Trace number 3220261

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 1.23981 1.23988

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v400-c1704-S1864619158-076.SATISFIABLE.cnf
MD5SUM420c3b1966635ea800a6b2af1a449f73
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.005998
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 

1.20/1.23	c 
1.20/1.23	c UBCSAT version 1.2-sparrow2011 (based on BETA 1.2-b10) SAT11 Sparrow Build
1.20/1.23	c 
1.20/1.23	c http://www.satlib.org/ubcsat
1.20/1.23	c 
1.20/1.23	c ubcsat -h for help
1.20/1.23	c 
1.20/1.23	s SATISFIABLE
1.20/1.23	v  1 -2 3 -4 -5 -6 7 -8 -9 -10
1.20/1.23	v  11 12 13 -14 15 16 17 -18 19 20
1.20/1.23	v  21 -22 -23 -24 -25 -26 -27 -28 29 30
1.20/1.23	v  -31 32 -33 34 -35 -36 -37 -38 39 -40
1.20/1.23	v  -41 42 -43 -44 45 -46 -47 -48 49 50
1.20/1.23	v  -51 -52 53 -54 -55 56 57 -58 -59 60
1.20/1.23	v  -61 62 63 64 65 66 -67 -68 69 -70
1.20/1.23	v  71 -72 73 74 -75 76 -77 -78 79 -80
1.20/1.23	v  81 82 -83 -84 85 86 -87 -88 89 90
1.20/1.23	v  -91 -92 -93 94 95 96 -97 98 -99 -100
1.20/1.23	v  101 102 103 -104 -105 106 107 -108 109 -110
1.20/1.23	v  -111 -112 -113 -114 115 116 117 -118 -119 -120
1.20/1.23	v  -121 -122 123 124 125 126 -127 128 129 -130
1.20/1.23	v  -131 -132 133 -134 135 -136 -137 -138 139 140
1.20/1.23	v  141 142 143 144 145 146 147 148 -149 -150
1.20/1.23	v  151 -152 -153 -154 -155 156 -157 158 159 -160
1.20/1.23	v  -161 -162 -163 -164 -165 -166 167 -168 -169 -170
1.20/1.23	v  171 -172 173 -174 175 176 -177 -178 179 -180
1.20/1.23	v  181 -182 183 -184 185 186 187 188 189 -190
1.20/1.23	v  -191 -192 -193 194 195 -196 197 198 -199 -200
1.20/1.23	v  201 -202 203 -204 -205 -206 207 -208 -209 210
1.20/1.23	v  211 212 213 214 -215 216 217 -218 219 -220
1.20/1.23	v  221 -222 -223 224 -225 -226 -227 228 -229 -230
1.20/1.23	v  -231 -232 233 -234 -235 -236 237 238 239 240
1.20/1.23	v  241 242 -243 -244 -245 -246 247 -248 249 -250
1.20/1.23	v  -251 -252 -253 254 -255 256 -257 -258 -259 260
1.20/1.23	v  261 262 -263 264 265 266 267 -268 269 -270
1.20/1.23	v  271 272 273 -274 275 -276 -277 -278 279 -280
1.20/1.23	v  -281 -282 -283 284 285 286 287 288 289 290
1.20/1.23	v  -291 292 293 -294 295 296 297 -298 -299 300
1.20/1.23	v  -301 302 -303 304 305 306 307 -308 -309 -310
1.20/1.23	v  311 312 313 -314 -315 -316 -317 318 -319 -320
1.20/1.23	v  321 -322 -323 -324 -325 326 327 -328 329 330
1.20/1.23	v  331 -332 333 334 -335 -336 337 338 339 -340
1.20/1.23	v  341 342 343 344 -345 -346 347 348 349 -350
1.20/1.23	v  -351 352 -353 354 355 -356 357 -358 -359 360
1.20/1.23	v  -361 362 -363 364 -365 -366 -367 -368 369 -370
1.20/1.23	v  -371 372 -373 374 -375 -376 377 -378 379 380
1.20/1.23	v  -381 -382 383 -384 385 386 387 -388 389 -390
1.20/1.23	v  -391 -392 393 394 -395 -396 -397 -398 -399 400
1.20/1.23	v  0
1.20/1.23	c SearchSteps = 2521680
1.20/1.23	c SolveTime = 1.23

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-3220261-1303259283/watcher-3220261-1303259283 -o /tmp/evaluation-result-3220261-1303259283/solver-3220261-1303259283 -C 5000 -W 5000 -M 15500 sparrow2011 HOME/instance-3220261-1303259283.cnf 2116870846 

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: 0.23 0.12 1.57 2/177 19252
/proc/meminfo: memFree=16827240/32950928 swapFree=67111528/67111528
[pid=19252] ppid=19250 vsize=12228 CPUtime=0 cores=1,3,5,7
/proc/19252/stat : 19252 (sparrow2011) R 19250 19252 19159 0 -1 4202496 409 0 0 0 0 0 0 0 25 0 1 0 437527013 12521472 350 33554432000 4194304 4568220 140734479823136 18446744073709551615 4242960 0 0 4096 0 0 0 0 17 3 0 0 0
/proc/19252/statm: 3057 350 173 92 0 1441 0

[startup+0.0465909 s]
/proc/loadavg: 0.23 0.12 1.57 2/177 19252
/proc/meminfo: memFree=16827240/32950928 swapFree=67111528/67111528
[pid=19252] ppid=19250 vsize=12228 CPUtime=0.04 cores=1,3,5,7
/proc/19252/stat : 19252 (sparrow2011) R 19250 19252 19159 0 -1 4202496 409 0 0 0 4 0 0 0 25 0 1 0 437527013 12521472 350 33554432000 4194304 4568220 140734479823136 18446744073709551615 4240183 0 0 4096 0 0 0 0 17 3 0 0 0
/proc/19252/statm: 3057 350 173 92 0 1441 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 12228

[startup+0.100582 s]
/proc/loadavg: 0.23 0.12 1.57 2/177 19252
/proc/meminfo: memFree=16827240/32950928 swapFree=67111528/67111528
[pid=19252] ppid=19250 vsize=12228 CPUtime=0.1 cores=1,3,5,7
/proc/19252/stat : 19252 (sparrow2011) R 19250 19252 19159 0 -1 4202496 409 0 0 0 10 0 0 0 25 0 1 0 437527013 12521472 350 33554432000 4194304 4568220 140734479823136 18446744073709551615 4243049 0 0 4096 0 0 0 0 17 3 0 0 0
/proc/19252/statm: 3057 350 173 92 0 1441 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 12228

[startup+0.300547 s]
/proc/loadavg: 0.23 0.12 1.57 2/177 19252
/proc/meminfo: memFree=16827240/32950928 swapFree=67111528/67111528
[pid=19252] ppid=19250 vsize=12228 CPUtime=0.3 cores=1,3,5,7
/proc/19252/stat : 19252 (sparrow2011) R 19250 19252 19159 0 -1 4202496 409 0 0 0 30 0 0 0 25 0 1 0 437527013 12521472 350 33554432000 4194304 4568220 140734479823136 18446744073709551615 4239958 0 0 4096 0 0 0 0 17 3 0 0 0
/proc/19252/statm: 3057 350 173 92 0 1441 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 12228

[startup+0.700476 s]
/proc/loadavg: 0.23 0.12 1.57 2/177 19252
/proc/meminfo: memFree=16827240/32950928 swapFree=67111528/67111528
[pid=19252] ppid=19250 vsize=12228 CPUtime=0.7 cores=1,3,5,7
/proc/19252/stat : 19252 (sparrow2011) R 19250 19252 19159 0 -1 4202496 409 0 0 0 70 0 0 0 25 0 1 0 437527013 12521472 350 33554432000 4194304 4568220 140734479823136 18446744073709551615 4240092 0 0 4096 0 0 0 0 17 3 0 0 0
/proc/19252/statm: 3057 350 173 92 0 1441 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 12228

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

[startup+1.1064 s]
/proc/loadavg: 0.23 0.12 1.57 3/178 19253
/proc/meminfo: memFree=16826140/32950928 swapFree=67111528/67111528
[pid=19252] ppid=19250 vsize=12228 CPUtime=1.1 cores=1,3,5,7
/proc/19252/stat : 19252 (sparrow2011) R 19250 19252 19159 0 -1 4202496 409 0 0 0 110 0 0 0 25 0 1 0 437527013 12521472 350 33554432000 4194304 4568220 140734479823136 18446744073709551615 4239664 0 0 4096 0 0 0 0 17 3 0 0 0
/proc/19252/statm: 3057 350 173 92 0 1441 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 12228

[startup+1.20039 s]
/proc/loadavg: 0.23 0.12 1.57 3/178 19253
/proc/meminfo: memFree=16826140/32950928 swapFree=67111528/67111528
[pid=19252] ppid=19250 vsize=12228 CPUtime=1.2 cores=1,3,5,7
/proc/19252/stat : 19252 (sparrow2011) R 19250 19252 19159 0 -1 4202496 409 0 0 0 120 0 0 0 25 0 1 0 437527013 12521472 350 33554432000 4194304 4568220 140734479823136 18446744073709551615 4239289 0 0 4096 0 0 0 0 17 3 0 0 0
/proc/19252/statm: 3057 350 173 92 0 1441 0
Current children cumulated CPU time (s) 1.2
Current children cumulated vsize (KiB) 12228

Child status: 10
Real time (s): 1.23988
CPU time (s): 1.23981
CPU user time (s): 1.23981
CPU system time (s): 0
CPU usage (%): 99.9941
Max. virtual memory (cumulated for all children) (KiB): 12228

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.23981
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= 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= 18

runsolver used 0 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node120 at 2011-04-20 02:28:03
IDJOB=3220261
IDBENCH=82727
IDSOLVER=1636
FILE ID=node120/3220261-1303259283
RUNJOBID= node120-1303259273-19179
PBS_JOBID= 13049506
Free space on /tmp= 72352 MiB

SOLVER NAME= sparrow2011 sparrow2011_ubcsat1.2_2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v400-c1704-S1864619158-076.SATISFIABLE.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3220261-1303259283/watcher-3220261-1303259283 -o /tmp/evaluation-result-3220261-1303259283/solver-3220261-1303259283 -C 5000 -W 5000 -M 15500  sparrow2011 HOME/instance-3220261-1303259283.cnf 2116870846

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

MD5SUM BENCH= 420c3b1966635ea800a6b2af1a449f73
RANDOM SEED=2116870846

node120.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	: 5226.07
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	: 5332.82
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	: 5332.78
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      16827528 kB
Buffers:        766648 kB
Cached:       14944180 kB
SwapCached:          0 kB
Active:        8437024 kB
Inactive:      7338996 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      16827528 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            1300 kB
Writeback:           0 kB
AnonPages:       65076 kB
Mapped:          15696 kB
Slab:           285080 kB
PageTables:       4728 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   213288 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= 72348 MiB
End job on node120 at 2011-04-20 02:28:04