Trace number 3154313

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
sattime 2011-03-02SAT 0.055991 0.057271

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 

0.00/0.05	c 0 clauses are redundant and removed
0.00/0.05	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.05	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.05	c initial seed is 1461920132
0.00/0.05	c try=1 flip j=130692 walk=116381 seed 1461920149
0.00/0.05	c A solution is found
0.00/0.05	s SATISFIABLE
0.00/0.05	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 
0.00/0.05	v 0 
0.00/0.05	c Done (mycputime is 0 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 977)

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-3154313-1307640395/watcher-3154313-1307640395 -o /tmp/evaluation-result-3154313-1307640395/solver-3154313-1307640395 -C 2400 -W 1300 -M 7680 sattime HOME/instance-3154313-1307640395.cnf 1461920132 

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: 3.99 3.28 3.26 4/189 12008
/proc/meminfo: memFree=32615616/32950928 swapFree=67055428/67111528
[pid=12008] ppid=12006 vsize=990404 CPUtime=0 cores=4,6
/proc/12008/stat : 12008 (sattime) R 12006 12008 9857 0 -1 4202496 341 0 0 0 0 0 0 0 25 0 1 0 875636592 1014173696 284 33554432000 4194304 4228548 140736805159408 18446744073709551615 4219035 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/12008/statm: 247601 284 116 9 0 244758 0

[startup+0.0082059 s]
/proc/loadavg: 3.99 3.28 3.26 4/189 12008
/proc/meminfo: memFree=32615616/32950928 swapFree=67055428/67111528
[pid=12008] ppid=12006 vsize=990404 CPUtime=0 cores=4,6
/proc/12008/stat : 12008 (sattime) R 12006 12008 9857 0 -1 4202496 341 0 0 0 0 0 0 0 25 0 1 0 875636592 1014173696 284 33554432000 4194304 4228548 140736805159408 18446744073709551615 4219115 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/12008/statm: 247601 284 116 9 0 244758 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 990404

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

[startup+0.0082059 s]
/proc/loadavg: 3.99 3.28 3.26 4/189 12008
/proc/meminfo: memFree=32615616/32950928 swapFree=67055428/67111528
[pid=12008] ppid=12006 vsize=990404 CPUtime=0 cores=4,6
/proc/12008/stat : 12008 (sattime) R 12006 12008 9857 0 -1 4202496 341 0 0 0 0 0 0 0 25 0 1 0 875636592 1014173696 284 33554432000 4194304 4228548 140736805159408 18446744073709551615 4219115 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/12008/statm: 247601 284 116 9 0 244758 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 990404

Child status: 10
Real time (s): 0.057271
CPU time (s): 0.055991
CPU user time (s): 0.055991
CPU system time (s): 0
CPU usage (%): 97.765
Max. virtual memory (cumulated for all children) (KiB): 990404

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.055991
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= 345
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= 1

runsolver used 0.003999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node148 at 2011-06-09 19:26:35
IDJOB=3154313
IDBENCH=82820
IDSOLVER=1564
FILE ID=node148/3154313-1307640395
RUNJOBID= node148-1307640103-11526
PBS_JOBID= 13549344
Free space on /tmp= 74140 MiB

SOLVER NAME= sattime 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v450-c1917-S1915396418-078.SATISFIABLE.cnf
COMMAND LINE= sattime BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3154313-1307640395/watcher-3154313-1307640395 -o /tmp/evaluation-result-3154313-1307640395/solver-3154313-1307640395 -C 2400 -W 1300 -M 7680  sattime HOME/instance-3154313-1307640395.cnf 1461920132

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

MD5SUM BENCH= 6f66bb3f92a8c8e75d9af481af0c129f
RANDOM SEED=1461920132

node148.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		: 2666.854
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		: 2666.854
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		: 2666.854
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	: 5332.83
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		: 2666.854
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		: 2666.854
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	: 5332.82
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		: 2666.854
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		: 2666.854
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		: 2666.854
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:     32950928 kB
MemFree:      32615920 kB
Buffers:         27116 kB
Cached:         144272 kB
SwapCached:       8788 kB
Active:         136444 kB
Inactive:        60840 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      32615920 kB
SwapTotal:    67111528 kB
SwapFree:     67055428 kB
Dirty:            7948 kB
Writeback:           0 kB
AnonPages:       24264 kB
Mapped:          13320 kB
Slab:            72164 kB
PageTables:       5448 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  3212696 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= 74132 MiB
End job on node148 at 2011-06-09 19:26:35