Trace number 3221755

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 0.004998 0.00598106

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 benchmark0.004998
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 

0.00/0.00	c 
0.00/0.00	c UBCSAT version 1.2-sparrow2011 (based on BETA 1.2-b10) SAT11 Sparrow Build
0.00/0.00	c 
0.00/0.00	c http://www.satlib.org/ubcsat
0.00/0.00	c 
0.00/0.00	c ubcsat -h for help
0.00/0.00	c 
0.00/0.00	s SATISFIABLE
0.00/0.00	v  -1 -2 -3 4 5 -6 7 -8 9 10
0.00/0.00	v  11 -12 13 -14 15 -16 17 18 -19 -20
0.00/0.00	v  -21 22 -23 24 -25 26 -27 28 29 30
0.00/0.00	v  -31 32 -33 -34 -35 -36 37 38 -39 -40
0.00/0.00	v  41 42 43 -44 -45 -46 -47 -48 -49 50
0.00/0.00	v  -51 52 53 -54 55 56 57 -58 -59 60
0.00/0.00	v  -61 62 -63 -64 65 -66 -67 -68 -69 -70
0.00/0.00	v  -71 72 -73 -74 -75 -76 77 -78 -79 -80
0.00/0.00	v  81 82 -83 -84 85 86 87 88 89 -90
0.00/0.00	v  -91 92 -93 -94 95 96 -97 98 -99 -100
0.00/0.00	v  -101 -102 103 -104 -105 106 107 108 109 110
0.00/0.00	v  -111 -112 -113 -114 115 116 -117 -118 -119 120
0.00/0.00	v  121 -122 -123 124 125 126 127 128 -129 -130
0.00/0.00	v  -131 132 133 -134 135 -136 137 -138 139 -140
0.00/0.00	v  -141 142 143 -144 145 146 147 148 -149 150
0.00/0.00	v  -151 -152 -153 -154 155 156 157 -158 159 160
0.00/0.00	v  -161 -162 -163 -164 165 166 167 -168 -169 -170
0.00/0.00	v  -171 -172 -173 -174 175 176 -177 178 -179 180
0.00/0.00	v  181 182 183 184 185 -186 -187 -188 -189 190
0.00/0.00	v  191 -192 193 194 -195 196 197 198 -199 200
0.00/0.00	v  201 -202 -203 204 205 206 207 208 -209 -210
0.00/0.00	v  -211 212 213 -214 -215 216 217 -218 -219 220
0.00/0.00	v  221 222 -223 -224 225 -226 227 228 -229 230
0.00/0.00	v  231 232 233 234 -235 236 -237 238 239 240
0.00/0.00	v  241 242 -243 -244 245 246 -247 248 -249 -250
0.00/0.00	v  -251 -252 -253 -254 -255 -256 -257 258 -259 260
0.00/0.00	v  261 262 -263 264 265 -266 267 -268 269 -270
0.00/0.00	v  -271 -272 273 -274 275 -276 277 278 -279 280
0.00/0.00	v  281 282 -283 -284 285 286 -287 288 -289 290
0.00/0.00	v  -291 292 -293 294 -295 296 297 298 -299 -300
0.00/0.00	v  301 -302 -303 304 305 -306 307 308 -309 -310
0.00/0.00	v  -311 -312 -313 314 -315 -316 -317 318 319 -320
0.00/0.00	v  -321 322 323 324 -325 -326 327 -328 -329 -330
0.00/0.00	v  -331 332 -333 -334 -335 -336 337 -338 339 340
0.00/0.00	v  341 -342 -343 -344 345 -346 -347 -348 349 -350
0.00/0.00	v  351 -352 353 354 -355 356 357 -358 -359 360
0.00/0.00	v  -361 -362 363 -364 -365 -366 367 -368 -369 370
0.00/0.00	v  -371 -372 -373 374 -375 -376 -377 378 379 380
0.00/0.00	v  381 382 383 384 385 -386 -387 388 389 390
0.00/0.00	v  -391 -392 -393 -394 395 396 397 -398 399 400
0.00/0.00	v  -401 402 403 -404 405 -406 407 -408 -409 -410
0.00/0.00	v  -411 -412 413 -414 415 -416 -417 418 -419 -420
0.00/0.00	v  421 -422 423 -424 -425 -426 427 -428 -429 430
0.00/0.00	v  -431 432 433 434 -435 436 437 -438 -439 -440
0.00/0.00	v  441 -442 -443 -444 -445 -446 447 -448 449 -450
0.00/0.00	v  451 452 453 454 455 456 457 458 -459 460
0.00/0.00	v  -461 462 -463 464 465 466 -467 -468 469 470
0.00/0.00	v  471 -472 473 -474 -475 476 477 478 -479 480
0.00/0.00	v  481 -482 -483 484 -485 -486 -487 -488 -489 490
0.00/0.00	v  -491 -492 493 494 -495 -496 -497 -498 499 500
0.00/0.00	v  501 -502 503 -504 -505 506 -507 -508 -509 -510
0.00/0.00	v  -511 512 -513 -514 -515 516 -517 -518 519 -520
0.00/0.00	v  -521 522 -523 524 -525 -526 527 528 529 -530
0.00/0.00	v  531 -532 -533 -534 -535 536 -537 538 539 540
0.00/0.00	v  541 542 -543 -544 -545 546 -547 -548 549 550
0.00/0.00	v  0
0.00/0.00	c SearchSteps = 4088
0.00/0.00	c SolveTime = 0

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

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-3221755-1303298736/watcher-3221755-1303298736 -o /tmp/evaluation-result-3221755-1303298736/solver-3221755-1303298736 -C 5000 -W 5000 -M 15500 sparrow2011 HOME/instance-3221755-1303298736.cnf 1475456299 

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): 5000 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: 2.00 2.01 2.00 2/181 25972
/proc/meminfo: memFree=13361776/32951124 swapFree=67111528/67111528
[pid=25972] ppid=25970 vsize=0 CPUtime=0 cores=1,3,5,7
/proc/25972/stat : 25972 (sparrow2011) Z 25970 25972 25595 0 -1 4202524 441 0 0 0 0 0 0 0 25 0 1 0 441471744 0 0 33554432000 0 0 0 0 0 0 0 4096 0 18446744073709551615 0 0 17 1 0 0 0
/proc/25972/statm: 0 0 0 0 0 0 0

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

Child status: 10
Real time (s): 0.00598106
CPU time (s): 0.004998
CPU user time (s): 0.003999
CPU system time (s): 0.000999
CPU usage (%): 83.5638
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.003999
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= 441
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 0.000999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node132 at 2011-04-20 13:25:36
IDJOB=3221755
IDBENCH=82976
IDSOLVER=1636
FILE ID=node132/3221755-1303298736
RUNJOBID= node132-1303293733-25614
PBS_JOBID= 13049631
Free space on /tmp= 72924 MiB

SOLVER NAME= sparrow2011 sparrow2011_ubcsat1.2_2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S927210717-059.SATISFIABLE.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3221755-1303298736/watcher-3221755-1303298736 -o /tmp/evaluation-result-3221755-1303298736/solver-3221755-1303298736 -C 5000 -W 5000 -M 15500  sparrow2011 HOME/instance-3221755-1303298736.cnf 1475456299

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

MD5SUM BENCH= 7954e0b477e9d5cbd0a1f159f4b0eef6
RANDOM SEED=1475456299

node132.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		: 2666.833
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		: 2666.833
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	: 5332.74
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		: 2666.833
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	: 5332.76
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		: 2666.833
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		: 2666.833
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	: 5332.77
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		: 2666.833
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	: 5332.67
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		: 2666.833
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		: 2666.833
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:      13362056 kB
Buffers:        697952 kB
Cached:       18458692 kB
SwapCached:          0 kB
Active:        7753252 kB
Inactive:     11470180 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      13362056 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             880 kB
Writeback:           4 kB
AnonPages:       65788 kB
Mapped:          15316 kB
Slab:           304904 kB
PageTables:       3876 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   214576 kB
VmallocTotal: 34359738367 kB
VmallocUsed:     33868 kB
VmallocChunk: 34359703231 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 72924 MiB
End job on node132 at 2011-04-20 13:25:36