Trace number 1522348

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
iPAWS 2009-03-22SAT 1.71574 1.71621

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/380/
unif-k3-r4.25-v380-c1615-S1804335510-002.cnf
MD5SUM6253dd31bd16eb30b646e4014a5ca88d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.577911
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 

1.69/1.71	s SATISFIABLE
1.69/1.71	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
1.69/1.71	c input file instance-1522348-1238598583.cnf, flips 1397665

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-1522348-1238598583/watcher-1522348-1238598583 -o /tmp/evaluation-result-1522348-1238598583/solver-1522348-1238598583 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/iPAWS HOME/instance-1522348-1238598583.cnf 394804441 

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 0.99 0.99 3/71 23035
/proc/meminfo: memFree=1245128/2055920 swapFree=4170332/4192956
[pid=23035] ppid=23033 vsize=335916 CPUtime=0
/proc/23035/stat : 23035 (iPAWS) R 23033 23035 22937 0 -1 4194304 562 0 0 0 0 0 0 0 18 0 1 0 1132521354 343977984 546 1992294400 134512640 135114423 4294956224 18446744073709551615 134534175 0 0 4096 0 0 0 0 17 1 0 0
/proc/23035/statm: 83979 551 54 146 0 83831 0

[startup+0.057661 s]
/proc/loadavg: 1.00 0.99 0.99 3/71 23035
/proc/meminfo: memFree=1245128/2055920 swapFree=4170332/4192956
[pid=23035] ppid=23033 vsize=335916 CPUtime=0.05
/proc/23035/stat : 23035 (iPAWS) R 23033 23035 22937 0 -1 4194304 926 0 0 0 5 0 0 0 18 0 1 0 1132521354 343977984 910 1992294400 134512640 135114423 4294956224 18446744073709551615 134516985 0 0 4096 0 0 0 0 17 1 0 0
/proc/23035/statm: 83979 910 57 146 0 83831 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 335916

[startup+0.102668 s]
/proc/loadavg: 1.00 0.99 0.99 3/71 23035
/proc/meminfo: memFree=1245128/2055920 swapFree=4170332/4192956
[pid=23035] ppid=23033 vsize=335916 CPUtime=0.09
/proc/23035/stat : 23035 (iPAWS) R 23033 23035 22937 0 -1 4194304 926 0 0 0 9 0 0 0 18 0 1 0 1132521354 343977984 910 1992294400 134512640 135114423 4294956224 18446744073709551615 134546061 0 0 4096 0 0 0 0 17 1 0 0
/proc/23035/statm: 83979 910 57 146 0 83831 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 335916

[startup+0.302705 s]
/proc/loadavg: 1.00 0.99 0.99 3/71 23035
/proc/meminfo: memFree=1245128/2055920 swapFree=4170332/4192956
[pid=23035] ppid=23033 vsize=335916 CPUtime=0.29
/proc/23035/stat : 23035 (iPAWS) R 23033 23035 22937 0 -1 4194304 926 0 0 0 29 0 0 0 19 0 1 0 1132521354 343977984 910 1992294400 134512640 135114423 4294956224 18446744073709551615 134550949 0 0 4096 0 0 0 0 17 1 0 0
/proc/23035/statm: 83979 910 57 146 0 83831 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 335916

[startup+0.701782 s]
/proc/loadavg: 1.00 0.99 0.99 3/71 23035
/proc/meminfo: memFree=1245128/2055920 swapFree=4170332/4192956
[pid=23035] ppid=23033 vsize=335916 CPUtime=0.69
/proc/23035/stat : 23035 (iPAWS) R 23033 23035 22937 0 -1 4194304 926 0 0 0 69 0 0 0 22 0 1 0 1132521354 343977984 910 1992294400 134512640 135114423 4294956224 18446744073709551615 134515179 0 0 4096 0 0 0 0 17 1 0 0
/proc/23035/statm: 83979 910 57 146 0 83831 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 335916

[startup+1.50194 s]
/proc/loadavg: 1.00 0.99 0.99 2/72 23036
/proc/meminfo: memFree=1241600/2055920 swapFree=4170332/4192956
[pid=23035] ppid=23033 vsize=335916 CPUtime=1.49
/proc/23035/stat : 23035 (iPAWS) R 23033 23035 22937 0 -1 4194304 926 0 0 0 149 0 0 0 25 0 1 0 1132521354 343977984 910 1992294400 134512640 135114423 4294956224 18446744073709551615 134516669 0 0 4096 0 0 0 0 17 1 0 0
/proc/23035/statm: 83979 910 57 146 0 83831 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 335916

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

[startup+1.70197 s]
/proc/loadavg: 1.00 0.99 0.99 2/72 23036
/proc/meminfo: memFree=1241600/2055920 swapFree=4170332/4192956
[pid=23035] ppid=23033 vsize=335916 CPUtime=1.69
/proc/23035/stat : 23035 (iPAWS) R 23033 23035 22937 0 -1 4194304 926 0 0 0 169 0 0 0 25 0 1 0 1132521354 343977984 910 1992294400 134512640 135114423 4294956224 18446744073709551615 134546177 0 0 4096 0 0 0 0 17 1 0 0
/proc/23035/statm: 83979 910 57 146 0 83831 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 335916

Child status: 0
Real time (s): 1.71621
CPU time (s): 1.71574
CPU user time (s): 1.70874
CPU system time (s): 0.006998
CPU usage (%): 99.9726
Max. virtual memory (cumulated for all children) (KiB): 335916

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.70874
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= 934
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= 2

runsolver used 0.003999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node38 at 2009-04-01 17:09:43
IDJOB=1522348
IDBENCH=70743
IDSOLVER=516
FILE ID=node38/1522348-1238598583
PBS_JOBID= 9068334
Free space on /tmp= 65528 MiB

SOLVER NAME= iPAWS 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/380/unif-k3-r4.25-v380-c1615-S1804335510-002.cnf
COMMAND LINE= HOME/iPAWS BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1522348-1238598583/watcher-1522348-1238598583 -o /tmp/evaluation-result-1522348-1238598583/solver-1522348-1238598583 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/iPAWS HOME/instance-1522348-1238598583.cnf 394804441

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

MD5SUM BENCH= 6253dd31bd16eb30b646e4014a5ca88d
RANDOM SEED=394804441

node38.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		: 3000.259
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	: 5931.00
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		: 3000.259
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:       1245608 kB
Buffers:         95452 kB
Cached:         612068 kB
SwapCached:      11172 kB
Active:         206948 kB
Inactive:       513136 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1245608 kB
SwapTotal:     4192956 kB
SwapFree:      4170332 kB
Dirty:             700 kB
Writeback:           0 kB
Mapped:          18328 kB
Slab:            75484 kB
Committed_AS:  3246324 kB
PageTables:       1988 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= 65528 MiB
End job on node38 at 2009-04-01 17:09:44