./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/b.12-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/b.12-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer --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 27b51ff95b1c87aada11269295eff3fc5c30957f ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:59:00,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:59:00,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:59:00,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:59:00,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:59:00,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:59:00,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:59:00,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:59:00,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:59:00,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:59:00,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:59:00,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:59:00,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:59:00,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:59:00,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:59:00,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:59:00,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:59:00,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:59:00,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:59:00,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:59:00,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:59:00,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:59:00,770 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:59:00,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:59:00,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:59:00,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:59:00,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:59:00,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:59:00,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:59:00,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:59:00,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:59:00,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:59:00,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:59:00,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:59:00,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:59:00,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:59:00,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:59:00,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:59:00,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:59:00,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:59:00,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:59:00,778 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 12:59:00,788 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:59:00,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:59:00,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:59:00,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:59:00,789 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:59:00,789 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 12:59:00,789 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 12:59:00,789 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 12:59:00,789 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 12:59:00,789 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 12:59:00,789 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 12:59:00,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:59:00,790 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 12:59:00,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:59:00,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:59:00,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 12:59:00,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 12:59:00,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 12:59:00,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:59:00,790 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 12:59:00,790 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:59:00,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 12:59:00,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:59:00,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:59:00,791 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 12:59:00,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:59:00,791 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:59:00,791 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:59:00,791 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 12:59:00,792 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 12:59:00,792 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer 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 -> 27b51ff95b1c87aada11269295eff3fc5c30957f [2019-12-07 12:59:00,892 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:59:00,902 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:59:00,905 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:59:00,906 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:59:00,907 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:59:00,907 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/b.12-alloca.i [2019-12-07 12:59:00,945 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/data/f472fcf8b/48201c2099d54221943ec9c2669eb0c6/FLAGaeda176cf [2019-12-07 12:59:01,403 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:59:01,403 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/sv-benchmarks/c/termination-memory-alloca/b.12-alloca.i [2019-12-07 12:59:01,413 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/data/f472fcf8b/48201c2099d54221943ec9c2669eb0c6/FLAGaeda176cf [2019-12-07 12:59:01,421 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/data/f472fcf8b/48201c2099d54221943ec9c2669eb0c6 [2019-12-07 12:59:01,423 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:59:01,424 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:59:01,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:59:01,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:59:01,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:59:01,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:59:01" (1/1) ... [2019-12-07 12:59:01,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@375df547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:59:01, skipping insertion in model container [2019-12-07 12:59:01,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:59:01" (1/1) ... [2019-12-07 12:59:01,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:59:01,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:59:01,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:59:01,655 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:59:01,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:59:01,710 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:59:01,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:59:01 WrapperNode [2019-12-07 12:59:01,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:59:01,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:59:01,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:59:01,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:59:01,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:59:01" (1/1) ... [2019-12-07 12:59:01,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:59:01" (1/1) ... [2019-12-07 12:59:01,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:59:01,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:59:01,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:59:01,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:59:01,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:59:01" (1/1) ... [2019-12-07 12:59:01,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:59:01" (1/1) ... [2019-12-07 12:59:01,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:59:01" (1/1) ... [2019-12-07 12:59:01,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:59:01" (1/1) ... [2019-12-07 12:59:01,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:59:01" (1/1) ... [2019-12-07 12:59:01,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:59:01" (1/1) ... [2019-12-07 12:59:01,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:59:01" (1/1) ... [2019-12-07 12:59:01,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:59:01,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:59:01,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:59:01,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:59:01,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:59:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 12:59:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 12:59:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:59:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:59:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:59:01,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:59:01,953 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:59:01,953 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 12:59:01,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:59:01 BoogieIcfgContainer [2019-12-07 12:59:01,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:59:01,955 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 12:59:01,955 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 12:59:01,957 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 12:59:01,958 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:59:01,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 12:59:01" (1/3) ... [2019-12-07 12:59:01,958 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49657a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:59:01, skipping insertion in model container [2019-12-07 12:59:01,958 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:59:01,959 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:59:01" (2/3) ... [2019-12-07 12:59:01,959 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49657a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:59:01, skipping insertion in model container [2019-12-07 12:59:01,959 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:59:01,959 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:59:01" (3/3) ... [2019-12-07 12:59:01,960 INFO L371 chiAutomizerObserver]: Analyzing ICFG b.12-alloca.i [2019-12-07 12:59:01,988 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 12:59:01,988 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 12:59:01,988 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 12:59:01,988 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:59:01,989 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:59:01,989 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 12:59:01,989 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:59:01,989 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 12:59:01,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-12-07 12:59:02,011 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 12:59:02,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:59:02,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:59:02,016 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 12:59:02,016 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 12:59:02,016 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 12:59:02,016 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-12-07 12:59:02,017 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 12:59:02,017 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:59:02,017 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:59:02,017 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 12:59:02,017 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 12:59:02,022 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~ret15;test_fun_#in~x, test_fun_#in~y := main_#t~nondet13, main_#t~nondet14;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem8, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~short7, test_fun_#t~mem12, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 7#L559-2true [2019-12-07 12:59:02,023 INFO L796 eck$LassoCheckResult]: Loop: 7#L559-2true call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem5 > 0; 13#L555-1true assume test_fun_#t~short7; 5#L555-3true assume !!test_fun_#t~short7;havoc test_fun_#t~short7;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;call test_fun_#t~mem8 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 8#L556true assume test_fun_#t~mem8 > 0;havoc test_fun_#t~mem8;call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem9 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem9; 7#L559-2true [2019-12-07 12:59:02,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:59:02,026 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-12-07 12:59:02,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:59:02,032 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807558001] [2019-12-07 12:59:02,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:59:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:02,141 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:59:02,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:59:02,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1142247, now seen corresponding path program 1 times [2019-12-07 12:59:02,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:59:02,142 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137030343] [2019-12-07 12:59:02,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:59:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:02,156 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:59:02,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:59:02,157 INFO L82 PathProgramCache]: Analyzing trace with hash 889569449, now seen corresponding path program 1 times [2019-12-07 12:59:02,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:59:02,157 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308509554] [2019-12-07 12:59:02,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:59:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:02,197 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:59:02,493 WARN L192 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 80 [2019-12-07 12:59:02,597 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:59:02,598 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:59:02,598 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:59:02,598 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:59:02,598 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 12:59:02,598 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:59:02,599 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:59:02,599 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:59:02,599 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.12-alloca.i_Iteration1_Lasso [2019-12-07 12:59:02,599 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:59:02,599 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:59:02,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:02,804 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-12-07 12:59:02,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:02,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:02,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:02,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:02,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:02,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:02,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:02,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:02,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:02,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:02,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:02,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:02,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:02,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:02,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:02,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:03,158 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:59:03,162 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/z3 Starting monitored process 2 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:59:03,165 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 [2019-12-07 12:59:03,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:03,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:03,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:03,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:03,171 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:59:03,172 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:59:03,177 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:03,181 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 [2019-12-07 12:59:03,183 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:03,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:03,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:03,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:03,186 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:59:03,186 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:59:03,190 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:59:03,195 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 [2019-12-07 12:59:03,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:03,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:03,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:03,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:03,199 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:59:03,199 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:59:03,202 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:03,206 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 [2019-12-07 12:59:03,207 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:03,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:03,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:03,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:03,209 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:59:03,209 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:59:03,212 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:59:03,216 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 [2019-12-07 12:59:03,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:03,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:03,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:03,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:03,219 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:59:03,219 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:59:03,222 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:59:03,226 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 [2019-12-07 12:59:03,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:03,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:03,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:03,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:03,229 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:59:03,229 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:59:03,231 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:59:03,235 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 [2019-12-07 12:59:03,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:03,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:03,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:03,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:03,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:59:03,239 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:59:03,245 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 12:59:03,257 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-12-07 12:59:03,257 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:03,261 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 12:59:03,263 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 12:59:03,264 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 12:59:03,264 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)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~x_ref~0.base) ULTIMATE.start_test_fun_~x_ref~0.offset)_1 Supporting invariants [] [2019-12-07 12:59:03,313 INFO L297 tatePredicateManager]: 19 out of 19 supporting invariants were superfluous and have been removed [2019-12-07 12:59:03,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 12:59:03,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:59:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:59:03,346 INFO L264 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:59:03,347 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:59:03,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:59:03,361 INFO L264 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 12:59:03,361 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:59:03,368 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 12:59:03,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:59:03,408 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-12-07 12:59:03,409 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 4 states. [2019-12-07 12:59:03,477 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 4 states. Result 50 states and 67 transitions. Complement of second has 9 states. [2019-12-07 12:59:03,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 12:59:03,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 12:59:03,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 36 transitions. [2019-12-07 12:59:03,480 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 2 letters. Loop has 4 letters. [2019-12-07 12:59:03,481 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:59:03,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 6 letters. Loop has 4 letters. [2019-12-07 12:59:03,481 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:59:03,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 36 transitions. Stem has 2 letters. Loop has 8 letters. [2019-12-07 12:59:03,481 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:59:03,482 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 67 transitions. [2019-12-07 12:59:03,484 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2019-12-07 12:59:03,487 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 25 states and 39 transitions. [2019-12-07 12:59:03,488 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-12-07 12:59:03,488 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-12-07 12:59:03,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 39 transitions. [2019-12-07 12:59:03,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 12:59:03,488 INFO L688 BuchiCegarLoop]: Abstraction has 25 states and 39 transitions. [2019-12-07 12:59:03,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 39 transitions. [2019-12-07 12:59:03,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2019-12-07 12:59:03,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-12-07 12:59:03,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 37 transitions. [2019-12-07 12:59:03,507 INFO L711 BuchiCegarLoop]: Abstraction has 24 states and 37 transitions. [2019-12-07 12:59:03,507 INFO L591 BuchiCegarLoop]: Abstraction has 24 states and 37 transitions. [2019-12-07 12:59:03,507 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 12:59:03,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 37 transitions. [2019-12-07 12:59:03,508 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2019-12-07 12:59:03,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:59:03,508 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:59:03,508 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 12:59:03,508 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 12:59:03,508 INFO L794 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 187#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~ret15;test_fun_#in~x, test_fun_#in~y := main_#t~nondet13, main_#t~nondet14;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem8, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~short7, test_fun_#t~mem12, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 188#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem5 > 0; 195#L555-1 [2019-12-07 12:59:03,509 INFO L796 eck$LassoCheckResult]: Loop: 195#L555-1 assume !test_fun_#t~short7;call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem6 > 0; 190#L555-3 assume !!test_fun_#t~short7;havoc test_fun_#t~short7;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;call test_fun_#t~mem8 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 191#L556 assume test_fun_#t~mem8 > 0;havoc test_fun_#t~mem8;call test_fun_#t~mem9 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_#t~mem9 - 1, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);havoc test_fun_#t~mem9; 194#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem5 > 0; 195#L555-1 [2019-12-07 12:59:03,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:59:03,509 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2019-12-07 12:59:03,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:59:03,509 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138397979] [2019-12-07 12:59:03,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:59:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:03,536 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:59:03,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:59:03,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1298969, now seen corresponding path program 1 times [2019-12-07 12:59:03,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:59:03,536 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109903209] [2019-12-07 12:59:03,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:59:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:03,549 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:59:03,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:59:03,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1806908732, now seen corresponding path program 1 times [2019-12-07 12:59:03,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:59:03,549 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050235698] [2019-12-07 12:59:03,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:59:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:59:03,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:59:03,597 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050235698] [2019-12-07 12:59:03,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:59:03,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 12:59:03,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248090637] [2019-12-07 12:59:03,808 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-12-07 12:59:03,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:59:03,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:59:03,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:59:03,811 INFO L87 Difference]: Start difference. First operand 24 states and 37 transitions. cyclomatic complexity: 15 Second operand 5 states. [2019-12-07 12:59:03,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:59:03,847 INFO L93 Difference]: Finished difference Result 38 states and 55 transitions. [2019-12-07 12:59:03,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:59:03,848 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 55 transitions. [2019-12-07 12:59:03,849 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2019-12-07 12:59:03,850 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 28 states and 39 transitions. [2019-12-07 12:59:03,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-12-07 12:59:03,850 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-12-07 12:59:03,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 39 transitions. [2019-12-07 12:59:03,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 12:59:03,850 INFO L688 BuchiCegarLoop]: Abstraction has 28 states and 39 transitions. [2019-12-07 12:59:03,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 39 transitions. [2019-12-07 12:59:03,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 14. [2019-12-07 12:59:03,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-07 12:59:03,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 20 transitions. [2019-12-07 12:59:03,852 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 20 transitions. [2019-12-07 12:59:03,852 INFO L591 BuchiCegarLoop]: Abstraction has 14 states and 20 transitions. [2019-12-07 12:59:03,852 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 12:59:03,852 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 20 transitions. [2019-12-07 12:59:03,852 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 12:59:03,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:59:03,853 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:59:03,853 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 12:59:03,853 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 12:59:03,853 INFO L794 eck$LassoCheckResult]: Stem: 263#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 261#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~ret15;test_fun_#in~x, test_fun_#in~y := main_#t~nondet13, main_#t~nondet14;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem8, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~short7, test_fun_#t~mem12, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 262#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem5 > 0; 269#L555-1 [2019-12-07 12:59:03,853 INFO L796 eck$LassoCheckResult]: Loop: 269#L555-1 assume test_fun_#t~short7; 264#L555-3 assume !!test_fun_#t~short7;havoc test_fun_#t~short7;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;call test_fun_#t~mem8 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 265#L556 assume !(test_fun_#t~mem8 > 0);havoc test_fun_#t~mem8;call test_fun_#t~mem10 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 272#L559 assume test_fun_#t~mem10 > 0;havoc test_fun_#t~mem10;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem11 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11; 268#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem5 > 0; 269#L555-1 [2019-12-07 12:59:03,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:59:03,853 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 2 times [2019-12-07 12:59:03,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:59:03,854 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613189057] [2019-12-07 12:59:03,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:59:03,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:03,873 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:59:03,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:59:03,873 INFO L82 PathProgramCache]: Analyzing trace with hash 38423515, now seen corresponding path program 1 times [2019-12-07 12:59:03,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:59:03,874 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134194856] [2019-12-07 12:59:03,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:59:03,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:03,884 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:59:03,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:59:03,884 INFO L82 PathProgramCache]: Analyzing trace with hash 177751320, now seen corresponding path program 1 times [2019-12-07 12:59:03,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:59:03,885 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233828475] [2019-12-07 12:59:03,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:59:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:59:03,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:59:03,914 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233828475] [2019-12-07 12:59:03,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:59:03,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 12:59:03,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257731234] [2019-12-07 12:59:04,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:59:04,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:59:04,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:59:04,005 INFO L87 Difference]: Start difference. First operand 14 states and 20 transitions. cyclomatic complexity: 8 Second operand 5 states. [2019-12-07 12:59:04,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:59:04,029 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2019-12-07 12:59:04,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:59:04,030 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2019-12-07 12:59:04,030 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 12:59:04,030 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 15 transitions. [2019-12-07 12:59:04,031 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-12-07 12:59:04,031 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-12-07 12:59:04,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2019-12-07 12:59:04,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 12:59:04,031 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-12-07 12:59:04,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2019-12-07 12:59:04,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 12:59:04,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 12:59:04,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2019-12-07 12:59:04,032 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-12-07 12:59:04,032 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-12-07 12:59:04,032 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 12:59:04,032 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2019-12-07 12:59:04,033 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 12:59:04,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:59:04,033 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:59:04,033 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 12:59:04,033 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 12:59:04,033 INFO L794 eck$LassoCheckResult]: Stem: 303#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 301#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~ret15;test_fun_#in~x, test_fun_#in~y := main_#t~nondet13, main_#t~nondet14;havoc test_fun_#res;havoc test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset, test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset, test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem8, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~short7, test_fun_#t~mem12, test_fun_~x, test_fun_~y, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, test_fun_~c~0.base, test_fun_~c~0.offset;test_fun_~x := test_fun_#in~x;test_fun_~y := test_fun_#in~y;call test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset := #Ultimate.allocOnStack(4);test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset := test_fun_#t~malloc2.base, test_fun_#t~malloc2.offset;call test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset := #Ultimate.allocOnStack(4);test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset := test_fun_#t~malloc3.base, test_fun_#t~malloc3.offset;call test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset;call write~int(test_fun_~x, test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);call write~int(test_fun_~y, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 302#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem5 > 0; 309#L555-1 [2019-12-07 12:59:04,033 INFO L796 eck$LassoCheckResult]: Loop: 309#L555-1 assume !test_fun_#t~short7;call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem6 > 0; 304#L555-3 assume !!test_fun_#t~short7;havoc test_fun_#t~short7;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;call test_fun_#t~mem8 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 305#L556 assume !(test_fun_#t~mem8 > 0);havoc test_fun_#t~mem8;call test_fun_#t~mem10 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 312#L559 assume test_fun_#t~mem10 > 0;havoc test_fun_#t~mem10;call test_fun_#t~mem11 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);call write~int(test_fun_#t~mem11 - 1, test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);havoc test_fun_#t~mem11; 308#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem5 > 0; 309#L555-1 [2019-12-07 12:59:04,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:59:04,034 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 3 times [2019-12-07 12:59:04,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:59:04,034 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760745048] [2019-12-07 12:59:04,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:59:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:04,052 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:59:04,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:59:04,052 INFO L82 PathProgramCache]: Analyzing trace with hash 40270557, now seen corresponding path program 1 times [2019-12-07 12:59:04,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:59:04,053 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699563026] [2019-12-07 12:59:04,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:59:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:04,068 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:59:04,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:59:04,068 INFO L82 PathProgramCache]: Analyzing trace with hash 179598362, now seen corresponding path program 1 times [2019-12-07 12:59:04,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:59:04,068 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319758730] [2019-12-07 12:59:04,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:59:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:04,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:04,098 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:59:04,445 WARN L192 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 91 [2019-12-07 12:59:04,725 WARN L192 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-12-07 12:59:04,727 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:59:04,728 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:59:04,728 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:59:04,728 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:59:04,728 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 12:59:04,728 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:59:04,728 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:59:04,728 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:59:04,728 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.12-alloca.i_Iteration4_Lasso [2019-12-07 12:59:04,728 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:59:04,729 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:59:04,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:04,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:04,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:04,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:04,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:04,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:04,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:04,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:04,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:04,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:04,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:04,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:04,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:04,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:05,231 WARN L192 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2019-12-07 12:59:05,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:59:05,682 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2019-12-07 12:59:05,755 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:59:05,755 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:05,758 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 [2019-12-07 12:59:05,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,759 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:59:05,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:05,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,760 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:59:05,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:59:05,761 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:05,765 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 [2019-12-07 12:59:05,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:59:05,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:05,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,767 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:59:05,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:59:05,768 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:05,773 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 [2019-12-07 12:59:05,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:05,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,774 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,775 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:59:05,775 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:59:05,777 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:05,782 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 [2019-12-07 12:59:05,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:59:05,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:05,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:59:05,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:59:05,785 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:05,788 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 [2019-12-07 12:59:05,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:05,790 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,790 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,791 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:59:05,791 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:59:05,793 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:05,797 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 [2019-12-07 12:59:05,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,798 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:59:05,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:05,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,799 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:59:05,799 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:59:05,800 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:05,804 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 [2019-12-07 12:59:05,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,805 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:59:05,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:05,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,806 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:59:05,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:59:05,807 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:05,811 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 [2019-12-07 12:59:05,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:05,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,813 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:59:05,813 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:59:05,816 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:05,823 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 [2019-12-07 12:59:05,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,824 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:59:05,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:05,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:59:05,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:59:05,826 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:59:05,832 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 [2019-12-07 12:59:05,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:59:05,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:05,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,834 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:59:05,834 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:59:05,835 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:05,838 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 [2019-12-07 12:59:05,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:05,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,840 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:59:05,840 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:59:05,843 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:59:05,847 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 [2019-12-07 12:59:05,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:05,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,849 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:59:05,849 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:59:05,851 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:05,856 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 [2019-12-07 12:59:05,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:59:05,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:05,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:59:05,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:59:05,859 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:05,863 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 [2019-12-07 12:59:05,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:05,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,865 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:59:05,865 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:59:05,868 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:05,871 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 [2019-12-07 12:59:05,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:05,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,877 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:59:05,877 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:59:05,886 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:59:05,889 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 [2019-12-07 12:59:05,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,891 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-12-07 12:59:05,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,894 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-12-07 12:59:05,895 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:59:05,902 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:05,905 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 [2019-12-07 12:59:05,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:05,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,907 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,908 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:59:05,908 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:59:05,910 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:05,913 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 [2019-12-07 12:59:05,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:05,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,916 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:59:05,916 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:59:05,918 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:05,923 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 [2019-12-07 12:59:05,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:05,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,925 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:59:05,925 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:59:05,929 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:05,933 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 [2019-12-07 12:59:05,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:05,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,937 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:59:05,937 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:59:05,941 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/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 [2019-12-07 12:59:05,945 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 [2019-12-07 12:59:05,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:59:05,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:59:05,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:59:05,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:59:05,949 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:59:05,949 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:59:05,956 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 12:59:05,965 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-12-07 12:59:05,965 INFO L444 ModelExtractionUtils]: 11 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8bc2fd44-321b-4e21-82dd-c51a96118a3f/bin/uautomizer/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:59:05,970 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 12:59:05,972 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 12:59:05,972 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 12:59:05,973 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)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~y_ref~0.base) ULTIMATE.start_test_fun_~y_ref~0.offset)_2 Supporting invariants [] [2019-12-07 12:59:06,032 INFO L297 tatePredicateManager]: 23 out of 23 supporting invariants were superfluous and have been removed [2019-12-07 12:59:06,033 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 12:59:06,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:59:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:59:06,052 INFO L264 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:59:06,052 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:59:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:59:06,059 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 12:59:06,059 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:59:06,060 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 12:59:06,103 INFO L377 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 [2019-12-07 12:59:06,103 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 12:59:06,107 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 12:59:06,107 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-12-07 12:59:06,107 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:17 [2019-12-07 12:59:06,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:59:06,116 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 [2019-12-07 12:59:06,116 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 5 states. [2019-12-07 12:59:06,145 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 5 states. Result 31 states and 38 transitions. Complement of second has 8 states. [2019-12-07 12:59:06,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-12-07 12:59:06,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 12:59:06,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2019-12-07 12:59:06,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 3 letters. Loop has 5 letters. [2019-12-07 12:59:06,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:59:06,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 8 letters. Loop has 5 letters. [2019-12-07 12:59:06,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:59:06,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 3 letters. Loop has 10 letters. [2019-12-07 12:59:06,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:59:06,147 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2019-12-07 12:59:06,148 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 12:59:06,148 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 38 transitions. [2019-12-07 12:59:06,148 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-12-07 12:59:06,148 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-12-07 12:59:06,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 38 transitions. [2019-12-07 12:59:06,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 12:59:06,148 INFO L688 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2019-12-07 12:59:06,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 38 transitions. [2019-12-07 12:59:06,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 25. [2019-12-07 12:59:06,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-07 12:59:06,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2019-12-07 12:59:06,150 INFO L711 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2019-12-07 12:59:06,150 INFO L591 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2019-12-07 12:59:06,150 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 12:59:06,150 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 32 transitions. [2019-12-07 12:59:06,151 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 12:59:06,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:59:06,151 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:59:06,151 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-12-07 12:59:06,151 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2019-12-07 12:59:06,151 INFO L794 eck$LassoCheckResult]: Stem: 490#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 488#L-1 havoc main_#res;havoc main_#t~nondet13, main_#t~nondet14, main_#t~ret15;test_fun_#in~x, test_fun_#in~y := main_#t~nondet13, main_#t~nondet14;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~malloc4.base, test_fun_#t~malloc4.offset, test_fun_#t~mem8, test_fun_#t~mem9, test_fun_#t~mem10, test_fun_#t~mem11, test_fun_#t~mem5, test_fun_#t~mem6, test_fun_#t~short7, test_fun_#t~mem12, 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_~c~0.base, test_fun_~c~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 test_fun_#t~malloc4.base, test_fun_#t~malloc4.offset := #Ultimate.allocOnStack(4);test_fun_~c~0.base, test_fun_~c~0.offset := test_fun_#t~malloc4.base, test_fun_#t~malloc4.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);call write~int(0, test_fun_~c~0.base, test_fun_~c~0.offset, 4); 489#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem5 > 0; 511#L555-1 assume !test_fun_#t~short7;call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem6 > 0; 491#L555-3 [2019-12-07 12:59:06,151 INFO L796 eck$LassoCheckResult]: Loop: 491#L555-3 assume !!test_fun_#t~short7;havoc test_fun_#t~short7;havoc test_fun_#t~mem5;havoc test_fun_#t~mem6;call test_fun_#t~mem8 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4); 492#L556 assume !(test_fun_#t~mem8 > 0);havoc test_fun_#t~mem8;call test_fun_#t~mem10 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4); 499#L559 assume !(test_fun_#t~mem10 > 0);havoc test_fun_#t~mem10; 495#L559-2 call test_fun_#t~mem5 := read~int(test_fun_~x_ref~0.base, test_fun_~x_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem5 > 0; 496#L555-1 assume !test_fun_#t~short7;call test_fun_#t~mem6 := read~int(test_fun_~y_ref~0.base, test_fun_~y_ref~0.offset, 4);test_fun_#t~short7 := test_fun_#t~mem6 > 0; 491#L555-3 [2019-12-07 12:59:06,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:59:06,151 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2019-12-07 12:59:06,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:59:06,152 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118909880] [2019-12-07 12:59:06,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:59:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:06,164 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:59:06,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:59:06,164 INFO L82 PathProgramCache]: Analyzing trace with hash 45964859, now seen corresponding path program 1 times [2019-12-07 12:59:06,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:59:06,164 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876005064] [2019-12-07 12:59:06,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:59:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:59:06,171 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:59:06,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:59:06,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1272583860, now seen corresponding path program 1 times [2019-12-07 12:59:06,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:59:06,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496847638] [2019-12-07 12:59:06,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:59:06,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:59:06,191 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:59:06,192 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496847638] [2019-12-07 12:59:06,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:59:06,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 12:59:06,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215192854] [2019-12-07 12:59:06,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:59:06,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:59:06,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:59:06,260 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. cyclomatic complexity: 11 Second operand 5 states. [2019-12-07 12:59:06,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:59:06,276 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2019-12-07 12:59:06,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:59:06,277 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2019-12-07 12:59:06,277 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 12:59:06,277 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2019-12-07 12:59:06,277 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 12:59:06,277 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 12:59:06,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 12:59:06,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:59:06,277 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:59:06,277 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:59:06,278 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:59:06,278 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-12-07 12:59:06,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 12:59:06,278 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 12:59:06,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 12:59:06,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 12:59:06 BoogieIcfgContainer [2019-12-07 12:59:06,282 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 12:59:06,282 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:59:06,282 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:59:06,282 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:59:06,282 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:59:01" (3/4) ... [2019-12-07 12:59:06,285 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:59:06,285 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:59:06,286 INFO L168 Benchmark]: Toolchain (without parser) took 4861.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 939.8 MB in the beginning and 943.6 MB in the end (delta: -3.8 MB). Peak memory consumption was 144.6 MB. Max. memory is 11.5 GB. [2019-12-07 12:59:06,286 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:59:06,286 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.7 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -140.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:59:06,286 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.14 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:59:06,287 INFO L168 Benchmark]: Boogie Preprocessor took 17.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:59:06,287 INFO L168 Benchmark]: RCFGBuilder took 197.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-12-07 12:59:06,287 INFO L168 Benchmark]: BuchiAutomizer took 4326.98 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.1 GB in the beginning and 943.6 MB in the end (delta: 108.2 MB). Peak memory consumption was 165.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:59:06,287 INFO L168 Benchmark]: Witness Printer took 2.74 ms. Allocated memory is still 1.2 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:59:06,289 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 285.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 90.7 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -140.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.14 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 197.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4326.98 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 57.7 MB). Free memory was 1.1 GB in the beginning and 943.6 MB in the end (delta: 108.2 MB). Peak memory consumption was 165.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.74 ms. Allocated memory is still 1.2 GB. Free memory is still 943.6 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (3 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[x_ref][x_ref] and consists of 6 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y_ref][y_ref] and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 21 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 25 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 35 SDtfs, 51 SDslu, 34 SDs, 0 SdLazy, 108 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital345 mio100 ax106 hnf99 lsp73 ukn83 mio100 lsp25 div100 bol100 ite100 ukn100 eq199 hnf87 smp100 dnf129 smp81 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 6 VariablesLoop: 5 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...