Trace number 1733249

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 0.38294 0.382293

General information on the benchmark

NameCRAFTED/modcircuits/
mod5block_1var_7gates.cnf
MD5SUM7bf73d9c0408bae76b2e1355fb2178d8
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.304953
Satisfiable
(Un)Satisfiability was proved
Number of variables353
Number of clauses46967
Sum of the clauses size271042
Maximum clause length23
Minimum clause length1
Number of clauses of size 164
Number of clauses of size 21176
Number of clauses of size 31
Number of clauses of size 41349
Number of clauses of size 53139
Number of clauses of size over 541238

Solver Data 

0.29/0.37	c clasp version 1.2.0-SAT09 
0.29/0.37	c Reading from ...786430/instance-1733249-1240786430.cnf
0.29/0.37	c Reading      : Done(0.030s)
0.29/0.37	c Preprocessing: |-\Done(0.140s)
0.29/0.37	c Solving...
0.29/0.37	c Model: 1
0.29/0.37	v 1 -2 -3 -4 -5 -6 7 -8 9 -10
0.29/0.37	v 11 -12 13 -14 -15 16 17 18 -19 -20
0.29/0.37	v -21 22 -23 -24 -25 -26 -27 28 -29 -30
0.29/0.37	v -31 -32 -33 -34 35 -36 -37 -38 -39 -40
0.29/0.37	v -41 -42 43 -44 -45 -46 -47 -48 49 -50
0.29/0.37	v -51 -52 -53 -54 -55 -56 -57 58 -59 -60
0.29/0.37	v -61 62 -63 -64 -65 -66 -67 -68 -69 -70
0.29/0.37	v -71 -72 -73 -74 75 -76 77 -78 -79 -80
0.29/0.37	v -81 -82 -83 -84 -85 -86 -87 -88 -89 -90
0.29/0.37	v -91 92 -93 -94 -95 -96 -97 -98 99 -100
0.29/0.37	v -101 -102 -103 -104 -105 -106 -107 -108 -109 -110
0.29/0.37	v -111 -112 -113 114 -115 -116 -117 118 119 -120
0.29/0.37	v -121 122 -123 -124 -125 126 -127 -128 -129 -130
0.29/0.37	v -131 132 133 -134 -135 136 -137 138 -139 -140
0.29/0.37	v -141 -142 -143 144 -145 146 147 -148 149 -150
0.29/0.37	v -151 -152 153 154 -155 156 157 158 159 -160
0.29/0.37	v -161 162 -163 -164 165 166 -167 -168 -169 170
0.29/0.37	v -171 172 173 -174 175 176 -177 178 -179 180
0.29/0.37	v -181 -182 -183 184 185 186 187 -188 189 190
0.29/0.37	v -191 -192 193 194 195 196 197 198 199 200
0.29/0.37	v 201 202 -203 204 205 206 207 208 -209 -210
0.29/0.37	v 211 212 213 214 215 216 -217 -218 219 220
0.29/0.37	v -221 -222 -223 224 -225 -226 -227 -228 -229 -230
0.29/0.37	v -231 -232 -233 -234 -235 -236 237 238 -239 -240
0.29/0.37	v 241 -242 243 -244 245 246 -247 248 249 -250
0.29/0.37	v 251 -252 -253 254 -255 256 257 258 259 -260
0.29/0.37	v -261 -262 -263 264 -265 -266 -267 -268 -269 270
0.29/0.37	v -271 272 -273 -274 -275 -276 -277 -278 -279 280
0.29/0.37	v 281 282 -283 -284 285 -286 287 -288 289 -290
0.29/0.37	v 291 -292 293 -294 295 -296 -297 298 299 -300
0.29/0.37	v -301 -302 303 304 -305 -306 -307 -308 -309 310
0.29/0.37	v -311 312 313 314 315 316 317 318 319 -320
0.29/0.37	v -321 -322 -323 -324 -325 -326 327 -328 -329 -330
0.29/0.37	v 331 -332 -333 -334 -335 -336 -337 -338 -339 340
0.29/0.37	v -341 342 343 344 345 346 347 348 349 350
0.29/0.37	v 351 352 353 0 
0.29/0.38	
0.29/0.38	c Models    : 1+    
0.29/0.38	c Time         : 0.370s (Solve: 0.200s)
0.29/0.38	s SATISFIABLE

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1733249-1240786430/watcher-1733249-1240786430 -o /tmp/evaluation-result-1733249-1240786430/solver-1733249-1240786430 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/clasp --file=HOME/instance-1733249-1240786430.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 3/64 28724
/proc/meminfo: memFree=1656200/2055920 swapFree=4192812/4192956
[pid=28724] ppid=28722 vsize=1832 CPUtime=0
/proc/28724/stat : 28724 (clasp) R 28722 28724 27573 0 -1 4194304 225 0 0 0 0 0 0 0 18 0 1 0 106676167 1875968 209 1992294400 134512640 136057169 4294956144 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28724/statm: 458 210 144 377 0 78 0

[startup+0.0382609 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 28724
/proc/meminfo: memFree=1656200/2055920 swapFree=4192812/4192956
[pid=28724] ppid=28722 vsize=3508 CPUtime=0.03
/proc/28724/stat : 28724 (clasp) R 28722 28724 27573 0 -1 4194304 673 0 0 0 3 0 0 0 18 0 1 0 106676167 3592192 616 1992294400 134512640 136057169 4294956144 18446744073709551615 135502702 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28724/statm: 877 616 144 377 0 497 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3508

[startup+0.101266 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 28724
/proc/meminfo: memFree=1656200/2055920 swapFree=4192812/4192956
[pid=28724] ppid=28722 vsize=4720 CPUtime=0.09
/proc/28724/stat : 28724 (clasp) R 28722 28724 27573 0 -1 4194304 1008 0 0 0 9 0 0 0 18 0 1 0 106676167 4833280 950 1992294400 134512640 136057169 4294956144 18446744073709551615 134774437 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28724/statm: 1180 950 168 377 0 800 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4720

[startup+0.301289 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 28724
/proc/meminfo: memFree=1656200/2055920 swapFree=4192812/4192956
[pid=28724] ppid=28722 vsize=4608 CPUtime=0.29
/proc/28724/stat : 28724 (clasp) R 28722 28724 27573 0 -1 4194304 1051 0 0 0 29 0 0 0 19 0 1 0 106676167 4718592 947 1992294400 134512640 136057169 4294956144 18446744073709551615 134618141 0 0 4096 16386 0 0 0 17 1 0 0
/proc/28724/statm: 1152 947 183 377 0 772 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4608

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

Child status: 10
Real time (s): 0.382293
CPU time (s): 0.38294
CPU user time (s): 0.375942
CPU system time (s): 0.006998
CPU usage (%): 100.169
Max. virtual memory (cumulated for all children) (KiB): 4720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.375942
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1055
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 0.002999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node21 at 2009-04-27 00:53:50
IDJOB=1733249
IDBENCH=71137
IDSOLVER=508
FILE ID=node21/1733249-1240786430
PBS_JOBID= 9187264
Free space on /tmp= 66344 MiB

SOLVER NAME= clasp 1.2.0-SAT09-32
BENCH NAME= SAT09/CRAFTED/modcircuits/mod5block_1var_7gates.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-1733249-1240786430/watcher-1733249-1240786430 -o /tmp/evaluation-result-1733249-1240786430/solver-1733249-1240786430 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/clasp --file=HOME/instance-1733249-1240786430.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= 7bf73d9c0408bae76b2e1355fb2178d8
RANDOM SEED=255498380

node21.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		: 3000.233
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		: 3000.233
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:       1656616 kB
Buffers:         49440 kB
Cached:         260912 kB
SwapCached:          0 kB
Active:         121148 kB
Inactive:       203080 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1656616 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3368 kB
Writeback:           0 kB
Mapped:          23660 kB
Slab:            61032 kB
Committed_AS:   450536 kB
PageTables:       1376 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= 66340 MiB
End job on node21 at 2009-04-27 00:53:50