Trace number 3157997

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
csls prob-4coresSAT 0.015997 0.00862907

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v450-c1917-S1915396418-078.SATISFIABLE.cnf
MD5SUM6f66bb3f92a8c8e75d9af481af0c129f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.003999
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 

0.00/0.00	c Input seed 1072981881 used seed: 1072981881
0.00/0.00	s SATISFIABLE
0.00/0.00	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 -399 400 401 402 403 404 -405 406 -407 -408 409 -410 -411 412 -413 -414 -415 416 417 418 419 -420 421 422 423 424 -425 426 427 428 429 430 -431 432 433 434 -435 -436 -437 -438 -439 -440 -441 -442 -443 444 -445 446 -447 448 -449 -450 0
0.00/0.00	c Min false clauses Core[0]: 0
0.00/0.00	c Min false clauses Core[1]: 4
0.00/0.00	c Min false clauses Core[2]: 8
0.00/0.00	c Min false clauses Core[3]: 186

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-3157997-1304089660/watcher-3157997-1304089660 -o /tmp/evaluation-result-3157997-1304089660/solver-3157997-1304089660 -C 4800 -W 1300 -M 15500 HOME/csls-prob -maxcores 4 HOME/instance-3157997-1304089660.cnf 4 1072981881 

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

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 4800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 4830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 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: 8.39 8.32 8.19 7/184 22790
/proc/meminfo: memFree=25384880/32951124 swapFree=67111524/67111528
[pid=22790] ppid=22788 vsize=124508 CPUtime=0 cores=0,2,4,6
/proc/22790/stat : 22790 (csls-prob) R 22788 22790 22519 0 -1 4202496 683 0 0 0 0 0 0 0 25 0 4 0 520564190 127496192 598 33554432000 4194304 4563014 140735333839728 18446744073709551615 232335440418 0 0 4096 16384 18446744073709551615 0 0 17 4 0 0 0
/proc/22790/statm: 31127 598 331 91 0 26645 0
[pid=22790/tid=22791] ppid=22788 vsize=124508 CPUtime=0 cores=0,2,4,6
/proc/22790/task/22791/stat : 22791 (csls-prob) R 22788 22790 22519 0 -1 4202560 92 0 0 0 0 0 0 0 25 0 4 0 520564190 127496192 599 33554432000 4194304 4563014 140735333839728 18446744073709551615 4471037 0 0 4096 16384 0 0 0 -1 2 0 0 0
[pid=22790/tid=22792] ppid=22788 vsize=124508 CPUtime=0 cores=0,2,4,6
/proc/22790/task/22792/stat : 22792 (csls-prob) R 22788 22790 22519 0 -1 4202560 72 0 0 0 0 0 0 0 25 0 4 0 520564190 127496192 599 33554432000 4194304 4563014 140735333839728 18446744073709551615 232335892283 0 0 4096 16384 0 0 0 -1 0 0 0 0
[pid=22790/tid=22793] ppid=22788 vsize=124508 CPUtime=0 cores=0,2,4,6
/proc/22790/task/22793/stat : 22793 (csls-prob) R 22788 22790 22519 0 -1 4202560 6 0 0 0 0 0 0 0 25 0 4 0 520564190 127496192 599 33554432000 4194304 4563014 140735333839728 18446744073709551615 4309376 0 0 4096 16384 0 0 0 -1 4 0 0 0

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

Child status: 0
Real time (s): 0.00862907
CPU time (s): 0.015997
CPU user time (s): 0.015997
CPU system time (s): 0
CPU usage (%): 185.385
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.015997
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= 859
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= 44
involuntary context switches= 5

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node132 at 2011-04-29 17:07:40
IDJOB=3157997
IDBENCH=82820
IDSOLVER=1568
FILE ID=node132/3157997-1304089660
RUNJOBID= node132-1304087252-22537
PBS_JOBID= 13170555
Free space on /tmp= 71872 MiB

SOLVER NAME= csls prob-4cores
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v450-c1917-S1915396418-078.SATISFIABLE.cnf
COMMAND LINE= HOME/csls-prob -maxcores 4 BENCHNAME NBCORE RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157997-1304089660/watcher-3157997-1304089660 -o /tmp/evaluation-result-3157997-1304089660/solver-3157997-1304089660 -C 4800 -W 1300 -M 15500  HOME/csls-prob -maxcores 4 HOME/instance-3157997-1304089660.cnf 4 1072981881

TIME LIMIT= 4800 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 6f66bb3f92a8c8e75d9af481af0c129f
RANDOM SEED=1072981881

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:      25385044 kB
Buffers:        772756 kB
Cached:        6227460 kB
SwapCached:          4 kB
Active:        2081524 kB
Inactive:      4987616 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      25385044 kB
SwapTotal:    67111528 kB
SwapFree:     67111524 kB
Dirty:             800 kB
Writeback:           0 kB
AnonPages:       68252 kB
Mapped:          15120 kB
Slab:           435468 kB
PageTables:       4784 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   259456 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= 71872 MiB
End job on node132 at 2011-04-29 17:07:40