Trace number 3162482

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 0.202968 0.203103

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S1263625223-038.SATISFIABLE.cnf
MD5SUMbcd207ee685856d0ca572e80c3354408
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.016996
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 

0.19/0.20	c 
0.19/0.20	c UBCSAT version 1.2-sparrow2011 (based on BETA 1.2-b10) SAT11 Sparrow Build
0.19/0.20	c 
0.19/0.20	c http://www.satlib.org/ubcsat
0.19/0.20	c 
0.19/0.20	c ubcsat -h for help
0.19/0.20	c 
0.19/0.20	s SATISFIABLE
0.19/0.20	v  -1 -2 -3 -4 5 -6 -7 -8 -9 10
0.19/0.20	v  -11 -12 13 14 15 16 17 -18 -19 20
0.19/0.20	v  -21 -22 -23 24 25 26 27 28 29 30
0.19/0.20	v  -31 -32 33 34 -35 36 -37 -38 39 40
0.19/0.20	v  41 42 43 44 45 46 47 -48 49 -50
0.19/0.20	v  51 -52 -53 54 -55 -56 -57 58 59 -60
0.19/0.20	v  -61 62 63 -64 -65 66 -67 68 -69 70
0.19/0.20	v  71 72 73 74 75 76 77 -78 79 80
0.19/0.20	v  81 82 -83 84 -85 86 87 -88 89 90
0.19/0.20	v  -91 -92 -93 94 95 -96 -97 98 -99 100
0.19/0.20	v  -101 -102 103 -104 -105 106 107 -108 109 -110
0.19/0.20	v  -111 112 -113 -114 115 -116 117 118 119 -120
0.19/0.20	v  -121 -122 123 124 125 126 127 128 129 -130
0.19/0.20	v  131 132 133 -134 135 136 137 -138 139 140
0.19/0.20	v  -141 142 143 -144 -145 146 147 -148 149 150
0.19/0.20	v  -151 152 -153 -154 -155 156 157 -158 -159 -160
0.19/0.20	v  -161 162 -163 -164 165 -166 167 168 169 170
0.19/0.20	v  171 -172 -173 174 -175 -176 -177 -178 -179 -180
0.19/0.20	v  181 -182 -183 184 -185 -186 187 -188 -189 190
0.19/0.20	v  191 -192 193 -194 -195 -196 197 198 199 -200
0.19/0.20	v  -201 202 -203 -204 -205 206 -207 -208 209 210
0.19/0.20	v  211 -212 213 -214 215 216 217 218 219 220
0.19/0.20	v  221 222 -223 -224 225 -226 227 228 229 -230
0.19/0.20	v  231 232 -233 -234 235 -236 237 -238 239 -240
0.19/0.20	v  -241 242 243 -244 -245 -246 -247 248 249 -250
0.19/0.20	v  -251 252 253 -254 255 -256 257 258 259 260
0.19/0.20	v  261 -262 -263 -264 265 -266 267 268 -269 270
0.19/0.20	v  -271 272 -273 274 275 -276 277 -278 -279 280
0.19/0.20	v  -281 282 -283 -284 285 -286 287 -288 289 -290
0.19/0.20	v  291 -292 293 -294 295 296 -297 298 299 300
0.19/0.20	v  301 302 303 -304 -305 -306 -307 308 309 310
0.19/0.20	v  311 -312 -313 314 315 316 -317 318 319 -320
0.19/0.20	v  321 322 -323 324 325 326 -327 328 -329 -330
0.19/0.20	v  -331 -332 -333 334 335 -336 337 338 339 340
0.19/0.20	v  -341 342 343 344 -345 -346 -347 348 -349 350
0.19/0.20	v  351 352 -353 -354 355 -356 357 358 -359 -360
0.19/0.20	v  -361 362 363 364 365 -366 367 368 -369 -370
0.19/0.20	v  -371 -372 -373 -374 375 -376 -377 378 -379 -380
0.19/0.20	v  -381 382 -383 -384 -385 -386 387 388 -389 390
0.19/0.20	v  -391 -392 -393 -394 -395 396 -397 398 399 400
0.19/0.20	v  401 402 403 404 405 -406 407 -408 409 -410
0.19/0.20	v  -411 -412 413 -414 -415 416 417 418 419 -420
0.19/0.20	v  421 -422 -423 -424 425 426 427 -428 -429 430
0.19/0.20	v  431 -432 -433 434 435 436 437 -438 439 -440
0.19/0.20	v  -441 442 443 -444 445 446 -447 448 449 -450
0.19/0.20	v  451 452 -453 -454 -455 456 457 458 -459 460
0.19/0.20	v  461 -462 463 -464 465 466 -467 -468 -469 470
0.19/0.20	v  -471 -472 -473 474 -475 -476 -477 -478 -479 480
0.19/0.20	v  481 -482 483 484 485 -486 -487 488 489 490
0.19/0.20	v  491 492 -493 494 495 496 -497 498 -499 500
0.19/0.20	v  0
0.19/0.20	c SearchSteps = 397587
0.19/0.20	c SolveTime = 0.2

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-3162482-1301699592/watcher-3162482-1301699592 -o /tmp/evaluation-result-3162482-1301699592/solver-3162482-1301699592 -C 2400 -W 1300 -M 7680 sparrow2011 HOME/instance-3162482-1301699592.cnf 999972040 

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: 4.06 4.00 3.70 4/189 16554
/proc/meminfo: memFree=20523748/32951124 swapFree=67111524/67111528
[pid=16554] ppid=16552 vsize=12228 CPUtime=0 cores=1,3
/proc/16554/stat : 16554 (sparrow2011) R 16552 16554 16176 0 -1 4202496 422 0 0 0 0 0 0 0 25 0 1 0 360189648 12521472 360 33554432000 4194304 4568220 140737425186272 18446744073709551615 4240054 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/16554/statm: 3057 360 173 92 0 1441 0

[startup+0.068443 s]
/proc/loadavg: 4.06 4.00 3.70 4/189 16554
/proc/meminfo: memFree=20523748/32951124 swapFree=67111524/67111528
[pid=16554] ppid=16552 vsize=12228 CPUtime=0.06 cores=1,3
/proc/16554/stat : 16554 (sparrow2011) R 16552 16554 16176 0 -1 4202496 422 0 0 0 6 0 0 0 25 0 1 0 360189648 12521472 360 33554432000 4194304 4568220 140737425186272 18446744073709551615 4239604 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/16554/statm: 3057 360 173 92 0 1441 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 12228

[startup+0.100439 s]
/proc/loadavg: 4.06 4.00 3.70 4/189 16554
/proc/meminfo: memFree=20523748/32951124 swapFree=67111524/67111528
[pid=16554] ppid=16552 vsize=12228 CPUtime=0.09 cores=1,3
/proc/16554/stat : 16554 (sparrow2011) R 16552 16554 16176 0 -1 4202496 422 0 0 0 9 0 0 0 25 0 1 0 360189648 12521472 360 33554432000 4194304 4568220 140737425186272 18446744073709551615 4239515 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/16554/statm: 3057 360 173 92 0 1441 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12228

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

[startup+0.200421 s]
/proc/loadavg: 4.06 4.00 3.70 4/189 16554
/proc/meminfo: memFree=20523748/32951124 swapFree=67111524/67111528
[pid=16554] ppid=16552 vsize=12228 CPUtime=0.19 cores=1,3
/proc/16554/stat : 16554 (sparrow2011) R 16552 16554 16176 0 -1 4202496 422 0 0 0 19 0 0 0 25 0 1 0 360189648 12521472 360 33554432000 4194304 4568220 140737425186272 18446744073709551615 4239482 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/16554/statm: 3057 360 173 92 0 1441 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 12228

Child status: 10
Real time (s): 0.203103
CPU time (s): 0.202968
CPU user time (s): 0.201969
CPU system time (s): 0.000999
CPU usage (%): 99.9335
Max. virtual memory (cumulated for all children) (KiB): 12228

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.201969
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= 440
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= 3

runsolver used 0.001999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node111 at 2011-04-02 01:13:12
IDJOB=3162482
IDBENCH=82713
IDSOLVER=1573
FILE ID=node111/3162482-1301699592
RUNJOBID= node111-1301698272-16196
PBS_JOBID= 12840739
Free space on /tmp= 70852 MiB

SOLVER NAME= sparrow2011 sparrow2011_ubcsat1.2_2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S1263625223-038.SATISFIABLE.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3162482-1301699592/watcher-3162482-1301699592 -o /tmp/evaluation-result-3162482-1301699592/solver-3162482-1301699592 -C 2400 -W 1300 -M 7680  sparrow2011 HOME/instance-3162482-1301699592.cnf 999972040

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

MD5SUM BENCH= bcd207ee685856d0ca572e80c3354408
RANDOM SEED=999972040

node111.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		: 2666.849
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	: 5333.69
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		: 2666.849
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	: 5428.12
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		: 2666.849
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		: 2666.849
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		: 2666.849
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		: 2666.849
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		: 2666.849
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	: 5332.67
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		: 2666.849
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:     32951124 kB
MemFree:      20524028 kB
Buffers:        343352 kB
Cached:       11714832 kB
SwapCached:          4 kB
Active:        7530704 kB
Inactive:      4596632 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20524028 kB
SwapTotal:    67111528 kB
SwapFree:     67111524 kB
Dirty:            2412 kB
Writeback:           0 kB
AnonPages:       68896 kB
Mapped:          15800 kB
Slab:           237112 kB
PageTables:       5300 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   269324 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= 70852 MiB
End job on node111 at 2011-04-02 01:13:12