Trace number 1520638

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
MiniSat 2.1 (Sat-race'08 Edition)SAT 12.2491 12.2525

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/360/
unif-k3-r4.25-v360-c1530-S2032263657-035.cnf
MD5SUM53f64d3919c2bd6a89e2520e3c5780bd
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 WARNING: for repeatability, setting FPU to use double precision
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 |  Parse time:                   0.00 s                                       |
0.00/0.00	c |  Simplification time:          0.00 s                                       |
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 |       100 |     343     1500     4600 |      550      100     18 |  0.001 % |
0.00/0.01	c |       250 |     343     1500     4600 |      605      250     18 |  0.001 % |
0.00/0.01	c |       475 |     343     1500     4600 |      665      475     18 |  0.001 % |
0.00/0.02	c |       812 |     343     1500     4600 |      732      455     16 |  0.001 % |
0.00/0.03	c |      1318 |     343     1500     4600 |      805      570     16 |  0.001 % |
0.03/0.05	c |      2077 |     343     1500     4600 |      885      490     14 |  0.001 % |
0.03/0.08	c |      3216 |     343     1500     4600 |      974      699     15 |  0.001 % |
0.09/0.12	c |      4924 |     343     1500     4600 |     1071      906     15 |  0.001 % |
0.09/0.19	c |      7486 |     343     1500     4600 |     1178      714     14 |  0.001 % |
0.19/0.29	c |     11330 |     343     1500     4600 |     1296      909     15 |  0.001 % |
0.39/0.45	c |     17096 |     343     1500     4600 |     1426      732     13 |  0.001 % |
0.59/0.70	c |     25745 |     343     1500     4600 |     1569     1403     16 |  0.001 % |
1.00/1.07	c |     38719 |     343     1500     4600 |     1726     1534     15 |  0.001 % |
1.59/1.65	c |     58180 |     343     1500     4600 |     1898     1704     15 |  0.001 % |
2.49/2.54	c |     87372 |     343     1500     4600 |     2088     1000     15 |  0.001 % |
3.89/3.92	c |    131161 |     343     1500     4600 |     2297     1293     16 |  0.001 % |
5.99/6.05	c |    196845 |     343     1500     4600 |     2527     1513     15 |  0.001 % |
9.29/9.34	c |    295371 |     343     1500     4600 |     2779     1337     16 |  0.001 % |
12.19/12.25	c ===============================================================================
12.19/12.25	c restarts              : 907
12.19/12.25	c conflicts             : 380564         (31081 /sec)
12.19/12.25	c decisions             : 475993         (38875 /sec)
12.19/12.25	c propagations          : 21042868       (1718608 /sec)
12.19/12.25	c conflict literals     : 6798606        (18.94 % deleted)
12.19/12.25	c Memory used           : 17.47 MB
12.19/12.25	c CPU time              : 12.2441 s
12.19/12.25	c 
12.19/12.25	s SATISFIABLE
12.19/12.25	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-1520638-1238309303/watcher-1520638-1238309303 -o /tmp/evaluation-result-1520638-1238309303/solver-1520638-1238309303 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1520638-1238309303.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: 1.00 1.00 1.00 3/64 15002
/proc/meminfo: memFree=1423912/2055920 swapFree=4177912/4192956
[pid=15002] ppid=15000 vsize=12656 CPUtime=0
/proc/15002/stat : 15002 (minisat) R 15000 15002 14500 0 -1 4194304 178 0 0 0 0 0 0 0 18 0 1 0 1103591312 12959744 162 1992294400 4194304 5092341 548682068848 18446744073709551615 4262248 0 0 4096 3 0 0 0 17 1 0 0
/proc/15002/statm: 3164 163 89 219 0 2942 0

[startup+0.0403379 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 15002
/proc/meminfo: memFree=1423912/2055920 swapFree=4177912/4192956
[pid=15002] ppid=15000 vsize=12688 CPUtime=0.03
/proc/15002/stat : 15002 (minisat) R 15000 15002 14500 0 -1 4194304 249 0 0 0 3 0 0 0 18 0 1 0 1103591312 12992512 204 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/15002/statm: 3172 204 99 219 0 2950 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 12688

[startup+0.101349 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 15002
/proc/meminfo: memFree=1423912/2055920 swapFree=4177912/4192956
[pid=15002] ppid=15000 vsize=17884 CPUtime=0.09
/proc/15002/stat : 15002 (minisat) R 15000 15002 14500 0 -1 4194304 279 0 0 0 9 0 0 0 18 0 1 0 1103591312 18313216 234 1992294400 4194304 5092341 548682068848 18446744073709551615 4250448 0 0 4096 3 0 0 0 17 1 0 0
/proc/15002/statm: 4471 234 100 219 0 4249 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 17884

[startup+0.301392 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 15002
/proc/meminfo: memFree=1423912/2055920 swapFree=4177912/4192956
[pid=15002] ppid=15000 vsize=17884 CPUtime=0.29
/proc/15002/stat : 15002 (minisat) R 15000 15002 14500 0 -1 4194304 326 0 0 0 29 0 0 0 19 0 1 0 1103591312 18313216 252 1992294400 4194304 5092341 548682068848 18446744073709551615 4249664 0 0 4096 3 0 0 0 17 1 0 0
/proc/15002/statm: 4471 252 100 219 0 4249 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 17884

[startup+0.701478 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 15002
/proc/meminfo: memFree=1423912/2055920 swapFree=4177912/4192956
[pid=15002] ppid=15000 vsize=17884 CPUtime=0.69
/proc/15002/stat : 15002 (minisat) R 15000 15002 14500 0 -1 4194304 395 0 0 0 69 0 0 0 22 0 1 0 1103591312 18313216 292 1992294400 4194304 5092341 548682068848 18446744073709551615 4240957 0 0 4096 3 0 0 0 17 1 0 0
/proc/15002/statm: 4471 292 100 219 0 4249 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 17884

[startup+1.50165 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 15003
/proc/meminfo: memFree=1423008/2055920 swapFree=4177912/4192956
[pid=15002] ppid=15000 vsize=17884 CPUtime=1.49
/proc/15002/stat : 15002 (minisat) R 15000 15002 14500 0 -1 4194304 448 0 0 0 149 0 0 0 25 0 1 0 1103591312 18313216 345 1992294400 4194304 5092341 548682068848 18446744073709551615 4241447 0 0 4096 3 0 0 0 17 1 0 0
/proc/15002/statm: 4471 345 100 219 0 4249 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 17884

[startup+3.10199 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 15003
/proc/meminfo: memFree=1422688/2055920 swapFree=4177912/4192956
[pid=15002] ppid=15000 vsize=17884 CPUtime=3.09
/proc/15002/stat : 15002 (minisat) R 15000 15002 14500 0 -1 4194304 518 0 0 0 309 0 0 0 25 0 1 0 1103591312 18313216 415 1992294400 4194304 5092341 548682068848 18446744073709551615 4240571 0 0 4096 3 0 0 0 17 1 0 0
/proc/15002/statm: 4471 415 100 219 0 4249 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 17884

[startup+6.30168 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 15003
/proc/meminfo: memFree=1422176/2055920 swapFree=4177912/4192956
[pid=15002] ppid=15000 vsize=17884 CPUtime=6.29
/proc/15002/stat : 15002 (minisat) R 15000 15002 14500 0 -1 4194304 676 0 0 0 629 0 0 0 25 0 1 0 1103591312 18313216 502 1992294400 4194304 5092341 548682068848 18446744073709551615 4247973 0 0 4096 3 0 0 0 17 1 0 0
/proc/15002/statm: 4471 502 100 219 0 4249 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 17884

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

[startup+9.50237 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 15003
/proc/meminfo: memFree=1421920/2055920 swapFree=4177912/4192956
[pid=15002] ppid=15000 vsize=17884 CPUtime=9.49
/proc/15002/stat : 15002 (minisat) R 15000 15002 14500 0 -1 4194304 723 0 0 0 949 0 0 0 25 0 1 0 1103591312 18313216 549 1992294400 4194304 5092341 548682068848 18446744073709551615 4250803 0 0 4096 3 0 0 0 17 1 0 0
/proc/15002/statm: 4471 549 100 219 0 4249 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 17884

[startup+11.1017 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 15003
/proc/meminfo: memFree=1421728/2055920 swapFree=4177912/4192956
[pid=15002] ppid=15000 vsize=17884 CPUtime=11.09
/proc/15002/stat : 15002 (minisat) R 15000 15002 14500 0 -1 4194304 750 0 0 0 1109 0 0 0 25 0 1 0 1103591312 18313216 576 1992294400 4194304 5092341 548682068848 18446744073709551615 4241431 0 0 4096 3 0 0 0 17 1 0 0
/proc/15002/statm: 4471 576 100 219 0 4249 0
Current children cumulated CPU time (s) 11.09
Current children cumulated vsize (KiB) 17884

[startup+11.9019 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 15003
/proc/meminfo: memFree=1421728/2055920 swapFree=4177912/4192956
[pid=15002] ppid=15000 vsize=17884 CPUtime=11.89
/proc/15002/stat : 15002 (minisat) R 15000 15002 14500 0 -1 4194304 765 0 0 0 1189 0 0 0 25 0 1 0 1103591312 18313216 591 1992294400 4194304 5092341 548682068848 18446744073709551615 4240648 0 0 4096 3 0 0 0 17 1 0 0
/proc/15002/statm: 4471 591 100 219 0 4249 0
Current children cumulated CPU time (s) 11.89
Current children cumulated vsize (KiB) 17884

[startup+12.1059 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 15003
/proc/meminfo: memFree=1421600/2055920 swapFree=4177912/4192956
[pid=15002] ppid=15000 vsize=17884 CPUtime=12.09
/proc/15002/stat : 15002 (minisat) R 15000 15002 14500 0 -1 4194304 771 0 0 0 1209 0 0 0 25 0 1 0 1103591312 18313216 597 1992294400 4194304 5092341 548682068848 18446744073709551615 4240611 0 0 4096 3 0 0 0 17 1 0 0
/proc/15002/statm: 4471 597 100 219 0 4249 0
Current children cumulated CPU time (s) 12.09
Current children cumulated vsize (KiB) 17884

[startup+12.202 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 15003
/proc/meminfo: memFree=1421600/2055920 swapFree=4177912/4192956
[pid=15002] ppid=15000 vsize=17884 CPUtime=12.19
/proc/15002/stat : 15002 (minisat) R 15000 15002 14500 0 -1 4194304 773 0 0 0 1219 0 0 0 25 0 1 0 1103591312 18313216 599 1992294400 4194304 5092341 548682068848 18446744073709551615 4244154 0 0 4096 3 0 0 0 17 1 0 0
/proc/15002/statm: 4471 599 100 219 0 4249 0
Current children cumulated CPU time (s) 12.19
Current children cumulated vsize (KiB) 17884

Child status: 10
Real time (s): 12.2525
CPU time (s): 12.2491
CPU user time (s): 12.2441
CPU system time (s): 0.004999
CPU usage (%): 99.9726
Max. virtual memory (cumulated for all children) (KiB): 23076

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.2441
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 783
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= 13

runsolver used 0.017997 second user time and 0.029995 second system time

The end

Launcher Data 

Begin job on node71 at 2009-03-29 08:48:23
IDJOB=1520638
IDBENCH=70748
IDSOLVER=546
FILE ID=node71/1520638-1238309303
PBS_JOBID= 9061030
Free space on /tmp= 66352 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/360/unif-k3-r4.25-v360-c1530-S2032263657-035.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1520638-1238309303/watcher-1520638-1238309303 -o /tmp/evaluation-result-1520638-1238309303/solver-1520638-1238309303 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1520638-1238309303.cnf

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

MD5SUM BENCH= 53f64d3919c2bd6a89e2520e3c5780bd
RANDOM SEED=238882754

node71.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		: 3000.270
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		: 3000.270
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:       1424328 kB
Buffers:         78360 kB
Cached:         463888 kB
SwapCached:       9096 kB
Active:         182616 kB
Inactive:       370352 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1424328 kB
SwapTotal:     4192956 kB
SwapFree:      4177912 kB
Dirty:            1032 kB
Writeback:           0 kB
Mapped:          16456 kB
Slab:            64524 kB
Committed_AS:  2420536 kB
PageTables:       1444 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= 66352 MiB
End job on node71 at 2009-03-29 08:48:36