Trace number 3261792

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 0.424934 0.425412

General information on the benchmark

Namecrafted/kullmann/GreenTao/
GreenTaok1k2/GreenTao_2-3-5_527.cnf
MD5SUM2b93573a7ecda0c32aa008181e0ed582
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.144977
Satisfiable
(Un)Satisfiability was proved
Number of variables526
Number of clauses12647
Sum of the clauses size38609
Maximum clause length5
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 312313
Number of clauses of size 40
Number of clauses of size 5334
Number of clauses of size over 50

Solver Data 

0.39/0.42	c 0 clauses are redundant and removed
0.39/0.42	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.39/0.42	c 0 vars are fixed and 0 clauses are removed after lookahead
0.39/0.42	c initial seed is 1773815721
0.39/0.42	c try=1 flip j=268136 walk=217621 seed 1773815738
0.39/0.42	c A solution is found
0.39/0.42	s SATISFIABLE
0.39/0.42	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 
0.39/0.42	v 0 
0.39/0.42	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-3261792-1307637185/watcher-3261792-1307637185 -o /tmp/evaluation-result-3261792-1307637185/solver-3261792-1307637185 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3261792-1307637185.cnf 1773808934 

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: 3.84 3.97 3.90 1/180 10744
/proc/meminfo: memFree=32640988/32950928 swapFree=67055428/67111528
[pid=10744] ppid=10742 vsize=1185716 CPUtime=0 cores=4,6
/proc/10744/stat : 10744 (shortsattime201) R 10742 10744 9857 0 -1 4194304 308 0 0 0 0 0 0 0 18 0 1 0 875315565 1214173184 252 33554432000 4194304 4230460 140733932057280 18446744073709551615 239476355781 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/10744/statm: 296429 252 99 9 0 293586 0

[startup+0.0398769 s]
/proc/loadavg: 3.84 3.97 3.90 1/180 10744
/proc/meminfo: memFree=32640988/32950928 swapFree=67055428/67111528
[pid=10744] ppid=10742 vsize=1186636 CPUtime=0.03 cores=4,6
/proc/10744/stat : 10744 (shortsattime201) R 10742 10744 9857 0 -1 4202496 599 0 0 0 3 0 0 0 18 0 1 0 875315565 1215115264 542 33554432000 4194304 4230460 140733932057280 18446744073709551615 4207735 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/10744/statm: 296659 542 103 9 0 293816 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1186636

[startup+0.10084 s]
/proc/loadavg: 3.84 3.97 3.90 1/180 10744
/proc/meminfo: memFree=32640988/32950928 swapFree=67055428/67111528
[pid=10744] ppid=10742 vsize=1187300 CPUtime=0.09 cores=4,6
/proc/10744/stat : 10744 (shortsattime201) R 10742 10744 9857 0 -1 4202496 933 0 0 0 9 0 0 0 18 0 1 0 875315565 1215795200 875 33554432000 4194304 4230460 140733932057280 18446744073709551615 4220221 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/10744/statm: 296825 875 117 9 0 293982 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1187300

[startup+0.300828 s]
/proc/loadavg: 3.84 3.97 3.90 1/180 10744
/proc/meminfo: memFree=32640988/32950928 swapFree=67055428/67111528
[pid=10744] ppid=10742 vsize=1187300 CPUtime=0.29 cores=4,6
/proc/10744/stat : 10744 (shortsattime201) R 10742 10744 9857 0 -1 4202496 933 0 0 0 29 0 0 0 18 0 1 0 875315565 1215795200 875 33554432000 4194304 4230460 140733932057280 18446744073709551615 4219807 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/10744/statm: 296825 875 117 9 0 293982 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1187300

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

[startup+0.40081 s]
/proc/loadavg: 3.84 3.97 3.90 1/180 10744
/proc/meminfo: memFree=32640988/32950928 swapFree=67055428/67111528
[pid=10744] ppid=10742 vsize=1187300 CPUtime=0.39 cores=4,6
/proc/10744/stat : 10744 (shortsattime201) R 10742 10744 9857 0 -1 4202496 933 0 0 0 39 0 0 0 18 0 1 0 875315565 1215795200 875 33554432000 4194304 4230460 140733932057280 18446744073709551615 4219933 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/10744/statm: 296825 875 117 9 0 293982 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 1187300

Child status: 10
Real time (s): 0.425412
CPU time (s): 0.424934
CPU user time (s): 0.423935
CPU system time (s): 0.000999
CPU usage (%): 99.8876
Max. virtual memory (cumulated for all children) (KiB): 1187300

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.423935
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= 937
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= 3
involuntary context switches= 2

runsolver used 0.003999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node148 at 2011-06-09 18:33:05
IDJOB=3261792
IDBENCH=83252
IDSOLVER=1566
FILE ID=node148/3261792-1307637185
RUNJOBID= node148-1307635882-10280
PBS_JOBID= 13549344
Free space on /tmp= 74136 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/crafted/kullmann/GreenTao/GreenTaok1k2/GreenTao_2-3-5_527.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3261792-1307637185/watcher-3261792-1307637185 -o /tmp/evaluation-result-3261792-1307637185/solver-3261792-1307637185 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3261792-1307637185.cnf 1773808934

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

MD5SUM BENCH= 2b93573a7ecda0c32aa008181e0ed582
RANDOM SEED=1773808934

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:      32641664 kB
Buffers:         22912 kB
Cached:         127684 kB
SwapCached:       8788 kB
Active:         119612 kB
Inactive:        52528 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      32641664 kB
SwapTotal:    67111528 kB
SwapFree:     67055428 kB
Dirty:            7780 kB
Writeback:           0 kB
AnonPages:       19836 kB
Mapped:          13652 kB
Slab:            71732 kB
PageTables:       5624 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   257720 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= 74124 MiB
End job on node148 at 2011-06-09 18:33:06