Trace number 3426844

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 0.308952 0.308905

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v700-c2982-S628307658-028.SATISFIABLE.cnf
MD5SUM0b3e0de9aa59dd098eea77ce3aaba6c9
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.020996
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 

0.30/0.30	c 0 clauses are redundant and removed
0.30/0.30	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.30/0.30	c 0 vars are fixed and 0 clauses are removed after lookahead
0.30/0.30	c initial seed is 1623432089
0.30/0.30	c try=1 flip j=662708 walk=580058 seed 1623432106
0.30/0.30	c A solution is found
0.30/0.30	s SATISFIABLE
0.30/0.30	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 
0.30/0.30	v 0 
0.30/0.30	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-3426844-1306774134/watcher-3426844-1306774134 -o /tmp/evaluation-result-3426844-1306774134/solver-3426844-1306774134 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426844-1306774134.cnf 1623428632 

running on 4 cores: 1,3,5,7

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: 1.98 2.01 2.00 2/481 21330
/proc/meminfo: memFree=4653212/32950928 swapFree=47704892/67111528
[pid=21330] ppid=21328 vsize=1185848 CPUtime=0.01 cores=1,3,5,7
/proc/21330/stat : 21330 (sattime2011) R 21328 21330 20411 0 -1 4202496 421 0 0 0 1 0 0 0 25 0 1 0 789013115 1214308352 364 33554432000 4194304 4230460 140733823610320 18446744073709551615 4220330 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/21330/statm: 296462 364 117 9 0 293619 0

[startup+0.0360759 s]
/proc/loadavg: 1.98 2.01 2.00 2/481 21330
/proc/meminfo: memFree=4653212/32950928 swapFree=47704892/67111528
[pid=21330] ppid=21328 vsize=1185848 CPUtime=0.03 cores=1,3,5,7
/proc/21330/stat : 21330 (sattime2011) R 21328 21330 20411 0 -1 4202496 421 0 0 0 3 0 0 0 25 0 1 0 789013115 1214308352 364 33554432000 4194304 4230460 140733823610320 18446744073709551615 4199893 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/21330/statm: 296462 364 117 9 0 293619 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1185848

[startup+0.101064 s]
/proc/loadavg: 1.98 2.01 2.00 2/481 21330
/proc/meminfo: memFree=4653212/32950928 swapFree=47704892/67111528
[pid=21330] ppid=21328 vsize=1185848 CPUtime=0.1 cores=1,3,5,7
/proc/21330/stat : 21330 (sattime2011) R 21328 21330 20411 0 -1 4202496 421 0 0 0 10 0 0 0 25 0 1 0 789013115 1214308352 364 33554432000 4194304 4230460 140733823610320 18446744073709551615 4224196 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/21330/statm: 296462 364 117 9 0 293619 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1185848

[startup+0.301026 s]
/proc/loadavg: 1.98 2.01 2.00 2/481 21330
/proc/meminfo: memFree=4653212/32950928 swapFree=47704892/67111528
[pid=21330] ppid=21328 vsize=1185848 CPUtime=0.3 cores=1,3,5,7
/proc/21330/stat : 21330 (sattime2011) R 21328 21330 20411 0 -1 4202496 421 0 0 0 30 0 0 0 25 0 1 0 789013115 1214308352 364 33554432000 4194304 4230460 140733823610320 18446744073709551615 4219807 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/21330/statm: 296462 364 117 9 0 293619 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1185848

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

Child status: 10
Real time (s): 0.308905
CPU time (s): 0.308952
CPU user time (s): 0.307953
CPU system time (s): 0.000999
CPU usage (%): 100.015
Max. virtual memory (cumulated for all children) (KiB): 1185848

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.307953
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= 425
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 0.011998 second system time

The end

Launcher Data 

Begin job on node127 at 2011-05-30 18:48:54
IDJOB=3426844
IDBENCH=82816
IDSOLVER=1924
FILE ID=node127/3426844-1306774134
RUNJOBID= node127-1306761770-20430
PBS_JOBID= 13474997
Free space on /tmp= 59756 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v700-c2982-S628307658-028.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426844-1306774134/watcher-3426844-1306774134 -o /tmp/evaluation-result-3426844-1306774134/solver-3426844-1306774134 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426844-1306774134.cnf 1623428632

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

MD5SUM BENCH= 0b3e0de9aa59dd098eea77ce3aaba6c9
RANDOM SEED=1623428632

node127.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		: 2666.823
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	: 5333.64
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		: 2666.823
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	: 5332.83
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		: 2666.823
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		: 2666.823
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	: 5332.86
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		: 2666.823
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		: 2666.823
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		: 2666.823
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	: 5332.60
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		: 2666.823
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:     32950928 kB
MemFree:       4653492 kB
Buffers:        299692 kB
Cached:       15283804 kB
SwapCached:      21304 kB
Active:       13245772 kB
Inactive:     14400196 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       4653492 kB
SwapTotal:    67111528 kB
SwapFree:     47704892 kB
Dirty:            7772 kB
Writeback:           0 kB
AnonPages:    12048188 kB
Mapped:          26580 kB
Slab:           488092 kB
PageTables:      95304 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 120928316 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= 59748 MiB
End job on node127 at 2011-05-30 18:48:55