Trace number 426824

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 23.9484 23.9682

General information on the benchmark

Namerandom/OnTreshold/3SAT/v360/
unif-k3-r4.26-v360-c1533-S1806915801-08.SAT.shuffled.cnf
MD5SUMcf84a3dca136fb4dbd89b4b968109201
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.023996
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1533
Sum of the clauses size4599
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31533
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

23.89/23.96	c MXC attempting /tmp/evaluation/426824-1177829299/instance-426824-1177829299.cnf
23.89/23.96	c 0 assignments made, starting to guess now
23.89/23.96	c ===================================[MXC]=====================================
23.89/23.96	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
23.89/23.96	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
23.89/23.96	c =============================================================================
23.89/23.96	c |         0 |    1533     4599 |    1000       0       0     nan |  0.000 % |
23.89/23.96	c |       102 |    1533     4599 |    1100     102    1684    16.5 |  0.000 % |
23.89/23.96	c |       252 |    1533     4599 |    1210     252    4171    16.6 |  0.000 % |
23.89/23.96	c |       478 |    1533     4599 |    1331     478    8055    16.9 |  0.000 % |
23.89/23.96	c |       817 |    1533     4599 |    1464     817   13804    16.9 |  0.000 % |
23.89/23.96	c |      1323 |    1533     4599 |    1610    1323   22998    17.4 |  0.000 % |
23.89/23.96	c |      2083 |    1533     4599 |    1771    1277   22607    17.7 |  0.000 % |
23.89/23.96	c |      3223 |    1533     4599 |    1948    1531   26640    17.4 |  0.000 % |
23.89/23.96	c |      4932 |    1533     4599 |    2143    1291   20924    16.2 |  0.000 % |
23.89/23.96	c |      7495 |    1533     4599 |    2357    1714   27020    15.8 |  0.000 % |
23.89/23.96	c |     11339 |    1533     4599 |    2593    2022   32852    16.2 |  0.000 % |
23.89/23.96	c |     17107 |    1533     4599 |    2853    1310   19499    14.9 |  0.000 % |
23.89/23.96	c |     25756 |    1533     4599 |    3138    2827   46709    16.5 |  0.000 % |
23.89/23.96	c |     38731 |    1533     4599 |    3452    1692   25124    14.8 |  0.000 % |
23.89/23.96	c |     58192 |    1533     4599 |    3797    2173   36343    16.7 |  0.000 % |
23.89/23.96	c |     87384 |    1533     4599 |    4177    2901   45904    15.8 |  0.000 % |
23.89/23.96	c |    131173 |    1533     4599 |    4594    2868   42366    14.8 |  0.000 % |
23.89/23.96	c |    196857 |    1533     4599 |    5054    4277   70712    16.5 |  0.000 % |
23.89/23.96	c |    295384 |    1533     4599 |    5559    4310   69152    16.0 |  0.000 % |
23.89/23.96	c 23.950s elapsed
23.89/23.96	c restarts: 18
23.89/23.96	c decisions: 479906
23.89/23.96	c propagations: 23450319
23.89/23.96	c conflicts: 411024
23.89/23.96	s SATISFIABLE
23.89/23.96	v -54 -356 -6 -301 -65 -270 316 341 -260 146 -48 186 28 207 -39 135 289 221 193 140 123 166 194 -326 334 -49 203 -153 355 -353 133 240 262 -236 -42 57 -40 -285 -181 -17 198 150 268 -258 53 -208 34 93 197 232 90 -275 -96 315 41 190 -88 347 2 170 -172 -237 346 332 -298 27 -199 348 15 115 151 161 -116 81 -89 16 -92 149 -18 -305 176 -276 60 328 -21 100 228 85 -79 -254 -350 117 154 287 214 235 184 -155 246 80 46 78 -233 -111 165 43 -144 271 -255 209 317 342 308 333 52 -68 336 -9 -244 -157 200 291 -249 38 -195 227 -14 277 -185 82 -171 -243 156 -322 -147 87 324 321 -56 242 72 120 -86 -4 -196 11 -234 -250 215 178 -281 297 168 137 -59 12 259 25 -138 -292 -219 238 -338 -24 134 29 160 -174 290 -312 -279 309 358 63 280 204 -304 263 -67 267 -8 51 -216 114 -119 -23 -61 357 294 -19 62 113 -252 -66 -94 -143 -136 340 225 -70 -182 303 124 272 284 109 -127 256 -343 319 -22 175 296 351 187 339 -101 283 179 13 30 360 3 -141 -105 35 253 359 251 310 -320 274 344 -266 -257 -325 189 202 241 -32 77 -231 -330 -97 217 205 -201 -36 210 84 -145 -191 -98 125 229 -7 91 103 -261 226 33 -131 112 -318 -295 307 -126 -352 314 -121 264 -118 223 -337 26 20 -282 -47 -177 -99 -73 163 -95 58 169 159 -107 -245 -206 -354 102 -55 -164 -192 -349 -288 -345 -211 -327 122 -273 -335 306 -286 128 313 -108 69 158 -162 -213 71 5 106 -50 -10 -230 -265 45 329 183 222 1 -299 -220 311 44 -173 -130 212 74 -278 -148 224 -180 -239 -300 -248 -104 -110 -302 -31 -129 -37 -293 -247 -142 -132 -218 -188 -75 -83 -331 -323 -152 -269 -76 -167 -139 -64 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node68/watcher-426824-1177829299 -o ROOT/results/node68/solver-426824-1177829299 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/426824-1177829299/mxc /tmp/evaluation/426824-1177829299/instance-426824-1177829299.cnf 

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): 7500 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: 0.99 0.97 1.04 3/64 14647
/proc/meminfo: memFree=1499000/2055920 swapFree=4183928/4192956
[pid=14647] ppid=14645 vsize=932 CPUtime=0
/proc/14647/stat : 14647 (mxc) R 14645 14647 14300 0 -1 4194304 115 0 0 0 0 0 0 0 18 0 1 0 258919443 954368 100 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134531184 0 0 4096 0 0 0 0 17 1 0 0
/proc/14647/statm: 233 100 57 122 0 107 0

[startup+0.0711149 s]
/proc/loadavg: 0.99 0.97 1.04 3/64 14647
/proc/meminfo: memFree=1499000/2055920 swapFree=4183928/4192956
[pid=14647] ppid=14645 vsize=1204 CPUtime=0.06
/proc/14647/stat : 14647 (mxc) R 14645 14647 14300 0 -1 4194304 173 0 0 0 6 0 0 0 18 0 1 0 258919443 1232896 156 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134535083 0 0 4096 0 0 0 0 17 1 0 0
/proc/14647/statm: 301 156 67 122 0 175 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1204

[startup+0.101116 s]
/proc/loadavg: 0.99 0.97 1.04 3/64 14647
/proc/meminfo: memFree=1499000/2055920 swapFree=4183928/4192956
[pid=14647] ppid=14645 vsize=1204 CPUtime=0.09
/proc/14647/stat : 14647 (mxc) R 14645 14647 14300 0 -1 4194304 181 0 0 0 9 0 0 0 18 0 1 0 258919443 1232896 164 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134530135 0 0 4096 0 0 0 0 17 1 0 0
/proc/14647/statm: 301 164 67 122 0 175 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1204

[startup+0.301133 s]
/proc/loadavg: 0.99 0.97 1.04 3/64 14647
/proc/meminfo: memFree=1499000/2055920 swapFree=4183928/4192956
[pid=14647] ppid=14645 vsize=1336 CPUtime=0.29
/proc/14647/stat : 14647 (mxc) R 14645 14647 14300 0 -1 4194304 201 0 0 0 29 0 0 0 19 0 1 0 258919443 1368064 184 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134530856 0 0 4096 0 0 0 0 17 1 0 0
/proc/14647/statm: 334 184 67 122 0 208 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1336

[startup+0.70117 s]
/proc/loadavg: 0.99 0.97 1.04 3/64 14647
/proc/meminfo: memFree=1499000/2055920 swapFree=4183928/4192956
[pid=14647] ppid=14645 vsize=1336 CPUtime=0.69
/proc/14647/stat : 14647 (mxc) R 14645 14647 14300 0 -1 4194304 226 0 0 0 69 0 0 0 22 0 1 0 258919443 1368064 209 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134530213 0 0 4096 0 0 0 0 17 1 0 0
/proc/14647/statm: 334 209 67 122 0 208 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1336

[startup+1.50124 s]
/proc/loadavg: 0.99 0.97 1.04 2/65 14648
/proc/meminfo: memFree=1498352/2055920 swapFree=4183928/4192956
[pid=14647] ppid=14645 vsize=1468 CPUtime=1.49
/proc/14647/stat : 14647 (mxc) R 14645 14647 14300 0 -1 4194304 253 0 0 0 149 0 0 0 25 0 1 0 258919443 1503232 236 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/14647/statm: 367 236 67 122 0 241 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1468

[startup+3.10139 s]
/proc/loadavg: 0.99 0.97 1.04 2/65 14648
/proc/meminfo: memFree=1498032/2055920 swapFree=4183928/4192956
[pid=14647] ppid=14645 vsize=1716 CPUtime=3.09
/proc/14647/stat : 14647 (mxc) R 14645 14647 14300 0 -1 4194304 295 0 0 0 309 0 0 0 25 0 1 0 258919443 1757184 278 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519987 0 0 4096 0 0 0 0 17 1 0 0
/proc/14647/statm: 429 278 67 122 0 303 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1716

[startup+6.30168 s]
/proc/loadavg: 0.99 0.97 1.04 2/65 14648
/proc/meminfo: memFree=1497776/2055920 swapFree=4183928/4192956
[pid=14647] ppid=14645 vsize=1848 CPUtime=6.29
/proc/14647/stat : 14647 (mxc) R 14645 14647 14300 0 -1 4194304 332 0 0 0 629 0 0 0 25 0 1 0 258919443 1892352 315 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519964 0 0 4096 0 0 0 0 17 1 0 0
/proc/14647/statm: 462 315 67 122 0 336 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1848

[startup+12.7013 s]
/proc/loadavg: 0.99 0.97 1.04 2/65 14648
/proc/meminfo: memFree=1497520/2055920 swapFree=4183928/4192956
[pid=14647] ppid=14645 vsize=2092 CPUtime=12.69
/proc/14647/stat : 14647 (mxc) R 14645 14647 14300 0 -1 4194304 393 0 0 0 1269 0 0 0 25 0 1 0 258919443 2142208 376 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/14647/statm: 523 376 67 122 0 397 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2092

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

[startup+19.1018 s]
/proc/loadavg: 0.99 0.97 1.04 2/65 14648
/proc/meminfo: memFree=1497328/2055920 swapFree=4183928/4192956
[pid=14647] ppid=14645 vsize=2224 CPUtime=19.09
/proc/14647/stat : 14647 (mxc) R 14645 14647 14300 0 -1 4194304 435 0 0 0 1909 0 0 0 25 0 1 0 258919443 2277376 418 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519251 0 0 4096 0 0 0 0 17 1 0 0
/proc/14647/statm: 556 418 67 122 0 430 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 2224

[startup+22.3011 s]
/proc/loadavg: 0.99 0.97 1.04 2/65 14648
/proc/meminfo: memFree=1497328/2055920 swapFree=4183928/4192956
[pid=14647] ppid=14645 vsize=2224 CPUtime=22.29
/proc/14647/stat : 14647 (mxc) R 14645 14647 14300 0 -1 4194304 441 0 0 0 2229 0 0 0 25 0 1 0 258919443 2277376 424 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519200 0 0 4096 0 0 0 0 17 1 0 0
/proc/14647/statm: 556 424 67 122 0 430 0
Current children cumulated CPU time (s) 22.29
Current children cumulated vsize (KiB) 2224

[startup+23.1052 s]
/proc/loadavg: 0.99 0.97 1.04 2/65 14648
/proc/meminfo: memFree=1497264/2055920 swapFree=4183928/4192956
[pid=14647] ppid=14645 vsize=2224 CPUtime=23.09
/proc/14647/stat : 14647 (mxc) R 14645 14647 14300 0 -1 4194304 445 0 0 0 2309 0 0 0 25 0 1 0 258919443 2277376 428 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519261 0 0 4096 0 0 0 0 17 1 0 0
/proc/14647/statm: 556 428 67 122 0 430 0
Current children cumulated CPU time (s) 23.09
Current children cumulated vsize (KiB) 2224

[startup+23.5012 s]
/proc/loadavg: 0.99 0.97 1.04 2/65 14648
/proc/meminfo: memFree=1497264/2055920 swapFree=4183928/4192956
[pid=14647] ppid=14645 vsize=2224 CPUtime=23.49
/proc/14647/stat : 14647 (mxc) R 14645 14647 14300 0 -1 4194304 445 0 0 0 2349 0 0 0 25 0 1 0 258919443 2277376 428 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134530042 0 0 4096 0 0 0 0 17 1 0 0
/proc/14647/statm: 556 428 67 122 0 430 0
Current children cumulated CPU time (s) 23.49
Current children cumulated vsize (KiB) 2224

[startup+23.9013 s]
/proc/loadavg: 0.99 0.97 1.04 2/65 14648
/proc/meminfo: memFree=1497264/2055920 swapFree=4183928/4192956
[pid=14647] ppid=14645 vsize=2224 CPUtime=23.89
/proc/14647/stat : 14647 (mxc) R 14645 14647 14300 0 -1 4194304 445 0 0 0 2389 0 0 0 25 0 1 0 258919443 2277376 428 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134528498 0 0 4096 0 0 0 0 17 1 0 0
/proc/14647/statm: 556 428 67 122 0 430 0
Current children cumulated CPU time (s) 23.89
Current children cumulated vsize (KiB) 2224

Child status: 10
Real time (s): 23.9682
CPU time (s): 23.9484
CPU user time (s): 23.9484
CPU system time (s): 0
CPU usage (%): 99.9171
Max. virtual memory (cumulated for all children) (KiB): 2224

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 23.9484
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= 447
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= 62

runsolver used 0.019996 second user time and 0.051992 second system time

The end

Launcher Data (download as text)

Begin job on node68 on Sun Apr 29 06:48:19 UTC 2007

IDJOB= 426824
IDBENCH= 19996
IDSOLVER= 174
FILE ID= node68/426824-1177829299

PBS_JOBID= 4718275

Free space on /tmp= 66564 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v360/unif-k3-r4.26-v360-c1533-S1806915801-08.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/426824-1177829299/mxc /tmp/evaluation/426824-1177829299/instance-426824-1177829299.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node68/watcher-426824-1177829299 -o ROOT/results/node68/solver-426824-1177829299 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/426824-1177829299/mxc /tmp/evaluation/426824-1177829299/instance-426824-1177829299.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  cf84a3dca136fb4dbd89b4b968109201

RANDOM SEED= 75307026

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node68.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:       1499344 kB
Buffers:         50448 kB
Cached:         424672 kB
SwapCached:       3056 kB
Active:         255300 kB
Inactive:       229528 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1499344 kB
SwapTotal:     4192956 kB
SwapFree:      4183928 kB
Dirty:             600 kB
Writeback:           0 kB
Mapped:          15696 kB
Slab:            57728 kB
Committed_AS:  2963460 kB
PageTables:       1380 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= 66564 MiB

End job on node68 on Sun Apr 29 06:48:43 UTC 2007