Trace number 3426996

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
sattime2011 2011-03-02SAT 0.133979 0.134665

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v450-c1917-S2083898043-071.SATISFIABLE.cnf
MD5SUM07e93672799a66cb8290b6b816b1a83d
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 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 

0.10/0.13	c 0 clauses are redundant and removed
0.10/0.13	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.10/0.13	c 0 vars are fixed and 0 clauses are removed after lookahead
0.10/0.13	c initial seed is 2081133506
0.10/0.13	c try=1 flip j=292015 walk=248626 seed 2081133523
0.10/0.13	c A solution is found
0.10/0.13	s SATISFIABLE
0.10/0.13	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 
0.10/0.13	v 0 
0.10/0.13	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: 961)

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-3426996-1306781917/watcher-3426996-1306781917 -o /tmp/evaluation-result-3426996-1306781917/solver-3426996-1306781917 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426996-1306781917.cnf 2081130049 

running on 4 cores: 1,3,5,7

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): 5100 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: 1.90 2.02 2.00 4/442 23624
/proc/meminfo: memFree=5039824/32950928 swapFree=54619744/67111528
[pid=23624] ppid=23620 vsize=1185716 CPUtime=0.01 cores=1,3,5,7
/proc/23624/stat : 23624 (sattime2011) R 23620 23624 22677 0 -1 4202496 352 0 0 0 1 0 0 0 18 0 1 0 868422373 1214173184 296 33554432000 4194304 4230460 140733350380288 18446744073709551615 4200547 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23624/statm: 296429 296 117 9 0 293586 0

[startup+0.0770379 s]
/proc/loadavg: 1.90 2.02 2.00 4/442 23624
/proc/meminfo: memFree=5039824/32950928 swapFree=54619744/67111528
[pid=23624] ppid=23620 vsize=1185716 CPUtime=0.07 cores=1,3,5,7
/proc/23624/stat : 23624 (sattime2011) R 23620 23624 22677 0 -1 4202496 352 0 0 0 7 0 0 0 18 0 1 0 868422373 1214173184 296 33554432000 4194304 4230460 140733350380288 18446744073709551615 4219843 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23624/statm: 296429 296 117 9 0 293586 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1185716

[startup+0.101036 s]
/proc/loadavg: 1.90 2.02 2.00 4/442 23624
/proc/meminfo: memFree=5039824/32950928 swapFree=54619744/67111528
[pid=23624] ppid=23620 vsize=1185716 CPUtime=0.1 cores=1,3,5,7
/proc/23624/stat : 23624 (sattime2011) R 23620 23624 22677 0 -1 4202496 352 0 0 0 10 0 0 0 18 0 1 0 868422373 1214173184 296 33554432000 4194304 4230460 140733350380288 18446744073709551615 4199714 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23624/statm: 296429 296 117 9 0 293586 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1185716

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

Child status: 10
Real time (s): 0.134665
CPU time (s): 0.133979
CPU user time (s): 0.133979
CPU system time (s): 0
CPU usage (%): 99.4905
Max. virtual memory (cumulated for all children) (KiB): 1185716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.133979
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= 356
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= 3
involuntary context switches= 1

runsolver used 0.006998 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node114 at 2011-05-30 20:58:37
IDJOB=3426996
IDBENCH=82968
IDSOLVER=1924
FILE ID=node114/3426996-1306781917
RUNJOBID= node114-1306781917-23605
PBS_JOBID= 13475010
Free space on /tmp= 57144 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v450-c1917-S2083898043-071.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426996-1306781917/watcher-3426996-1306781917 -o /tmp/evaluation-result-3426996-1306781917/solver-3426996-1306781917 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426996-1306781917.cnf 2081130049

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

MD5SUM BENCH= 07e93672799a66cb8290b6b816b1a83d
RANDOM SEED=2081130049

node114.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		: 2666.848
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		: 2666.848
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	: 5226.15
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		: 2666.848
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		: 2666.848
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	: 5332.73
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		: 2666.848
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		: 2666.848
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		: 2666.848
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	: 5332.74
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		: 2666.848
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:     32950928 kB
MemFree:       5040020 kB
Buffers:        301272 kB
Cached:       22507488 kB
SwapCached:      19096 kB
Active:       10325244 kB
Inactive:     16900704 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       5040020 kB
SwapTotal:    67111528 kB
SwapFree:     54619744 kB
Dirty:           15920 kB
Writeback:           0 kB
AnonPages:     4406172 kB
Mapped:          26668 kB
Slab:           555080 kB
PageTables:      61644 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 108157288 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= 57128 MiB
End job on node114 at 2011-05-30 20:58:37