Trace number 3427034

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 0.407937 0.409175

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v600-c2556-S610796494-086.SATISFIABLE.cnf
MD5SUM82f21398af62a72249630e457a91aa93
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.022996
Satisfiable
(Un)Satisfiability was proved
Number of variables600
Number of clauses2556
Sum of the clauses size7668
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32556
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.39/0.40	c 0 clauses are redundant and removed
0.39/0.40	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.39/0.40	c 0 vars are fixed and 0 clauses are removed after lookahead
0.39/0.40	c initial seed is 1246429307
0.39/0.40	c try=1 flip j=874941 walk=760408 seed 1246429324
0.39/0.40	c A solution is found
0.39/0.40	s SATISFIABLE
0.39/0.40	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 
0.39/0.40	v 0 
0.39/0.40	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-3427034-1306782120/watcher-3427034-1306782120 -o /tmp/evaluation-result-3427034-1306782120/solver-3427034-1306782120 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3427034-1306782120.cnf 1246425850 

running on 4 cores: 0,2,4,6

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: 2.13 2.04 2.01 2/469 15930
/proc/meminfo: memFree=4204912/32951124 swapFree=56297240/67111528
[pid=15930] ppid=15928 vsize=1185848 CPUtime=0 cores=0,2,4,6
/proc/15930/stat : 15930 (sattime2011) R 15928 15930 14833 0 -1 4202496 391 0 0 0 0 0 0 0 25 0 1 0 868442484 1214308352 334 33554432000 4194304 4230460 140734715402752 18446744073709551615 4216969 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/15930/statm: 296462 334 117 9 0 293619 0

[startup+0.035255 s]
/proc/loadavg: 2.13 2.04 2.01 2/469 15930
/proc/meminfo: memFree=4204912/32951124 swapFree=56297240/67111528
[pid=15930] ppid=15928 vsize=1185848 CPUtime=0.03 cores=0,2,4,6
/proc/15930/stat : 15930 (sattime2011) R 15928 15930 14833 0 -1 4202496 391 0 0 0 3 0 0 0 25 0 1 0 868442484 1214308352 334 33554432000 4194304 4230460 140734715402752 18446744073709551615 4223405 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/15930/statm: 296462 334 117 9 0 293619 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1185848

[startup+0.100249 s]
/proc/loadavg: 2.13 2.04 2.01 2/469 15930
/proc/meminfo: memFree=4204912/32951124 swapFree=56297240/67111528
[pid=15930] ppid=15928 vsize=1185848 CPUtime=0.09 cores=0,2,4,6
/proc/15930/stat : 15930 (sattime2011) R 15928 15930 14833 0 -1 4202496 391 0 0 0 9 0 0 0 25 0 1 0 868442484 1214308352 334 33554432000 4194304 4230460 140734715402752 18446744073709551615 4219840 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/15930/statm: 296462 334 117 9 0 293619 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1185848

[startup+0.30022 s]
/proc/loadavg: 2.13 2.04 2.01 2/469 15930
/proc/meminfo: memFree=4204912/32951124 swapFree=56297240/67111528
[pid=15930] ppid=15928 vsize=1185848 CPUtime=0.29 cores=0,2,4,6
/proc/15930/stat : 15930 (sattime2011) R 15928 15930 14833 0 -1 4202496 391 0 0 0 29 0 0 0 25 0 1 0 868442484 1214308352 334 33554432000 4194304 4230460 140734715402752 18446744073709551615 4199696 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/15930/statm: 296462 334 117 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+0.400248 s]
/proc/loadavg: 2.13 2.04 2.01 2/469 15930
/proc/meminfo: memFree=4204912/32951124 swapFree=56297240/67111528
[pid=15930] ppid=15928 vsize=1185848 CPUtime=0.39 cores=0,2,4,6
/proc/15930/stat : 15930 (sattime2011) R 15928 15930 14833 0 -1 4202496 391 0 0 0 39 0 0 0 25 0 1 0 868442484 1214308352 334 33554432000 4194304 4230460 140734715402752 18446744073709551615 4224242 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/15930/statm: 296462 334 117 9 0 293619 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 1185848

Child status: 10
Real time (s): 0.409175
CPU time (s): 0.407937
CPU user time (s): 0.407937
CPU system time (s): 0
CPU usage (%): 99.6975
Max. virtual memory (cumulated for all children) (KiB): 1185848

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.407937
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= 395
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 node111 at 2011-05-30 21:02:00
IDJOB=3427034
IDBENCH=83006
IDSOLVER=1924
FILE ID=node111/3427034-1306782120
RUNJOBID= node111-1306782079-15828
PBS_JOBID= 13475013
Free space on /tmp= 56240 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v600-c2556-S610796494-086.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3427034-1306782120/watcher-3427034-1306782120 -o /tmp/evaluation-result-3427034-1306782120/solver-3427034-1306782120 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3427034-1306782120.cnf 1246425850

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

MD5SUM BENCH= 82f21398af62a72249630e457a91aa93
RANDOM SEED=1246425850

node111.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		: 2666.849
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		: 2666.849
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	: 5428.12
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		: 2666.849
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		: 2666.849
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		: 2666.849
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		: 2666.849
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		: 2666.849
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	: 5332.67
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		: 2666.849
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:       4205076 kB
Buffers:        256356 kB
Cached:       20387652 kB
SwapCached:      10720 kB
Active:       17044208 kB
Inactive:     10996372 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       4205076 kB
SwapTotal:    67111528 kB
SwapFree:     56297240 kB
Dirty:           11368 kB
Writeback:           0 kB
AnonPages:     7394824 kB
Mapped:          27900 kB
Slab:           570212 kB
PageTables:      66592 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 150271792 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= 56232 MiB
End job on node111 at 2011-05-30 21:02:01