Trace number 3169233

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
shortsattime+ 2011-03-02SAT 0.270957 0.270889

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v400-c1704-S1960786523-069.SATISFIABLE.cnf
MD5SUM23247368fdc20070eb9c682abfb798ef
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011997
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 

0.19/0.27	c 0 clauses are redundant and removed
0.19/0.27	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.19/0.27	c 0 vars are fixed and 0 clauses are removed after lookahead
0.19/0.27	c initial seed is 311072613
0.19/0.27	c try=1 flip j=678644 walk=594958 seed 311072630
0.19/0.27	c A solution is found
0.19/0.27	s SATISFIABLE
0.19/0.27	v 1 -2 -3 4 5 -6 -7 -8 9 10 -11 -12 13 -14 15 -16 -17 18 -19 20 -21 -22 -23 24 -25 26 27 -28 29 -30 -31 -32 -33 34 -35 36 -37 38 -39 40 41 42 -43 -44 -45 46 -47 -48 -49 50 -51 52 -53 -54 -55 56 57 58 -59 -60 61 62 -63 64 -65 66 67 68 69 70 71 -72 73 74 -75 -76 -77 -78 -79 80 81 -82 83 84 -85 -86 87 88 -89 90 91 92 93 -94 95 96 97 98 99 100 -101 -102 -103 104 -105 -106 -107 108 -109 110 111 112 -113 114 -115 116 -117 -118 -119 120 -121 -122 -123 124 125 -126 127 -128 129 -130 -131 -132 133 134 -135 136 137 138 -139 140 -141 142 -143 -144 -145 -146 147 148 149 150 151 -152 153 -154 155 156 157 -158 -159 160 161 -162 -163 -164 165 166 167 -168 -169 170 171 -172 173 174 -175 176 177 -178 179 -180 181 -182 -183 -184 185 -186 187 -188 -189 190 -191 192 193 194 -195 196 -197 -198 199 -200 201 -202 203 204 -205 206 -207 -208 -209 210 -211 212 213 -214 -215 216 217 218 -219 220 221 222 -223 -224 225 226 -227 -228 229 230 -231 -232 -233 234 -235 236 -237 -238 -239 -240 241 242 -243 244 -245 -246 247 -248 -249 250 251 -252 253 -254 -255 -256 257 258 259 260 -261 -262 263 -264 265 -266 -267 -268 -269 270 271 272 -273 274 -275 -276 -277 -278 279 280 281 -282 -283 -284 -285 -286 287 288 -289 -290 291 292 -293 294 -295 296 297 298 -299 300 301 -302 303 304 -305 -306 307 -308 309 310 -311 312 -313 -314 -315 316 317 -318 -319 320 321 322 -323 324 325 326 -327 -328 329 330 -331 332 333 -334 -335 336 -337 338 -339 -340 341 -342 343 344 345 346 -347 -348 349 350 -351 352 353 -354 355 -356 357 358 -359 -360 -361 362 363 364 -365 -366 367 368 369 370 371 372 373 374 375 -376 377 378 379 380 -381 -382 -383 384 -385 -386 387 388 389 -390 -391 -392 393 -394 395 -396 397 -398 399 400 
0.19/0.27	v 0 
0.19/0.27	c Done (mycputime is 0 seconds)

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-3169233-1301695636/watcher-3169233-1301695636 -o /tmp/evaluation-result-3169233-1301695636/solver-3169233-1301695636 -C 2400 -W 1300 -M 7680 shortsattime+ HOME/instance-3169233-1301695636.cnf 311072386 

running on 2 cores: 5,7

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: 3.90 3.98 3.94 3/188 11715
/proc/meminfo: memFree=20746496/32951124 swapFree=67111528/67111528
[pid=11715] ppid=11713 vsize=880896 CPUtime=0 cores=5,7
/proc/11715/stat : 11715 (shortsattime+) R 11713 11715 11044 0 -1 4202496 312 0 0 0 0 0 0 0 25 0 1 0 281161356 902037504 252 33554432000 4194304 4228340 140734227880272 18446744073709551615 4218489 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/11715/statm: 220224 252 116 9 0 217381 0

[startup+0.0505349 s]
/proc/loadavg: 3.90 3.98 3.94 3/188 11715
/proc/meminfo: memFree=20746496/32951124 swapFree=67111528/67111528
[pid=11715] ppid=11713 vsize=880896 CPUtime=0.04 cores=5,7
/proc/11715/stat : 11715 (shortsattime+) R 11713 11715 11044 0 -1 4202496 312 0 0 0 4 0 0 0 25 0 1 0 281161356 902037504 252 33554432000 4194304 4228340 140734227880272 18446744073709551615 4217122 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/11715/statm: 220224 252 116 9 0 217381 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 880896

[startup+0.100525 s]
/proc/loadavg: 3.90 3.98 3.94 3/188 11715
/proc/meminfo: memFree=20746496/32951124 swapFree=67111528/67111528
[pid=11715] ppid=11713 vsize=880896 CPUtime=0.09 cores=5,7
/proc/11715/stat : 11715 (shortsattime+) R 11713 11715 11044 0 -1 4202496 312 0 0 0 9 0 0 0 25 0 1 0 281161356 902037504 252 33554432000 4194304 4228340 140734227880272 18446744073709551615 4218481 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/11715/statm: 220224 252 116 9 0 217381 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 880896

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

[startup+0.200508 s]
/proc/loadavg: 3.90 3.98 3.94 3/188 11715
/proc/meminfo: memFree=20746496/32951124 swapFree=67111528/67111528
[pid=11715] ppid=11713 vsize=880896 CPUtime=0.19 cores=5,7
/proc/11715/stat : 11715 (shortsattime+) R 11713 11715 11044 0 -1 4202496 312 0 0 0 19 0 0 0 25 0 1 0 281161356 902037504 252 33554432000 4194304 4228340 140734227880272 18446744073709551615 4218523 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/11715/statm: 220224 252 116 9 0 217381 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 880896

Child status: 10
Real time (s): 0.270889
CPU time (s): 0.270957
CPU user time (s): 0.269958
CPU system time (s): 0.000999
CPU usage (%): 100.025
Max. virtual memory (cumulated for all children) (KiB): 880896

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.269958
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= 316
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= 4

runsolver used 0.002999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node139 at 2011-04-02 00:07:16
IDJOB=3169233
IDBENCH=82851
IDSOLVER=1578
FILE ID=node139/3169233-1301695636
RUNJOBID= node139-1301690420-11065
PBS_JOBID= 12840697
Free space on /tmp= 71492 MiB

SOLVER NAME= shortsattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v400-c1704-S1960786523-069.SATISFIABLE.cnf
COMMAND LINE= shortsattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3169233-1301695636/watcher-3169233-1301695636 -o /tmp/evaluation-result-3169233-1301695636/solver-3169233-1301695636 -C 2400 -W 1300 -M 7680  shortsattime+ HOME/instance-3169233-1301695636.cnf 311072386

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

MD5SUM BENCH= 23247368fdc20070eb9c682abfb798ef
RANDOM SEED=311072386

node139.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		: 2666.852
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	: 5333.70
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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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	: 5321.49
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		: 2666.852
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		: 2666.852
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		: 2666.852
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:      20746776 kB
Buffers:        351128 kB
Cached:       11516940 kB
SwapCached:          0 kB
Active:        7508736 kB
Inactive:      4426592 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20746776 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           15668 kB
Writeback:           0 kB
AnonPages:       67348 kB
Mapped:          15344 kB
Slab:           204064 kB
PageTables:       5352 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  2017132 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= 71484 MiB
End job on node139 at 2011-04-02 00:07:17