./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/add_last-alloca-2.i --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/termination-memory-alloca/add_last-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash 83d173a249101326b0d087df992e67eaa15fd4df .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 01:34:12,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:34:12,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:34:12,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:34:12,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:34:12,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:34:12,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:34:12,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:34:12,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:34:12,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:34:12,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:34:12,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:34:12,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:34:12,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:34:12,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:34:12,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:34:12,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:34:12,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:34:12,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:34:12,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:34:12,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:34:12,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:34:12,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:34:12,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:34:12,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:34:12,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:34:12,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:34:12,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:34:12,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:34:12,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:34:12,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:34:12,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:34:12,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:34:12,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:34:12,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:34:12,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:34:12,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:34:12,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:34:12,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:34:12,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:34:12,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:34:12,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-07-29 01:34:12,218 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:34:12,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:34:12,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:34:12,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:34:12,220 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:34:12,220 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 01:34:12,220 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 01:34:12,221 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 01:34:12,221 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 01:34:12,221 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 01:34:12,221 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 01:34:12,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:34:12,222 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:34:12,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:34:12,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:34:12,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 01:34:12,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 01:34:12,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 01:34:12,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:34:12,223 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 01:34:12,224 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:34:12,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 01:34:12,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:34:12,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:34:12,225 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 01:34:12,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:34:12,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:34:12,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:34:12,225 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 01:34:12,226 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 01:34:12,227 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83d173a249101326b0d087df992e67eaa15fd4df [2020-07-29 01:34:12,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:34:12,575 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:34:12,578 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:34:12,580 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:34:12,580 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:34:12,581 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/add_last-alloca-2.i [2020-07-29 01:34:12,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/668e3d79a/dabf5e78b1f8458a87c65d002ab9b564/FLAG3bf033b9f [2020-07-29 01:34:13,110 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:34:13,111 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/add_last-alloca-2.i [2020-07-29 01:34:13,127 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/668e3d79a/dabf5e78b1f8458a87c65d002ab9b564/FLAG3bf033b9f [2020-07-29 01:34:13,400 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/668e3d79a/dabf5e78b1f8458a87c65d002ab9b564 [2020-07-29 01:34:13,404 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:34:13,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:34:13,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:34:13,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:34:13,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:34:13,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:34:13" (1/1) ... [2020-07-29 01:34:13,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@510d17aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:34:13, skipping insertion in model container [2020-07-29 01:34:13,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:34:13" (1/1) ... [2020-07-29 01:34:13,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:34:13,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:34:13,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:34:13,880 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:34:14,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:34:14,083 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:34:14,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:34:14 WrapperNode [2020-07-29 01:34:14,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:34:14,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:34:14,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:34:14,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:34:14,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:34:14" (1/1) ... [2020-07-29 01:34:14,113 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:34:14" (1/1) ... [2020-07-29 01:34:14,136 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:34:14,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:34:14,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:34:14,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:34:14,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:34:14" (1/1) ... [2020-07-29 01:34:14,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:34:14" (1/1) ... [2020-07-29 01:34:14,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:34:14" (1/1) ... [2020-07-29 01:34:14,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:34:14" (1/1) ... [2020-07-29 01:34:14,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:34:14" (1/1) ... [2020-07-29 01:34:14,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:34:14" (1/1) ... [2020-07-29 01:34:14,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:34:14" (1/1) ... [2020-07-29 01:34:14,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:34:14,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:34:14,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:34:14,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:34:14,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:34:14" (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 [2020-07-29 01:34:14,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-29 01:34:14,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-29 01:34:14,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 01:34:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-29 01:34:14,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:34:14,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:34:14,565 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:34:14,565 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-29 01:34:14,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:34:14 BoogieIcfgContainer [2020-07-29 01:34:14,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:34:14,570 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 01:34:14,570 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 01:34:14,574 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 01:34:14,575 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:34:14,575 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 01:34:13" (1/3) ... [2020-07-29 01:34:14,576 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54371188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:34:14, skipping insertion in model container [2020-07-29 01:34:14,576 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:34:14,576 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:34:14" (2/3) ... [2020-07-29 01:34:14,577 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54371188 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:34:14, skipping insertion in model container [2020-07-29 01:34:14,577 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:34:14,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:34:14" (3/3) ... [2020-07-29 01:34:14,579 INFO L371 chiAutomizerObserver]: Analyzing ICFG add_last-alloca-2.i [2020-07-29 01:34:14,633 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 01:34:14,635 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 01:34:14,636 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 01:34:14,636 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:34:14,636 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:34:14,636 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 01:34:14,636 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:34:14,636 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 01:34:14,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-07-29 01:34:14,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:34:14,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:34:14,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:34:14,694 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-29 01:34:14,695 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 01:34:14,695 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 01:34:14,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-07-29 01:34:14,703 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:34:14,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:34:14,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:34:14,704 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-29 01:34:14,704 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 01:34:14,715 INFO L794 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem6, main_#t~mem7, main_#t~post8.base, main_#t~post8.offset, main_#t~mem4, main_#t~mem5, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset, main_~a~0.base, main_~a~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 11#L550true assume !(main_~length~0 < 1); 4#L550-2true call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 8#L552true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~a~0.base, main_~a~0.offset := main_~arr~0.base, main_~arr~0.offset; 9#L554-3true [2020-07-29 01:34:14,716 INFO L796 eck$LassoCheckResult]: Loop: 9#L554-3true call main_#t~mem4 := read~int(main_~a~0.base, main_~a~0.offset, 4);call main_#t~mem5 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~length~0 - 4, 4); 5#L554-1true assume !!(main_#t~mem4 != main_#t~mem5);havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem6 := read~int(main_~a~0.base, main_~a~0.offset, 4);call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~length~0 - 4, 4);call write~int(main_#t~mem6 + main_#t~mem7, main_~a~0.base, main_~a~0.offset, 4);havoc main_#t~mem7;havoc main_#t~mem6;main_#t~post8.base, main_#t~post8.offset := main_~a~0.base, main_~a~0.offset;main_~a~0.base, main_~a~0.offset := main_#t~post8.base, 4 + main_#t~post8.offset;havoc main_#t~post8.base, main_#t~post8.offset; 9#L554-3true [2020-07-29 01:34:14,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:34:14,723 INFO L82 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2020-07-29 01:34:14,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:34:14,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056007169] [2020-07-29 01:34:14,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:34:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:34:14,853 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:34:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:34:14,867 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:34:14,885 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:34:14,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:34:14,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1574, now seen corresponding path program 1 times [2020-07-29 01:34:14,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:34:14,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527099885] [2020-07-29 01:34:14,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:34:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:34:14,902 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:34:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:34:14,913 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:34:14,917 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:34:14,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:34:14,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815470, now seen corresponding path program 1 times [2020-07-29 01:34:14,919 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:34:14,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582934643] [2020-07-29 01:34:14,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:34:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:34:14,954 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:34:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:34:14,979 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:34:14,985 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:34:15,341 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:34:15,342 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:34:15,343 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:34:15,343 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:34:15,343 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:34:15,344 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:34:15,344 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:34:15,344 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:34:15,345 INFO L133 ssoRankerPreferences]: Filename of dumped script: add_last-alloca-2.i_Iteration1_Lasso [2020-07-29 01:34:15,345 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:34:15,345 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:34:15,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:34:15,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:34:15,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:34:15,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:34:15,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:34:15,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:34:15,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:34:15,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:34:15,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:34:15,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:34:15,686 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2020-07-29 01:34:15,838 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-07-29 01:34:15,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:34:15,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:34:15,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:34:15,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:34:15,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:34:15,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 01:34:16,652 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:34:16,658 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-07-29 01:34:16,674 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 [2020-07-29 01:34:16,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:34:16,679 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:34:16,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:34:16,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:34:16,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:34:16,684 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:34:16,684 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:34:16,688 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:34:16,748 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 [2020-07-29 01:34:16,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:34:16,752 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:34:16,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:34:16,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:34:16,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:34:16,755 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:34:16,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:34:16,761 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:34:16,806 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 [2020-07-29 01:34:16,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:34:16,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:34:16,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:34:16,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:34:16,821 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:34:16,821 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:34:16,834 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 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:34:16,873 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 [2020-07-29 01:34:16,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:34:16,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:34:16,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:34:16,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:34:16,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:34:16,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:34:16,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:34:16,880 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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:34:16,918 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 [2020-07-29 01:34:16,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:34:16,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:34:16,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:34:16,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:34:16,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:34:16,922 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:34:16,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:34:16,924 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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:34:16,954 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 [2020-07-29 01:34:16,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:34:16,956 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:34:16,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:34:16,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:34:16,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:34:16,959 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:34:16,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:34:16,961 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 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 [2020-07-29 01:34:16,990 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 [2020-07-29 01:34:16,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:34:16,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:34:16,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:34:16,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:34:16,995 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:34:16,996 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:34:17,002 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:34:17,056 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 [2020-07-29 01:34:17,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:34:17,058 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:34:17,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:34:17,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:34:17,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:34:17,060 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:34:17,060 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:34:17,069 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 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:34:17,097 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 [2020-07-29 01:34:17,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:34:17,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:34:17,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:34:17,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:34:17,102 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:34:17,102 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:34:17,106 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 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:34:17,139 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 [2020-07-29 01:34:17,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:34:17,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:34:17,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:34:17,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:34:17,151 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:34:17,151 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:34:17,160 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 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:34:17,207 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 [2020-07-29 01:34:17,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:34:17,210 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:34:17,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:34:17,211 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-07-29 01:34:17,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:34:17,215 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-29 01:34:17,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:34:17,219 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 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:34:17,258 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 [2020-07-29 01:34:17,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:34:17,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:34:17,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:34:17,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:34:17,265 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:34:17,266 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:34:17,275 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 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:34:17,298 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 [2020-07-29 01:34:17,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:34:17,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:34:17,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:34:17,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:34:17,316 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:34:17,317 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:34:17,335 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:34:17,491 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2020-07-29 01:34:17,491 INFO L444 ModelExtractionUtils]: 11 out of 25 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:34:17,498 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:34:17,501 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-07-29 01:34:17,502 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:34:17,503 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0.offset, v_rep(select #length ULTIMATE.start_main_~arr~0.base)_1) = -1*ULTIMATE.start_main_~a~0.offset + 2*v_rep(select #length ULTIMATE.start_main_~arr~0.base)_1 Supporting invariants [] [2020-07-29 01:34:17,575 INFO L297 tatePredicateManager]: 4 out of 6 supporting invariants were superfluous and have been removed [2020-07-29 01:34:17,592 INFO L393 LassoCheck]: Loop: "call main_#t~mem4 := read~int(main_~a~0.base, main_~a~0.offset, 4);call main_#t~mem5 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~length~0 - 4, 4);" "assume !!(main_#t~mem4 != main_#t~mem5);havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem6 := read~int(main_~a~0.base, main_~a~0.offset, 4);call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~length~0 - 4, 4);call write~int(main_#t~mem6 + main_#t~mem7, main_~a~0.base, main_~a~0.offset, 4);havoc main_#t~mem7;havoc main_#t~mem6;main_#t~post8.base, main_#t~post8.offset := main_~a~0.base, main_~a~0.offset;main_~a~0.base, main_~a~0.offset := main_#t~post8.base, 4 + main_#t~post8.offset;havoc main_#t~post8.base, main_#t~post8.offset;" [2020-07-29 01:34:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:34:17,610 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-29 01:34:17,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:34:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:34:17,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-29 01:34:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:34:17,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:34:17,728 INFO L280 TraceCheckUtils]: 0: Hoare triple {21#unseeded} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {21#unseeded} is VALID [2020-07-29 01:34:17,730 INFO L280 TraceCheckUtils]: 1: Hoare triple {21#unseeded} havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem6, main_#t~mem7, main_#t~post8.base, main_#t~post8.offset, main_#t~mem4, main_#t~mem5, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset, main_~a~0.base, main_~a~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; {21#unseeded} is VALID [2020-07-29 01:34:17,731 INFO L280 TraceCheckUtils]: 2: Hoare triple {21#unseeded} assume !(main_~length~0 < 1); {21#unseeded} is VALID [2020-07-29 01:34:17,733 INFO L280 TraceCheckUtils]: 3: Hoare triple {21#unseeded} call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; {84#(and (= ULTIMATE.start_main_~arr~0.base |ULTIMATE.start_main_#t~malloc3.base|) unseeded)} is VALID [2020-07-29 01:34:17,734 INFO L280 TraceCheckUtils]: 4: Hoare triple {84#(and (= ULTIMATE.start_main_~arr~0.base |ULTIMATE.start_main_#t~malloc3.base|) unseeded)} assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~a~0.base, main_~a~0.offset := main_~arr~0.base, main_~arr~0.offset; {66#(and (= |ULTIMATE.start_main_#t~malloc3.base| ULTIMATE.start_main_~a~0.base) (= ULTIMATE.start_main_~arr~0.base |ULTIMATE.start_main_#t~malloc3.base|) unseeded)} is VALID [2020-07-29 01:34:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:34:17,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-29 01:34:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:34:17,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:34:17,806 INFO L280 TraceCheckUtils]: 0: Hoare triple {67#(and (>= oldRank0 (+ (* (- 1) ULTIMATE.start_main_~a~0.offset) (* 2 (select |#length| ULTIMATE.start_main_~arr~0.base)))) (= |ULTIMATE.start_main_#t~malloc3.base| ULTIMATE.start_main_~a~0.base) (= ULTIMATE.start_main_~arr~0.base |ULTIMATE.start_main_#t~malloc3.base|))} call main_#t~mem4 := read~int(main_~a~0.base, main_~a~0.offset, 4);call main_#t~mem5 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~length~0 - 4, 4); {88#(and (<= (+ ULTIMATE.start_main_~a~0.offset 4) (select |#length| ULTIMATE.start_main_~a~0.base)) (<= 0 ULTIMATE.start_main_~a~0.offset) (= |ULTIMATE.start_main_#t~malloc3.base| ULTIMATE.start_main_~a~0.base) (<= (* 2 (select |#length| ULTIMATE.start_main_~arr~0.base)) (+ ULTIMATE.start_main_~a~0.offset oldRank0)) (= ULTIMATE.start_main_~arr~0.base |ULTIMATE.start_main_#t~malloc3.base|))} is VALID [2020-07-29 01:34:17,811 INFO L280 TraceCheckUtils]: 1: Hoare triple {88#(and (<= (+ ULTIMATE.start_main_~a~0.offset 4) (select |#length| ULTIMATE.start_main_~a~0.base)) (<= 0 ULTIMATE.start_main_~a~0.offset) (= |ULTIMATE.start_main_#t~malloc3.base| ULTIMATE.start_main_~a~0.base) (<= (* 2 (select |#length| ULTIMATE.start_main_~arr~0.base)) (+ ULTIMATE.start_main_~a~0.offset oldRank0)) (= ULTIMATE.start_main_~arr~0.base |ULTIMATE.start_main_#t~malloc3.base|))} assume !!(main_#t~mem4 != main_#t~mem5);havoc main_#t~mem5;havoc main_#t~mem4;call main_#t~mem6 := read~int(main_~a~0.base, main_~a~0.offset, 4);call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~length~0 - 4, 4);call write~int(main_#t~mem6 + main_#t~mem7, main_~a~0.base, main_~a~0.offset, 4);havoc main_#t~mem7;havoc main_#t~mem6;main_#t~post8.base, main_#t~post8.offset := main_~a~0.base, main_~a~0.offset;main_~a~0.base, main_~a~0.offset := main_#t~post8.base, 4 + main_#t~post8.offset;havoc main_#t~post8.base, main_#t~post8.offset; {69#(and (or (and (> oldRank0 (+ (* (- 1) ULTIMATE.start_main_~a~0.offset) (* 2 (select |#length| ULTIMATE.start_main_~arr~0.base)))) (>= oldRank0 0)) unseeded) (= |ULTIMATE.start_main_#t~malloc3.base| ULTIMATE.start_main_~a~0.base) (= ULTIMATE.start_main_~arr~0.base |ULTIMATE.start_main_#t~malloc3.base|))} is VALID [2020-07-29 01:34:17,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:34:17,824 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-29 01:34:17,846 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:34:17,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 5 letters. Loop has 2 letters. [2020-07-29 01:34:17,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:17,859 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-07-29 01:34:17,861 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 4 states. [2020-07-29 01:34:17,996 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 4 states. Result 21 states and 24 transitions. Complement of second has 7 states. [2020-07-29 01:34:17,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-29 01:34:17,997 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:34:17,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-07-29 01:34:17,999 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:34:17,999 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:34:17,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:34:18,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-29 01:34:18,007 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 01:34:18,007 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:34:18,008 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:34:18,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 24 transitions. [2020-07-29 01:34:18,009 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:34:18,010 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:34:18,011 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 11 states. [2020-07-29 01:34:18,013 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 01:34:18,014 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:34:18,014 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 4 states. [2020-07-29 01:34:18,016 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 01:34:18,017 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:34:18,017 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 21 states and 24 transitions. cyclomatic complexity: 4 [2020-07-29 01:34:18,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 24 transitions. cyclomatic complexity: 4 [2020-07-29 01:34:18,018 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:34:18,018 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2020-07-29 01:34:18,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 5 letters. Loop has 2 letters. [2020-07-29 01:34:18,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,019 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 5 letters. Loop has 2 letters. [2020-07-29 01:34:18,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,019 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 24 transitions. cyclomatic complexity: 4 Stem has 5 letters. Loop has 2 letters. [2020-07-29 01:34:18,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,020 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 2 letters. Loop has 2 letters. [2020-07-29 01:34:18,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,020 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 2 letters. Loop has 2 letters. [2020-07-29 01:34:18,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 24 transitions. cyclomatic complexity: 4 Stem has 2 letters. Loop has 2 letters. [2020-07-29 01:34:18,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 21 letters. Loop has 21 letters. [2020-07-29 01:34:18,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 21 letters. Loop has 21 letters. [2020-07-29 01:34:18,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 24 transitions. cyclomatic complexity: 4 Stem has 21 letters. Loop has 21 letters. [2020-07-29 01:34:18,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:34:18,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:34:18,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 24 transitions. cyclomatic complexity: 4 Stem has 11 letters. Loop has 11 letters. [2020-07-29 01:34:18,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 5 letters. Loop has 5 letters. [2020-07-29 01:34:18,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 5 letters. Loop has 5 letters. [2020-07-29 01:34:18,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,025 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 24 transitions. cyclomatic complexity: 4 Stem has 5 letters. Loop has 5 letters. [2020-07-29 01:34:18,025 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,025 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 6 letters. Loop has 2 letters. [2020-07-29 01:34:18,025 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,025 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 6 letters. Loop has 2 letters. [2020-07-29 01:34:18,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 24 transitions. cyclomatic complexity: 4 Stem has 6 letters. Loop has 2 letters. [2020-07-29 01:34:18,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 5 letters. Loop has 2 letters. [2020-07-29 01:34:18,027 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 5 letters. Loop has 2 letters. [2020-07-29 01:34:18,027 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 24 transitions. cyclomatic complexity: 4 Stem has 5 letters. Loop has 2 letters. [2020-07-29 01:34:18,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:34:18,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:34:18,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 24 transitions. cyclomatic complexity: 4 Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:34:18,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states. Stem has 2 letters. Loop has 2 letters. [2020-07-29 01:34:18,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 2 letters. Loop has 2 letters. [2020-07-29 01:34:18,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 21 states and 24 transitions. cyclomatic complexity: 4 Stem has 2 letters. Loop has 2 letters. [2020-07-29 01:34:18,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,030 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:34:18,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-29 01:34:18,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2020-07-29 01:34:18,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-29 01:34:18,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 7 letters. Loop has 2 letters. [2020-07-29 01:34:18,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 5 letters. Loop has 4 letters. [2020-07-29 01:34:18,036 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:34:18,037 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 24 transitions. cyclomatic complexity: 4 [2020-07-29 01:34:18,039 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:34:18,042 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2020-07-29 01:34:18,044 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 01:34:18,044 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 01:34:18,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 01:34:18,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:34:18,045 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:34:18,045 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:34:18,045 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:34:18,046 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 01:34:18,046 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 01:34:18,046 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:34:18,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:34:18,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 01:34:18 BoogieIcfgContainer [2020-07-29 01:34:18,053 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 01:34:18,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:34:18,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:34:18,054 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:34:18,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:34:14" (3/4) ... [2020-07-29 01:34:18,059 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 01:34:18,059 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:34:18,061 INFO L168 Benchmark]: Toolchain (without parser) took 4655.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 216.5 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -141.9 MB). Peak memory consumption was 74.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:34:18,062 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:34:18,063 INFO L168 Benchmark]: CACSL2BoogieTranslator took 675.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2020-07-29 01:34:18,063 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:34:18,064 INFO L168 Benchmark]: Boogie Preprocessor took 29.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:34:18,065 INFO L168 Benchmark]: RCFGBuilder took 402.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:34:18,066 INFO L168 Benchmark]: BuchiAutomizer took 3483.61 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -2.6 MB). Peak memory consumption was 70.3 MB. Max. memory is 11.5 GB. [2020-07-29 01:34:18,066 INFO L168 Benchmark]: Witness Printer took 5.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:34:18,070 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 675.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 402.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3483.61 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -2.6 MB). Peak memory consumption was 70.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * 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 -1 * a + 2 * unknown-#length-unknown[arr] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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: 8 SDtfs, 8 SDslu, 6 SDs, 0 SdLazy, 10 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital145 mio100 ax112 hnf99 lsp85 ukn83 mio100 lsp54 div100 bol100 ite100 ukn100 eq173 hnf90 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 37ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...