Trace number 3427039

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 0.020995 0.022181

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S9113894-047.SATISFIABLE.cnf
MD5SUMc18e380499d0835f10de248aeec99cf2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.004999
Satisfiable
(Un)Satisfiability was proved
Number of variables500
Number of clauses2130
Sum of the clauses size6390
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32130
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 1599270331
0.00/0.02	c try=1 flip j=35429 walk=31000 seed 1599270348
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 
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: 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-3427039-1307647183/watcher-3427039-1307647183 -o /tmp/evaluation-result-3427039-1307647183/solver-3427039-1307647183 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3427039-1307647183.cnf 1599266874 

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: 3.77 3.96 3.86 3/177 25326
/proc/meminfo: memFree=31938248/32951124 swapFree=67050916/67111528
[pid=25326] ppid=25324 vsize=1185716 CPUtime=0 cores=0,2,4,6
/proc/25326/stat : 25326 (sattime2011) R 25324 25326 25204 0 -1 4202496 368 0 0 0 0 0 0 0 25 0 1 0 857134534 1214173184 310 33554432000 4194304 4230460 140734436609888 18446744073709551615 4224254 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/25326/statm: 296429 310 117 9 0 293586 0

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

Child status: 10
Real time (s): 0.022181
CPU time (s): 0.020995
CPU user time (s): 0.019996
CPU system time (s): 0.000999
CPU usage (%): 94.653
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.019996
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= 372
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= 2

runsolver used 0.000999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node146 at 2011-06-09 21:19:43
IDJOB=3427039
IDBENCH=83011
IDSOLVER=1924
FILE ID=node146/3427039-1307647183
RUNJOBID= node146-1307647182-25222
PBS_JOBID= 13549414
Free space on /tmp= 74120 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S9113894-047.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3427039-1307647183/watcher-3427039-1307647183 -o /tmp/evaluation-result-3427039-1307647183/solver-3427039-1307647183 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3427039-1307647183.cnf 1599266874

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

MD5SUM BENCH= c18e380499d0835f10de248aeec99cf2
RANDOM SEED=1599266874

node146.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		: 2666.830
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	: 5333.66
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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      31938552 kB
Buffers:        216820 kB
Cached:         568152 kB
SwapCached:      14540 kB
Active:         401140 kB
Inactive:       404736 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      31938552 kB
SwapTotal:    67111528 kB
SwapFree:     67050916 kB
Dirty:           15572 kB
Writeback:           0 kB
AnonPages:       17508 kB
Mapped:           9420 kB
Slab:           139572 kB
PageTables:       4256 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  1389676 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= 74112 MiB
End job on node146 at 2011-06-09 21:19:43