Trace number 1518600

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 45.5411 45.5542

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/400/
unif-k3-r4.25-v400-c1700-S1326039470-063.cnf
MD5SUM2e40295bba29f3b31b5d5a615b1b160f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.010997
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1700
Sum of the clauses size5100
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31700
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

45.48/45.55	c clasp version 1.2.0-SAT09 
45.48/45.55	c Reading from ...301773/instance-1518600-1238301773.cnf
45.48/45.55	c Reading      : Done(0.000s)
45.48/45.55	c Preprocessing: |-\Done(0.000s)
45.48/45.55	c Solving...
45.48/45.55	c Model: 1
45.48/45.55	v -1 2 -3 -4 -5 -6 7 -8 -9 -10
45.48/45.55	v 11 -12 -13 14 -15 16 17 -18 19 20
45.48/45.55	v -21 22 -23 -24 25 -26 27 28 -29 -30
45.48/45.55	v 31 32 33 34 35 36 -37 38 -39 -40
45.48/45.55	v 41 -42 43 -44 -45 -46 -47 48 49 -50
45.48/45.55	v -51 52 53 -54 -55 56 -57 58 -59 60
45.48/45.55	v 61 62 63 -64 65 66 67 68 69 -70
45.48/45.55	v 71 -72 73 74 -75 76 -77 78 -79 80
45.48/45.55	v 81 82 83 -84 -85 86 -87 -88 -89 -90
45.48/45.55	v 91 92 93 -94 -95 -96 97 -98 -99 100
45.48/45.55	v 101 102 -103 -104 -105 -106 107 108 109 110
45.48/45.55	v -111 112 -113 114 -115 116 -117 -118 -119 120
45.48/45.55	v -121 -122 -123 124 125 126 127 -128 -129 -130
45.48/45.55	v -131 132 -133 134 -135 -136 -137 138 -139 140
45.48/45.55	v 141 142 143 144 -145 146 147 148 -149 150
45.48/45.55	v -151 -152 153 -154 -155 -156 -157 158 159 -160
45.48/45.55	v -161 162 163 164 165 166 167 -168 -169 170
45.48/45.55	v -171 172 173 174 -175 -176 -177 -178 -179 180
45.48/45.55	v -181 -182 183 -184 185 186 -187 -188 189 -190
45.48/45.55	v 191 192 193 -194 195 196 197 198 -199 -200
45.48/45.55	v 201 -202 203 204 205 206 -207 -208 -209 210
45.48/45.55	v -211 -212 -213 -214 215 -216 217 218 219 220
45.48/45.55	v 221 222 -223 -224 225 -226 -227 -228 -229 -230
45.48/45.55	v -231 -232 233 234 -235 236 237 238 -239 -240
45.48/45.55	v 241 242 -243 -244 -245 246 247 248 249 250
45.48/45.55	v -251 -252 -253 254 -255 -256 -257 258 259 -260
45.48/45.55	v -261 -262 -263 264 -265 -266 267 268 269 270
45.48/45.55	v 271 -272 273 -274 -275 276 -277 -278 -279 -280
45.48/45.55	v 281 282 -283 -284 285 286 287 -288 289 -290
45.48/45.55	v -291 -292 -293 -294 -295 -296 297 -298 -299 -300
45.48/45.55	v -301 302 303 304 -305 -306 307 -308 -309 -310
45.48/45.55	v -311 312 -313 314 -315 -316 317 318 319 -320
45.48/45.55	v -321 -322 323 -324 325 -326 327 328 329 330
45.48/45.55	v -331 -332 333 334 335 -336 337 -338 -339 340
45.48/45.55	v 341 -342 -343 -344 345 346 347 -348 -349 -350
45.48/45.55	v -351 -352 353 -354 -355 356 357 -358 -359 -360
45.48/45.55	v -361 362 363 -364 -365 366 367 368 369 370
45.48/45.55	v 371 372 373 374 -375 376 -377 378 379 380
45.48/45.55	v 381 -382 -383 -384 -385 386 -387 388 -389 -390
45.48/45.55	v 391 -392 393 394 -395 396 -397 -398 -399 -400 0 
45.48/45.55	
45.48/45.55	c Models    : 1+    
45.48/45.55	c Time         : 45.540s (Solve: 45.540s)
45.48/45.55	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-1518600-1238301773/watcher-1518600-1238301773 -o /tmp/evaluation-result-1518600-1238301773/solver-1518600-1238301773 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/clasp --file=HOME/instance-1518600-1238301773.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: 1.00 1.00 1.00 3/65 19150
/proc/meminfo: memFree=832352/2055920 swapFree=4176856/4192956
[pid=19150] ppid=19148 vsize=1828 CPUtime=0
/proc/19150/stat : 19150 (clasp) R 19148 19150 19055 0 -1 4194304 247 0 0 0 0 0 0 0 20 0 1 0 989551034 1871872 229 1992294400 134512640 136057169 4294956176 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/19150/statm: 457 230 170 377 0 77 0

[startup+0.0654831 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 19150
/proc/meminfo: memFree=832352/2055920 swapFree=4176856/4192956
[pid=19150] ppid=19148 vsize=1960 CPUtime=0.06
/proc/19150/stat : 19150 (clasp) R 19148 19150 19055 0 -1 4194304 276 0 0 0 6 0 0 0 20 0 1 0 989551034 2007040 258 1992294400 134512640 136057169 4294956176 18446744073709551615 134820211 0 0 4096 16386 0 0 0 17 1 0 0
/proc/19150/statm: 490 258 181 377 0 110 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1960

[startup+0.101484 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 19150
/proc/meminfo: memFree=832352/2055920 swapFree=4176856/4192956
[pid=19150] ppid=19148 vsize=1960 CPUtime=0.09
/proc/19150/stat : 19150 (clasp) R 19148 19150 19055 0 -1 4194304 282 0 0 0 9 0 0 0 20 0 1 0 989551034 2007040 264 1992294400 134512640 136057169 4294956176 18446744073709551615 134823938 0 0 4096 16386 0 0 0 17 1 0 0
/proc/19150/statm: 490 264 181 377 0 110 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1960

[startup+0.301504 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 19150
/proc/meminfo: memFree=832352/2055920 swapFree=4176856/4192956
[pid=19150] ppid=19148 vsize=2092 CPUtime=0.29
/proc/19150/stat : 19150 (clasp) R 19148 19150 19055 0 -1 4194304 312 0 0 0 29 0 0 0 22 0 1 0 989551034 2142208 294 1992294400 134512640 136057169 4294956176 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/19150/statm: 523 294 181 377 0 143 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2092

[startup+0.70154 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 19150
/proc/meminfo: memFree=832352/2055920 swapFree=4176856/4192956
[pid=19150] ppid=19148 vsize=2092 CPUtime=0.69
/proc/19150/stat : 19150 (clasp) R 19148 19150 19055 0 -1 4194304 341 0 0 0 69 0 0 0 25 0 1 0 989551034 2142208 323 1992294400 134512640 136057169 4294956176 18446744073709551615 134823846 0 0 4096 16386 0 0 0 17 1 0 0
/proc/19150/statm: 523 323 181 377 0 143 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2092

[startup+1.50162 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 19151
/proc/meminfo: memFree=831704/2055920 swapFree=4176856/4192956
[pid=19150] ppid=19148 vsize=2356 CPUtime=1.49
/proc/19150/stat : 19150 (clasp) R 19148 19150 19055 0 -1 4194304 385 0 0 0 149 0 0 0 25 0 1 0 989551034 2412544 367 1992294400 134512640 136057169 4294956176 18446744073709551615 134824405 0 0 4096 16386 0 0 0 17 1 0 0
/proc/19150/statm: 589 367 181 377 0 209 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2356

[startup+3.10176 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 19151
/proc/meminfo: memFree=831384/2055920 swapFree=4176856/4192956
[pid=19150] ppid=19148 vsize=2488 CPUtime=3.09
/proc/19150/stat : 19150 (clasp) R 19148 19150 19055 0 -1 4194304 434 0 0 0 309 0 0 0 25 0 1 0 989551034 2547712 416 1992294400 134512640 136057169 4294956176 18446744073709551615 134824014 0 0 4096 16386 0 0 0 17 1 0 0
/proc/19150/statm: 622 416 181 377 0 242 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2488

[startup+6.30107 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 19151
/proc/meminfo: memFree=831000/2055920 swapFree=4176856/4192956
[pid=19150] ppid=19148 vsize=2752 CPUtime=6.29
/proc/19150/stat : 19150 (clasp) R 19148 19150 19055 0 -1 4194304 490 0 0 0 629 0 0 0 25 0 1 0 989551034 2818048 472 1992294400 134512640 136057169 4294956176 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/19150/statm: 688 472 181 377 0 308 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2752

[startup+12.7027 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 19151
/proc/meminfo: memFree=830552/2055920 swapFree=4176856/4192956
[pid=19150] ppid=19148 vsize=3148 CPUtime=12.69
/proc/19150/stat : 19150 (clasp) R 19148 19150 19055 0 -1 4194304 588 0 0 0 1269 0 0 0 25 0 1 0 989551034 3223552 570 1992294400 134512640 136057169 4294956176 18446744073709551615 134828403 0 0 4096 16386 0 0 0 17 1 0 0
/proc/19150/statm: 787 570 181 377 0 407 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3148

[startup+25.5019 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 19151
/proc/meminfo: memFree=829976/2055920 swapFree=4176856/4192956
[pid=19150] ppid=19148 vsize=3680 CPUtime=25.49
/proc/19150/stat : 19150 (clasp) R 19148 19150 19055 0 -1 4194304 719 0 0 0 2549 0 0 0 25 0 1 0 989551034 3768320 701 1992294400 134512640 136057169 4294956176 18446744073709551615 135459153 0 0 4096 16386 0 0 0 17 1 0 0
/proc/19150/statm: 920 701 181 377 0 540 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 3680

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

[startup+38.3021 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 19151
/proc/meminfo: memFree=829656/2055920 swapFree=4176856/4192956
[pid=19150] ppid=19148 vsize=3944 CPUtime=38.28
/proc/19150/stat : 19150 (clasp) R 19148 19150 19055 0 -1 4194304 804 0 0 0 3828 0 0 0 25 0 1 0 989551034 4038656 786 1992294400 134512640 136057169 4294956176 18446744073709551615 134823812 0 0 4096 16386 0 0 0 17 1 0 0
/proc/19150/statm: 986 786 181 377 0 606 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 3944

[startup+41.5014 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 19151
/proc/meminfo: memFree=829592/2055920 swapFree=4176856/4192956
[pid=19150] ppid=19148 vsize=4084 CPUtime=41.48
/proc/19150/stat : 19150 (clasp) R 19148 19150 19055 0 -1 4194304 817 0 0 0 4148 0 0 0 25 0 1 0 989551034 4182016 799 1992294400 134512640 136057169 4294956176 18446744073709551615 134823938 0 0 4096 16386 0 0 0 17 1 0 0
/proc/19150/statm: 1021 799 181 377 0 641 0
Current children cumulated CPU time (s) 41.48
Current children cumulated vsize (KiB) 4084

[startup+43.1015 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 19151
/proc/meminfo: memFree=829528/2055920 swapFree=4176856/4192956
[pid=19150] ppid=19148 vsize=4084 CPUtime=43.08
/proc/19150/stat : 19150 (clasp) R 19148 19150 19055 0 -1 4194304 831 0 0 0 4308 0 0 0 25 0 1 0 989551034 4182016 813 1992294400 134512640 136057169 4294956176 18446744073709551615 134823876 0 0 4096 16386 0 0 0 17 1 0 0
/proc/19150/statm: 1021 813 181 377 0 641 0
Current children cumulated CPU time (s) 43.08
Current children cumulated vsize (KiB) 4084

[startup+44.7017 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 19151
/proc/meminfo: memFree=829464/2055920 swapFree=4176856/4192956
[pid=19150] ppid=19148 vsize=4084 CPUtime=44.68
/proc/19150/stat : 19150 (clasp) R 19148 19150 19055 0 -1 4194304 834 0 0 0 4468 0 0 0 25 0 1 0 989551034 4182016 816 1992294400 134512640 136057169 4294956176 18446744073709551615 134823850 0 0 4096 16386 0 0 0 17 1 0 0
/proc/19150/statm: 1021 816 181 377 0 641 0
Current children cumulated CPU time (s) 44.68
Current children cumulated vsize (KiB) 4084

[startup+45.1057 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 19151
/proc/meminfo: memFree=829464/2055920 swapFree=4176856/4192956
[pid=19150] ppid=19148 vsize=4084 CPUtime=45.08
/proc/19150/stat : 19150 (clasp) R 19148 19150 19055 0 -1 4194304 837 0 0 0 4508 0 0 0 25 0 1 0 989551034 4182016 819 1992294400 134512640 136057169 4294956176 18446744073709551615 134828479 0 0 4096 16386 0 0 0 17 1 0 0
/proc/19150/statm: 1021 819 181 377 0 641 0
Current children cumulated CPU time (s) 45.08
Current children cumulated vsize (KiB) 4084

[startup+45.5017 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 19151
/proc/meminfo: memFree=829464/2055920 swapFree=4176856/4192956
[pid=19150] ppid=19148 vsize=4220 CPUtime=45.48
/proc/19150/stat : 19150 (clasp) R 19148 19150 19055 0 -1 4194304 841 0 0 0 4548 0 0 0 25 0 1 0 989551034 4321280 823 1992294400 134512640 136057169 4294956176 18446744073709551615 134618253 0 0 4096 16386 0 0 0 17 1 0 0
/proc/19150/statm: 1055 823 181 377 0 675 0
Current children cumulated CPU time (s) 45.48
Current children cumulated vsize (KiB) 4220

Child status: 10
Real time (s): 45.5542
CPU time (s): 45.5411
CPU user time (s): 45.5381
CPU system time (s): 0.002999
CPU usage (%): 99.9712
Max. virtual memory (cumulated for all children) (KiB): 4220

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 45.5381
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 847
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= 88

runsolver used 0.052991 second user time and 0.119981 second system time

The end

Launcher Data 

Begin job on node8 at 2009-03-29 06:42:53
IDJOB=1518600
IDBENCH=70693
IDSOLVER=508
FILE ID=node8/1518600-1238301773
PBS_JOBID= 9061072
Free space on /tmp= 64056 MiB

SOLVER NAME= clasp 1.2.0-SAT09-32
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/400/unif-k3-r4.25-v400-c1700-S1326039470-063.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-1518600-1238301773/watcher-1518600-1238301773 -o /tmp/evaluation-result-1518600-1238301773/solver-1518600-1238301773 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/clasp --file=HOME/instance-1518600-1238301773.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= 2e40295bba29f3b31b5d5a615b1b160f
RANDOM SEED=113700955

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:        832832 kB
Buffers:         95352 kB
Cached:        1024108 kB
SwapCached:       9204 kB
Active:         154312 kB
Inactive:       975720 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        832832 kB
SwapTotal:     4192956 kB
SwapFree:      4176856 kB
Dirty:            1880 kB
Writeback:           0 kB
Mapped:          16320 kB
Slab:            78796 kB
Committed_AS:  2568280 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 06:43:39