Trace number 299958

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, and are wall clock time (not CPU 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
MXC 2007-02-08SAT 3.3125 3.32573

General information on the benchmark

Namerandom/OnTreshold/3SAT/v400/
unif-k3-r4.26-v400-c1704-S2048803580-17.SAT.shuffled.cnf
MD5SUMfd7d232d07ea82b35604ae65ebcd0d41
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.005998
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 (download as text)

3.27/3.32	c MXC attempting /tmp/evaluation/299958-1171880548/instance-299958-1171880548.cnf
3.27/3.32	c 0 assignments made, starting to guess now
3.27/3.32	c ===================================[MXC]=====================================
3.27/3.32	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
3.27/3.32	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
3.27/3.32	c =============================================================================
3.27/3.32	c |         0 |    1704     5112 |    1000       0       0     nan |  0.000 % |
3.27/3.32	c |       100 |    1704     5112 |    1100     100    1822    18.2 |  0.000 % |
3.27/3.32	c |       250 |    1704     5112 |    1210     250    4798    19.2 |  0.000 % |
3.27/3.32	c |       475 |    1704     5112 |    1331     475    9666    20.3 |  0.000 % |
3.27/3.32	c |       813 |    1704     5112 |    1464     813   16537    20.3 |  0.000 % |
3.27/3.32	c |      1319 |    1704     5112 |    1610    1319   26714    20.3 |  0.000 % |
3.27/3.32	c |      2078 |    1704     5112 |    1771    1272   24045    18.9 |  0.000 % |
3.27/3.32	c |      3217 |    1704     5112 |    1948    1527   31513    20.6 |  0.000 % |
3.27/3.32	c |      4926 |    1704     5112 |    2143    1288   22176    17.2 |  0.000 % |
3.27/3.32	c |      7488 |    1704     5112 |    2357    1705   30955    18.2 |  0.000 % |
3.27/3.32	c |     11332 |    1704     5112 |    2593    2013   39510    19.6 |  0.000 % |
3.27/3.32	c |     17098 |    1704     5112 |    2853    1301   22245    17.1 |  0.000 % |
3.27/3.32	c |     25747 |    1704     5112 |    3138    2822   55331    19.6 |  0.000 % |
3.27/3.32	c |     38721 |    1704     5112 |    3452    1686   31471    18.7 |  0.000 % |
3.27/3.32	c |     58182 |    1704     5112 |    3797    2165   39562    18.3 |  0.000 % |
3.27/3.32	c 3.310s elapsed
3.27/3.32	c restarts: 14
3.27/3.32	c decisions: 75223
3.27/3.32	c propagations: 4111390
3.27/3.32	c conflicts: 62489
3.27/3.32	s SATISFIABLE
3.27/3.32	v -194 -372 -182 -263 -123 -213 -282 -101 162 -103 -278 -148 -55 -86 -306 -84 359 -164 347 -68 5 380 -97 75 144 -327 154 -130 -44 -262 140 -221 197 133 224 180 -300 -348 393 -303 -204 -40 228 -293 321 -249 313 290 299 -245 -258 189 1 382 230 307 -286 108 61 191 -274 -232 -297 -276 -211 -256 21 -318 -248 384 -169 74 30 322 269 -292 142 336 254 -363 43 186 227 39 212 -288 53 391 70 20 325 -233 -16 283 91 63 314 -272 -67 -266 147 195 330 35 -328 281 -312 80 -205 54 -342 -244 190 247 355 15 -58 -83 287 -351 -284 -289 319 -120 -151 76 388 -98 -65 -89 275 -206 200 -356 166 -27 320 -231 124 -399 -64 -47 -381 252 305 -156 192 36 88 237 398 -214 -238 -371 -333 49 -106 277 -188 -145 -392 129 117 111 350 -82 -310 358 -337 -338 257 38 -210 323 326 135 173 -94 378 366 28 -201 -34 -116 -163 -364 375 -198 122 11 -304 -208 -377 170 -157 -253 -271 2 -119 -143 203 -159 -187 -29 46 3 160 -174 -295 -217 168 14 -48 -139 367 370 -59 -215 -110 386 179 -41 -73 104 -105 -60 -128 -125 -185 171 158 261 -291 -207 -220 78 132 7 -317 26 93 -335 52 -45 113 -136 -329 -199 102 -268 -273 181 -279 131 373 -222 -255 -118 -176 265 -229 -385 -315 141 -92 -6 150 -251 344 -209 343 400 -62 4 346 -397 376 -112 -341 369 -302 285 -153 -362 360 -12 -308 -175 -115 -79 -383 -353 -56 25 -23 -396 -138 -126 -309 87 -81 236 107 242 294 96 340 -331 389 259 161 -235 100 24 66 172 10 -146 332 -345 183 -9 167 19 339 216 -22 -137 196 -218 -155 334 -85 390 127 234 368 -184 77 -352 -246 33 114 -260 -298 -109 31 -243 -365 264 -178 -37 -280 -374 -311 -219 -301 -95 -32 -18 -202 51 -267 -17 -226 -241 90 -71 -57 -316 -69 -13 250 -394 354 -165 -324 -149 -152 -8 -270 -395 -50 -193 -177 -239 -134 -42 -240 -379 -349 -72 -223 -99 -357 -296 -121 -387 -225 -361 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node23/watcher-299958-1171880548 -o ROOT/results/node23/solver-299958-1171880548 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/299958-1171880548/mxc /tmp/evaluation/299958-1171880548/instance-299958-1171880548.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.98 0.98 0.99 3/77 12303
/proc/meminfo: memFree=695008/2055920 swapFree=4144472/4192956
[pid=12303] ppid=12301 vsize=1064 CPUtime=0
/proc/12303/stat : 12303 (mxc) R 12301 12303 4436 0 -1 4194304 119 0 0 0 0 0 0 0 18 0 1 0 208008683 1089536 103 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519194 0 0 4096 0 0 0 0 17 1 0 0
/proc/12303/statm: 266 103 57 122 0 140 0

[startup+0.10736 s]
/proc/loadavg: 0.98 0.98 0.99 3/77 12303
/proc/meminfo: memFree=695008/2055920 swapFree=4144472/4192956
[pid=12303] ppid=12301 vsize=1204 CPUtime=0.1
/proc/12303/stat : 12303 (mxc) R 12301 12303 4436 0 -1 4194304 188 0 0 0 10 0 0 0 18 0 1 0 208008683 1232896 170 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519582 0 0 4096 0 0 0 0 17 1 0 0
/proc/12303/statm: 301 170 67 122 0 175 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1204

[startup+0.515406 s]
/proc/loadavg: 0.98 0.98 0.99 3/77 12303
/proc/meminfo: memFree=695008/2055920 swapFree=4144472/4192956
[pid=12303] ppid=12301 vsize=1456 CPUtime=0.51
/proc/12303/stat : 12303 (mxc) R 12301 12303 4436 0 -1 4194304 228 0 0 0 51 0 0 0 21 0 1 0 208008683 1490944 210 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519587 0 0 4096 0 0 0 0 17 1 0 0
/proc/12303/statm: 364 210 67 122 0 238 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 1456

[startup+1.3355 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 12304
/proc/meminfo: memFree=694232/2055920 swapFree=4144472/4192956
[pid=12303] ppid=12301 vsize=1588 CPUtime=1.33
/proc/12303/stat : 12303 (mxc) R 12301 12303 4436 0 -1 4194304 265 0 0 0 133 0 0 0 25 0 1 0 208008683 1626112 247 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519951 0 0 4096 0 0 0 0 17 1 0 0
/proc/12303/statm: 397 247 67 122 0 271 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 1588

[startup+2.97168 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 12304
/proc/meminfo: memFree=693912/2055920 swapFree=4144472/4192956
[pid=12303] ppid=12301 vsize=1720 CPUtime=2.96
/proc/12303/stat : 12303 (mxc) R 12301 12303 4436 0 -1 4194304 303 0 0 0 296 0 0 0 25 0 1 0 208008683 1761280 285 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134528224 0 0 4096 0 0 0 0 17 1 0 0
/proc/12303/statm: 430 285 67 122 0 304 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 1720

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

[startup+3.27772 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 12304
/proc/meminfo: memFree=693912/2055920 swapFree=4144472/4192956
[pid=12303] ppid=12301 vsize=1720 CPUtime=3.27
/proc/12303/stat : 12303 (mxc) R 12301 12303 4436 0 -1 4194304 317 0 0 0 327 0 0 0 25 0 1 0 208008683 1761280 299 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/12303/statm: 430 299 67 122 0 304 0
Current children cumulated CPU time (s) 3.27
Current children cumulated vsize (KiB) 1720

Child status: 10
Real time (s): 3.32573
CPU time (s): 3.3125
CPU user time (s): 3.3095
CPU system time (s): 0.002999
CPU usage (%): 99.6021
Max. virtual memory (cumulated for all children) (KiB): 1720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.3095
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 319
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= 9
involuntary context switches= 2

runsolver used 0.005999 second user time and 0.014997 second system time

The end

Launcher Data (download as text)

Begin job on node23 on Mon Feb 19 10:22:28 UTC 2007

IDJOB= 299958
IDBENCH= 20023
IDSOLVER= 107
FILE ID= node23/299958-1171880548

PBS_JOBID= 3839661

Free space on /tmp= 66563 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v400/unif-k3-r4.26-v400-c1704-S2048803580-17.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/299958-1171880548/mxc /tmp/evaluation/299958-1171880548/instance-299958-1171880548.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node23/watcher-299958-1171880548 -o ROOT/results/node23/solver-299958-1171880548 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/299958-1171880548/mxc /tmp/evaluation/299958-1171880548/instance-299958-1171880548.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  fd7d232d07ea82b35604ae65ebcd0d41

RANDOM SEED= 324567423

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node23.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.216
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.216
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:        695416 kB
Buffers:         53500 kB
Cached:        1166208 kB
SwapCached:      16396 kB
Active:         900748 kB
Inactive:       343308 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        695416 kB
SwapTotal:     4192956 kB
SwapFree:      4144472 kB
Dirty:             632 kB
Writeback:           0 kB
Mapped:          29944 kB
Slab:           102136 kB
Committed_AS:   667420 kB
PageTables:       1696 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66563 MiB

End job on node23 on Mon Feb 19 10:22:32 UTC 2007