Trace number 3157363

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 0.285955 0.285504

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v700-c2982-S1744841484-003.SATISFIABLE.cnf
MD5SUMdfb1a270a60c2005459af6275114712d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014996
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 

0.20/0.28	c 0 clauses are redundant and removed
0.20/0.28	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.20/0.28	c 0 vars are fixed and 0 clauses are removed after lookahead
0.20/0.28	c initial seed is 1863701233
0.20/0.28	c try=1 flip j=606716 walk=535528 seed 1863701250
0.20/0.28	c A solution is found
0.20/0.28	s SATISFIABLE
0.20/0.28	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 
0.20/0.28	v 0 
0.20/0.28	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-3157363-1301685132/watcher-3157363-1301685132 -o /tmp/evaluation-result-3157363-1301685132/solver-3157363-1301685132 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157363-1301685132.cnf 1863694446 

running on 2 cores: 1,3

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: 0.92 1.53 2.68 4/189 10350
/proc/meminfo: memFree=20210232/32951124 swapFree=67111528/67111528
[pid=10350] ppid=10348 vsize=1185848 CPUtime=0 cores=1,3
/proc/10350/stat : 10350 (shortsattime201) R 10348 10350 9032 0 -1 4202496 422 0 0 0 0 0 0 0 25 0 1 0 280111691 1214308352 363 33554432000 4194304 4230460 140736133601904 18446744073709551615 4199923 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/10350/statm: 296462 363 117 9 0 293619 0

[startup+0.0351079 s]
/proc/loadavg: 0.92 1.53 2.68 4/189 10350
/proc/meminfo: memFree=20210232/32951124 swapFree=67111528/67111528
[pid=10350] ppid=10348 vsize=1185848 CPUtime=0.03 cores=1,3
/proc/10350/stat : 10350 (shortsattime201) R 10348 10350 9032 0 -1 4202496 422 0 0 0 3 0 0 0 25 0 1 0 280111691 1214308352 363 33554432000 4194304 4230460 140736133601904 18446744073709551615 4200435 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/10350/statm: 296462 363 117 9 0 293619 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1185848

[startup+0.101096 s]
/proc/loadavg: 0.92 1.53 2.68 4/189 10350
/proc/meminfo: memFree=20210232/32951124 swapFree=67111528/67111528
[pid=10350] ppid=10348 vsize=1185848 CPUtime=0.1 cores=1,3
/proc/10350/stat : 10350 (shortsattime201) R 10348 10350 9032 0 -1 4202496 422 0 0 0 10 0 0 0 25 0 1 0 280111691 1214308352 363 33554432000 4194304 4230460 140736133601904 18446744073709551615 4200296 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/10350/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+0.201079 s]
/proc/loadavg: 0.92 1.53 2.68 4/189 10350
/proc/meminfo: memFree=20210232/32951124 swapFree=67111528/67111528
[pid=10350] ppid=10348 vsize=1185848 CPUtime=0.2 cores=1,3
/proc/10350/stat : 10350 (shortsattime201) R 10348 10350 9032 0 -1 4202496 422 0 0 0 20 0 0 0 25 0 1 0 280111691 1214308352 363 33554432000 4194304 4230460 140736133601904 18446744073709551615 4217077 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/10350/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): 0.285504
CPU time (s): 0.285955
CPU user time (s): 0.284956
CPU system time (s): 0.000999
CPU usage (%): 100.158
Max. virtual memory (cumulated for all children) (KiB): 1185848

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.284956
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= 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= 0

runsolver used 0.001999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node130 at 2011-04-01 21:12:12
IDJOB=3157363
IDBENCH=83078
IDSOLVER=1566
FILE ID=node130/3157363-1301685132
RUNJOBID= node130-1301685131-10256
PBS_JOBID= 12840567
Free space on /tmp= 71232 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v700-c2982-S1744841484-003.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157363-1301685132/watcher-3157363-1301685132 -o /tmp/evaluation-result-3157363-1301685132/solver-3157363-1301685132 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157363-1301685132.cnf 1863694446

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

MD5SUM BENCH= dfb1a270a60c2005459af6275114712d
RANDOM SEED=1863694446

node130.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		: 2666.838
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	: 5333.67
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		: 2666.838
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		: 2666.838
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	: 5332.75
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		: 2666.838
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	: 5332.81
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		: 2666.838
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		: 2666.838
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		: 2666.838
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		: 2666.838
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	: 5332.81
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      20210512 kB
Buffers:        346192 kB
Cached:       12053432 kB
SwapCached:          0 kB
Active:        7836340 kB
Inactive:      4630148 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20210512 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           31736 kB
Writeback:           0 kB
AnonPages:       66712 kB
Mapped:          15540 kB
Slab:           211780 kB
PageTables:       5672 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  3800392 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= 71224 MiB
End job on node130 at 2011-04-01 21:12:12