Trace number 3221731

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 0.141978 0.142436

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v450-c1917-S1617626827-069.SATISFIABLE.cnf
MD5SUM181d327d4cfd49957ee63dfb74a0e12a
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007997
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 

0.10/0.14	c 
0.10/0.14	c UBCSAT version 1.2-sparrow2011 (based on BETA 1.2-b10) SAT11 Sparrow Build
0.10/0.14	c 
0.10/0.14	c http://www.satlib.org/ubcsat
0.10/0.14	c 
0.10/0.14	c ubcsat -h for help
0.10/0.14	c 
0.10/0.14	s SATISFIABLE
0.10/0.14	v  -1 -2 3 -4 5 -6 -7 -8 -9 10
0.10/0.14	v  11 12 -13 14 15 -16 -17 18 -19 20
0.10/0.14	v  -21 22 23 -24 -25 26 -27 28 -29 -30
0.10/0.14	v  -31 32 33 34 35 -36 -37 -38 39 -40
0.10/0.14	v  41 -42 -43 -44 45 46 47 48 49 50
0.10/0.14	v  51 -52 53 54 -55 56 57 58 -59 -60
0.10/0.14	v  61 -62 63 -64 -65 66 67 68 69 70
0.10/0.14	v  -71 -72 73 -74 75 -76 -77 78 79 -80
0.10/0.14	v  81 -82 83 84 85 -86 -87 -88 89 -90
0.10/0.14	v  -91 -92 -93 94 95 96 -97 -98 -99 100
0.10/0.14	v  -101 -102 103 104 -105 106 -107 -108 109 -110
0.10/0.14	v  111 -112 113 114 -115 -116 -117 -118 119 120
0.10/0.14	v  121 -122 123 124 -125 126 -127 128 129 130
0.10/0.14	v  -131 132 133 -134 135 -136 137 -138 139 -140
0.10/0.14	v  -141 -142 143 144 -145 -146 -147 -148 149 150
0.10/0.14	v  151 152 -153 154 155 156 157 158 -159 160
0.10/0.14	v  161 162 163 -164 165 166 167 168 169 -170
0.10/0.14	v  171 -172 -173 174 175 176 177 -178 -179 180
0.10/0.14	v  -181 182 183 -184 -185 -186 -187 -188 -189 -190
0.10/0.14	v  191 192 -193 -194 195 -196 197 -198 199 200
0.10/0.14	v  -201 202 203 204 -205 -206 -207 -208 -209 -210
0.10/0.14	v  -211 212 -213 214 215 -216 -217 218 219 220
0.10/0.14	v  -221 222 223 -224 225 -226 -227 -228 -229 -230
0.10/0.14	v  231 -232 233 234 -235 -236 237 238 -239 240
0.10/0.14	v  241 242 243 -244 245 -246 -247 -248 -249 250
0.10/0.14	v  -251 252 253 -254 255 -256 257 -258 -259 -260
0.10/0.14	v  261 262 -263 264 -265 -266 -267 -268 269 270
0.10/0.14	v  271 -272 273 -274 275 276 277 -278 -279 -280
0.10/0.14	v  281 -282 -283 284 -285 -286 -287 -288 -289 290
0.10/0.14	v  291 -292 -293 -294 -295 296 297 -298 299 300
0.10/0.14	v  -301 -302 -303 304 -305 -306 307 -308 -309 -310
0.10/0.14	v  -311 -312 313 314 315 316 -317 318 -319 -320
0.10/0.14	v  321 322 323 324 325 326 -327 328 329 330
0.10/0.14	v  -331 332 333 -334 -335 336 -337 338 339 340
0.10/0.14	v  341 342 343 344 -345 346 347 348 349 -350
0.10/0.14	v  351 -352 -353 -354 -355 -356 -357 358 359 -360
0.10/0.14	v  361 362 363 364 -365 -366 -367 368 369 370
0.10/0.14	v  371 372 -373 374 -375 376 377 -378 -379 380
0.10/0.14	v  381 382 -383 384 -385 -386 387 -388 389 -390
0.10/0.14	v  391 -392 393 -394 395 -396 -397 -398 399 400
0.10/0.14	v  401 -402 -403 -404 405 -406 407 408 -409 -410
0.10/0.14	v  -411 412 -413 414 415 416 -417 418 419 -420
0.10/0.14	v  421 422 -423 -424 -425 426 427 428 -429 -430
0.10/0.14	v  -431 432 -433 -434 435 -436 437 -438 -439 440
0.10/0.14	v  441 442 443 444 -445 -446 447 448 -449 450
0.10/0.14	v  0
0.10/0.14	c SearchSteps = 270882
0.10/0.14	c SolveTime = 0.14

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-3221731-1303298735/watcher-3221731-1303298735 -o /tmp/evaluation-result-3221731-1303298735/solver-3221731-1303298735 -C 5000 -W 5000 -M 15500 sparrow2011 HOME/instance-3221731-1303298735.cnf 926766169 

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: 2.00 2.01 2.00 1/176 25881
/proc/meminfo: memFree=13364352/32951124 swapFree=67111528/67111528
[pid=25881] ppid=25879 vsize=12228 CPUtime=0 cores=0,2,4,6
/proc/25881/stat : 25881 (sparrow2011) R 25879 25881 25595 0 -1 4202496 415 0 0 0 0 0 0 0 25 0 1 0 441471695 12521472 356 33554432000 4194304 4568220 140734494897824 18446744073709551615 4240016 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/25881/statm: 3057 356 173 92 0 1441 0

[startup+0.0665679 s]
/proc/loadavg: 2.00 2.01 2.00 1/176 25881
/proc/meminfo: memFree=13364352/32951124 swapFree=67111528/67111528
[pid=25881] ppid=25879 vsize=12228 CPUtime=0.06 cores=0,2,4,6
/proc/25881/stat : 25881 (sparrow2011) R 25879 25881 25595 0 -1 4202496 415 0 0 0 6 0 0 0 25 0 1 0 441471695 12521472 356 33554432000 4194304 4568220 140734494897824 18446744073709551615 4239482 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/25881/statm: 3057 356 173 92 0 1441 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 12228

[startup+0.100559 s]
/proc/loadavg: 2.00 2.01 2.00 1/176 25881
/proc/meminfo: memFree=13364352/32951124 swapFree=67111528/67111528
[pid=25881] ppid=25879 vsize=12228 CPUtime=0.1 cores=0,2,4,6
/proc/25881/stat : 25881 (sparrow2011) R 25879 25881 25595 0 -1 4202496 415 0 0 0 10 0 0 0 25 0 1 0 441471695 12521472 356 33554432000 4194304 4568220 140734494897824 18446744073709551615 4239623 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/25881/statm: 3057 356 173 92 0 1441 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 12228

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

Child status: 10
Real time (s): 0.142436
CPU time (s): 0.141978
CPU user time (s): 0.141978
CPU system time (s): 0
CPU usage (%): 99.6784
Max. virtual memory (cumulated for all children) (KiB): 12228

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.141978
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= 433
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= 19

runsolver used 0.000999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node132 at 2011-04-20 13:25:35
IDJOB=3221731
IDBENCH=82972
IDSOLVER=1636
FILE ID=node132/3221731-1303298735
RUNJOBID= node132-1303293733-25613
PBS_JOBID= 13049631
Free space on /tmp= 72924 MiB

SOLVER NAME= sparrow2011 sparrow2011_ubcsat1.2_2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v450-c1917-S1617626827-069.SATISFIABLE.cnf
COMMAND LINE= sparrow2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3221731-1303298735/watcher-3221731-1303298735 -o /tmp/evaluation-result-3221731-1303298735/solver-3221731-1303298735 -C 5000 -W 5000 -M 15500  sparrow2011 HOME/instance-3221731-1303298735.cnf 926766169

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

MD5SUM BENCH= 181d327d4cfd49957ee63dfb74a0e12a
RANDOM SEED=926766169

node132.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		: 2666.833
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	: 5333.66
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		: 2666.833
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	: 5332.74
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		: 2666.833
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	: 5332.76
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		: 2666.833
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		: 2666.833
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	: 5332.77
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		: 2666.833
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	: 5332.67
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		: 2666.833
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		: 2666.833
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:     32951124 kB
MemFree:      13364632 kB
Buffers:        697920 kB
Cached:       18458336 kB
SwapCached:          0 kB
Active:        7750368 kB
Inactive:     11470144 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      13364632 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             492 kB
Writeback:           4 kB
AnonPages:       63848 kB
Mapped:          14928 kB
Slab:           304904 kB
PageTables:       5040 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   188968 kB
VmallocTotal: 34359738367 kB
VmallocUsed:     33868 kB
VmallocChunk: 34359703231 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 72924 MiB
End job on node132 at 2011-04-20 13:25:36