Trace number 3157028

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 0.050992 0.0562259

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v700-c2982-S900569154-026.SATISFIABLE.cnf
MD5SUM90af97b0aabddb9e07bb7ada8a5dcbc1
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.017996
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 

0.04/0.05	c 0 clauses are redundant and removed
0.04/0.05	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.04/0.05	c 0 vars are fixed and 0 clauses are removed after lookahead
0.04/0.05	c initial seed is 1290504373
0.04/0.05	c try=1 flip j=90991 walk=80555 seed 1290504390
0.04/0.05	c A solution is found
0.04/0.05	s SATISFIABLE
0.04/0.05	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 
0.04/0.05	v 0 
0.04/0.05	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-3157028-1301681003/watcher-3157028-1301681003 -o /tmp/evaluation-result-3157028-1301681003/solver-3157028-1301681003 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157028-1301681003.cnf 1290497586 

running on 2 cores: 0,2

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: 3.88 3.94 3.23 4/187 5306
/proc/meminfo: memFree=22369820/32951124 swapFree=67111528/67111528
[pid=5306] ppid=5304 vsize=1185452 CPUtime=0 cores=0,2
/proc/5306/stat : 5306 (shortsattime201) R 5304 5306 5038 0 -1 4194304 209 0 0 0 0 0 0 0 25 0 1 0 260515947 1213902848 152 33554432000 4194304 4230460 140736695081728 18446744073709551615 270338044613 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/5306/statm: 296363 153 100 9 0 293520 0

[startup+0.045423 s]
/proc/loadavg: 3.88 3.94 3.23 4/187 5306
/proc/meminfo: memFree=22369820/32951124 swapFree=67111528/67111528
[pid=5306] ppid=5304 vsize=1185848 CPUtime=0.04 cores=0,2
/proc/5306/stat : 5306 (shortsattime201) R 5304 5306 5038 0 -1 4202496 422 0 0 0 4 0 0 0 25 0 1 0 260515947 1214308352 363 33554432000 4194304 4230460 140736695081728 18446744073709551615 4224196 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/5306/statm: 296462 363 117 9 0 293619 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1185848

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

[startup+0.045423 s]
/proc/loadavg: 3.88 3.94 3.23 4/187 5306
/proc/meminfo: memFree=22369820/32951124 swapFree=67111528/67111528
[pid=5306] ppid=5304 vsize=1185848 CPUtime=0.04 cores=0,2
/proc/5306/stat : 5306 (shortsattime201) R 5304 5306 5038 0 -1 4202496 422 0 0 0 4 0 0 0 25 0 1 0 260515947 1214308352 363 33554432000 4194304 4230460 140736695081728 18446744073709551615 4224196 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/5306/statm: 296462 363 117 9 0 293619 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1185848

Child status: 10
Real time (s): 0.0562259
CPU time (s): 0.050992
CPU user time (s): 0.050992
CPU system time (s): 0
CPU usage (%): 90.6913
Max. virtual memory (cumulated for all children) (KiB): 1185848

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.050992
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= 426
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 0.001999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node143 at 2011-04-01 20:03:23
IDJOB=3157028
IDBENCH=82743
IDSOLVER=1566
FILE ID=node143/3157028-1301681003
RUNJOBID= node143-1301679701-5056
PBS_JOBID= 12840595
Free space on /tmp= 71900 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v700-c2982-S900569154-026.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157028-1301681003/watcher-3157028-1301681003 -o /tmp/evaluation-result-3157028-1301681003/solver-3157028-1301681003 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157028-1301681003.cnf 1290497586

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

MD5SUM BENCH= 90af97b0aabddb9e07bb7ada8a5dcbc1
RANDOM SEED=1290497586

node143.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		: 2666.846
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	: 5333.69
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		: 2666.846
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	: 5226.15
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		: 2666.846
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	: 5332.74
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		: 2666.846
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		: 2666.846
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		: 2666.846
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	: 5332.83
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		: 2666.846
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	: 5332.74
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		: 2666.846
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      22369976 kB
Buffers:        342268 kB
Cached:        9895748 kB
SwapCached:          0 kB
Active:        7044712 kB
Inactive:      3276484 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22369976 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           19400 kB
Writeback:           0 kB
AnonPages:       82976 kB
Mapped:          15492 kB
Slab:           195348 kB
PageTables:       5568 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  2624116 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= 71900 MiB
End job on node143 at 2011-04-01 20:03:23