Trace number 3220711

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 0.079987 0.0804819

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S481747904-003.SATISFIABLE.cnf
MD5SUM1e904bd81be11487c7596e10e18e4cd6
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.024996
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 

0.01/0.08	c 
0.01/0.08	c UBCSAT version 1.2-sparrow2011 (based on BETA 1.2-b10) SAT11 Sparrow Build
0.01/0.08	c 
0.01/0.08	c http://www.satlib.org/ubcsat
0.01/0.08	c 
0.01/0.08	c ubcsat -h for help
0.01/0.08	c 
0.01/0.08	s SATISFIABLE
0.01/0.08	v  1 -2 -3 -4 -5 -6 -7 -8 9 -10
0.01/0.08	v  11 12 -13 -14 15 -16 -17 18 -19 20
0.01/0.08	v  21 -22 -23 -24 25 -26 -27 -28 29 30
0.01/0.08	v  -31 32 -33 34 -35 -36 37 -38 39 40
0.01/0.08	v  41 -42 43 -44 -45 -46 47 -48 -49 -50
0.01/0.08	v  51 52 53 54 55 -56 -57 -58 59 -60
0.01/0.08	v  -61 -62 -63 -64 -65 66 -67 68 69 -70
0.01/0.08	v  71 -72 73 74 -75 76 -77 78 79 80
0.01/0.08	v  81 -82 83 84 -85 -86 -87 -88 -89 90
0.01/0.08	v  91 -92 -93 -94 -95 -96 97 -98 99 100
0.01/0.08	v  101 -102 103 -104 -105 -106 107 -108 109 -110
0.01/0.08	v  111 -112 -113 -114 -115 116 -117 -118 119 120
0.01/0.08	v  121 122 123 -124 -125 126 127 -128 129 -130
0.01/0.08	v  -131 -132 -133 134 135 136 137 138 -139 -140
0.01/0.08	v  -141 -142 143 144 145 -146 147 -148 -149 -150
0.01/0.08	v  -151 152 -153 154 -155 -156 -157 -158 -159 160
0.01/0.08	v  161 -162 -163 -164 165 -166 167 168 -169 170
0.01/0.08	v  -171 -172 173 174 -175 176 177 -178 -179 180
0.01/0.08	v  -181 -182 183 -184 -185 -186 -187 -188 -189 -190
0.01/0.08	v  -191 -192 -193 -194 -195 196 -197 -198 199 -200
0.01/0.08	v  201 202 -203 204 -205 206 207 -208 209 -210
0.01/0.08	v  211 -212 -213 -214 -215 -216 217 218 219 -220
0.01/0.08	v  -221 222 -223 224 -225 226 -227 228 229 -230
0.01/0.08	v  -231 232 233 -234 -235 236 237 -238 239 240
0.01/0.08	v  241 -242 -243 -244 245 -246 -247 -248 -249 250
0.01/0.08	v  251 252 -253 -254 -255 -256 257 258 -259 260
0.01/0.08	v  -261 262 263 -264 265 266 267 -268 269 -270
0.01/0.08	v  -271 272 -273 274 -275 -276 277 278 -279 -280
0.01/0.08	v  281 -282 283 284 285 -286 287 -288 -289 -290
0.01/0.08	v  -291 292 293 -294 295 -296 -297 298 299 300
0.01/0.08	v  -301 -302 -303 -304 -305 306 -307 -308 309 310
0.01/0.08	v  311 -312 313 314 -315 316 -317 -318 -319 320
0.01/0.08	v  -321 322 323 -324 325 326 -327 328 329 -330
0.01/0.08	v  331 -332 333 -334 -335 -336 -337 338 339 -340
0.01/0.08	v  341 -342 343 -344 345 346 347 -348 -349 -350
0.01/0.08	v  351 352 353 354 -355 -356 -357 -358 359 360
0.01/0.08	v  -361 -362 -363 364 365 -366 367 -368 369 -370
0.01/0.08	v  371 372 373 374 375 -376 -377 -378 379 380
0.01/0.08	v  -381 382 383 -384 385 -386 387 388 389 -390
0.01/0.08	v  391 -392 393 -394 -395 -396 397 398 -399 400
0.01/0.08	v  -401 -402 -403 -404 -405 -406 407 -408 -409 -410
0.01/0.08	v  411 -412 -413 -414 415 -416 417 -418 -419 -420
0.01/0.08	v  421 -422 -423 424 425 426 427 428 429 -430
0.01/0.08	v  431 432 -433 -434 -435 436 437 -438 439 -440
0.01/0.08	v  -441 -442 -443 -444 445 446 -447 448 -449 450
0.01/0.08	v  451 452 453 -454 455 -456 457 -458 -459 460
0.01/0.08	v  -461 462 -463 464 -465 -466 -467 468 469 470
0.01/0.08	v  -471 -472 473 474 475 -476 -477 -478 479 -480
0.01/0.08	v  481 482 -483 484 -485 486 487 488 489 490
0.01/0.08	v  -491 -492 493 494 -495 -496 -497 -498 499 -500
0.01/0.08	v  0
0.01/0.08	c SearchSteps = 151738
0.01/0.08	c SolveTime = 0.07

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-3220711-1303274286/watcher-3220711-1303274286 -o /tmp/evaluation-result-3220711-1303274286/solver-3220711-1303274286 -C 5000 -W 5000 -M 15500 sparrow2011 HOME/instance-3220711-1303274286.cnf 210797198 

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 2.00 1.98 2/177 18435
/proc/meminfo: memFree=16306568/32951124 swapFree=67111524/67111528
[pid=18435] ppid=18433 vsize=12228 CPUtime=0 cores=1,3,5,7
/proc/18435/stat : 18435 (sparrow2011) R 18433 18435 17096 0 -1 4202496 419 0 0 0 0 0 0 0 25 0 1 0 439026604 12521472 359 33554432000 4194304 4568220 140734029890048 18446744073709551615 4240153 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/18435/statm: 3057 359 173 92 0 1441 0

[startup+0.0199371 s]
/proc/loadavg: 2.00 2.00 1.98 2/177 18435
/proc/meminfo: memFree=16306568/32951124 swapFree=67111524/67111528
[pid=18435] ppid=18433 vsize=12228 CPUtime=0.01 cores=1,3,5,7
/proc/18435/stat : 18435 (sparrow2011) R 18433 18435 17096 0 -1 4202496 419 0 0 0 1 0 0 0 25 0 1 0 439026604 12521472 359 33554432000 4194304 4568220 140734029890048 18446744073709551615 4240195 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/18435/statm: 3057 359 173 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+0.0199371 s]
/proc/loadavg: 2.00 2.00 1.98 2/177 18435
/proc/meminfo: memFree=16306568/32951124 swapFree=67111524/67111528
[pid=18435] ppid=18433 vsize=12228 CPUtime=0.01 cores=1,3,5,7
/proc/18435/stat : 18435 (sparrow2011) R 18433 18435 17096 0 -1 4202496 419 0 0 0 1 0 0 0 25 0 1 0 439026604 12521472 359 33554432000 4194304 4568220 140734029890048 18446744073709551615 4240195 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/18435/statm: 3057 359 173 92 0 1441 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 12228

Child status: 10
Real time (s): 0.0804819
CPU time (s): 0.079987
CPU user time (s): 0.079987
CPU system time (s): 0
CPU usage (%): 99.3851
Max. virtual memory (cumulated for all children) (KiB): 12228

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.079987
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= 437
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 node136 at 2011-04-20 06:38:06
IDJOB=3220711
IDBENCH=82802
IDSOLVER=1636
FILE ID=node136/3220711-1303274286
RUNJOBID= node136-1303259272-17115
PBS_JOBID= 13049496
Free space on /tmp= 72004 MiB

SOLVER NAME= sparrow2011 sparrow2011_ubcsat1.2_2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S481747904-003.SATISFIABLE.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3220711-1303274286/watcher-3220711-1303274286 -o /tmp/evaluation-result-3220711-1303274286/solver-3220711-1303274286 -C 5000 -W 5000 -M 15500  sparrow2011 HOME/instance-3220711-1303274286.cnf 210797198

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

MD5SUM BENCH= 1e904bd81be11487c7596e10e18e4cd6
RANDOM SEED=210797198

node136.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		: 2666.809
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	: 5333.61
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		: 2666.809
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		: 2666.809
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		: 2666.809
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	: 5332.76
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		: 2666.809
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		: 2666.809
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		: 2666.809
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		: 2666.809
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      16306832 kB
Buffers:        636040 kB
Cached:       15593944 kB
SwapCached:          4 kB
Active:        8023048 kB
Inactive:      8272628 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      16306832 kB
SwapTotal:    67111528 kB
SwapFree:     67111524 kB
Dirty:             408 kB
Writeback:           0 kB
AnonPages:       65196 kB
Mapped:          15292 kB
Slab:           286060 kB
PageTables:       4240 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   219484 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= 72004 MiB
End job on node136 at 2011-04-20 06:38:07