Trace number 298851

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 23.9884 24.0093

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 benchmark0.043993
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)

23.96/24.00	c MXC attempting /tmp/evaluation/298851-1171861510/instance-298851-1171861510.cnf
23.96/24.00	c 0 assignments made, starting to guess now
23.96/24.00	c ===================================[MXC]=====================================
23.96/24.00	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
23.96/24.00	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
23.96/24.00	c =============================================================================
23.96/24.00	c |         0 |    1533     4599 |    1000       0       0     nan |  0.000 % |
23.96/24.00	c |       102 |    1533     4599 |    1100     102    1684    16.5 |  0.000 % |
23.96/24.00	c |       252 |    1533     4599 |    1210     252    4171    16.6 |  0.000 % |
23.96/24.00	c |       478 |    1533     4599 |    1331     478    8055    16.9 |  0.000 % |
23.96/24.00	c |       817 |    1533     4599 |    1464     817   13804    16.9 |  0.000 % |
23.96/24.00	c |      1323 |    1533     4599 |    1610    1323   22998    17.4 |  0.000 % |
23.96/24.00	c |      2083 |    1533     4599 |    1771    1277   22607    17.7 |  0.000 % |
23.96/24.00	c |      3223 |    1533     4599 |    1948    1531   26640    17.4 |  0.000 % |
23.96/24.00	c |      4932 |    1533     4599 |    2143    1291   20924    16.2 |  0.000 % |
23.96/24.00	c |      7495 |    1533     4599 |    2357    1714   27020    15.8 |  0.000 % |
23.96/24.00	c |     11339 |    1533     4599 |    2593    2022   32852    16.2 |  0.000 % |
23.96/24.00	c |     17107 |    1533     4599 |    2853    1310   19499    14.9 |  0.000 % |
23.96/24.00	c |     25756 |    1533     4599 |    3138    2827   46709    16.5 |  0.000 % |
23.96/24.00	c |     38731 |    1533     4599 |    3452    1692   25124    14.8 |  0.000 % |
23.96/24.00	c |     58192 |    1533     4599 |    3797    2173   36343    16.7 |  0.000 % |
23.96/24.00	c |     87384 |    1533     4599 |    4177    2901   45904    15.8 |  0.000 % |
23.96/24.00	c |    131173 |    1533     4599 |    4594    2868   42366    14.8 |  0.000 % |
23.96/24.00	c |    196857 |    1533     4599 |    5054    4277   70712    16.5 |  0.000 % |
23.96/24.00	c |    295384 |    1533     4599 |    5559    4310   69152    16.0 |  0.000 % |
23.96/24.00	c 23.980s elapsed
23.96/24.00	c restarts: 18
23.96/24.00	c decisions: 479906
23.96/24.00	c propagations: 23450319
23.96/24.00	c conflicts: 411024
23.96/24.00	s SATISFIABLE
23.96/24.00	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 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node24/watcher-298851-1171861510 -o ROOT/results/node24/solver-298851-1171861510 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/298851-1171861510/mxc /tmp/evaluation/298851-1171861510/instance-298851-1171861510.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: 1.00 1.00 1.00 3/77 11381
/proc/meminfo: memFree=272080/2055920 swapFree=4144024/4192956
[pid=11381] ppid=11379 vsize=932 CPUtime=0
/proc/11381/stat : 11381 (mxc) R 11379 11381 6827 0 -1 4194304 116 0 0 0 0 0 0 0 18 0 1 0 206105269 954368 100 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519555 0 0 4096 0 0 0 0 17 1 0 0
/proc/11381/statm: 233 100 57 122 0 107 0

[startup+0.107533 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 11381
/proc/meminfo: memFree=272080/2055920 swapFree=4144024/4192956
[pid=11381] ppid=11379 vsize=1204 CPUtime=0.1
/proc/11381/stat : 11381 (mxc) R 11379 11381 6827 0 -1 4194304 181 0 0 0 10 0 0 0 18 0 1 0 206105269 1232896 163 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519890 0 0 4096 0 0 0 0 17 1 0 0
/proc/11381/statm: 301 163 67 122 0 175 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1204

[startup+0.515576 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 11381
/proc/meminfo: memFree=272080/2055920 swapFree=4144024/4192956
[pid=11381] ppid=11379 vsize=1336 CPUtime=0.51
/proc/11381/stat : 11381 (mxc) R 11379 11381 6827 0 -1 4194304 219 0 0 0 51 0 0 0 21 0 1 0 206105269 1368064 201 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134530651 0 0 4096 0 0 0 0 17 1 0 0
/proc/11381/statm: 334 201 67 122 0 208 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 1336

[startup+1.33566 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 11382
/proc/meminfo: memFree=271432/2055920 swapFree=4144024/4192956
[pid=11381] ppid=11379 vsize=1468 CPUtime=1.33
/proc/11381/stat : 11381 (mxc) R 11379 11381 6827 0 -1 4194304 251 0 0 0 133 0 0 0 25 0 1 0 206105269 1503232 233 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519311 0 0 4096 0 0 0 0 17 1 0 0
/proc/11381/statm: 367 233 67 122 0 241 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 1468

[startup+2.97184 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 11382
/proc/meminfo: memFree=271112/2055920 swapFree=4144024/4192956
[pid=11381] ppid=11379 vsize=1600 CPUtime=2.96
/proc/11381/stat : 11381 (mxc) R 11379 11381 6827 0 -1 4194304 291 0 0 0 296 0 0 0 25 0 1 0 206105269 1638400 273 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519232 0 0 4096 0 0 0 0 17 1 0 0
/proc/11381/statm: 400 273 67 122 0 274 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 1600

[startup+6.2522 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 11382
/proc/meminfo: memFree=270920/2055920 swapFree=4144024/4192956
[pid=11381] ppid=11379 vsize=1848 CPUtime=6.24
/proc/11381/stat : 11381 (mxc) R 11379 11381 6827 0 -1 4194304 332 0 0 0 624 0 0 0 25 0 1 0 206105269 1892352 314 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519311 0 0 4096 0 0 0 0 17 1 0 0
/proc/11381/statm: 462 314 67 122 0 336 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 1848

[startup+12.7069 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 11382
/proc/meminfo: memFree=270536/2055920 swapFree=4144024/4192956
[pid=11381] ppid=11379 vsize=2092 CPUtime=12.69
/proc/11381/stat : 11381 (mxc) R 11379 11381 6827 0 -1 4194304 393 0 0 0 1269 0 0 0 25 0 1 0 206105269 2142208 375 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519962 0 0 4096 0 0 0 0 17 1 0 0
/proc/11381/statm: 523 375 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+13.1149 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 11382
/proc/meminfo: memFree=270536/2055920 swapFree=4144024/4192956
[pid=11381] ppid=11379 vsize=2092 CPUtime=13.1
/proc/11381/stat : 11381 (mxc) R 11379 11381 6827 0 -1 4194304 406 0 0 0 1310 0 0 0 25 0 1 0 206105269 2142208 388 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519212 0 0 4096 0 0 0 0 17 1 0 0
/proc/11381/statm: 523 388 67 122 0 397 0
Current children cumulated CPU time (s) 13.1
Current children cumulated vsize (KiB) 2092

[startup+19.6677 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 11382
/proc/meminfo: memFree=270344/2055920 swapFree=4144024/4192956
[pid=11381] ppid=11379 vsize=2224 CPUtime=19.65
/proc/11381/stat : 11381 (mxc) R 11379 11381 6827 0 -1 4194304 436 0 0 0 1965 0 0 0 25 0 1 0 206105269 2277376 418 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519990 0 0 4096 0 0 0 0 17 1 0 0
/proc/11381/statm: 556 418 67 122 0 430 0
Current children cumulated CPU time (s) 19.65
Current children cumulated vsize (KiB) 2224

[startup+21.3078 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 11382
/proc/meminfo: memFree=270344/2055920 swapFree=4144024/4192956
[pid=11381] ppid=11379 vsize=2224 CPUtime=21.29
/proc/11381/stat : 11381 (mxc) R 11379 11381 6827 0 -1 4194304 440 0 0 0 2129 0 0 0 25 0 1 0 206105269 2277376 422 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519273 0 0 4096 0 0 0 0 17 1 0 0
/proc/11381/statm: 556 422 67 122 0 430 0
Current children cumulated CPU time (s) 21.29
Current children cumulated vsize (KiB) 2224

[startup+22.948 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 11382
/proc/meminfo: memFree=270344/2055920 swapFree=4144024/4192956
[pid=11381] ppid=11379 vsize=2224 CPUtime=22.93
/proc/11381/stat : 11381 (mxc) R 11379 11381 6827 0 -1 4194304 445 0 0 0 2293 0 0 0 25 0 1 0 206105269 2277376 427 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519987 0 0 4096 0 0 0 0 17 1 0 0
/proc/11381/statm: 556 427 67 122 0 430 0
Current children cumulated CPU time (s) 22.93
Current children cumulated vsize (KiB) 2224

[startup+23.7681 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 11382
/proc/meminfo: memFree=270344/2055920 swapFree=4144024/4192956
[pid=11381] ppid=11379 vsize=2224 CPUtime=23.75
/proc/11381/stat : 11381 (mxc) R 11379 11381 6827 0 -1 4194304 445 0 0 0 2375 0 0 0 25 0 1 0 206105269 2277376 427 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134529869 0 0 4096 0 0 0 0 17 1 0 0
/proc/11381/statm: 556 427 67 122 0 430 0
Current children cumulated CPU time (s) 23.75
Current children cumulated vsize (KiB) 2224

[startup+23.9721 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 11382
/proc/meminfo: memFree=270344/2055920 swapFree=4144024/4192956
[pid=11381] ppid=11379 vsize=2224 CPUtime=23.96
/proc/11381/stat : 11381 (mxc) R 11379 11381 6827 0 -1 4194304 445 0 0 0 2396 0 0 0 25 0 1 0 206105269 2277376 427 18446744073709551615 134512640 135013041 4294956640 18446744073709551615 134519890 0 0 4096 0 0 0 0 17 1 0 0
/proc/11381/statm: 556 427 67 122 0 430 0
Current children cumulated CPU time (s) 23.96
Current children cumulated vsize (KiB) 2224

Child status: 10
Real time (s): 24.0093
CPU time (s): 23.9884
CPU user time (s): 23.9844
CPU system time (s): 0.003999
CPU usage (%): 99.9126
Max. virtual memory (cumulated for all children) (KiB): 2224

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 23.9844
system time used= 0.003999
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= 63

runsolver used 0.019996 second user time and 0.057991 second system time

The end

Launcher Data (download as text)

Begin job on node24 on Mon Feb 19 05:05:10 UTC 2007

IDJOB= 298851
IDBENCH= 19996
IDSOLVER= 107
FILE ID= node24/298851-1171861510

PBS_JOBID= 3839656

Free space on /tmp= 66563 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/298851-1171861510/mxc /tmp/evaluation/298851-1171861510/instance-298851-1171861510.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node24/watcher-298851-1171861510 -o ROOT/results/node24/solver-298851-1171861510 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/298851-1171861510/mxc /tmp/evaluation/298851-1171861510/instance-298851-1171861510.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  cf84a3dca136fb4dbd89b4b968109201

RANDOM SEED= 956910978

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node24.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		: 3000.232
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		: 3000.232
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:        272488 kB
Buffers:         43864 kB
Cached:        1632836 kB
SwapCached:       4600 kB
Active:         763408 kB
Inactive:       923744 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        272488 kB
SwapTotal:     4192956 kB
SwapFree:      4144024 kB
Dirty:             612 kB
Writeback:           0 kB
Mapped:          15632 kB
Slab:            81836 kB
Committed_AS:   685596 kB
PageTables:       1732 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 node24 on Mon Feb 19 05:05:34 UTC 2007