Trace number 3221155

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 0.410937 0.413312

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v550-c2343-S2058622508-076.SATISFIABLE.cnf
MD5SUMc1412f649cda4900c9606cccc6bec4a4
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.023996
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 

0.39/0.41	c 
0.39/0.41	c UBCSAT version 1.2-sparrow2011 (based on BETA 1.2-b10) SAT11 Sparrow Build
0.39/0.41	c 
0.39/0.41	c http://www.satlib.org/ubcsat
0.39/0.41	c 
0.39/0.41	c ubcsat -h for help
0.39/0.41	c 
0.39/0.41	s SATISFIABLE
0.39/0.41	v  -1 -2 3 -4 5 -6 7 8 -9 -10
0.39/0.41	v  11 -12 13 -14 -15 16 -17 18 -19 20
0.39/0.41	v  21 -22 -23 -24 -25 -26 -27 -28 -29 30
0.39/0.41	v  31 -32 -33 -34 35 36 -37 -38 -39 40
0.39/0.41	v  41 -42 43 -44 -45 46 47 48 -49 50
0.39/0.41	v  51 52 -53 -54 -55 -56 57 -58 -59 -60
0.39/0.41	v  -61 -62 63 -64 65 -66 -67 68 -69 -70
0.39/0.41	v  71 72 -73 -74 75 76 77 -78 -79 -80
0.39/0.41	v  -81 -82 -83 -84 -85 86 87 -88 89 90
0.39/0.41	v  91 92 -93 -94 95 96 97 -98 99 100
0.39/0.41	v  -101 102 -103 -104 105 -106 107 108 -109 -110
0.39/0.41	v  -111 112 113 114 115 -116 117 118 -119 -120
0.39/0.41	v  -121 122 -123 124 125 -126 -127 128 129 130
0.39/0.41	v  -131 132 133 -134 -135 136 137 -138 -139 -140
0.39/0.41	v  -141 -142 -143 -144 145 -146 147 -148 -149 -150
0.39/0.41	v  151 152 -153 154 155 156 -157 158 -159 -160
0.39/0.41	v  -161 162 163 -164 -165 -166 167 -168 169 -170
0.39/0.41	v  171 -172 173 174 175 176 -177 178 179 -180
0.39/0.41	v  181 182 183 -184 185 186 187 188 189 -190
0.39/0.41	v  -191 -192 193 194 195 -196 -197 198 -199 200
0.39/0.41	v  201 202 203 -204 205 206 -207 208 209 210
0.39/0.41	v  211 -212 213 214 -215 216 -217 218 -219 220
0.39/0.41	v  -221 -222 -223 -224 -225 226 227 228 229 -230
0.39/0.41	v  231 232 -233 234 -235 -236 237 238 239 -240
0.39/0.41	v  241 242 243 244 245 246 247 248 -249 -250
0.39/0.41	v  -251 -252 -253 -254 255 -256 -257 -258 259 260
0.39/0.41	v  261 262 263 264 265 -266 -267 268 -269 270
0.39/0.41	v  271 272 273 274 -275 276 277 278 -279 280
0.39/0.41	v  -281 -282 -283 -284 285 286 -287 -288 289 290
0.39/0.41	v  291 -292 -293 -294 -295 296 -297 -298 299 300
0.39/0.41	v  301 -302 303 -304 -305 306 -307 -308 309 -310
0.39/0.41	v  311 312 313 314 -315 316 317 -318 319 320
0.39/0.41	v  321 -322 -323 324 325 326 -327 -328 329 -330
0.39/0.41	v  -331 -332 333 334 -335 336 -337 338 -339 340
0.39/0.41	v  341 342 343 -344 -345 -346 347 348 349 -350
0.39/0.41	v  -351 -352 -353 354 -355 -356 -357 -358 359 -360
0.39/0.41	v  361 -362 363 -364 365 -366 -367 368 369 -370
0.39/0.41	v  371 372 373 374 375 376 -377 -378 379 380
0.39/0.41	v  -381 -382 -383 384 385 386 387 388 389 -390
0.39/0.41	v  -391 392 393 394 -395 -396 -397 398 399 -400
0.39/0.41	v  401 402 -403 404 405 -406 407 408 409 -410
0.39/0.41	v  -411 -412 413 -414 415 416 -417 418 419 -420
0.39/0.41	v  421 422 -423 -424 -425 426 427 -428 -429 430
0.39/0.41	v  -431 -432 433 434 435 -436 437 -438 439 440
0.39/0.41	v  441 442 443 444 445 -446 447 -448 -449 -450
0.39/0.41	v  -451 452 -453 -454 -455 -456 -457 458 459 460
0.39/0.41	v  -461 462 -463 464 465 -466 -467 -468 469 -470
0.39/0.41	v  -471 -472 473 474 -475 -476 477 478 -479 -480
0.39/0.41	v  -481 482 -483 -484 485 -486 -487 -488 489 -490
0.39/0.41	v  -491 492 493 494 495 496 497 498 499 -500
0.39/0.41	v  501 502 503 504 505 -506 -507 -508 509 510
0.39/0.41	v  -511 -512 -513 -514 515 -516 517 -518 -519 -520
0.39/0.41	v  -521 -522 -523 -524 525 -526 527 -528 529 -530
0.39/0.41	v  -531 -532 -533 534 535 -536 537 538 539 -540
0.39/0.41	v  541 -542 -543 -544 -545 546 -547 548 549 550
0.39/0.41	v  0
0.39/0.41	c SearchSteps = 810863
0.39/0.41	c SolveTime = 0.41

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-3221155-1303286092/watcher-3221155-1303286092 -o /tmp/evaluation-result-3221155-1303286092/solver-3221155-1303286092 -C 5000 -W 5000 -M 15500 sparrow2011 HOME/instance-3221155-1303286092.cnf 989223640 

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: 2.04 2.01 2.00 3/177 27993
/proc/meminfo: memFree=13621052/32950928 swapFree=67111528/67111528
[pid=27993] ppid=27991 vsize=12228 CPUtime=0 cores=1,3,5,7
/proc/27993/stat : 27993 (sparrow2011) R 27991 27993 27093 0 -1 4202496 424 0 0 0 0 0 0 0 25 0 1 0 518839901 12521472 365 33554432000 4194304 4568220 140733868782784 18446744073709551615 4243246 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/27993/statm: 3057 365 173 92 0 1441 0

[startup+0.0399559 s]
/proc/loadavg: 2.04 2.01 2.00 3/177 27993
/proc/meminfo: memFree=13621052/32950928 swapFree=67111528/67111528
[pid=27993] ppid=27991 vsize=12228 CPUtime=0.03 cores=1,3,5,7
/proc/27993/stat : 27993 (sparrow2011) R 27991 27993 27093 0 -1 4202496 425 0 0 0 3 0 0 0 25 0 1 0 518839901 12521472 366 33554432000 4194304 4568220 140733868782784 18446744073709551615 4239200 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/27993/statm: 3057 366 173 92 0 1441 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 12228

[startup+0.100954 s]
/proc/loadavg: 2.04 2.01 2.00 3/177 27993
/proc/meminfo: memFree=13621052/32950928 swapFree=67111528/67111528
[pid=27993] ppid=27991 vsize=12228 CPUtime=0.09 cores=1,3,5,7
/proc/27993/stat : 27993 (sparrow2011) R 27991 27993 27093 0 -1 4202496 425 0 0 0 9 0 0 0 25 0 1 0 518839901 12521472 366 33554432000 4194304 4568220 140733868782784 18446744073709551615 4240146 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/27993/statm: 3057 366 173 92 0 1441 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12228

[startup+0.300923 s]
/proc/loadavg: 2.04 2.01 2.00 3/177 27993
/proc/meminfo: memFree=13621052/32950928 swapFree=67111528/67111528
[pid=27993] ppid=27991 vsize=12228 CPUtime=0.29 cores=1,3,5,7
/proc/27993/stat : 27993 (sparrow2011) R 27991 27993 27093 0 -1 4202496 425 0 0 0 29 0 0 0 25 0 1 0 518839901 12521472 366 33554432000 4194304 4568220 140733868782784 18446744073709551615 4239292 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/27993/statm: 3057 366 173 92 0 1441 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12228

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

[startup+0.400899 s]
/proc/loadavg: 2.04 2.01 2.00 3/177 27993
/proc/meminfo: memFree=13621052/32950928 swapFree=67111528/67111528
[pid=27993] ppid=27991 vsize=12228 CPUtime=0.39 cores=1,3,5,7
/proc/27993/stat : 27993 (sparrow2011) R 27991 27993 27093 0 -1 4202496 425 0 0 0 39 0 0 0 25 0 1 0 518839901 12521472 366 33554432000 4194304 4568220 140733868782784 18446744073709551615 4240189 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/27993/statm: 3057 366 173 92 0 1441 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 12228

Child status: 10
Real time (s): 0.413312
CPU time (s): 0.410937
CPU user time (s): 0.410937
CPU system time (s): 0
CPU usage (%): 99.4254
Max. virtual memory (cumulated for all children) (KiB): 12228

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.410937
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= 443
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 0.003999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node112 at 2011-04-20 09:54:52
IDJOB=3221155
IDBENCH=82876
IDSOLVER=1636
FILE ID=node112/3221155-1303286092
RUNJOBID= node112-1303270968-27112
PBS_JOBID= 13049530
Free space on /tmp= 73276 MiB

SOLVER NAME= sparrow2011 sparrow2011_ubcsat1.2_2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S2058622508-076.SATISFIABLE.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3221155-1303286092/watcher-3221155-1303286092 -o /tmp/evaluation-result-3221155-1303286092/solver-3221155-1303286092 -C 5000 -W 5000 -M 15500  sparrow2011 HOME/instance-3221155-1303286092.cnf 989223640

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

MD5SUM BENCH= c1412f649cda4900c9606cccc6bec4a4
RANDOM SEED=989223640

node112.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	: 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		: 2666.828
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	: 5332.67
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	: 5332.82
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		: 2666.828
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	: 5261.27
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	: 5332.82
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	: 5332.75
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		: 2666.828
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	: 5332.93
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      13621316 kB
Buffers:        794116 kB
Cached:       18082868 kB
SwapCached:          0 kB
Active:        8551276 kB
Inactive:     10392984 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      13621316 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             400 kB
Writeback:           0 kB
AnonPages:       67344 kB
Mapped:          15300 kB
Slab:           323188 kB
PageTables:       4744 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   214924 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= 73272 MiB
End job on node112 at 2011-04-20 09:54:53