
Inactive:      3573608 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      21176760 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           15912 kB
Writeback:          12 kB
AnonPages:       73200 kB
Mapped:          15612 kB
Slab:           212016 kB
PageTables:       5488 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:  3799156 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 20:45:33