Trace number 3427023

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 0.026995 0.027475

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v600-c2556-S735137557-045.SATISFIABLE.cnf
MD5SUMdb052c7898d14b578cec80f7488daf9a
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.005999
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 

0.00/0.02	c 0 clauses are redundant and removed
0.00/0.02	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.02	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.02	c initial seed is 773852292
0.00/0.02	c try=1 flip j=44411 walk=38067 seed 773852309
0.00/0.02	c A solution is found
0.00/0.02	s SATISFIABLE
0.00/0.02	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 
0.00/0.02	v 0 
0.00/0.02	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-3427023-1306782046/watcher-3427023-1306782046 -o /tmp/evaluation-result-3427023-1306782046/solver-3427023-1306782046 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3427023-1306782046.cnf 773848835 

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: 1.97 2.02 2.00 2/524 27788
/proc/meminfo: memFree=4294028/32951124 swapFree=56930364/67111528
[pid=27788] ppid=27786 vsize=1185848 CPUtime=0.01 cores=1,3,5,7
/proc/27788/stat : 27788 (sattime2011) R 27786 27788 26739 0 -1 4202496 391 0 0 0 1 0 0 0 25 0 1 0 789802295 1214308352 334 33554432000 4194304 4230460 140737128393344 18446744073709551615 4221625 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/27788/statm: 296462 334 117 9 0 293619 0

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

Child status: 10
Real time (s): 0.027475
CPU time (s): 0.026995
CPU user time (s): 0.024996
CPU system time (s): 0.001999
CPU usage (%): 98.253
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.024996
system time used= 0.001999
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 0.006998 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node137 at 2011-05-30 21:00:46
IDJOB=3427023
IDBENCH=82995
IDSOLVER=1924
FILE ID=node137/3427023-1306782046
RUNJOBID= node137-1306777041-27484
PBS_JOBID= 13474987
Free space on /tmp= 56656 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v600-c2556-S735137557-045.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3427023-1306782046/watcher-3427023-1306782046 -o /tmp/evaluation-result-3427023-1306782046/solver-3427023-1306782046 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3427023-1306782046.cnf 773848835

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

MD5SUM BENCH= db052c7898d14b578cec80f7488daf9a
RANDOM SEED=773848835

node137.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		: 2666.844
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	: 5333.68
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		: 2666.844
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		: 2666.844
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		: 2666.844
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	: 5332.74
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		: 2666.844
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		: 2666.844
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		: 2666.844
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	: 5332.83
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		: 2666.844
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:     32951124 kB
MemFree:       4294184 kB
Buffers:        251900 kB
Cached:       19666356 kB
SwapCached:      11760 kB
Active:       16551336 kB
Inactive:     11375388 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       4294184 kB
SwapTotal:    67111528 kB
SwapFree:     56930364 kB
Dirty:           15808 kB
Writeback:           4 kB
AnonPages:     8006560 kB
Mapped:          21444 kB
Slab:           585352 kB
PageTables:      74440 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 163717552 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= 56648 MiB
End job on node137 at 2011-05-30 21:00:46