./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/b.18-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/b.18-alloca.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 abee338f12eaa8176313da7ed567414f687b7fa7 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:46:14,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:46:14,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:46:14,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:46:14,752 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:46:14,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:46:14,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:46:14,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:46:14,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:46:14,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:46:14,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:46:14,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:46:14,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:46:14,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:46:14,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:46:14,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:46:14,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:46:14,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:46:14,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:46:14,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:46:14,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:46:14,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:46:14,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:46:14,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:46:14,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:46:14,781 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:46:14,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:46:14,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:46:14,783 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:46:14,784 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:46:14,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:46:14,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:46:14,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:46:14,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:46:14,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:46:14,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:46:14,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:46:14,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:46:14,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:46:14,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:46:14,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:46:14,793 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-19 18:46:14,847 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:46:14,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:46:14,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:46:14,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:46:14,853 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:46:14,853 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 18:46:14,853 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 18:46:14,853 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 18:46:14,854 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 18:46:14,854 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 18:46:14,854 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 18:46:14,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:46:14,854 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:46:14,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:46:14,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:46:14,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 18:46:14,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 18:46:14,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 18:46:14,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:46:14,857 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 18:46:14,857 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:46:14,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 18:46:14,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:46:14,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:46:14,858 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 18:46:14,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:46:14,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:46:14,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:46:14,859 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 18:46:14,861 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 18:46:14,861 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 -> abee338f12eaa8176313da7ed567414f687b7fa7 [2020-10-19 18:46:15,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:46:15,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:46:15,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:46:15,239 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:46:15,241 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:46:15,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/b.18-alloca.i [2020-10-19 18:46:15,318 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/260a26402/16921790d24a404bbf6994f4bb5fb09b/FLAG5cc33cc42 [2020-10-19 18:46:15,877 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:46:15,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/b.18-alloca.i [2020-10-19 18:46:15,893 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/260a26402/16921790d24a404bbf6994f4bb5fb09b/FLAG5cc33cc42 [2020-10-19 18:46:16,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/260a26402/16921790d24a404bbf6994f4bb5fb09b [2020-10-19 18:46:16,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:46:16,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:46:16,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:46:16,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:46:16,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:46:16,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:46:16" (1/1) ... [2020-10-19 18:46:16,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52c78c33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:46:16, skipping insertion in model container [2020-10-19 18:46:16,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:46:16" (1/1) ... [2020-10-19 18:46:16,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:46:16,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:46:16,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:46:16,727 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:46:16,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:46:16,826 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:46:16,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:46:16 WrapperNode [2020-10-19 18:46:16,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:46:16,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:46:16,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:46:16,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:46:16,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:46:16" (1/1) ... [2020-10-19 18:46:16,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:46:16" (1/1) ... [2020-10-19 18:46:16,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:46:16,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:46:16,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:46:16,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:46:16,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:46:16" (1/1) ... [2020-10-19 18:46:16,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:46:16" (1/1) ... [2020-10-19 18:46:16,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:46:16" (1/1) ... [2020-10-19 18:46:16,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:46:16" (1/1) ... [2020-10-19 18:46:16,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:46:16" (1/1) ... [2020-10-19 18:46:16,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:46:16" (1/1) ... [2020-10-19 18:46:16,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:46:16" (1/1) ... [2020-10-19 18:46:16,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:46:16,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:46:16,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:46:16,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:46:16,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:46:16" (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 [2020-10-19 18:46:16,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:46:16,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:46:16,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:46:16,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:46:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:46:16,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:46:17,402 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:46:17,402 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 18:46:17,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:46:17 BoogieIcfgContainer [2020-10-19 18:46:17,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:46:17,405 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 18:46:17,405 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 18:46:17,409 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 18:46:17,410 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:46:17,410 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 06:46:16" (1/3) ... [2020-10-19 18:46:17,411 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47ad5248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:46:17, skipping insertion in model container [2020-10-19 18:46:17,412 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:46:17,412 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:46:16" (2/3) ... [2020-10-19 18:46:17,412 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47ad5248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:46:17, skipping insertion in model container [2020-10-19 18:46:17,412 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:46:17,413 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:46:17" (3/3) ... [2020-10-19 18:46:17,415 INFO L373 chiAutomizerObserver]: Analyzing ICFG b.18-alloca.i [2020-10-19 18:46:17,466 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 18:46:17,466 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 18:46:17,466 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 18:46:17,466 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:46:17,468 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:46:17,468 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 18:46:17,469 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:46:17,469 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 18:46:17,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-10-19 18:46:17,504 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-10-19 18:46:17,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:46:17,505 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:46:17,512 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 18:46:17,512 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 18:46:17,513 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 18:46:17,513 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-10-19 18:46:17,515 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-10-19 18:46:17,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:46:17,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:46:17,515 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 18:46:17,516 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-10-19 18:46:17,522 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 11#L-1true havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 8#L559-4true [2020-10-19 18:46:17,523 INFO L796 eck$LassoCheckResult]: Loop: 8#L559-4true call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 14#L553-1true assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 18#L553-3true assume !!test_fun_#t~short6;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;havoc test_fun_#t~mem4;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 9#L554true assume !(test_fun_#t~mem7 > test_fun_#t~mem8);havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 6#L559-3true assume !true; 8#L559-4true [2020-10-19 18:46:17,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:17,528 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-10-19 18:46:17,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:17,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343073880] [2020-10-19 18:46:17,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:17,663 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:17,686 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:17,719 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:46:17,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:17,722 INFO L82 PathProgramCache]: Analyzing trace with hash 35410170, now seen corresponding path program 1 times [2020-10-19 18:46:17,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:17,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207854344] [2020-10-19 18:46:17,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:46:17,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:46:17,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207854344] [2020-10-19 18:46:17,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:46:17,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-19 18:46:17,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830612164] [2020-10-19 18:46:17,778 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-19 18:46:17,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:46:17,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-19 18:46:17,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-19 18:46:17,797 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2020-10-19 18:46:17,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:46:17,805 INFO L93 Difference]: Finished difference Result 17 states and 23 transitions. [2020-10-19 18:46:17,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-19 18:46:17,807 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 23 transitions. [2020-10-19 18:46:17,808 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-10-19 18:46:17,811 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 10 states and 14 transitions. [2020-10-19 18:46:17,813 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-10-19 18:46:17,813 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-10-19 18:46:17,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2020-10-19 18:46:17,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:46:17,814 INFO L691 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2020-10-19 18:46:17,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2020-10-19 18:46:17,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-10-19 18:46:17,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-19 18:46:17,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2020-10-19 18:46:17,837 INFO L714 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2020-10-19 18:46:17,838 INFO L594 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2020-10-19 18:46:17,838 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 18:46:17,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 14 transitions. [2020-10-19 18:46:17,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-10-19 18:46:17,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:46:17,839 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:46:17,839 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 18:46:17,840 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-19 18:46:17,840 INFO L794 eck$LassoCheckResult]: Stem: 46#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 42#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 43#L559-4 [2020-10-19 18:46:17,840 INFO L796 eck$LassoCheckResult]: Loop: 43#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 49#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 50#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;havoc test_fun_#t~mem4;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 51#L554 assume !(test_fun_#t~mem7 > test_fun_#t~mem8);havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 45#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 44#L559-1 assume !(test_fun_#t~mem11 > 0);havoc test_fun_#t~mem11; 43#L559-4 [2020-10-19 18:46:17,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:17,841 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2020-10-19 18:46:17,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:17,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613335347] [2020-10-19 18:46:17,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:17,860 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:17,875 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:17,884 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:46:17,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:17,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1097715097, now seen corresponding path program 1 times [2020-10-19 18:46:17,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:17,889 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354215142] [2020-10-19 18:46:17,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:46:17,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:46:17,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354215142] [2020-10-19 18:46:17,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:46:17,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:46:17,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507868448] [2020-10-19 18:46:17,973 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-19 18:46:17,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:46:17,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:46:17,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:46:17,974 INFO L87 Difference]: Start difference. First operand 10 states and 14 transitions. cyclomatic complexity: 5 Second operand 5 states. [2020-10-19 18:46:18,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:46:18,040 INFO L93 Difference]: Finished difference Result 17 states and 23 transitions. [2020-10-19 18:46:18,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:46:18,041 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 23 transitions. [2020-10-19 18:46:18,043 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2020-10-19 18:46:18,043 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 23 transitions. [2020-10-19 18:46:18,044 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-10-19 18:46:18,044 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-10-19 18:46:18,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2020-10-19 18:46:18,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:46:18,044 INFO L691 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2020-10-19 18:46:18,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2020-10-19 18:46:18,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2020-10-19 18:46:18,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-19 18:46:18,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2020-10-19 18:46:18,047 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-10-19 18:46:18,047 INFO L594 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-10-19 18:46:18,048 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 18:46:18,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2020-10-19 18:46:18,049 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-10-19 18:46:18,049 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:46:18,049 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:46:18,049 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 18:46:18,050 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-19 18:46:18,050 INFO L794 eck$LassoCheckResult]: Stem: 83#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 79#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 80#L559-4 [2020-10-19 18:46:18,050 INFO L796 eck$LassoCheckResult]: Loop: 80#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 86#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 87#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;havoc test_fun_#t~mem4;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 89#L554 assume test_fun_#t~mem7 > test_fun_#t~mem8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 84#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 85#L555-1 assume !(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9; 80#L559-4 [2020-10-19 18:46:18,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:18,051 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2020-10-19 18:46:18,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:18,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456874052] [2020-10-19 18:46:18,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:18,066 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:18,079 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:18,083 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:46:18,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:18,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1097700202, now seen corresponding path program 1 times [2020-10-19 18:46:18,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:18,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585130133] [2020-10-19 18:46:18,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:46:18,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:46:18,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585130133] [2020-10-19 18:46:18,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:46:18,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:46:18,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990052224] [2020-10-19 18:46:18,134 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-19 18:46:18,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:46:18,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:46:18,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:46:18,135 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. cyclomatic complexity: 5 Second operand 5 states. [2020-10-19 18:46:18,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:46:18,194 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2020-10-19 18:46:18,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:46:18,196 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2020-10-19 18:46:18,197 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2020-10-19 18:46:18,197 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 19 transitions. [2020-10-19 18:46:18,198 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-10-19 18:46:18,198 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-10-19 18:46:18,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2020-10-19 18:46:18,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:46:18,199 INFO L691 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2020-10-19 18:46:18,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2020-10-19 18:46:18,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2020-10-19 18:46:18,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-19 18:46:18,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2020-10-19 18:46:18,202 INFO L714 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2020-10-19 18:46:18,202 INFO L594 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2020-10-19 18:46:18,202 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 18:46:18,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2020-10-19 18:46:18,203 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2020-10-19 18:46:18,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:46:18,204 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:46:18,204 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 18:46:18,204 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2020-10-19 18:46:18,205 INFO L794 eck$LassoCheckResult]: Stem: 120#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 116#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 117#L559-4 [2020-10-19 18:46:18,205 INFO L796 eck$LassoCheckResult]: Loop: 117#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 121#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 122#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;havoc test_fun_#t~mem4;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 126#L554 assume test_fun_#t~mem7 > test_fun_#t~mem8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 123#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 124#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 128#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 129#L555-1 assume !(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9; 117#L559-4 [2020-10-19 18:46:18,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:18,206 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2020-10-19 18:46:18,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:18,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755242079] [2020-10-19 18:46:18,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:18,220 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:18,232 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:18,237 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:46:18,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:18,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1672057937, now seen corresponding path program 1 times [2020-10-19 18:46:18,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:18,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943298026] [2020-10-19 18:46:18,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:46:18,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:46:18,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943298026] [2020-10-19 18:46:18,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295714078] [2020-10-19 18:46:18,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:46:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:46:18,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-19 18:46:18,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:46:18,420 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 18:46:18,647 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:46:18,648 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 63 [2020-10-19 18:46:18,655 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-10-19 18:46:18,660 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 18:46:18,665 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:46:18,722 INFO L625 ElimStorePlain]: treesize reduction 53, result has 47.0 percent of original size [2020-10-19 18:46:18,734 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2020-10-19 18:46:18,736 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:38, output treesize:47 [2020-10-19 18:46:20,042 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 18:46:20,092 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2020-10-19 18:46:20,094 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:46:20,103 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:46:20,104 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2020-10-19 18:46:20,107 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-19 18:46:20,129 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:46:20,134 INFO L545 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:46:20,135 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:61, output treesize:3 [2020-10-19 18:46:20,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:46:20,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:46:20,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-10-19 18:46:20,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989395411] [2020-10-19 18:46:20,140 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-10-19 18:46:20,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:46:20,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 18:46:20,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=65, Unknown=2, NotChecked=0, Total=90 [2020-10-19 18:46:20,145 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. cyclomatic complexity: 5 Second operand 10 states. [2020-10-19 18:46:21,253 WARN L193 SmtUtils]: Spent 903.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-10-19 18:46:33,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:46:33,633 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2020-10-19 18:46:33,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:46:33,635 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2020-10-19 18:46:33,636 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2020-10-19 18:46:33,637 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 20 transitions. [2020-10-19 18:46:33,637 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-10-19 18:46:33,637 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-10-19 18:46:33,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 20 transitions. [2020-10-19 18:46:33,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:46:33,638 INFO L691 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2020-10-19 18:46:33,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 20 transitions. [2020-10-19 18:46:33,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-19 18:46:33,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-19 18:46:33,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2020-10-19 18:46:33,644 INFO L714 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2020-10-19 18:46:33,644 INFO L594 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2020-10-19 18:46:33,644 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-10-19 18:46:33,644 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2020-10-19 18:46:33,645 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2020-10-19 18:46:33,645 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:46:33,645 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:46:33,646 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 18:46:33,646 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2020-10-19 18:46:33,646 INFO L794 eck$LassoCheckResult]: Stem: 194#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 190#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 191#L559-4 [2020-10-19 18:46:33,647 INFO L796 eck$LassoCheckResult]: Loop: 191#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 195#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 196#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;havoc test_fun_#t~mem4;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 200#L554 assume !(test_fun_#t~mem7 > test_fun_#t~mem8);havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 201#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 192#L559-1 assume !!(test_fun_#t~mem11 > 0);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem12; 193#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 199#L559-1 assume !(test_fun_#t~mem11 > 0);havoc test_fun_#t~mem11; 191#L559-4 [2020-10-19 18:46:33,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:33,647 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2020-10-19 18:46:33,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:33,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034919394] [2020-10-19 18:46:33,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:33,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:33,660 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:33,669 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:33,673 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:46:33,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:33,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1657743362, now seen corresponding path program 1 times [2020-10-19 18:46:33,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:33,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79976365] [2020-10-19 18:46:33,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:33,686 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:33,695 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:33,698 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:46:33,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:33,700 INFO L82 PathProgramCache]: Analyzing trace with hash -967181888, now seen corresponding path program 1 times [2020-10-19 18:46:33,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:33,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221461772] [2020-10-19 18:46:33,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:33,716 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:33,731 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:33,737 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:46:33,894 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2020-10-19 18:46:34,142 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2020-10-19 18:46:34,256 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:46:34,257 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:46:34,257 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:46:34,257 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:46:34,257 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:46:34,258 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:34,258 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:46:34,258 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:46:34,258 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18-alloca.i_Iteration5_Lasso [2020-10-19 18:46:34,258 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:46:34,258 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:46:34,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,472 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2020-10-19 18:46:34,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:34,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:35,136 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:46:35,145 INFO L489 LassoAnalysis]: Using template 'affine'. 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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:35,149 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 [2020-10-19 18:46:35,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:35,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:35,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:35,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:35,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:35,155 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:35,155 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:35,160 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:46:35,211 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 [2020-10-19 18:46:35,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:35,213 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:35,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:35,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:35,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:35,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:35,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:35,218 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 [2020-10-19 18:46:35,247 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 [2020-10-19 18:46:35,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:35,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:35,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:35,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:35,262 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:46:35,262 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:46:35,275 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:46:35,327 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 [2020-10-19 18:46:35,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:35,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:35,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:35,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:35,334 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:46:35,335 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:35,342 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) [2020-10-19 18:46:35,394 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 [2020-10-19 18:46:35,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:35,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:35,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:35,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:35,401 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:46:35,401 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:35,407 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) [2020-10-19 18:46:35,451 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 [2020-10-19 18:46:35,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:35,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:35,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:35,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:35,460 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:46:35,461 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:35,473 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:46:35,498 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-10-19 18:46:35,498 INFO L444 ModelExtractionUtils]: 9 out of 28 variables were initially zero. Simplification set additionally 17 variables to zero. 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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:35,504 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:46:35,506 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 18:46:35,507 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:46:35,507 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_1 Supporting invariants [] [2020-10-19 18:46:35,648 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-10-19 18:46:35,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-19 18:46:35,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:35,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:46:35,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:46:35,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:46:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:46:35,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:46:35,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:46:35,707 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 18:46:35,715 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2020-10-19 18:46:35,716 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:46:35,733 INFO L625 ElimStorePlain]: treesize reduction 1, result has 94.7 percent of original size [2020-10-19 18:46:35,736 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-10-19 18:46:35,737 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-19 18:46:35,743 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:46:35,743 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-19 18:46:35,744 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:6 [2020-10-19 18:46:35,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 18:46:35,783 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-10-19 18:46:35,784 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 5 Second operand 6 states. [2020-10-19 18:46:35,951 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 5. Second operand 6 states. Result 40 states and 53 transitions. Complement of second has 10 states. [2020-10-19 18:46:35,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-10-19 18:46:35,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-19 18:46:35,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2020-10-19 18:46:35,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 2 letters. Loop has 8 letters. [2020-10-19 18:46:35,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:46:35,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 10 letters. Loop has 8 letters. [2020-10-19 18:46:35,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:46:35,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 2 letters. Loop has 16 letters. [2020-10-19 18:46:35,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:46:35,959 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 53 transitions. [2020-10-19 18:46:35,962 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2020-10-19 18:46:35,966 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 38 states and 51 transitions. [2020-10-19 18:46:35,968 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-10-19 18:46:35,969 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-10-19 18:46:35,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 51 transitions. [2020-10-19 18:46:35,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:46:35,970 INFO L691 BuchiCegarLoop]: Abstraction has 38 states and 51 transitions. [2020-10-19 18:46:35,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 51 transitions. [2020-10-19 18:46:35,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 30. [2020-10-19 18:46:35,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-19 18:46:35,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2020-10-19 18:46:35,974 INFO L714 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2020-10-19 18:46:35,974 INFO L594 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2020-10-19 18:46:35,975 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-10-19 18:46:35,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2020-10-19 18:46:35,976 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2020-10-19 18:46:35,976 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:46:35,976 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:46:35,976 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-19 18:46:35,977 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 1, 1, 1, 1, 1] [2020-10-19 18:46:35,977 INFO L794 eck$LassoCheckResult]: Stem: 362#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 354#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 355#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 367#L553-1 [2020-10-19 18:46:35,977 INFO L796 eck$LassoCheckResult]: Loop: 367#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 368#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;havoc test_fun_#t~mem4;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 371#L554 assume test_fun_#t~mem7 > test_fun_#t~mem8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 363#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 364#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 373#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 380#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 379#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 378#L555-1 assume !(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9; 357#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 367#L553-1 [2020-10-19 18:46:35,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:35,978 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2020-10-19 18:46:35,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:35,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829782691] [2020-10-19 18:46:35,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:35,988 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:35,996 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:35,999 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:46:36,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:36,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1479493138, now seen corresponding path program 2 times [2020-10-19 18:46:36,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:36,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640330396] [2020-10-19 18:46:36,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:36,011 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:36,022 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:36,025 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:46:36,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:36,026 INFO L82 PathProgramCache]: Analyzing trace with hash 376307409, now seen corresponding path program 1 times [2020-10-19 18:46:36,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:36,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005917439] [2020-10-19 18:46:36,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:36,042 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:36,055 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:36,060 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:46:36,254 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2020-10-19 18:46:36,515 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2020-10-19 18:46:36,611 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:46:36,611 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:46:36,611 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:46:36,611 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:46:36,611 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:46:36,612 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:36,612 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:46:36,612 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:46:36,612 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18-alloca.i_Iteration6_Lasso [2020-10-19 18:46:36,612 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:46:36,612 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:46:36,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:36,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:36,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:36,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:36,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:36,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:36,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:36,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:36,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:36,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:36,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:36,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:36,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:36,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:36,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:36,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:36,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:36,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:36,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:36,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:36,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:37,268 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-10-19 18:46:37,385 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-10-19 18:46:37,601 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2020-10-19 18:46:37,990 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-10-19 18:46:38,122 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:46:38,123 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2020-10-19 18:46:38,128 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 [2020-10-19 18:46:38,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,130 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:38,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:38,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,132 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:38,132 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:38,133 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 [2020-10-19 18:46:38,157 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 [2020-10-19 18:46:38,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:38,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:38,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,160 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:38,160 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:38,161 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 [2020-10-19 18:46:38,186 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 [2020-10-19 18:46:38,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:38,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:38,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:38,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:38,193 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 [2020-10-19 18:46:38,216 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 [2020-10-19 18:46:38,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:38,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,220 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:46:38,220 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:46:38,224 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 [2020-10-19 18:46:38,252 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 [2020-10-19 18:46:38,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:38,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,259 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:46:38,259 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:46:38,263 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 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:38,294 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 [2020-10-19 18:46:38,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,296 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:38,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:38,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,296 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:38,296 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:38,297 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 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:38,323 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 [2020-10-19 18:46:38,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,324 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:38,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:38,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,325 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:38,325 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:38,326 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 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:38,349 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 [2020-10-19 18:46:38,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,350 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:38,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:38,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,352 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:38,352 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:38,354 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 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:38,378 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 [2020-10-19 18:46:38,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:38,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:38,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,380 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:38,380 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:38,382 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:46:38,424 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 [2020-10-19 18:46:38,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,426 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:38,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:38,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,427 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:38,427 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:38,429 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 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:38,452 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 [2020-10-19 18:46:38,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:38,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,458 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:46:38,458 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:46:38,469 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:46:38,504 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 Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:38,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:38,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:38,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:38,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:38,507 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 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:38,533 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 [2020-10-19 18:46:38,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,534 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:38,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:38,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,535 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:38,535 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:38,536 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 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:38,560 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 [2020-10-19 18:46:38,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:38,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:38,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,562 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:38,563 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:38,564 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 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:38,586 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 [2020-10-19 18:46:38,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:38,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,590 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:46:38,590 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:46:38,594 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:46:38,617 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 Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:38,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:38,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:38,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,620 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:38,620 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:38,622 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 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:38,646 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 [2020-10-19 18:46:38,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:38,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:38,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:38,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:38,654 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 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:38,675 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 [2020-10-19 18:46:38,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,677 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:38,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:38,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,678 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:38,678 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:38,679 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 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:38,703 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 [2020-10-19 18:46:38,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,705 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:38,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:38,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,705 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:38,706 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:38,707 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 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:38,730 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 [2020-10-19 18:46:38,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:38,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,733 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:46:38,733 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:46:38,736 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 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:38,760 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 [2020-10-19 18:46:38,762 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:38,762 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-19 18:46:38,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:38,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:38,773 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-19 18:46:38,773 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:46:38,792 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:46:38,823 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-10-19 18:46:38,823 INFO L444 ModelExtractionUtils]: 23 out of 34 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:46:38,828 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:38,830 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 18:46:38,830 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:46:38,830 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_2 Supporting invariants [] [2020-10-19 18:46:38,877 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-10-19 18:46:38,879 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-19 18:46:38,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:46:38,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:46:38,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:46:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:46:38,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-19 18:46:38,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:46:38,921 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 18:46:38,958 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:46:38,958 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 25 [2020-10-19 18:46:38,962 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-19 18:46:38,964 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-10-19 18:46:38,966 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2020-10-19 18:46:38,991 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:46:38,993 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2020-10-19 18:46:38,994 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:21 [2020-10-19 18:46:39,062 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-19 18:46:39,062 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2020-10-19 18:46:39,062 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 12 Second operand 7 states. [2020-10-19 18:46:39,219 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 12. Second operand 7 states. Result 59 states and 83 transitions. Complement of second has 12 states. [2020-10-19 18:46:39,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2020-10-19 18:46:39,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-19 18:46:39,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 22 transitions. [2020-10-19 18:46:39,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 3 letters. Loop has 10 letters. [2020-10-19 18:46:39,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:46:39,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 13 letters. Loop has 10 letters. [2020-10-19 18:46:39,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:46:39,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 22 transitions. Stem has 3 letters. Loop has 20 letters. [2020-10-19 18:46:39,223 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:46:39,223 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 83 transitions. [2020-10-19 18:46:39,226 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 18:46:39,227 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 50 states and 70 transitions. [2020-10-19 18:46:39,228 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-10-19 18:46:39,228 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-10-19 18:46:39,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 70 transitions. [2020-10-19 18:46:39,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:46:39,228 INFO L691 BuchiCegarLoop]: Abstraction has 50 states and 70 transitions. [2020-10-19 18:46:39,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 70 transitions. [2020-10-19 18:46:39,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2020-10-19 18:46:39,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-19 18:46:39,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 69 transitions. [2020-10-19 18:46:39,234 INFO L714 BuchiCegarLoop]: Abstraction has 49 states and 69 transitions. [2020-10-19 18:46:39,234 INFO L594 BuchiCegarLoop]: Abstraction has 49 states and 69 transitions. [2020-10-19 18:46:39,234 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-10-19 18:46:39,235 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 69 transitions. [2020-10-19 18:46:39,236 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 18:46:39,236 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:46:39,236 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:46:39,237 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:46:39,237 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:46:39,237 INFO L794 eck$LassoCheckResult]: Stem: 573#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 565#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 566#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 578#L553-1 assume !test_fun_#t~short6; 579#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;havoc test_fun_#t~mem4;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 588#L554 assume test_fun_#t~mem7 > test_fun_#t~mem8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 589#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 609#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 608#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 575#L555-1 [2020-10-19 18:46:39,237 INFO L796 eck$LassoCheckResult]: Loop: 575#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 574#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 575#L555-1 [2020-10-19 18:46:39,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:39,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1272523114, now seen corresponding path program 1 times [2020-10-19 18:46:39,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:39,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079431132] [2020-10-19 18:46:39,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:46:39,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-19 18:46:39,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079431132] [2020-10-19 18:46:39,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:46:39,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:46:39,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114768631] [2020-10-19 18:46:39,261 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 18:46:39,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:39,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1948, now seen corresponding path program 1 times [2020-10-19 18:46:39,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:39,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546494959] [2020-10-19 18:46:39,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:39,266 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:39,269 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:39,270 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:46:39,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:46:39,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:46:39,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:46:39,296 INFO L87 Difference]: Start difference. First operand 49 states and 69 transitions. cyclomatic complexity: 27 Second operand 3 states. [2020-10-19 18:46:39,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:46:39,306 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2020-10-19 18:46:39,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:46:39,308 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 69 transitions. [2020-10-19 18:46:39,308 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 18:46:39,309 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 49 states and 63 transitions. [2020-10-19 18:46:39,309 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-10-19 18:46:39,310 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-10-19 18:46:39,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 63 transitions. [2020-10-19 18:46:39,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:46:39,310 INFO L691 BuchiCegarLoop]: Abstraction has 49 states and 63 transitions. [2020-10-19 18:46:39,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 63 transitions. [2020-10-19 18:46:39,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-10-19 18:46:39,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-19 18:46:39,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2020-10-19 18:46:39,314 INFO L714 BuchiCegarLoop]: Abstraction has 49 states and 63 transitions. [2020-10-19 18:46:39,314 INFO L594 BuchiCegarLoop]: Abstraction has 49 states and 63 transitions. [2020-10-19 18:46:39,315 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-10-19 18:46:39,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 63 transitions. [2020-10-19 18:46:39,315 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 18:46:39,316 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:46:39,316 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:46:39,316 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:46:39,316 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:46:39,317 INFO L794 eck$LassoCheckResult]: Stem: 680#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 672#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 673#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 691#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 703#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;havoc test_fun_#t~mem4;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 701#L554 assume !(test_fun_#t~mem7 > test_fun_#t~mem8);havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 699#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 697#L559-1 assume !!(test_fun_#t~mem11 > 0);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem12; 694#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 689#L559-1 [2020-10-19 18:46:39,317 INFO L796 eck$LassoCheckResult]: Loop: 689#L559-1 assume !!(test_fun_#t~mem11 > 0);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem12; 688#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 689#L559-1 [2020-10-19 18:46:39,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:39,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1215726572, now seen corresponding path program 1 times [2020-10-19 18:46:39,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:39,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064350842] [2020-10-19 18:46:39,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:39,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:39,328 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:39,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:39,338 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:39,341 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:46:39,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:39,342 INFO L82 PathProgramCache]: Analyzing trace with hash 2428, now seen corresponding path program 1 times [2020-10-19 18:46:39,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:39,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288288832] [2020-10-19 18:46:39,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:39,346 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:39,349 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:39,350 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:46:39,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:39,351 INFO L82 PathProgramCache]: Analyzing trace with hash 82132647, now seen corresponding path program 2 times [2020-10-19 18:46:39,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:39,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700141178] [2020-10-19 18:46:39,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:39,363 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:39,373 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:39,377 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:46:39,753 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 94 [2020-10-19 18:46:39,866 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-19 18:46:39,870 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:46:39,870 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:46:39,871 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:46:39,871 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:46:39,871 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:46:39,871 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:39,871 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:46:39,871 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:46:39,871 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18-alloca.i_Iteration8_Lasso [2020-10-19 18:46:39,872 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:46:39,872 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:46:39,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:39,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:39,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:39,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:39,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:39,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:39,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:39,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:39,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:39,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:39,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:39,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:39,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:39,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:39,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:39,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:39,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:40,112 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2020-10-19 18:46:40,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:40,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:40,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:40,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:40,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:40,603 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:46:40,603 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:46:40,652 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 [2020-10-19 18:46:40,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:40,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:40,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:40,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:40,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:40,655 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:40,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:40,656 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 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:40,681 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 [2020-10-19 18:46:40,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:40,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:40,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:40,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:40,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:40,683 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:40,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:40,684 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 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:40,708 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 [2020-10-19 18:46:40,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:40,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:40,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:40,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:40,710 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:46:40,711 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:46:40,718 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 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:40,740 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 [2020-10-19 18:46:40,741 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:40,741 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:40,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:40,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:40,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:40,742 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:40,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:40,743 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 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:40,767 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 [2020-10-19 18:46:40,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:40,768 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:40,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:40,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:40,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:40,768 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:40,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:40,769 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 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:40,792 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 [2020-10-19 18:46:40,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:40,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:40,795 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:40,795 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:40,796 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:46:40,796 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:46:40,799 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:46:40,821 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 [2020-10-19 18:46:40,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:40,823 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:40,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:40,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:40,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:40,824 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:40,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:40,825 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:46:40,847 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 [2020-10-19 18:46:40,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:40,849 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:40,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:40,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:40,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:40,850 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:40,850 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:40,852 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 39 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:46:40,884 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 [2020-10-19 18:46:40,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:40,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:40,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:40,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:40,888 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:46:40,888 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:40,892 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:46:40,928 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 Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:40,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:40,931 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:40,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:40,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:40,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:40,931 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:40,931 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:40,932 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 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:40,953 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 [2020-10-19 18:46:40,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:40,955 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:40,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:40,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:40,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:40,955 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:40,955 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:40,957 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 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:40,984 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 [2020-10-19 18:46:40,985 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:40,985 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:40,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:40,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:40,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:40,986 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:40,986 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:40,987 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 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:41,010 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 [2020-10-19 18:46:41,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:41,012 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:41,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:41,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:41,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:41,012 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:41,012 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:41,013 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 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:41,036 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 [2020-10-19 18:46:41,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:41,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:41,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:41,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:41,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:41,039 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:41,039 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:41,040 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 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:41,063 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 [2020-10-19 18:46:41,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:41,064 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:41,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:41,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:41,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:41,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:41,065 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:41,066 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 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:41,088 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 [2020-10-19 18:46:41,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:41,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:41,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:41,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:41,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:41,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:41,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:41,091 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 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:41,113 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 [2020-10-19 18:46:41,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:41,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:41,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:41,114 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:41,116 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:46:41,116 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:46:41,122 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 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:41,143 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 [2020-10-19 18:46:41,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:41,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:41,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:41,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:41,150 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:46:41,150 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:46:41,161 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 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:41,187 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 [2020-10-19 18:46:41,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:41,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:41,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:41,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:41,192 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:46:41,192 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:46:41,203 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:46:41,236 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 [2020-10-19 18:46:41,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:41,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:41,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:41,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:41,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:46:41,239 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:41,243 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 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:41,272 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 [2020-10-19 18:46:41,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:41,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:41,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:41,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:41,280 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:46:41,280 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:46:41,293 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:46:41,311 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-10-19 18:46:41,311 INFO L444 ModelExtractionUtils]: 8 out of 31 variables were initially zero. Simplification set additionally 19 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:41,318 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:46:41,320 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-19 18:46:41,320 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:46:41,320 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_#t~mem11) = 1*ULTIMATE.start_test_fun_#t~mem11 Supporting invariants [-1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_3 + 1*ULTIMATE.start_test_fun_#t~mem11 >= 0] [2020-10-19 18:46:41,365 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2020-10-19 18:46:41,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:46:41,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 18:46:41,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:46:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:46:41,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:46:41,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:46:41,435 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2020-10-19 18:46:41,435 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:46:41,439 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:46:41,440 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:46:41,440 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:13 [2020-10-19 18:46:41,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:46:41,455 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 [2020-10-19 18:46:41,455 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 49 states and 63 transitions. cyclomatic complexity: 21 Second operand 3 states. [2020-10-19 18:46:41,492 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 49 states and 63 transitions. cyclomatic complexity: 21. Second operand 3 states. Result 101 states and 129 transitions. Complement of second has 5 states. [2020-10-19 18:46:41,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:46:41,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:46:41,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2020-10-19 18:46:41,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 9 letters. Loop has 2 letters. [2020-10-19 18:46:41,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:46:41,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 11 letters. Loop has 2 letters. [2020-10-19 18:46:41,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:46:41,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 9 letters. Loop has 4 letters. [2020-10-19 18:46:41,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:46:41,499 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 101 states and 129 transitions. [2020-10-19 18:46:41,502 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-19 18:46:41,503 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 101 states to 92 states and 117 transitions. [2020-10-19 18:46:41,504 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-10-19 18:46:41,504 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-10-19 18:46:41,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 117 transitions. [2020-10-19 18:46:41,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:46:41,505 INFO L691 BuchiCegarLoop]: Abstraction has 92 states and 117 transitions. [2020-10-19 18:46:41,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 117 transitions. [2020-10-19 18:46:41,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 68. [2020-10-19 18:46:41,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-19 18:46:41,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 86 transitions. [2020-10-19 18:46:41,510 INFO L714 BuchiCegarLoop]: Abstraction has 68 states and 86 transitions. [2020-10-19 18:46:41,510 INFO L594 BuchiCegarLoop]: Abstraction has 68 states and 86 transitions. [2020-10-19 18:46:41,511 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-10-19 18:46:41,511 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 86 transitions. [2020-10-19 18:46:41,512 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 18:46:41,512 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:46:41,512 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:46:41,512 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:46:41,512 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:46:41,513 INFO L794 eck$LassoCheckResult]: Stem: 924#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 917#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 918#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 929#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 930#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;havoc test_fun_#t~mem4;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 935#L554 assume test_fun_#t~mem7 > test_fun_#t~mem8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 972#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 967#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 966#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 926#L555-1 [2020-10-19 18:46:41,513 INFO L796 eck$LassoCheckResult]: Loop: 926#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 925#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 926#L555-1 [2020-10-19 18:46:41,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:41,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1215264812, now seen corresponding path program 1 times [2020-10-19 18:46:41,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:41,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258998724] [2020-10-19 18:46:41,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:41,524 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:41,532 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:41,536 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:46:41,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:41,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1948, now seen corresponding path program 2 times [2020-10-19 18:46:41,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:41,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060763308] [2020-10-19 18:46:41,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:41,541 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:41,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:41,543 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:41,545 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:46:41,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:41,546 INFO L82 PathProgramCache]: Analyzing trace with hash -361619193, now seen corresponding path program 2 times [2020-10-19 18:46:41,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:41,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129334600] [2020-10-19 18:46:41,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:41,557 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:41,567 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:41,570 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:46:42,012 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 96 [2020-10-19 18:46:42,119 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-19 18:46:42,124 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:46:42,124 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:46:42,124 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:46:42,124 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:46:42,124 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:46:42,124 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:42,124 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:46:42,125 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:46:42,125 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18-alloca.i_Iteration9_Lasso [2020-10-19 18:46:42,125 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:46:42,125 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:46:42,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,350 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-10-19 18:46:42,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:46:42,835 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:46:42,835 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:42,838 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 [2020-10-19 18:46:42,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:42,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:42,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:42,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:42,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:42,840 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:42,840 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:42,841 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 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:42,871 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 [2020-10-19 18:46:42,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:42,873 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:42,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:42,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:42,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:42,874 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:42,874 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:42,877 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 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:42,903 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 [2020-10-19 18:46:42,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:42,905 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:42,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:42,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:42,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:42,906 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:42,906 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:42,908 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 57 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:42,930 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 [2020-10-19 18:46:42,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:42,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:42,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:42,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:42,932 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:46:42,932 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:46:42,935 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 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:42,960 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 [2020-10-19 18:46:42,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:42,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:42,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:42,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:42,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:42,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:42,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:42,963 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 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:42,985 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 [2020-10-19 18:46:42,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:42,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:46:42,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:42,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:42,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:42,987 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:46:42,987 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:46:42,988 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 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:43,011 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 [2020-10-19 18:46:43,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:43,013 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:43,013 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:43,013 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:43,014 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:46:43,014 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:46:43,017 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 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:43,039 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 [2020-10-19 18:46:43,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:46:43,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:46:43,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:46:43,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:46:43,045 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:46:43,046 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:46:43,061 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:46:43,077 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-10-19 18:46:43,077 INFO L444 ModelExtractionUtils]: 24 out of 31 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:46:43,079 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:46:43,081 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-10-19 18:46:43,081 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:46:43,081 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_4) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_4 Supporting invariants [-1*ULTIMATE.start_test_fun_#t~mem9 + 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_4 >= 0] [2020-10-19 18:46:43,135 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2020-10-19 18:46:43,137 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-10-19 18:46:43,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:46:43,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 18:46:43,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:46:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:46:43,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 18:46:43,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:46:43,193 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2020-10-19 18:46:43,194 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:46:43,198 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:46:43,198 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:46:43,198 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:17 [2020-10-19 18:46:43,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:46:43,212 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 [2020-10-19 18:46:43,212 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 68 states and 86 transitions. cyclomatic complexity: 27 Second operand 3 states. [2020-10-19 18:46:43,259 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 68 states and 86 transitions. cyclomatic complexity: 27. Second operand 3 states. Result 140 states and 174 transitions. Complement of second has 6 states. [2020-10-19 18:46:43,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2020-10-19 18:46:43,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:46:43,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2020-10-19 18:46:43,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 2 letters. [2020-10-19 18:46:43,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:46:43,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2020-10-19 18:46:43,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:46:43,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 4 letters. [2020-10-19 18:46:43,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:46:43,265 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 140 states and 174 transitions. [2020-10-19 18:46:43,266 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-10-19 18:46:43,268 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 140 states to 130 states and 163 transitions. [2020-10-19 18:46:43,268 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-10-19 18:46:43,268 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-10-19 18:46:43,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 130 states and 163 transitions. [2020-10-19 18:46:43,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:46:43,269 INFO L691 BuchiCegarLoop]: Abstraction has 130 states and 163 transitions. [2020-10-19 18:46:43,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states and 163 transitions. [2020-10-19 18:46:43,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 110. [2020-10-19 18:46:43,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-19 18:46:43,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 141 transitions. [2020-10-19 18:46:43,277 INFO L714 BuchiCegarLoop]: Abstraction has 110 states and 141 transitions. [2020-10-19 18:46:43,277 INFO L594 BuchiCegarLoop]: Abstraction has 110 states and 141 transitions. [2020-10-19 18:46:43,277 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-10-19 18:46:43,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states and 141 transitions. [2020-10-19 18:46:43,278 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-10-19 18:46:43,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:46:43,279 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:46:43,280 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [4, 2, 2, 2, 2, 2, 1, 1, 1] [2020-10-19 18:46:43,280 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:46:43,280 INFO L794 eck$LassoCheckResult]: Stem: 1240#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1233#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1234#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 1254#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 1244#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;havoc test_fun_#t~mem4;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1253#L554 assume !(test_fun_#t~mem7 > test_fun_#t~mem8);havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 1252#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1238#L559-1 assume !!(test_fun_#t~mem11 > 0);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem12; 1239#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1289#L559-1 assume !(test_fun_#t~mem11 > 0);havoc test_fun_#t~mem11; 1314#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 1311#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 1308#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;havoc test_fun_#t~mem4;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1305#L554 assume !(test_fun_#t~mem7 > test_fun_#t~mem8);havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 1301#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1298#L559-1 assume !!(test_fun_#t~mem11 > 0);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem12; 1288#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1251#L559-1 [2020-10-19 18:46:43,280 INFO L796 eck$LassoCheckResult]: Loop: 1251#L559-1 assume !!(test_fun_#t~mem11 > 0);havoc test_fun_#t~mem11;call test_fun_#t~mem12 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem12 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem12; 1250#L559-3 call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1251#L559-1 [2020-10-19 18:46:43,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:43,281 INFO L82 PathProgramCache]: Analyzing trace with hash -2055714993, now seen corresponding path program 2 times [2020-10-19 18:46:43,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:43,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703871160] [2020-10-19 18:46:43,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:46:43,314 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-19 18:46:43,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703871160] [2020-10-19 18:46:43,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:46:43,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:46:43,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298613783] [2020-10-19 18:46:43,319 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 18:46:43,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:43,319 INFO L82 PathProgramCache]: Analyzing trace with hash 2428, now seen corresponding path program 2 times [2020-10-19 18:46:43,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:43,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259543960] [2020-10-19 18:46:43,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:43,324 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:43,327 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:43,329 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:46:43,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:46:43,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:46:43,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:46:43,359 INFO L87 Difference]: Start difference. First operand 110 states and 141 transitions. cyclomatic complexity: 47 Second operand 5 states. [2020-10-19 18:46:43,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:46:43,403 INFO L93 Difference]: Finished difference Result 88 states and 105 transitions. [2020-10-19 18:46:43,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:46:43,403 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 105 transitions. [2020-10-19 18:46:43,404 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:46:43,405 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 24 states and 27 transitions. [2020-10-19 18:46:43,405 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-10-19 18:46:43,405 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-10-19 18:46:43,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 27 transitions. [2020-10-19 18:46:43,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:46:43,405 INFO L691 BuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2020-10-19 18:46:43,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 27 transitions. [2020-10-19 18:46:43,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-19 18:46:43,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-19 18:46:43,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2020-10-19 18:46:43,409 INFO L714 BuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2020-10-19 18:46:43,409 INFO L594 BuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2020-10-19 18:46:43,409 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-10-19 18:46:43,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 27 transitions. [2020-10-19 18:46:43,410 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:46:43,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:46:43,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:46:43,411 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 3, 2, 2, 2, 2, 1, 1, 1] [2020-10-19 18:46:43,411 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:46:43,411 INFO L794 eck$LassoCheckResult]: Stem: 1443#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1441#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~nondet19, main_#t~ret20;test_fun_#in~x, test_fun_#in~y := main_#t~nondet18, main_#t~nondet19;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~mem7, test_fun_#t~mem8, test_fun_#t~mem10, test_fun_#t~mem9, test_fun_#t~mem12, test_fun_#t~mem11, test_fun_#t~mem4, test_fun_#t~mem5, test_fun_#t~short6, test_fun_#t~mem13, test_fun_#t~mem14, test_fun_#t~short15, test_fun_#t~mem16, test_fun_#t~mem17, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1442#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 1448#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 1449#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;havoc test_fun_#t~mem4;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1454#L554 assume test_fun_#t~mem7 > test_fun_#t~mem8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 1446#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 1447#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 1455#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 1462#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 1461#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 1459#L555-1 assume !(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9; 1453#L559-4 call test_fun_#t~mem4 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem4 > 0; 1450#L553-1 assume test_fun_#t~short6;call test_fun_#t~mem5 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short6 := test_fun_#t~mem5 > 0; 1451#L553-3 assume !!test_fun_#t~short6;havoc test_fun_#t~mem5;havoc test_fun_#t~short6;havoc test_fun_#t~mem4;call test_fun_#t~mem7 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call test_fun_#t~mem8 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 1452#L554 assume test_fun_#t~mem7 > test_fun_#t~mem8;havoc test_fun_#t~mem7;havoc test_fun_#t~mem8; 1460#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 1458#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 1456#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 1445#L555-1 [2020-10-19 18:46:43,411 INFO L796 eck$LassoCheckResult]: Loop: 1445#L555-1 assume !!(test_fun_#t~mem9 > 0);havoc test_fun_#t~mem9;call test_fun_#t~mem10 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem10 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem10; 1444#L555-3 call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 1445#L555-1 [2020-10-19 18:46:43,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:43,412 INFO L82 PathProgramCache]: Analyzing trace with hash -2121929575, now seen corresponding path program 2 times [2020-10-19 18:46:43,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:43,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257348891] [2020-10-19 18:46:43,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:46:43,442 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-19 18:46:43,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257348891] [2020-10-19 18:46:43,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:46:43,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:46:43,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515604941] [2020-10-19 18:46:43,444 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 18:46:43,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:46:43,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1948, now seen corresponding path program 3 times [2020-10-19 18:46:43,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:46:43,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164963017] [2020-10-19 18:46:43,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:46:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:43,449 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:46:43,450 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:46:43,452 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:46:43,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:46:43,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:46:43,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:46:43,483 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. cyclomatic complexity: 6 Second operand 5 states. [2020-10-19 18:46:43,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:46:43,515 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2020-10-19 18:46:43,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:46:43,515 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 14 transitions. [2020-10-19 18:46:43,516 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:46:43,516 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2020-10-19 18:46:43,516 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 18:46:43,516 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 18:46:43,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 18:46:43,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:46:43,516 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:46:43,516 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:46:43,516 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:46:43,516 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-10-19 18:46:43,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:46:43,517 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:46:43,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 18:46:43,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 06:46:43 BoogieIcfgContainer [2020-10-19 18:46:43,524 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 18:46:43,525 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:46:43,525 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:46:43,525 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:46:43,526 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:46:17" (3/4) ... [2020-10-19 18:46:43,529 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:46:43,530 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:46:43,531 INFO L168 Benchmark]: Toolchain (without parser) took 27288.85 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 324.0 MB). Free memory was 955.9 MB in the beginning and 836.4 MB in the end (delta: 119.6 MB). Peak memory consumption was 443.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:46:43,532 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:46:43,532 INFO L168 Benchmark]: CACSL2BoogieTranslator took 579.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -165.1 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:46:43,533 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.93 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:46:43,533 INFO L168 Benchmark]: Boogie Preprocessor took 30.12 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:46:43,534 INFO L168 Benchmark]: RCFGBuilder took 493.84 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: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:46:43,534 INFO L168 Benchmark]: BuchiAutomizer took 26119.42 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 190.8 MB). Free memory was 1.1 GB in the beginning and 836.4 MB in the end (delta: 248.0 MB). Peak memory consumption was 438.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:46:43,534 INFO L168 Benchmark]: Witness Printer took 4.98 ms. Allocated memory is still 1.4 GB. Free memory is still 836.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:46:43,537 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 579.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -165.1 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.93 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.12 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 493.84 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: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 26119.42 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 190.8 MB). Free memory was 1.1 GB in the beginning and 836.4 MB in the end (delta: 248.0 MB). Peak memory consumption was 438.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.98 ms. Allocated memory is still 1.4 GB. Free memory is still 836.4 MB. 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 #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 11 terminating modules (7 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[y_ref][y_ref] and consists of 6 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[x_ref][x_ref] and consists of 7 locations. One deterministic module has affine ranking function org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@4188d2ab and consists of 3 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[x_ref][x_ref] and consists of 4 locations. 7 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 26.0s and 12 iterations. TraceHistogramMax:5. Analysis of lassos took 11.2s. Construction of modules took 12.6s. Büchi inclusion checks took 1.9s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 59 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 110 states and ocurred in iteration 9. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 8/8 HoareTripleCheckerStatistics: 115 SDtfs, 83 SDslu, 103 SDs, 0 SdLazy, 255 SolverSat, 41 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 12.6s Time LassoAnalysisResults: nont0 unkn0 SFLI4 SFLT0 conc0 concLT0 SILN0 SILU3 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital230 mio100 ax107 hnf99 lsp90 ukn70 mio100 lsp35 div100 bol103 ite100 ukn100 eq181 hnf89 smp96 dnf138 smp89 tf100 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 73ms VariablesStem: 10 VariablesLoop: 7 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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...