Trace number 1518288

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
clasp 1.2.0-SAT09-32SAT 31.5972 31.6065

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/420/
unif-k3-r4.25-v420-c1785-S180439591-093.cnf
MD5SUM69b9fd52ab448c99d778e33811fd6518
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.015997
Satisfiable
(Un)Satisfiability was proved
Number of variables420
Number of clauses1785
Sum of the clauses size5355
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31785
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

31.58/31.60	c clasp version 1.2.0-SAT09 
31.58/31.60	c Reading from ...297752/instance-1518288-1238297752.cnf
31.58/31.60	c Reading      : Done(0.000s)
31.58/31.60	c Preprocessing: |-\Done(0.000s)
31.58/31.60	c Solving...
31.58/31.60	c Model: 1
31.58/31.60	v -1 2 3 -4 -5 6 -7 -8 -9 -10
31.58/31.60	v 11 -12 -13 14 -15 16 -17 -18 -19 20
31.58/31.60	v 21 -22 -23 -24 -25 -26 27 28 29 30
31.58/31.60	v -31 -32 33 34 35 -36 37 -38 -39 40
31.58/31.60	v 41 -42 -43 44 45 46 -47 48 -49 50
31.58/31.60	v 51 -52 -53 54 55 56 -57 -58 59 -60
31.58/31.60	v 61 62 -63 64 -65 -66 67 -68 69 70
31.58/31.60	v 71 72 -73 -74 75 76 -77 78 79 80
31.58/31.60	v 81 82 -83 84 -85 86 -87 -88 89 90
31.58/31.60	v 91 92 -93 -94 95 96 97 -98 99 100
31.58/31.60	v 101 102 103 104 105 106 107 108 -109 -110
31.58/31.60	v -111 -112 113 114 -115 -116 117 -118 -119 -120
31.58/31.60	v -121 -122 -123 -124 125 -126 127 -128 -129 -130
31.58/31.60	v -131 132 133 -134 -135 136 -137 -138 139 -140
31.58/31.60	v -141 -142 -143 -144 145 -146 147 148 149 150
31.58/31.60	v -151 152 153 154 -155 -156 -157 158 159 160
31.58/31.60	v -161 162 163 164 165 166 -167 -168 169 170
31.58/31.60	v -171 -172 -173 174 175 176 -177 178 179 -180
31.58/31.60	v 181 182 183 184 -185 -186 187 188 189 -190
31.58/31.60	v -191 192 -193 -194 195 196 197 198 199 200
31.58/31.60	v 201 202 -203 204 205 206 207 -208 209 -210
31.58/31.60	v 211 212 213 214 -215 -216 217 218 -219 220
31.58/31.60	v 221 -222 223 224 -225 226 227 228 -229 230
31.58/31.60	v -231 -232 233 -234 235 -236 -237 238 239 -240
31.58/31.60	v 241 -242 -243 -244 245 246 -247 248 -249 -250
31.58/31.60	v -251 252 253 -254 255 -256 257 258 -259 -260
31.58/31.60	v -261 262 263 -264 -265 -266 -267 268 -269 270
31.58/31.60	v 271 272 -273 -274 275 -276 -277 278 279 -280
31.58/31.60	v 281 -282 -283 284 285 -286 287 288 289 -290
31.58/31.60	v 291 292 293 -294 295 296 -297 -298 299 300
31.58/31.60	v -301 -302 303 -304 -305 -306 307 308 -309 -310
31.58/31.60	v 311 -312 313 314 315 -316 -317 318 319 -320
31.58/31.60	v 321 322 -323 -324 325 -326 -327 -328 -329 -330
31.58/31.60	v 331 332 333 -334 -335 336 337 -338 339 340
31.58/31.60	v 341 342 -343 -344 345 346 -347 -348 349 350
31.58/31.60	v -351 -352 353 354 -355 -356 -357 -358 359 360
31.58/31.60	v -361 -362 363 364 365 -366 367 368 369 370
31.58/31.60	v 371 372 373 374 375 376 -377 378 379 380
31.58/31.60	v -381 -382 -383 -384 -385 386 387 388 389 390
31.58/31.60	v -391 392 393 -394 395 -396 397 398 399 -400
31.58/31.60	v -401 402 -403 404 405 -406 -407 408 -409 -410
31.58/31.60	v -411 -412 -413 414 -415 -416 -417 418 419 -420 0 
31.58/31.60	
31.58/31.60	c Models    : 1+    
31.58/31.60	c Time         : 31.590s (Solve: 31.590s)
31.58/31.60	s SATISFIABLE

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-1518288-1238297752/watcher-1518288-1238297752 -o /tmp/evaluation-result-1518288-1238297752/solver-1518288-1238297752 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/clasp --file=HOME/instance-1518288-1238297752.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512 

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: 0.99 0.98 0.99 3/65 18944
/proc/meminfo: memFree=832816/2055920 swapFree=4176856/4192956
[pid=18944] ppid=18942 vsize=1828 CPUtime=0
/proc/18944/stat : 18944 (clasp) R 18942 18944 15443 0 -1 4194304 247 0 0 0 0 0 0 0 20 0 1 0 989148914 1871872 228 1992294400 134512640 136057169 4294956176 18446744073709551615 135437996 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18944/statm: 457 228 169 377 0 77 0

[startup+0.0648249 s]
/proc/loadavg: 0.99 0.98 0.99 3/65 18944
/proc/meminfo: memFree=832816/2055920 swapFree=4176856/4192956
[pid=18944] ppid=18942 vsize=1960 CPUtime=0.06
/proc/18944/stat : 18944 (clasp) R 18942 18944 15443 0 -1 4194304 280 0 0 0 6 0 0 0 20 0 1 0 989148914 2007040 261 1992294400 134512640 136057169 4294956176 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18944/statm: 490 261 181 377 0 110 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1960

[startup+0.101827 s]
/proc/loadavg: 0.99 0.98 0.99 3/65 18944
/proc/meminfo: memFree=832816/2055920 swapFree=4176856/4192956
[pid=18944] ppid=18942 vsize=1960 CPUtime=0.09
/proc/18944/stat : 18944 (clasp) R 18942 18944 15443 0 -1 4194304 288 0 0 0 9 0 0 0 20 0 1 0 989148914 2007040 269 1992294400 134512640 136057169 4294956176 18446744073709551615 134823741 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18944/statm: 490 269 181 377 0 110 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1960

[startup+0.301845 s]
/proc/loadavg: 0.99 0.98 0.99 3/65 18944
/proc/meminfo: memFree=832816/2055920 swapFree=4176856/4192956
[pid=18944] ppid=18942 vsize=2092 CPUtime=0.29
/proc/18944/stat : 18944 (clasp) R 18942 18944 15443 0 -1 4194304 318 0 0 0 29 0 0 0 22 0 1 0 989148914 2142208 299 1992294400 134512640 136057169 4294956176 18446744073709551615 134825006 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18944/statm: 523 299 181 377 0 143 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2092

[startup+0.701883 s]
/proc/loadavg: 0.99 0.98 0.99 3/65 18944
/proc/meminfo: memFree=832816/2055920 swapFree=4176856/4192956
[pid=18944] ppid=18942 vsize=2224 CPUtime=0.69
/proc/18944/stat : 18944 (clasp) R 18942 18944 15443 0 -1 4194304 349 0 0 0 69 0 0 0 25 0 1 0 989148914 2277376 330 1992294400 134512640 136057169 4294956176 18446744073709551615 134823938 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18944/statm: 556 330 181 377 0 176 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2224

[startup+1.50196 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18945
/proc/meminfo: memFree=832168/2055920 swapFree=4176856/4192956
[pid=18944] ppid=18942 vsize=2356 CPUtime=1.49
/proc/18944/stat : 18944 (clasp) R 18942 18944 15443 0 -1 4194304 390 0 0 0 149 0 0 0 25 0 1 0 989148914 2412544 371 1992294400 134512640 136057169 4294956176 18446744073709551615 134824081 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18944/statm: 589 371 181 377 0 209 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2356

[startup+3.10111 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18945
/proc/meminfo: memFree=831784/2055920 swapFree=4176856/4192956
[pid=18944] ppid=18942 vsize=2620 CPUtime=3.09
/proc/18944/stat : 18944 (clasp) R 18942 18944 15443 0 -1 4194304 450 0 0 0 309 0 0 0 25 0 1 0 989148914 2682880 431 1992294400 134512640 136057169 4294956176 18446744073709551615 134828269 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18944/statm: 655 431 181 377 0 275 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2620

[startup+6.30141 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18945
/proc/meminfo: memFree=831336/2055920 swapFree=4176856/4192956
[pid=18944] ppid=18942 vsize=2884 CPUtime=6.29
/proc/18944/stat : 18944 (clasp) R 18942 18944 15443 0 -1 4194304 520 0 0 0 629 0 0 0 25 0 1 0 989148914 2953216 501 1992294400 134512640 136057169 4294956176 18446744073709551615 134618141 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18944/statm: 721 501 181 377 0 341 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2884

[startup+12.702 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18945
/proc/meminfo: memFree=830824/2055920 swapFree=4176856/4192956
[pid=18944] ppid=18942 vsize=3280 CPUtime=12.69
/proc/18944/stat : 18944 (clasp) R 18942 18944 15443 0 -1 4194304 632 0 0 0 1269 0 0 0 25 0 1 0 989148914 3358720 613 1992294400 134512640 136057169 4294956176 18446744073709551615 134611061 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18944/statm: 820 613 181 377 0 440 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3280

[startup+25.5012 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18945
/proc/meminfo: memFree=830248/2055920 swapFree=4176856/4192956
[pid=18944] ppid=18942 vsize=3948 CPUtime=25.48
/proc/18944/stat : 18944 (clasp) R 18942 18944 15443 0 -1 4194304 774 0 0 0 2548 0 0 0 25 0 1 0 989148914 4042752 755 1992294400 134512640 136057169 4294956176 18446744073709551615 134618452 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18944/statm: 987 755 181 377 0 607 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 3948

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

[startup+28.7015 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18945
/proc/meminfo: memFree=830120/2055920 swapFree=4176856/4192956
[pid=18944] ppid=18942 vsize=3948 CPUtime=28.68
/proc/18944/stat : 18944 (clasp) R 18942 18944 15443 0 -1 4194304 797 0 0 0 2868 0 0 0 25 0 1 0 989148914 4042752 778 1992294400 134512640 136057169 4294956176 18446744073709551615 134823876 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18944/statm: 987 778 181 377 0 607 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 3948

[startup+30.3017 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18945
/proc/meminfo: memFree=830056/2055920 swapFree=4176856/4192956
[pid=18944] ppid=18942 vsize=4080 CPUtime=30.28
/proc/18944/stat : 18944 (clasp) R 18942 18944 15443 0 -1 4194304 810 0 0 0 3028 0 0 0 25 0 1 0 989148914 4177920 791 1992294400 134512640 136057169 4294956176 18446744073709551615 134823884 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18944/statm: 1020 791 181 377 0 640 0
Current children cumulated CPU time (s) 30.28
Current children cumulated vsize (KiB) 4080

[startup+31.1017 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18945
/proc/meminfo: memFree=830056/2055920 swapFree=4176856/4192956
[pid=18944] ppid=18942 vsize=4080 CPUtime=31.08
/proc/18944/stat : 18944 (clasp) R 18942 18944 15443 0 -1 4194304 814 0 0 0 3108 0 0 0 25 0 1 0 989148914 4177920 795 1992294400 134512640 136057169 4294956176 18446744073709551615 134828403 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18944/statm: 1020 795 181 377 0 640 0
Current children cumulated CPU time (s) 31.08
Current children cumulated vsize (KiB) 4080

[startup+31.5018 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18945
/proc/meminfo: memFree=830056/2055920 swapFree=4176856/4192956
[pid=18944] ppid=18942 vsize=4080 CPUtime=31.48
/proc/18944/stat : 18944 (clasp) R 18942 18944 15443 0 -1 4194304 817 0 0 0 3148 0 0 0 25 0 1 0 989148914 4177920 798 1992294400 134512640 136057169 4294956176 18446744073709551615 134618347 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18944/statm: 1020 798 181 377 0 640 0
Current children cumulated CPU time (s) 31.48
Current children cumulated vsize (KiB) 4080

[startup+31.6018 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18945
/proc/meminfo: memFree=830056/2055920 swapFree=4176856/4192956
[pid=18944] ppid=18942 vsize=4080 CPUtime=31.58
/proc/18944/stat : 18944 (clasp) R 18942 18944 15443 0 -1 4194304 819 0 0 0 3158 0 0 0 25 0 1 0 989148914 4177920 800 1992294400 134512640 136057169 4294956176 18446744073709551615 134828590 0 0 4096 16386 0 0 0 17 1 0 0
/proc/18944/statm: 1020 800 181 377 0 640 0
Current children cumulated CPU time (s) 31.58
Current children cumulated vsize (KiB) 4080

Child status: 10
Real time (s): 31.6065
CPU time (s): 31.5972
CPU user time (s): 31.5922
CPU system time (s): 0.004999
CPU usage (%): 99.9707
Max. virtual memory (cumulated for all children) (KiB): 4080

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 31.5922
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= 825
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= 81

runsolver used 0.036994 second user time and 0.084987 second system time

The end

Launcher Data 

Begin job on node8 at 2009-03-29 05:35:52
IDJOB=1518288
IDBENCH=70667
IDSOLVER=508
FILE ID=node8/1518288-1238297752
PBS_JOBID= 9060954
Free space on /tmp= 64056 MiB

SOLVER NAME= clasp 1.2.0-SAT09-32
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/420/unif-k3-r4.25-v420-c1785-S180439591-093.cnf
COMMAND LINE= HOME/clasp --file=BENCHNAME --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1518288-1238297752/watcher-1518288-1238297752 -o /tmp/evaluation-result-1518288-1238297752/solver-1518288-1238297752 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/clasp --file=HOME/instance-1518288-1238297752.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512

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

MD5SUM BENCH= 69b9fd52ab448c99d778e33811fd6518
RANDOM SEED=1373851604

node8.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		: 3000.232
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:        833296 kB
Buffers:         95080 kB
Cached:        1023904 kB
SwapCached:       9204 kB
Active:         153224 kB
Inactive:       976468 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        833296 kB
SwapTotal:     4192956 kB
SwapFree:      4176856 kB
Dirty:            1872 kB
Writeback:           0 kB
Mapped:          16392 kB
Slab:            78720 kB
Committed_AS:  2568024 kB
PageTables:       1376 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 64056 MiB
End job on node8 at 2009-03-29 05:36:24