Trace number 3162745

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 0.014997 0.019366

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 

0.01/0.01	c 
0.01/0.01	c UBCSAT version 1.2-sparrow2011 (based on BETA 1.2-b10) SAT11 Sparrow Build
0.01/0.01	c 
0.01/0.01	c http://www.satlib.org/ubcsat
0.01/0.01	c 
0.01/0.01	c ubcsat -h for help
0.01/0.01	c 
0.01/0.01	s SATISFIABLE
0.01/0.01	v  -1 -2 -3 4 5 -6 7 -8 9 10
0.01/0.01	v  11 -12 13 -14 15 -16 17 18 -19 -20
0.01/0.01	v  21 22 23 24 -25 26 -27 28 -29 -30
0.01/0.01	v  -31 32 -33 -34 -35 -36 37 -38 -39 -40
0.01/0.01	v  41 42 43 -44 45 46 -47 -48 -49 50
0.01/0.01	v  -51 52 53 54 55 56 57 -58 -59 60
0.01/0.01	v  -61 62 -63 -64 65 66 -67 68 -69 -70
0.01/0.01	v  71 -72 73 -74 75 -76 77 -78 -79 80
0.01/0.01	v  81 82 -83 -84 85 86 87 88 89 -90
0.01/0.01	v  91 -92 -93 -94 95 96 -97 98 -99 100
0.01/0.01	v  -101 -102 103 -104 -105 106 107 108 109 110
0.01/0.01	v  111 -112 113 -114 115 -116 -117 -118 -119 120
0.01/0.01	v  121 -122 -123 124 125 126 127 128 -129 -130
0.01/0.01	v  -131 132 133 134 -135 -136 137 -138 -139 -140
0.01/0.01	v  -141 142 143 -144 145 146 147 148 -149 150
0.01/0.01	v  -151 -152 -153 -154 155 156 157 -158 -159 -160
0.01/0.01	v  161 -162 -163 164 165 166 167 168 -169 -170
0.01/0.01	v  -171 -172 173 174 175 176 177 178 179 180
0.01/0.01	v  181 182 183 184 185 -186 -187 188 -189 -190
0.01/0.01	v  191 -192 193 194 -195 196 197 198 -199 200
0.01/0.01	v  201 -202 -203 -204 -205 206 207 208 209 210
0.01/0.01	v  -211 212 213 -214 -215 216 217 -218 219 220
0.01/0.01	v  221 222 -223 -224 225 -226 227 228 -229 230
0.01/0.01	v  231 232 233 234 -235 -236 -237 -238 239 240
0.01/0.01	v  241 242 243 244 245 246 247 -248 249 -250
0.01/0.01	v  251 -252 -253 -254 -255 -256 -257 258 -259 260
0.01/0.01	v  -261 -262 263 264 265 -266 267 -268 -269 -270
0.01/0.01	v  -271 -272 273 -274 275 276 277 278 -279 280
0.01/0.01	v  281 282 -283 -284 285 286 -287 288 -289 290
0.01/0.01	v  -291 -292 -293 294 -295 296 297 298 -299 -300
0.01/0.01	v  -301 -302 -303 304 305 -306 307 308 309 -310
0.01/0.01	v  311 -312 -313 314 -315 -316 -317 318 -319 -320
0.01/0.01	v  -321 322 323 324 325 -326 327 -328 -329 330
0.01/0.01	v  -331 332 -333 334 335 -336 -337 -338 339 -340
0.01/0.01	v  -341 342 -343 -344 345 -346 -347 348 349 -350
0.01/0.01	v  351 -352 353 354 -355 356 357 -358 -359 360
0.01/0.01	v  -361 362 363 -364 -365 -366 367 -368 -369 370
0.01/0.01	v  -371 -372 -373 374 -375 376 377 378 379 380
0.01/0.01	v  381 382 383 384 385 -386 -387 388 389 390
0.01/0.01	v  -391 -392 -393 -394 395 396 397 398 399 400
0.01/0.01	v  -401 402 403 -404 405 406 407 -408 -409 -410
0.01/0.01	v  411 -412 413 -414 415 -416 -417 418 -419 -420
0.01/0.01	v  421 -422 -423 -424 425 -426 427 -428 -429 430
0.01/0.01	v  -431 432 433 434 -435 436 437 -438 -439 -440
0.01/0.01	v  441 -442 -443 -444 -445 -446 447 -448 449 450
0.01/0.01	v  -451 -452 453 454 455 456 457 -458 -459 460
0.01/0.01	v  -461 462 -463 464 465 466 -467 -468 469 -470
0.01/0.01	v  471 472 473 -474 -475 476 477 478 -479 -480
0.01/0.01	v  -481 -482 -483 484 485 -486 -487 -488 -489 -490
0.01/0.01	v  -491 -492 493 494 -495 -496 497 498 499 500
0.01/0.01	v  -501 -502 503 504 505 506 -507 508 -509 -510
0.01/0.01	v  511 512 -513 -514 -515 -516 517 -518 519 520
0.01/0.01	v  -521 -522 523 524 -525 -526 527 528 529 -530
0.01/0.01	v  531 -532 -533 -534 -535 536 537 -538 539 540
0.01/0.01	v  541 542 543 -544 545 546 -547 -548 549 550
0.01/0.01	v  0
0.01/0.01	c SearchSteps = 25470
0.01/0.01	c SolveTime = 0.01

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-3162745-1301708530/watcher-3162745-1301708530 -o /tmp/evaluation-result-3162745-1301708530/solver-3162745-1301708530 -C 2400 -W 1300 -M 7680 sparrow2011 HOME/instance-3162745-1301708530.cnf 815433015 

running on 2 cores: 1,3

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: 4.02 3.99 3.67 5/187 6016
/proc/meminfo: memFree=21851052/32951132 swapFree=67111528/67111528
[pid=6016] ppid=6014 vsize=12228 CPUtime=0 cores=1,3
/proc/6016/stat : 6016 (sparrow2011) R 6014 6016 5593 0 -1 4202496 387 0 0 0 0 0 0 0 25 0 1 0 282452621 12521472 326 33554432000 4194304 4568220 140733725485440 18446744073709551615 210646840281 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/6016/statm: 3057 336 165 92 0 1441 0

[startup+0.017704 s]
/proc/loadavg: 4.02 3.99 3.67 5/187 6016
/proc/meminfo: memFree=21851052/32951132 swapFree=67111528/67111528
[pid=6016] ppid=6014 vsize=12228 CPUtime=0.01 cores=1,3
/proc/6016/stat : 6016 (sparrow2011) R 6014 6016 5593 0 -1 4202496 426 0 0 0 1 0 0 0 25 0 1 0 282452621 12521472 365 33554432000 4194304 4568220 140733725485440 18446744073709551615 4239952 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/6016/statm: 3057 365 173 92 0 1441 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 12228

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

[startup+0.017704 s]
/proc/loadavg: 4.02 3.99 3.67 5/187 6016
/proc/meminfo: memFree=21851052/32951132 swapFree=67111528/67111528
[pid=6016] ppid=6014 vsize=12228 CPUtime=0.01 cores=1,3
/proc/6016/stat : 6016 (sparrow2011) R 6014 6016 5593 0 -1 4202496 426 0 0 0 1 0 0 0 25 0 1 0 282452621 12521472 365 33554432000 4194304 4568220 140733725485440 18446744073709551615 4239952 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/6016/statm: 3057 365 173 92 0 1441 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 12228

Child status: 10
Real time (s): 0.019366
CPU time (s): 0.014997
CPU user time (s): 0.014997
CPU system time (s): 0
CPU usage (%): 77.4399
Max. virtual memory (cumulated for all children) (KiB): 12228

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.014997
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= 444
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 node129 at 2011-04-02 03:42:10
IDJOB=3162745
IDBENCH=82976
IDSOLVER=1573
FILE ID=node129/3162745-1301708530
RUNJOBID= node129-1301707227-5613
PBS_JOBID= 12840830
Free space on /tmp= 71916 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-3162745-1301708530/watcher-3162745-1301708530 -o /tmp/evaluation-result-3162745-1301708530/solver-3162745-1301708530 -C 2400 -W 1300 -M 7680  sparrow2011 HOME/instance-3162745-1301708530.cnf 815433015

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

MD5SUM BENCH= 7954e0b477e9d5cbd0a1f159f4b0eef6
RANDOM SEED=815433015

node129.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		: 2666.831
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		: 2666.831
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	: 5332.83
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		: 2666.831
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		: 2666.831
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	: 5332.82
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		: 2666.831
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	: 5332.74
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		: 2666.831
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	: 5332.83
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		: 2666.831
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		: 2666.831
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:     32951132 kB
MemFree:      21851208 kB
Buffers:        340832 kB
Cached:       10439300 kB
SwapCached:          0 kB
Active:        7181396 kB
Inactive:      3668708 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      21851208 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            1636 kB
Writeback:          76 kB
AnonPages:       69408 kB
Mapped:          15760 kB
Slab:           188692 kB
PageTables:       4548 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:   269580 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71916 MiB
End job on node129 at 2011-04-02 03:42:10