Trace number 3162496

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 1.07784 1.079

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 benchmark0.004998
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 

1.00/1.07	c 
1.00/1.07	c UBCSAT version 1.2-sparrow2011 (based on BETA 1.2-b10) SAT11 Sparrow Build
1.00/1.07	c 
1.00/1.07	c http://www.satlib.org/ubcsat
1.00/1.07	c 
1.00/1.07	c ubcsat -h for help
1.00/1.07	c 
1.00/1.07	s SATISFIABLE
1.00/1.07	v  1 -2 3 -4 -5 -6 7 -8 -9 -10
1.00/1.07	v  11 12 13 -14 15 16 17 -18 19 20
1.00/1.07	v  21 -22 -23 -24 -25 -26 -27 -28 29 30
1.00/1.07	v  -31 32 -33 34 -35 -36 -37 -38 39 -40
1.00/1.07	v  -41 42 43 -44 45 -46 -47 -48 49 50
1.00/1.07	v  -51 -52 53 -54 -55 56 -57 -58 59 60
1.00/1.07	v  -61 62 63 64 65 -66 -67 -68 69 -70
1.00/1.07	v  71 -72 -73 74 -75 76 -77 -78 79 -80
1.00/1.07	v  81 82 -83 -84 85 86 -87 -88 89 90
1.00/1.07	v  -91 -92 -93 94 95 96 -97 98 -99 100
1.00/1.07	v  101 102 103 -104 -105 106 107 -108 109 -110
1.00/1.07	v  -111 -112 113 -114 115 116 117 -118 -119 -120
1.00/1.07	v  -121 -122 123 124 125 126 -127 128 129 -130
1.00/1.07	v  -131 -132 133 -134 135 -136 -137 -138 139 140
1.00/1.07	v  141 142 143 144 145 146 147 148 -149 -150
1.00/1.07	v  151 -152 -153 -154 -155 156 -157 158 159 -160
1.00/1.07	v  -161 -162 -163 -164 -165 -166 167 -168 -169 -170
1.00/1.07	v  171 -172 173 -174 175 176 -177 -178 179 -180
1.00/1.07	v  181 -182 183 -184 185 186 187 188 189 -190
1.00/1.07	v  -191 -192 -193 194 195 -196 197 198 -199 -200
1.00/1.07	v  201 -202 203 -204 -205 -206 207 -208 -209 210
1.00/1.07	v  211 212 213 214 -215 216 217 -218 219 -220
1.00/1.07	v  221 -222 -223 224 -225 -226 -227 228 -229 -230
1.00/1.07	v  -231 -232 233 -234 -235 -236 237 238 239 240
1.00/1.07	v  241 242 -243 244 -245 -246 247 -248 249 -250
1.00/1.07	v  -251 -252 -253 254 -255 256 -257 -258 -259 260
1.00/1.07	v  261 262 -263 264 265 266 267 -268 269 -270
1.00/1.07	v  271 272 273 -274 275 -276 -277 -278 279 -280
1.00/1.07	v  281 -282 -283 -284 285 286 287 288 289 290
1.00/1.07	v  -291 292 293 -294 295 296 297 -298 -299 300
1.00/1.07	v  -301 302 -303 304 305 306 307 -308 -309 -310
1.00/1.07	v  311 312 313 -314 -315 -316 -317 318 -319 -320
1.00/1.07	v  321 -322 -323 -324 -325 326 327 -328 329 330
1.00/1.07	v  331 -332 333 334 -335 -336 337 338 339 -340
1.00/1.07	v  341 342 343 344 -345 -346 347 -348 349 -350
1.00/1.07	v  -351 352 -353 354 355 -356 357 -358 -359 360
1.00/1.07	v  -361 362 -363 364 -365 -366 -367 368 369 -370
1.00/1.07	v  -371 372 373 374 -375 -376 377 -378 -379 380
1.00/1.07	v  -381 -382 383 -384 385 386 387 -388 389 390
1.00/1.07	v  -391 392 393 394 -395 -396 -397 -398 399 400
1.00/1.07	v  0
1.00/1.07	c SearchSteps = 2171687
1.00/1.07	c SolveTime = 1.07

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-3162496-1301699743/watcher-3162496-1301699743 -o /tmp/evaluation-result-3162496-1301699743/solver-3162496-1301699743 -C 2400 -W 1300 -M 7680 sparrow2011 HOME/instance-3162496-1301699743.cnf 252806729 

running on 2 cores: 4,6

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 4.01 3.75 5/189 16612
/proc/meminfo: memFree=20521876/32951124 swapFree=67111524/67111528
[pid=16612] ppid=16610 vsize=12228 CPUtime=0 cores=4,6
/proc/16612/stat : 16612 (sparrow2011) R 16610 16612 16176 0 -1 4202496 411 0 0 0 0 0 0 0 25 0 1 0 360204747 12521472 350 33554432000 4194304 4568220 140733769460160 18446744073709551615 4239899 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/16612/statm: 3057 350 173 92 0 1441 0

[startup+0.0549561 s]
/proc/loadavg: 4.06 4.01 3.75 5/189 16612
/proc/meminfo: memFree=20521876/32951124 swapFree=67111524/67111528
[pid=16612] ppid=16610 vsize=12228 CPUtime=0.05 cores=4,6
/proc/16612/stat : 16612 (sparrow2011) R 16610 16612 16176 0 -1 4202496 411 0 0 0 5 0 0 0 25 0 1 0 360204747 12521472 350 33554432000 4194304 4568220 140733769460160 18446744073709551615 4240195 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/16612/statm: 3057 350 173 92 0 1441 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 12228

[startup+0.100952 s]
/proc/loadavg: 4.06 4.01 3.75 5/189 16612
/proc/meminfo: memFree=20521876/32951124 swapFree=67111524/67111528
[pid=16612] ppid=16610 vsize=12228 CPUtime=0.1 cores=4,6
/proc/16612/stat : 16612 (sparrow2011) R 16610 16612 16176 0 -1 4202496 411 0 0 0 10 0 0 0 25 0 1 0 360204747 12521472 350 33554432000 4194304 4568220 140733769460160 18446744073709551615 4239606 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/16612/statm: 3057 350 173 92 0 1441 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 12228

[startup+0.300905 s]
/proc/loadavg: 4.06 4.01 3.75 5/189 16612
/proc/meminfo: memFree=20521876/32951124 swapFree=67111524/67111528
[pid=16612] ppid=16610 vsize=12228 CPUtime=0.3 cores=4,6
/proc/16612/stat : 16612 (sparrow2011) R 16610 16612 16176 0 -1 4202496 411 0 0 0 30 0 0 0 25 0 1 0 360204747 12521472 350 33554432000 4194304 4568220 140733769460160 18446744073709551615 4239482 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/16612/statm: 3057 350 173 92 0 1441 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 12228

[startup+0.700836 s]
/proc/loadavg: 4.06 4.01 3.75 5/189 16612
/proc/meminfo: memFree=20521876/32951124 swapFree=67111524/67111528
[pid=16612] ppid=16610 vsize=12228 CPUtime=0.7 cores=4,6
/proc/16612/stat : 16612 (sparrow2011) R 16610 16612 16176 0 -1 4202496 411 0 0 0 70 0 0 0 25 0 1 0 360204747 12521472 350 33554432000 4194304 4568220 140733769460160 18446744073709551615 4239286 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/16612/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+0.900801 s]
/proc/loadavg: 4.06 4.01 3.75 5/189 16612
/proc/meminfo: memFree=20521876/32951124 swapFree=67111524/67111528
[pid=16612] ppid=16610 vsize=12228 CPUtime=0.9 cores=4,6
/proc/16612/stat : 16612 (sparrow2011) R 16610 16612 16176 0 -1 4202496 411 0 0 0 90 0 0 0 25 0 1 0 360204747 12521472 350 33554432000 4194304 4568220 140733769460160 18446744073709551615 4243006 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/16612/statm: 3057 350 173 92 0 1441 0
Current children cumulated CPU time (s) 0.9
Current children cumulated vsize (KiB) 12228

[startup+1.00077 s]
/proc/loadavg: 4.06 4.01 3.75 5/190 16613
/proc/meminfo: memFree=20520512/32951124 swapFree=67111524/67111528
[pid=16612] ppid=16610 vsize=12228 CPUtime=1 cores=4,6
/proc/16612/stat : 16612 (sparrow2011) R 16610 16612 16176 0 -1 4202496 411 0 0 0 100 0 0 0 25 0 1 0 360204747 12521472 350 33554432000 4194304 4568220 140733769460160 18446744073709551615 4239636 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/16612/statm: 3057 350 173 92 0 1441 0
Current children cumulated CPU time (s) 1
Current children cumulated vsize (KiB) 12228

Child status: 10
Real time (s): 1.079
CPU time (s): 1.07784
CPU user time (s): 1.07784
CPU system time (s): 0
CPU usage (%): 99.892
Max. virtual memory (cumulated for all children) (KiB): 12228

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.07784
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= 429
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= 2

runsolver used 0.003999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node111 at 2011-04-02 01:15:43
IDJOB=3162496
IDBENCH=82727
IDSOLVER=1573
FILE ID=node111/3162496-1301699743
RUNJOBID= node111-1301698272-16195
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-v400-c1704-S1864619158-076.SATISFIABLE.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3162496-1301699743/watcher-3162496-1301699743 -o /tmp/evaluation-result-3162496-1301699743/solver-3162496-1301699743 -C 2400 -W 1300 -M 7680  sparrow2011 HOME/instance-3162496-1301699743.cnf 252806729

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

MD5SUM BENCH= 420c3b1966635ea800a6b2af1a449f73
RANDOM SEED=252806729

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:      20521892 kB
Buffers:        343420 kB
Cached:       11714740 kB
SwapCached:          4 kB
Active:        7532204 kB
Inactive:      4596696 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20521892 kB
SwapTotal:    67111528 kB
SwapFree:     67111524 kB
Dirty:             400 kB
Writeback:           0 kB
AnonPages:       70688 kB
Mapped:          15796 kB
Slab:           236852 kB
PageTables:       5224 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   268892 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 01:15:44