Trace number 1534812

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
adaptg2wsat2009 2009-03-23SAT 0.025995 0.025661

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/380/
unif-k3-r4.25-v380-c1615-S1036996799-006.cnf
MD5SUMaea037edf2192f628decdd3193ff0d42
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008997
Satisfiable
(Un)Satisfiability was proved
Number of variables380
Number of clauses1615
Sum of the clauses size4845
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31615
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.01/0.02	c 0 clauses are redundant and removed
0.01/0.02	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.01/0.02	c 0 vars are fixed and 0 clauses are removed after lookahead
0.01/0.02	c initial seed is 281343005
0.01/0.02	c try 1 flip j 16433 walk 13942 seed 985201542
0.01/0.02	c A solution is found
0.01/0.02	s SATISFIABLE
0.01/0.02	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 -360 361 -362 363 -364 365 366 367 368 369 -370 371 372 -373 374 375 376 -377 378 379 -380 
0.01/0.02	v 0 
0.01/0.02	c Done (mycputime is 0.020 seconds)

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-1534812-1238596754/watcher-1534812-1238596754 -o /tmp/evaluation-result-1534812-1238596754/solver-1534812-1238596754 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/adaptg2wsat2009 HOME/instance-1534812-1238596754.cnf 281343005 

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: 0.92 0.98 0.99 3/70 12140
/proc/meminfo: memFree=1002176/2055920 swapFree=4170592/4192956
[pid=12140] ppid=12138 vsize=415928 CPUtime=0
/proc/12140/stat : 12140 (adaptg2wsat2009) R 12138 12140 11329 0 -1 4194304 134 0 0 0 0 0 0 0 18 0 1 0 1132338009 425910272 117 1992294400 134512640 135106963 4294956192 18446744073709551615 134523245 0 0 4096 0 0 0 0 17 1 0 0
/proc/12140/statm: 103982 117 50 145 0 102858 0

[startup+0.0124219 s]
/proc/loadavg: 0.92 0.98 0.99 3/70 12140
/proc/meminfo: memFree=1002176/2055920 swapFree=4170592/4192956
[pid=12140] ppid=12138 vsize=415932 CPUtime=0.01
/proc/12140/stat : 12140 (adaptg2wsat2009) R 12138 12140 11329 0 -1 4194304 188 0 0 0 1 0 0 0 18 0 1 0 1132338009 425914368 171 1992294400 134512640 135106963 4294956192 18446744073709551615 134532042 0 0 4096 0 0 0 0 17 1 0 0
/proc/12140/statm: 103983 171 60 145 0 102859 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 415932

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

[startup+0.0124219 s]
/proc/loadavg: 0.92 0.98 0.99 3/70 12140
/proc/meminfo: memFree=1002176/2055920 swapFree=4170592/4192956
[pid=12140] ppid=12138 vsize=415932 CPUtime=0.01
/proc/12140/stat : 12140 (adaptg2wsat2009) R 12138 12140 11329 0 -1 4194304 188 0 0 0 1 0 0 0 18 0 1 0 1132338009 425914368 171 1992294400 134512640 135106963 4294956192 18446744073709551615 134532042 0 0 4096 0 0 0 0 17 1 0 0
/proc/12140/statm: 103983 171 60 145 0 102859 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 415932

Child status: 10
Real time (s): 0.025661
CPU time (s): 0.025995
CPU user time (s): 0.024996
CPU system time (s): 0.000999
CPU usage (%): 101.301
Max. virtual memory (cumulated for all children) (KiB): 415932

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.024996
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= 199
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= 0

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node45 at 2009-04-01 16:39:14
IDJOB=1534812
IDBENCH=70736
IDSOLVER=542
FILE ID=node45/1534812-1238596754
PBS_JOBID= 9062248
Free space on /tmp= 66416 MiB

SOLVER NAME= adaptg2wsat2009 2009-03-23
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/380/unif-k3-r4.25-v380-c1615-S1036996799-006.cnf
COMMAND LINE= HOME/adaptg2wsat2009 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1534812-1238596754/watcher-1534812-1238596754 -o /tmp/evaluation-result-1534812-1238596754/solver-1534812-1238596754 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/adaptg2wsat2009 HOME/instance-1534812-1238596754.cnf 281343005

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

MD5SUM BENCH= aea037edf2192f628decdd3193ff0d42
RANDOM SEED=281343005

node45.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		: 3000.285
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		: 3000.285
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:       1002656 kB
Buffers:        112036 kB
Cached:         832272 kB
SwapCached:      11568 kB
Active:         213524 kB
Inactive:       743784 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1002656 kB
SwapTotal:     4192956 kB
SwapFree:      4170592 kB
Dirty:            4664 kB
Writeback:           0 kB
Mapped:          18696 kB
Slab:            81304 kB
Committed_AS:  2809712 kB
PageTables:       1900 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= 66412 MiB
End job on node45 at 2009-04-01 16:39:14