Trace number 3169958

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 0.05699 0.058215

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v550-c2343-S927210717-059.SATISFIABLE.cnf
MD5SUM7954e0b477e9d5cbd0a1f159f4b0eef6
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 

0.00/0.05	c 0 clauses are redundant and removed
0.00/0.05	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.05	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.05	c initial seed is 251521438
0.00/0.05	c try=1 flip j=125589 walk=111792 seed 251521455
0.00/0.05	c A solution is found
0.00/0.05	s SATISFIABLE
0.00/0.05	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 
0.00/0.05	v 0 
0.00/0.05	c Done (mycputime is 0 seconds)

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-3169958-1301705201/watcher-3169958-1301705201 -o /tmp/evaluation-result-3169958-1301705201/solver-3169958-1301705201 -C 2400 -W 1300 -M 7680 sattime+ HOME/instance-3169958-1301705201.cnf 251521325 

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: 2.00 2.96 3.55 5/189 10014
/proc/meminfo: memFree=22203340/32951124 swapFree=67111528/67111528
[pid=10014] ppid=10012 vsize=881028 CPUtime=0 cores=4,6
/proc/10014/stat : 10014 (sattime+) R 10012 10014 8728 0 -1 4202496 343 0 0 0 0 0 0 0 25 0 1 0 282122466 902172672 283 33554432000 4194304 4228340 140736996104112 18446744073709551615 4217007 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/10014/statm: 220257 283 116 9 0 217414 0

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

Child status: 10
Real time (s): 0.058215
CPU time (s): 0.05699
CPU user time (s): 0.055991
CPU system time (s): 0.000999
CPU usage (%): 97.8957
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.055991
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= 347
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= 0

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node102 at 2011-04-02 02:46:41
IDJOB=3169958
IDBENCH=82976
IDSOLVER=1579
FILE ID=node102/3169958-1301705201
RUNJOBID= node102-1301705193-9703
PBS_JOBID= 12840749
Free space on /tmp= 71608 MiB

SOLVER NAME= sattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S927210717-059.SATISFIABLE.cnf
COMMAND LINE= sattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3169958-1301705201/watcher-3169958-1301705201 -o /tmp/evaluation-result-3169958-1301705201/solver-3169958-1301705201 -C 2400 -W 1300 -M 7680  sattime+ HOME/instance-3169958-1301705201.cnf 251521325

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

MD5SUM BENCH= 7954e0b477e9d5cbd0a1f159f4b0eef6
RANDOM SEED=251521325

node102.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		: 2666.828
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	: 5333.65
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		: 2666.828
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		: 2666.828
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		: 2666.828
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		: 2666.828
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		: 2666.828
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		: 2666.828
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		: 2666.828
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:      22203496 kB
Buffers:        330436 kB
Cached:       10089552 kB
SwapCached:          0 kB
Active:        7458352 kB
Inactive:      3029328 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22203496 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           31924 kB
Writeback:           0 kB
AnonPages:       67292 kB
Mapped:          15340 kB
Slab:           196160 kB
PageTables:       5828 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  2883864 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= 71600 MiB
End job on node102 at 2011-04-02 02:46:41