Trace number 3221677

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 0.003999 0.00612505

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v450-c1917-S222128792-011.SATISFIABLE.cnf
MD5SUMafacdefc4a366ba0b827e7e74ce8af4c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.003999
Satisfiable
(Un)Satisfiability was proved
Number of variables450
Number of clauses1917
Sum of the clauses size5751
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31917
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  0
0.00/0.00	c SearchSteps = 3471
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-3221677-1303297897/watcher-3221677-1303297897 -o /tmp/evaluation-result-3221677-1303297897/solver-3221677-1303297897 -C 5000 -W 5000 -M 15500 sparrow2011 HOME/instance-3221677-1303297897.cnf 204731823 

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 2.00 3/177 17704
/proc/meminfo: memFree=23624252/32951124 swapFree=67110396/67111528
[pid=17704] ppid=17702 vsize=0 CPUtime=0 cores=1,3,5,7
/proc/17704/stat : 17704 (sparrow2011) Z 17702 17704 17091 0 -1 4202524 434 0 0 0 0 0 0 0 25 0 1 0 520020404 0 0 33554432000 0 0 0 0 0 0 0 4096 0 18446744073709551615 0 0 17 1 0 0 0
/proc/17704/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): 0.00612505
CPU time (s): 0.003999
CPU user time (s): 0.003999
CPU system time (s): 0
CPU usage (%): 65.2893
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.003999
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= 434
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 0.001999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node118 at 2011-04-20 13:11:37
IDJOB=3221677
IDBENCH=82963
IDSOLVER=1636
FILE ID=node118/3221677-1303297897
RUNJOBID= node118-1303287891-17110
PBS_JOBID= 13049587
Free space on /tmp= 73040 MiB

SOLVER NAME= sparrow2011 sparrow2011_ubcsat1.2_2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v450-c1917-S222128792-011.SATISFIABLE.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3221677-1303297897/watcher-3221677-1303297897 -o /tmp/evaluation-result-3221677-1303297897/solver-3221677-1303297897 -C 5000 -W 5000 -M 15500  sparrow2011 HOME/instance-3221677-1303297897.cnf 204731823

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

MD5SUM BENCH= afacdefc4a366ba0b827e7e74ce8af4c
RANDOM SEED=204731823

node118.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		: 2666.842
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	: 5333.68
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		: 2666.842
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		: 2666.842
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	: 5332.74
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		: 2666.842
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		: 2666.842
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	: 5332.68
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		: 2666.842
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	: 5332.75
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		: 2666.842
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		: 2666.842
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	: 5374.59
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      23624516 kB
Buffers:        720156 kB
Cached:        8188996 kB
SwapCached:        600 kB
Active:        5642684 kB
Inactive:      3332300 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      23624516 kB
SwapTotal:    67111528 kB
SwapFree:     67110396 kB
Dirty:             424 kB
Writeback:           0 kB
AnonPages:       65296 kB
Mapped:          15384 kB
Slab:           288348 kB
PageTables:       4712 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   216664 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= 73040 MiB
End job on node118 at 2011-04-20 13:11:37