Trace number 1519215

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
VARSAT-crafted 2009-03-22SAT 0.364943 0.366114

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/360/
unif-k3-r4.25-v360-c1530-S1826927554-087.cnf
MD5SUM0b7c656709bcc63999a07f86368ab57c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007998
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1530
Sum of the clauses size4590
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31530
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  360                                                  |
0.00/0.00	c |  Number of clauses:    1530                                                 |
0.00/0.00	c |  Parsing time:         0.00         s                                       |
0.00/0.00	c |  Timeout:              43200 s
0.00/0.00	c |  Random Seed:          1493821022.000000
0.00/0.00	c |  Heuristic:            EMBP-G, threshold 0.800                              |
0.00/0.00	c |  Branching Rule:       default (solution-guided)                            |
0.00/0.00	c |  Learned clauses in surveys?  Using NO learned clauses.                     |
0.00/0.00	c |                                                                             |
0.00/0.00	c ============================[ Search Statistics ]==============================
0.00/0.00	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.00	c ===============================================================================
0.00/0.00	c |         0 |     352     1516     4593 |      505        0    nan |  0.000 % |
0.00/0.00	c |       100 |     352     1516     4593 |      555      100     17 |  0.001 % |
0.00/0.01	c |       250 |     352     1516     4593 |      611      250     17 |  0.001 % |
0.00/0.02	c |       475 |     352     1516     4593 |      672      475     17 |  0.001 % |
0.00/0.03	c |       812 |     352     1516     4593 |      739      455     16 |  0.001 % |
0.00/0.05	c |      1318 |     352     1516     4593 |      813      564     15 |  0.001 % |
0.00/0.07	c |      2077 |     352     1516     4593 |      895      464     14 |  0.001 % |
0.10/0.11	c |      3216 |     352     1516     4593 |      984      672     16 |  0.001 % |
0.10/0.17	c |      4927 |     352     1516     4593 |     1083      850     15 |  0.001 % |
0.20/0.26	c |      7491 |     352     1516     4593 |     1191      613     13 |  0.001 % |
0.30/0.36	c ===============================================================================
0.30/0.36	c surveys--CPU time (sec)   : 0.0170         (4.67 % of total)
0.30/0.36	c surveys--attempted        : 10             (588 /sec)
0.30/0.36	c surveys--converged        : 10             (100.00 % successful)
0.30/0.36	c restarts              : 10
0.30/0.36	c conflicts             : 10206          (29417 /sec)
0.30/0.36	c decisions             : 12547          (1.93 % random) (36164 /sec)
0.30/0.36	c propagations          : 588681         (1696756 /sec)
0.30/0.36	c conflict literals     : 185204         (19.44 % deleted)
0.30/0.36	c Memory used           : 2.49 MB
0.30/0.36	c Total CPU time (sec)      : 0.3639      
0.30/0.36	c 
0.30/0.36	s SATISFIABLE
0.30/0.36	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 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1519215-1238309073/watcher-1519215-1238309073 -o /tmp/evaluation-result-1519215-1238309073/solver-1519215-1238309073 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/varsat-crafted_static -seed=1493821022 HOME/instance-1519215-1238309073.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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 0.96 0.98 3/64 7761
/proc/meminfo: memFree=788464/2055920 swapFree=4181692/4192956
[pid=7761] ppid=7759 vsize=2412 CPUtime=0
/proc/7761/stat : 7761 (varsat-crafted_) R 7759 7761 7354 0 -1 4194304 219 0 0 0 0 0 0 0 18 0 1 0 275108630 2469888 204 1992294400 4194304 5102648 548682068800 18446744073709551615 4266506 0 0 4096 3 0 0 0 17 1 0 0
/proc/7761/statm: 603 204 99 221 0 379 0

[startup+0.0869289 s]
/proc/loadavg: 0.98 0.96 0.98 3/64 7761
/proc/meminfo: memFree=788464/2055920 swapFree=4181692/4192956
[pid=7761] ppid=7759 vsize=2412 CPUtime=0.08
/proc/7761/stat : 7761 (varsat-crafted_) R 7759 7761 7354 0 -1 4194304 241 0 0 0 8 0 0 0 18 0 1 0 275108630 2469888 226 1992294400 4194304 5102648 548682068800 18446744073709551615 4249850 0 0 4096 3 0 0 0 17 1 0 0
/proc/7761/statm: 603 226 110 221 0 379 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 2412

[startup+0.10293 s]
/proc/loadavg: 0.98 0.96 0.98 3/64 7761
/proc/meminfo: memFree=788464/2055920 swapFree=4181692/4192956
[pid=7761] ppid=7759 vsize=2544 CPUtime=0.1
/proc/7761/stat : 7761 (varsat-crafted_) R 7759 7761 7354 0 -1 4194304 244 0 0 0 10 0 0 0 18 0 1 0 275108630 2605056 229 1992294400 4194304 5102648 548682068800 18446744073709551615 4249883 0 0 4096 3 0 0 0 17 1 0 0
/proc/7761/statm: 636 229 110 221 0 412 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2544

[startup+0.302952 s]
/proc/loadavg: 0.98 0.96 0.98 3/64 7761
/proc/meminfo: memFree=788464/2055920 swapFree=4181692/4192956
[pid=7761] ppid=7759 vsize=2544 CPUtime=0.3
/proc/7761/stat : 7761 (varsat-crafted_) R 7759 7761 7354 0 -1 4194304 266 0 0 0 30 0 0 0 19 0 1 0 275108630 2605056 251 1992294400 4194304 5102648 548682068800 18446744073709551615 4250197 0 0 4096 3 0 0 0 17 1 0 0
/proc/7761/statm: 636 251 110 221 0 412 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 2544

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

Child status: 10
Real time (s): 0.366114
CPU time (s): 0.364943
CPU user time (s): 0.363944
CPU system time (s): 0.000999
CPU usage (%): 99.6802
Max. virtual memory (cumulated for all children) (KiB): 2544

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.363944
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 279
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 0.004999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node42 at 2009-03-29 08:44:33
IDJOB=1519215
IDBENCH=70744
IDSOLVER=537
FILE ID=node42/1519215-1238309073
PBS_JOBID= 9061049
Free space on /tmp= 66248 MiB

SOLVER NAME= VARSAT-crafted 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/360/unif-k3-r4.25-v360-c1530-S1826927554-087.cnf
COMMAND LINE= HOME/varsat-crafted_static -seed=RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1519215-1238309073/watcher-1519215-1238309073 -o /tmp/evaluation-result-1519215-1238309073/solver-1519215-1238309073 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/varsat-crafted_static -seed=1493821022 HOME/instance-1519215-1238309073.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 0b7c656709bcc63999a07f86368ab57c
RANDOM SEED=1493821022

node42.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.211
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		: 3000.211
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:        788880 kB
Buffers:        103496 kB
Cached:        1060240 kB
SwapCached:       5184 kB
Active:         202484 kB
Inactive:       969816 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        788880 kB
SwapTotal:     4192956 kB
SwapFree:      4181692 kB
Dirty:            1044 kB
Writeback:           0 kB
Mapped:          14288 kB
Slab:            80748 kB
Committed_AS:   828676 kB
PageTables:       1388 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= 66248 MiB
End job on node42 at 2009-03-29 08:44:33