Trace number 3220237

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 0.014996 0.015319

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v400-c1704-S823305148-084.SATISFIABLE.cnf
MD5SUMbc5d8e174b258480cce7431b84990bdd
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008997
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1704
Sum of the clauses size5112
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31704
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c 
0.00/0.01	c UBCSAT version 1.2-sparrow2011 (based on BETA 1.2-b10) SAT11 Sparrow Build
0.00/0.01	c 
0.00/0.01	c http://www.satlib.org/ubcsat
0.00/0.01	c 
0.00/0.01	c ubcsat -h for help
0.00/0.01	c 
0.00/0.01	s SATISFIABLE
0.00/0.01	v  -1 2 -3 -4 5 6 7 -8 9 -10
0.00/0.01	v  11 12 -13 -14 15 -16 -17 18 19 20
0.00/0.01	v  -21 22 23 24 -25 -26 27 28 -29 30
0.00/0.01	v  31 32 -33 34 -35 36 -37 -38 -39 40
0.00/0.01	v  41 -42 43 44 -45 46 -47 -48 -49 50
0.00/0.01	v  -51 52 -53 54 55 56 57 58 59 -60
0.00/0.01	v  -61 -62 -63 -64 -65 -66 67 -68 69 70
0.00/0.01	v  -71 72 -73 74 -75 -76 77 78 -79 80
0.00/0.01	v  81 -82 -83 84 85 -86 -87 88 -89 -90
0.00/0.01	v  -91 -92 93 -94 -95 -96 97 -98 -99 100
0.00/0.01	v  101 -102 -103 104 105 106 107 108 -109 110
0.00/0.01	v  111 112 -113 -114 115 116 -117 118 -119 120
0.00/0.01	v  121 122 123 124 125 126 -127 128 129 -130
0.00/0.01	v  -131 -132 -133 -134 -135 -136 -137 138 -139 140
0.00/0.01	v  -141 -142 -143 144 -145 146 -147 -148 -149 -150
0.00/0.01	v  -151 152 -153 154 155 156 -157 -158 -159 -160
0.00/0.01	v  -161 -162 -163 164 165 166 167 168 169 -170
0.00/0.01	v  171 -172 -173 174 -175 -176 177 -178 -179 -180
0.00/0.01	v  181 -182 183 184 -185 -186 187 -188 -189 -190
0.00/0.01	v  -191 192 -193 -194 195 196 197 -198 -199 200
0.00/0.01	v  -201 -202 203 -204 -205 206 -207 -208 -209 210
0.00/0.01	v  -211 -212 -213 -214 -215 216 217 218 -219 220
0.00/0.01	v  221 -222 -223 -224 225 -226 -227 228 -229 230
0.00/0.01	v  231 -232 -233 -234 235 236 237 -238 -239 -240
0.00/0.01	v  -241 242 243 -244 245 246 247 248 249 -250
0.00/0.01	v  -251 -252 -253 -254 -255 256 -257 258 259 -260
0.00/0.01	v  -261 262 -263 -264 265 266 -267 268 -269 -270
0.00/0.01	v  271 272 273 274 -275 -276 277 -278 -279 280
0.00/0.01	v  -281 -282 283 -284 -285 286 -287 288 -289 -290
0.00/0.01	v  -291 -292 293 -294 295 -296 297 298 -299 -300
0.00/0.01	v  301 302 -303 -304 -305 -306 307 -308 -309 -310
0.00/0.01	v  311 -312 313 -314 -315 -316 -317 -318 -319 -320
0.00/0.01	v  321 322 -323 -324 325 326 327 328 329 -330
0.00/0.01	v  -331 -332 333 -334 -335 -336 -337 -338 339 -340
0.00/0.01	v  341 342 343 344 -345 346 347 -348 349 -350
0.00/0.01	v  351 -352 353 354 -355 -356 -357 -358 359 -360
0.00/0.01	v  361 -362 -363 364 365 -366 -367 -368 369 370
0.00/0.01	v  371 372 -373 -374 -375 -376 377 -378 -379 -380
0.00/0.01	v  -381 -382 -383 -384 -385 -386 387 388 -389 -390
0.00/0.01	v  -391 -392 393 -394 395 396 -397 -398 399 -400
0.00/0.01	v  0
0.00/0.01	c SearchSteps = 25638
0.00/0.01	c SolveTime = 0.01

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-3220237-1303259281/watcher-3220237-1303259281 -o /tmp/evaluation-result-3220237-1303259281/solver-3220237-1303259281 -C 5000 -W 5000 -M 15500 sparrow2011 HOME/instance-3220237-1303259281.cnf 1656858625 

running on 4 cores: 0,2,4,6

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: 0.08 0.50 2.98 2/177 26976
/proc/meminfo: memFree=15993308/32951124 swapFree=67111528/67111528
[pid=26976] ppid=26974 vsize=12228 CPUtime=0 cores=0,2,4,6
/proc/26976/stat : 26976 (sparrow2011) R 26974 26976 26911 0 -1 4202496 409 0 0 0 0 0 0 0 21 0 1 0 437528820 12521472 349 33554432000 4194304 4568220 140735134613568 18446744073709551615 4240176 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/26976/statm: 3057 349 173 92 0 1441 0

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

Child status: 10
Real time (s): 0.015319
CPU time (s): 0.014996
CPU user time (s): 0.013997
CPU system time (s): 0.000999
CPU usage (%): 97.8913
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.013997
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= 427
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 0.003999 second system time

The end

Launcher Data 

Begin job on node109 at 2011-04-20 02:28:01
IDJOB=3220237
IDBENCH=82723
IDSOLVER=1636
FILE ID=node109/3220237-1303259281
RUNJOBID= node109-1303259275-26929
PBS_JOBID= 13049513
Free space on /tmp= 71476 MiB

SOLVER NAME= sparrow2011 sparrow2011_ubcsat1.2_2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v400-c1704-S823305148-084.SATISFIABLE.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3220237-1303259281/watcher-3220237-1303259281 -o /tmp/evaluation-result-3220237-1303259281/solver-3220237-1303259281 -C 5000 -W 5000 -M 15500  sparrow2011 HOME/instance-3220237-1303259281.cnf 1656858625

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

MD5SUM BENCH= bc5d8e174b258480cce7431b84990bdd
RANDOM SEED=1656858625

node109.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	: 5332.74
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		: 2666.809
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	: 5332.75
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		: 2666.809
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	: 5332.82
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	: 5332.75
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		: 2666.809
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	: 5332.82
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:      15993464 kB
Buffers:        766024 kB
Cached:       15765788 kB
SwapCached:          0 kB
Active:        7933588 kB
Inactive:      8664288 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      15993464 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            1380 kB
Writeback:           0 kB
AnonPages:       65824 kB
Mapped:          15304 kB
Slab:           297160 kB
PageTables:       4624 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   212696 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= 71476 MiB
End job on node109 at 2011-04-20 02:28:01