./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c573b473fe5d13973daf8eaca36a6666498a98a ......................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:49:32,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:49:32,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:49:32,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:49:32,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:49:32,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:49:32,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:49:32,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:49:32,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:49:32,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:49:32,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:49:32,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:49:32,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:49:32,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:49:32,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:49:32,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:49:32,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:49:32,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:49:32,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:49:32,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:49:32,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:49:32,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:49:32,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:49:32,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:49:32,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:49:32,209 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:49:32,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:49:32,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:49:32,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:49:32,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:49:32,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:49:32,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:49:32,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:49:32,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:49:32,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:49:32,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:49:32,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:49:32,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:49:32,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:49:32,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:49:32,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:49:32,228 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-26 04:49:32,288 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:49:32,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:49:32,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:49:32,293 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:49:32,293 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:49:32,293 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:49:32,293 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:49:32,294 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:49:32,294 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:49:32,295 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:49:32,296 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:49:32,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:49:32,296 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 04:49:32,297 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:49:32,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:49:32,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 04:49:32,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:49:32,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:49:32,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:49:32,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:49:32,298 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 04:49:32,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:49:32,299 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:49:32,299 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:49:32,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:49:32,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:49:32,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:49:32,300 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:49:32,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:49:32,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:49:32,301 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:49:32,301 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:49:32,303 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:49:32,304 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c573b473fe5d13973daf8eaca36a6666498a98a [2020-10-26 04:49:32,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:49:32,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:49:32,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:49:32,794 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:49:32,795 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:49:32,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i [2020-10-26 04:49:32,884 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c0c87006/fe50b3547a5d49fa8666dab1743fb6ae/FLAGb21113a39 [2020-10-26 04:49:33,641 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:49:33,642 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i [2020-10-26 04:49:33,652 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c0c87006/fe50b3547a5d49fa8666dab1743fb6ae/FLAGb21113a39 [2020-10-26 04:49:33,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c0c87006/fe50b3547a5d49fa8666dab1743fb6ae [2020-10-26 04:49:33,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:49:33,979 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:49:33,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:49:33,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:49:33,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:49:33,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:49:33" (1/1) ... [2020-10-26 04:49:33,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20aaac85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:33, skipping insertion in model container [2020-10-26 04:49:33,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:49:33" (1/1) ... [2020-10-26 04:49:34,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:49:34,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:49:34,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:49:34,268 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:49:34,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:49:34,322 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:49:34,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:34 WrapperNode [2020-10-26 04:49:34,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:49:34,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:49:34,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:49:34,325 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:49:34,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:34" (1/1) ... [2020-10-26 04:49:34,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:34" (1/1) ... [2020-10-26 04:49:34,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:49:34,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:49:34,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:49:34,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:49:34,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:34" (1/1) ... [2020-10-26 04:49:34,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:34" (1/1) ... [2020-10-26 04:49:34,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:34" (1/1) ... [2020-10-26 04:49:34,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:34" (1/1) ... [2020-10-26 04:49:34,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:34" (1/1) ... [2020-10-26 04:49:34,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:34" (1/1) ... [2020-10-26 04:49:34,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:34" (1/1) ... [2020-10-26 04:49:34,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:49:34,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:49:34,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:49:34,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:49:34,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:34,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 04:49:34,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 04:49:34,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:49:34,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:49:34,772 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:49:34,772 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-10-26 04:49:34,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:49:34 BoogieIcfgContainer [2020-10-26 04:49:34,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:49:34,778 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:49:34,779 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:49:34,788 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:49:34,790 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:49:34,791 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:49:33" (1/3) ... [2020-10-26 04:49:34,796 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31c29cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:49:34, skipping insertion in model container [2020-10-26 04:49:34,796 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:49:34,796 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:49:34" (2/3) ... [2020-10-26 04:49:34,800 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31c29cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:49:34, skipping insertion in model container [2020-10-26 04:49:34,800 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:49:34,800 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:49:34" (3/3) ... [2020-10-26 04:49:34,806 INFO L373 chiAutomizerObserver]: Analyzing ICFG MADWiFi-encode_ie_ok.i [2020-10-26 04:49:34,958 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:49:34,958 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:49:34,958 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:49:34,958 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:49:34,959 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:49:34,959 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:49:34,959 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:49:34,959 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:49:34,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2020-10-26 04:49:35,020 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2020-10-26 04:49:35,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:49:35,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:49:35,030 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:49:35,030 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:49:35,031 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:49:35,031 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2020-10-26 04:49:35,034 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2020-10-26 04:49:35,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:49:35,035 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:49:35,036 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:49:35,036 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:49:35,046 INFO L794 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 11#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~post6, main_~p~0, main_~i~0, main_~leader_len~0, main_~bufsize~0, main_~bufsize_0~0, main_~ielen~0;havoc main_~p~0;havoc main_~i~0;havoc main_~leader_len~0;havoc main_~bufsize~0;havoc main_~bufsize_0~0;havoc main_~ielen~0;main_~leader_len~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~bufsize~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~ielen~0 := main_#t~nondet5;havoc main_#t~nondet5; 27#L35true assume !!(main_~leader_len~0 < 1000000); 19#L36true assume !!(main_~bufsize~0 < 1000000); 20#L37true assume !!(main_~ielen~0 < 1000000); 8#L38true assume main_~leader_len~0 > 0; 6#L38-1true assume main_~bufsize~0 > 0; 21#L39true assume main_~ielen~0 > 0; 10#L40true assume !(main_~bufsize~0 < main_~leader_len~0);main_~p~0 := 0;main_~bufsize_0~0 := main_~bufsize~0;main_~bufsize~0 := main_~bufsize~0 - main_~leader_len~0;main_~p~0 := main_~p~0 + main_~leader_len~0; 3#L47true assume !(main_~bufsize~0 < 2 * main_~ielen~0);main_~i~0 := 0; 18#L49-3true [2020-10-26 04:49:35,047 INFO L796 eck$LassoCheckResult]: Loop: 18#L49-3true assume !!(main_~i~0 < main_~ielen~0 && main_~bufsize~0 > 2);__VERIFIER_assert_#in~cond := (if 0 <= main_~p~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 9#L18true assume !(0 == __VERIFIER_assert_~cond); 7#L18-2true __VERIFIER_assert_#in~cond := (if 1 + main_~p~0 < main_~bufsize_0~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 4#L18-3true assume !(0 == __VERIFIER_assert_~cond); 16#L18-5true main_~p~0 := 2 + main_~p~0; 5#L49-2true main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 18#L49-3true [2020-10-26 04:49:35,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:49:35,055 INFO L82 PathProgramCache]: Analyzing trace with hash 763959638, now seen corresponding path program 1 times [2020-10-26 04:49:35,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:49:35,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934444142] [2020-10-26 04:49:35,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:49:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:35,189 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:35,212 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:35,235 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:49:35,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:49:35,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1826073825, now seen corresponding path program 1 times [2020-10-26 04:49:35,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:49:35,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989101395] [2020-10-26 04:49:35,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:49:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:35,259 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:35,276 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:35,279 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:49:35,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:49:35,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1037281100, now seen corresponding path program 1 times [2020-10-26 04:49:35,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:49:35,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105272128] [2020-10-26 04:49:35,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:49:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:35,343 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:49:35,399 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:49:35,413 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:49:35,512 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-26 04:49:35,513 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-26 04:49:35,619 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:49:35,620 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:49:35,620 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:49:35,620 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:49:35,621 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:49:35,621 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:35,621 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:49:35,622 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:49:35,622 INFO L133 ssoRankerPreferences]: Filename of dumped script: MADWiFi-encode_ie_ok.i_Iteration1_Loop [2020-10-26 04:49:35,622 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:49:35,623 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:49:35,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:35,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:35,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:35,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:35,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:35,844 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:49:35,846 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:49:35,856 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:49:35,856 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:35,867 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:49:35,867 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:49:35,912 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:49:35,912 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:49:35,959 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:49:35,959 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:36,126 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:49:36,128 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:49:36,128 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:49:36,129 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:49:36,129 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:49:36,129 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:49:36,129 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:36,129 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:49:36,129 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:49:36,130 INFO L133 ssoRankerPreferences]: Filename of dumped script: MADWiFi-encode_ie_ok.i_Iteration1_Loop [2020-10-26 04:49:36,130 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:49:36,130 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:49:36,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:36,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:36,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:36,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:36,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:49:36,272 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:49:36,278 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:49:36,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:49:36,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:49:36,292 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:49:36,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:49:36,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:49:36,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:49:36,296 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:49:36,297 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:36,301 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:49:36,346 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:49:36,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:49:36,348 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:49:36,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:49:36,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:49:36,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:49:36,350 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:49:36,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:36,353 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:49:36,391 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-26 04:49:36,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:49:36,394 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:49:36,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:49:36,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:49:36,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:49:36,396 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:49:36,396 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:36,400 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:49:36,405 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 04:49:36,405 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:49:36,412 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:49:36,415 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:49:36,415 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:49:36,416 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~ielen~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~ielen~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-10-26 04:49:36,452 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:49:36,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:49:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:49:36,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:49:36,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:49:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:49:36,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:49:36,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:49:36,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:49:36,591 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-26 04:49:36,593 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states. Second operand 3 states. [2020-10-26 04:49:36,655 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states.. Second operand 3 states. Result 54 states and 75 transitions. Complement of second has 7 states. [2020-10-26 04:49:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 04:49:36,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 04:49:36,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 58 transitions. [2020-10-26 04:49:36,661 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 58 transitions. Stem has 10 letters. Loop has 6 letters. [2020-10-26 04:49:36,662 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:49:36,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 58 transitions. Stem has 16 letters. Loop has 6 letters. [2020-10-26 04:49:36,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:49:36,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 58 transitions. Stem has 10 letters. Loop has 12 letters. [2020-10-26 04:49:36,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:49:36,665 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 75 transitions. [2020-10-26 04:49:36,670 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:49:36,673 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 0 states and 0 transitions. [2020-10-26 04:49:36,675 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:49:36,675 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:49:36,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:49:36,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:49:36,676 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:49:36,676 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:49:36,676 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:49:36,677 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:49:36,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:49:36,677 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:49:36,677 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:49:36,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:49:36 BoogieIcfgContainer [2020-10-26 04:49:36,685 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:49:36,686 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:49:36,686 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:49:36,686 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:49:36,687 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:49:34" (3/4) ... [2020-10-26 04:49:36,690 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:49:36,691 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:49:36,694 INFO L168 Benchmark]: Toolchain (without parser) took 2718.39 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 24.1 MB in the beginning and 29.2 MB in the end (delta: -5.1 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. [2020-10-26 04:49:36,695 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 46.1 MB. Free memory was 32.9 MB in the beginning and 32.9 MB in the end (delta: 42.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:49:36,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.28 ms. Allocated memory is still 46.1 MB. Free memory was 23.5 MB in the beginning and 25.1 MB in the end (delta: -1.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:49:36,697 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.06 ms. Allocated memory is still 46.1 MB. Free memory was 25.1 MB in the beginning and 23.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:49:36,698 INFO L168 Benchmark]: Boogie Preprocessor took 27.31 ms. Allocated memory is still 46.1 MB. Free memory was 23.6 MB in the beginning and 22.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:49:36,699 INFO L168 Benchmark]: RCFGBuilder took 383.83 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.4 MB in the beginning and 41.1 MB in the end (delta: -18.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:49:36,700 INFO L168 Benchmark]: BuchiAutomizer took 1906.78 ms. Allocated memory is still 56.6 MB. Free memory was 40.8 MB in the beginning and 29.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2020-10-26 04:49:36,701 INFO L168 Benchmark]: Witness Printer took 5.41 ms. Allocated memory is still 56.6 MB. Free memory was 29.6 MB in the beginning and 29.2 MB in the end (delta: 332.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:49:36,705 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 46.1 MB. Free memory was 32.9 MB in the beginning and 32.9 MB in the end (delta: 42.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 342.28 ms. Allocated memory is still 46.1 MB. Free memory was 23.5 MB in the beginning and 25.1 MB in the end (delta: -1.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.06 ms. Allocated memory is still 46.1 MB. Free memory was 25.1 MB in the beginning and 23.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.31 ms. Allocated memory is still 46.1 MB. Free memory was 23.6 MB in the beginning and 22.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 383.83 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.4 MB in the beginning and 41.1 MB in the end (delta: -18.7 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1906.78 ms. Allocated memory is still 56.6 MB. Free memory was 40.8 MB in the beginning and 29.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.41 ms. Allocated memory is still 56.6 MB. Free memory was 29.6 MB in the beginning and 29.2 MB in the end (delta: 332.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function ielen + -1 * i and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 30 SDtfs, 39 SDslu, 12 SDs, 0 SdLazy, 6 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital32 mio100 ax100 hnf100 lsp46 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq139 hnf95 smp100 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...