Trace number 3154302

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
sattime 2011-03-02SAT 0.030995 0.032923

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v650-c2769-S1894319588-015.SATISFIABLE.cnf
MD5SUMc06f05996bba25e7e26c6579a49532fc
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.013997
Satisfiable
(Un)Satisfiability was proved
Number of variables650
Number of clauses2769
Sum of the clauses size8307
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32769
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.01/0.03	c 0 clauses are redundant and removed
0.01/0.03	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.01/0.03	c 0 vars are fixed and 0 clauses are removed after lookahead
0.01/0.03	c initial seed is 1140039374
0.01/0.03	c try=1 flip j=57627 walk=50938 seed 1140039391
0.01/0.03	c A solution is found
0.01/0.03	s SATISFIABLE
0.01/0.03	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 
0.01/0.03	v 0 
0.01/0.03	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: 977)

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-3154302-1307640107/watcher-3154302-1307640107 -o /tmp/evaluation-result-3154302-1307640107/solver-3154302-1307640107 -C 2400 -W 1300 -M 7680 sattime HOME/instance-3154302-1307640107.cnf 1140039374 

running on 2 cores: 4,6

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: 1.26 2.09 3.00 5/189 11811
/proc/meminfo: memFree=32616736/32950928 swapFree=67055428/67111528
[pid=11811] ppid=11809 vsize=990536 CPUtime=0 cores=4,6
/proc/11811/stat : 11811 (sattime) R 11809 11811 9857 0 -1 4202496 376 0 0 0 0 0 0 0 25 0 1 0 875607783 1014308864 319 33554432000 4194304 4228548 140736332920720 18446744073709551615 4216384 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/11811/statm: 247634 322 116 9 0 244791 0

[startup+0.013275 s]
/proc/loadavg: 1.26 2.09 3.00 5/189 11811
/proc/meminfo: memFree=32616736/32950928 swapFree=67055428/67111528
[pid=11811] ppid=11809 vsize=990536 CPUtime=0.01 cores=4,6
/proc/11811/stat : 11811 (sattime) R 11809 11811 9857 0 -1 4202496 392 0 0 0 1 0 0 0 25 0 1 0 875607783 1014308864 335 33554432000 4194304 4228548 140736332920720 18446744073709551615 4216788 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/11811/statm: 247634 335 116 9 0 244791 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 990536

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

[startup+0.013275 s]
/proc/loadavg: 1.26 2.09 3.00 5/189 11811
/proc/meminfo: memFree=32616736/32950928 swapFree=67055428/67111528
[pid=11811] ppid=11809 vsize=990536 CPUtime=0.01 cores=4,6
/proc/11811/stat : 11811 (sattime) R 11809 11811 9857 0 -1 4202496 392 0 0 0 1 0 0 0 25 0 1 0 875607783 1014308864 335 33554432000 4194304 4228548 140736332920720 18446744073709551615 4216788 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/11811/statm: 247634 335 116 9 0 244791 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 990536

Child status: 10
Real time (s): 0.032923
CPU time (s): 0.030995
CPU user time (s): 0.030995
CPU system time (s): 0
CPU usage (%): 94.144
Max. virtual memory (cumulated for all children) (KiB): 990536

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.030995
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= 396
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 node148 at 2011-06-09 19:21:47
IDJOB=3154302
IDBENCH=82809
IDSOLVER=1564
FILE ID=node148/3154302-1307640107
RUNJOBID= node148-1307640103-11526
PBS_JOBID= 13549344
Free space on /tmp= 74140 MiB

SOLVER NAME= sattime 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v650-c2769-S1894319588-015.SATISFIABLE.cnf
COMMAND LINE= sattime BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3154302-1307640107/watcher-3154302-1307640107 -o /tmp/evaluation-result-3154302-1307640107/solver-3154302-1307640107 -C 2400 -W 1300 -M 7680  sattime HOME/instance-3154302-1307640107.cnf 1140039374

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

MD5SUM BENCH= c06f05996bba25e7e26c6579a49532fc
RANDOM SEED=1140039374

node148.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		: 2666.854
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		: 2666.854
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		: 2666.854
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	: 5332.83
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		: 2666.854
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		: 2666.854
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		: 2666.854
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		: 2666.854
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		: 2666.854
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      32617288 kB
Buffers:         26632 kB
Cached:         144108 kB
SwapCached:       8788 kB
Active:         134744 kB
Inactive:        60264 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      32617288 kB
SwapTotal:    67111528 kB
SwapFree:     67055428 kB
Dirty:           32052 kB
Writeback:           8 kB
AnonPages:       22536 kB
Mapped:          13316 kB
Slab:            73996 kB
PageTables:       5696 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  3215080 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= 74132 MiB
End job on node148 at 2011-06-09 19:21:47