Trace number 3162689

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
sparrow2011 sparrow2011_ubcsat1.2_2011-03-02SAT 0.029995 0.0357779

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v550-c2343-S1114532273-035.SATISFIABLE.cnf
MD5SUMff7e731e0657a2728f5ff73a4fd8bb2e
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007998
Satisfiable
(Un)Satisfiability was proved
Number of variables550
Number of clauses2343
Sum of the clauses size7029
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32343
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.03	c 
0.00/0.03	c UBCSAT version 1.2-sparrow2011 (based on BETA 1.2-b10) SAT11 Sparrow Build
0.00/0.03	c 
0.00/0.03	c http://www.satlib.org/ubcsat
0.00/0.03	c 
0.00/0.03	c ubcsat -h for help
0.00/0.03	c 
0.00/0.03	s SATISFIABLE
0.00/0.03	v  1 2 3 4 -5 -6 7 8 -9 -10
0.00/0.03	v  -11 -12 -13 14 15 -16 17 -18 -19 20
0.00/0.03	v  21 22 -23 24 25 -26 27 -28 29 30
0.00/0.03	v  31 -32 33 -34 -35 36 -37 38 39 -40
0.00/0.03	v  41 -42 -43 -44 -45 -46 -47 -48 49 50
0.00/0.03	v  -51 52 53 54 55 56 57 58 59 -60
0.00/0.03	v  61 62 63 -64 65 66 67 -68 -69 -70
0.00/0.03	v  -71 72 -73 74 75 -76 -77 78 -79 80
0.00/0.03	v  -81 -82 83 84 85 86 -87 -88 -89 90
0.00/0.03	v  91 -92 93 -94 -95 -96 97 98 -99 100
0.00/0.03	v  -101 -102 -103 -104 105 -106 -107 -108 109 -110
0.00/0.03	v  -111 -112 -113 -114 -115 -116 -117 118 119 -120
0.00/0.03	v  -121 -122 123 124 125 126 127 -128 129 -130
0.00/0.03	v  131 132 -133 -134 135 136 -137 138 139 -140
0.00/0.03	v  141 -142 -143 144 145 -146 -147 -148 149 -150
0.00/0.03	v  151 152 153 -154 -155 -156 -157 -158 -159 -160
0.00/0.03	v  -161 -162 -163 164 165 166 -167 -168 169 -170
0.00/0.03	v  171 172 173 174 175 176 177 -178 179 -180
0.00/0.03	v  -181 182 -183 -184 185 -186 187 -188 -189 -190
0.00/0.03	v  191 192 -193 -194 195 196 197 -198 -199 200
0.00/0.03	v  201 -202 -203 204 -205 206 -207 208 209 210
0.00/0.03	v  211 212 213 -214 215 -216 217 218 -219 220
0.00/0.03	v  221 -222 -223 224 -225 226 227 -228 -229 -230
0.00/0.03	v  -231 -232 233 -234 -235 236 237 238 239 240
0.00/0.03	v  -241 -242 243 -244 245 246 -247 248 249 250
0.00/0.03	v  251 -252 -253 254 -255 -256 -257 258 259 -260
0.00/0.03	v  -261 262 263 -264 -265 -266 267 268 -269 270
0.00/0.03	v  -271 -272 273 274 275 -276 -277 -278 -279 280
0.00/0.03	v  -281 -282 -283 284 -285 -286 -287 288 -289 -290
0.00/0.03	v  291 -292 293 294 -295 296 297 298 -299 -300
0.00/0.03	v  301 302 -303 304 -305 -306 307 -308 309 310
0.00/0.03	v  311 -312 313 314 315 -316 317 -318 319 320
0.00/0.03	v  321 -322 323 324 -325 -326 327 328 -329 330
0.00/0.03	v  331 -332 333 -334 335 -336 -337 -338 -339 340
0.00/0.03	v  341 -342 343 -344 345 346 -347 348 349 -350
0.00/0.03	v  -351 352 353 354 355 -356 -357 -358 -359 360
0.00/0.03	v  -361 -362 -363 364 365 -366 367 368 -369 -370
0.00/0.03	v  -371 -372 -373 374 -375 -376 -377 -378 379 380
0.00/0.03	v  381 382 -383 -384 385 386 -387 -388 -389 390
0.00/0.03	v  -391 392 -393 394 -395 396 397 398 399 400
0.00/0.03	v  -401 -402 -403 404 405 406 407 -408 409 410
0.00/0.03	v  -411 -412 413 -414 -415 416 417 -418 -419 -420
0.00/0.03	v  -421 422 423 424 425 -426 -427 428 -429 430
0.00/0.03	v  -431 -432 433 -434 -435 436 -437 -438 -439 440
0.00/0.03	v  -441 442 -443 444 -445 -446 447 -448 -449 450
0.00/0.03	v  451 -452 453 -454 455 -456 -457 -458 459 -460
0.00/0.03	v  461 -462 -463 464 465 466 -467 468 -469 -470
0.00/0.03	v  471 -472 -473 -474 475 -476 -477 478 479 480
0.00/0.03	v  -481 482 -483 -484 485 -486 487 488 489 -490
0.00/0.03	v  491 492 -493 494 -495 496 497 498 499 -500
0.00/0.03	v  501 502 503 -504 -505 506 507 508 -509 -510
0.00/0.03	v  511 512 513 -514 515 -516 517 -518 519 -520
0.00/0.03	v  -521 522 -523 -524 525 -526 -527 528 529 -530
0.00/0.03	v  531 -532 533 -534 -535 536 -537 -538 -539 -540
0.00/0.03	v  -541 542 543 -544 -545 546 547 548 -549 550
0.00/0.03	v  0
0.00/0.03	c SearchSteps = 51289
0.00/0.03	c SolveTime = 0.02

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-3162689-1301705253/watcher-3162689-1301705253 -o /tmp/evaluation-result-3162689-1301705253/solver-3162689-1301705253 -C 2400 -W 1300 -M 7680 sparrow2011 HOME/instance-3162689-1301705253.cnf 36009861 

running on 2 cores: 0,2

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 1.61 2.79 4/184 4775
/proc/meminfo: memFree=21707380/32951124 swapFree=67111528/67111528
[pid=4775] ppid=4773 vsize=12096 CPUtime=0 cores=0,2
/proc/4775/stat : 4775 (sparrow2011) R 4773 4775 3843 0 -1 4202496 239 0 0 0 0 0 0 0 25 0 1 0 282126254 12386304 178 33554432000 4194304 4568220 140736065449840 18446744073709551615 4308504 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/4775/statm: 3024 186 105 92 0 1408 0

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

Child status: 10
Real time (s): 0.0357779
CPU time (s): 0.029995
CPU user time (s): 0.029995
CPU system time (s): 0
CPU usage (%): 83.8367
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.029995
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= 445
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 0.002999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node108 at 2011-04-02 02:47:33
IDJOB=3162689
IDBENCH=82920
IDSOLVER=1573
FILE ID=node108/3162689-1301705253
RUNJOBID= node108-1301705253-4689
PBS_JOBID= 12840738
Free space on /tmp= 71168 MiB

SOLVER NAME= sparrow2011 sparrow2011_ubcsat1.2_2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S1114532273-035.SATISFIABLE.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3162689-1301705253/watcher-3162689-1301705253 -o /tmp/evaluation-result-3162689-1301705253/solver-3162689-1301705253 -C 2400 -W 1300 -M 7680  sparrow2011 HOME/instance-3162689-1301705253.cnf 36009861

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

MD5SUM BENCH= ff7e731e0657a2728f5ff73a4fd8bb2e
RANDOM SEED=36009861

node108.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		: 2666.820
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	: 5333.64
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		: 2666.820
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	: 5226.15
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		: 2666.820
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	: 5332.82
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		: 2666.820
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	: 5332.77
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		: 2666.820
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		: 2666.820
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		: 2666.820
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		: 2666.820
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:      21707520 kB
Buffers:        334912 kB
Cached:       10574272 kB
SwapCached:          0 kB
Active:        7362324 kB
Inactive:      3612720 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21707520 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            1176 kB
Writeback:           0 kB
AnonPages:       65448 kB
Mapped:          15224 kB
Slab:           206296 kB
PageTables:       4828 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   243600 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= 71168 MiB
End job on node108 at 2011-04-02 02:47:33