./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaA1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaA1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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 1a5ad591ce856c2d846b6a372eee9518c32c9e01 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:27:43,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:27:43,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:27:43,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:27:43,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:27:43,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:27:43,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:27:43,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:27:43,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:27:43,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:27:43,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:27:43,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:27:43,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:27:43,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:27:43,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:27:43,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:27:43,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:27:43,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:27:43,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:27:43,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:27:43,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:27:43,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:27:43,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:27:43,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:27:43,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:27:43,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:27:43,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:27:43,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:27:43,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:27:43,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:27:43,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:27:43,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:27:43,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:27:43,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:27:43,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:27:43,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:27:43,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:27:43,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:27:43,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:27:43,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:27:43,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:27:43,816 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-12-01 15:27:43,841 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:27:43,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:27:43,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:27:43,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:27:43,842 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:27:43,843 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:27:43,843 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:27:43,843 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:27:43,843 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:27:43,843 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:27:43,844 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:27:43,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:27:43,844 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:27:43,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:27:43,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:27:43,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:27:43,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:27:43,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:27:43,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:27:43,845 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:27:43,846 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:27:43,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:27:43,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:27:43,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:27:43,846 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:27:43,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:27:43,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:27:43,847 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:27:43,847 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:27:43,848 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:27:43,848 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a5ad591ce856c2d846b6a372eee9518c32c9e01 [2020-12-01 15:27:44,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:27:44,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:27:44,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:27:44,223 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:27:44,223 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:27:44,225 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/PastaA1.c [2020-12-01 15:27:44,316 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/bin/uautomizer/data/16b090ea9/a7496c9607a74546baeb02b426f9175e/FLAG1c0c9b9f1 [2020-12-01 15:27:45,007 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:27:45,007 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/sv-benchmarks/c/termination-restricted-15/PastaA1.c [2020-12-01 15:27:45,013 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/bin/uautomizer/data/16b090ea9/a7496c9607a74546baeb02b426f9175e/FLAG1c0c9b9f1 [2020-12-01 15:27:45,377 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/bin/uautomizer/data/16b090ea9/a7496c9607a74546baeb02b426f9175e [2020-12-01 15:27:45,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:27:45,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:27:45,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:27:45,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:27:45,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:27:45,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:27:45" (1/1) ... [2020-12-01 15:27:45,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b6485a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:27:45, skipping insertion in model container [2020-12-01 15:27:45,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:27:45" (1/1) ... [2020-12-01 15:27:45,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:27:45,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:27:45,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:27:45,601 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:27:45,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:27:45,682 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:27:45,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:27:45 WrapperNode [2020-12-01 15:27:45,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:27:45,686 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:27:45,686 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:27:45,686 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:27:45,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:27:45" (1/1) ... [2020-12-01 15:27:45,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:27:45" (1/1) ... [2020-12-01 15:27:45,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:27:45,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:27:45,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:27:45,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:27:45,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:27:45" (1/1) ... [2020-12-01 15:27:45,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:27:45" (1/1) ... [2020-12-01 15:27:45,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:27:45" (1/1) ... [2020-12-01 15:27:45,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:27:45" (1/1) ... [2020-12-01 15:27:45,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:27:45" (1/1) ... [2020-12-01 15:27:45,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:27:45" (1/1) ... [2020-12-01 15:27:45,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:27:45" (1/1) ... [2020-12-01 15:27:45,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:27:45,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:27:45,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:27:45,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:27:45,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:27:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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 [2020-12-01 15:27:45,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:27:45,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:27:45,988 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:27:45,988 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-01 15:27:45,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:27:45 BoogieIcfgContainer [2020-12-01 15:27:45,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:27:45,991 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:27:45,991 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:27:46,000 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:27:46,000 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:27:46,001 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:27:45" (1/3) ... [2020-12-01 15:27:46,002 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e6f46d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:27:46, skipping insertion in model container [2020-12-01 15:27:46,002 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:27:46,002 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:27:45" (2/3) ... [2020-12-01 15:27:46,002 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2e6f46d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:27:46, skipping insertion in model container [2020-12-01 15:27:46,002 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:27:46,003 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:27:45" (3/3) ... [2020-12-01 15:27:46,004 INFO L389 chiAutomizerObserver]: Analyzing ICFG PastaA1.c [2020-12-01 15:27:46,060 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:27:46,060 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:27:46,060 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:27:46,060 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:27:46,060 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:27:46,060 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:27:46,061 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:27:46,061 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:27:46,074 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-12-01 15:27:46,094 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-12-01 15:27:46,094 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:27:46,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:27:46,101 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-12-01 15:27:46,102 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 15:27:46,102 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:27:46,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-12-01 15:27:46,103 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-12-01 15:27:46,103 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:27:46,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:27:46,104 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-12-01 15:27:46,104 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-12-01 15:27:46,113 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L10-2true [2020-12-01 15:27:46,113 INFO L796 eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~x~0 > 0);main_~y~0 := 0; 3#L12-2true assume !(main_~y~0 < main_~x~0); 10#L12-3true main_~x~0 := main_~x~0 - 1; 8#L10-2true [2020-12-01 15:27:46,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:46,121 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-12-01 15:27:46,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:46,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717842143] [2020-12-01 15:27:46,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:46,221 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:46,225 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:46,240 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:46,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:46,242 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2020-12-01 15:27:46,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:46,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893969832] [2020-12-01 15:27:46,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:46,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:27:46,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893969832] [2020-12-01 15:27:46,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:27:46,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:27:46,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106087280] [2020-12-01 15:27:46,338 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-12-01 15:27:46,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:27:46,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:27:46,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:27:46,376 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2020-12-01 15:27:46,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:27:46,414 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2020-12-01 15:27:46,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:27:46,431 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2020-12-01 15:27:46,432 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-12-01 15:27:46,436 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 5 states and 6 transitions. [2020-12-01 15:27:46,437 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-12-01 15:27:46,437 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-12-01 15:27:46,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2020-12-01 15:27:46,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:27:46,438 INFO L692 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-12-01 15:27:46,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2020-12-01 15:27:46,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2020-12-01 15:27:46,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-12-01 15:27:46,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2020-12-01 15:27:46,468 INFO L715 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-12-01 15:27:46,468 INFO L595 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-12-01 15:27:46,469 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:27:46,469 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2020-12-01 15:27:46,469 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-12-01 15:27:46,469 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:27:46,470 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:27:46,470 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-12-01 15:27:46,470 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-12-01 15:27:46,470 INFO L794 eck$LassoCheckResult]: Stem: 28#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 29#L10-2 [2020-12-01 15:27:46,471 INFO L796 eck$LassoCheckResult]: Loop: 29#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 26#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 27#L12-2 assume !(main_~y~0 < main_~x~0); 30#L12-3 main_~x~0 := main_~x~0 - 1; 29#L10-2 [2020-12-01 15:27:46,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:46,472 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2020-12-01 15:27:46,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:46,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872017124] [2020-12-01 15:27:46,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:46,478 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:46,481 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:46,482 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:46,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:46,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1240240, now seen corresponding path program 1 times [2020-12-01 15:27:46,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:46,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968202864] [2020-12-01 15:27:46,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:46,495 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:46,502 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:46,504 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:46,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:46,505 INFO L82 PathProgramCache]: Analyzing trace with hash 29869391, now seen corresponding path program 1 times [2020-12-01 15:27:46,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:46,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036290025] [2020-12-01 15:27:46,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:46,532 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:46,540 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:46,542 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:46,668 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:27:46,669 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:27:46,669 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:27:46,669 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:27:46,670 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-12-01 15:27:46,670 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:46,670 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:27:46,670 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:27:46,670 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration2_Loop [2020-12-01 15:27:46,671 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:27:46,671 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:27:46,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:46,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:46,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:46,847 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:27:46,848 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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 [2020-12-01 15:27:46,865 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:27:46,868 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-12-01 15:27:46,896 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-12-01 15:27:46,896 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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) [2020-12-01 15:27:46,946 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:27:46,946 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:46,957 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-12-01 15:27:46,957 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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) [2020-12-01 15:27:47,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:27:47,005 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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 [2020-12-01 15:27:47,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 15:27:47,074 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-12-01 15:27:47,116 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-12-01 15:27:47,119 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:27:47,119 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:27:47,120 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:27:47,120 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:27:47,120 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:27:47,120 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:47,120 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:27:47,120 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:27:47,120 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration2_Loop [2020-12-01 15:27:47,120 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:27:47,120 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:27:47,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:47,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:47,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:47,257 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:27:47,262 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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 [2020-12-01 15:27:47,277 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:47,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:47,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:47,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:47,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:47,287 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:47,287 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:47,307 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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) [2020-12-01 15:27:47,353 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:47,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:47,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:47,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:47,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:47,359 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:47,359 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:47,379 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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 [2020-12-01 15:27:47,406 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:47,408 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:47,408 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:47,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:47,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:47,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:47,411 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:47,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:47,432 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:27:47,438 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 15:27:47,438 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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 [2020-12-01 15:27:47,493 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:27:47,494 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 15:27:47,494 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:27:47,495 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-12-01 15:27:47,525 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-12-01 15:27:47,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:47,561 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:27:47,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:47,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:27:47,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:47,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 15:27:47,635 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-12-01 15:27:47,636 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand 3 states. [2020-12-01 15:27:47,707 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 9 states and 12 transitions. Complement of second has 4 states. [2020-12-01 15:27:47,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-12-01 15:27:47,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 15:27:47,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-12-01 15:27:47,712 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 4 letters. [2020-12-01 15:27:47,715 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:47,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 4 letters. [2020-12-01 15:27:47,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:47,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 8 letters. [2020-12-01 15:27:47,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:47,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 12 transitions. [2020-12-01 15:27:47,720 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-12-01 15:27:47,721 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 11 transitions. [2020-12-01 15:27:47,721 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-12-01 15:27:47,721 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-12-01 15:27:47,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2020-12-01 15:27:47,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:27:47,723 INFO L692 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-12-01 15:27:47,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2020-12-01 15:27:47,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-12-01 15:27:47,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-12-01 15:27:47,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-12-01 15:27:47,728 INFO L715 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-12-01 15:27:47,728 INFO L595 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-12-01 15:27:47,728 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 15:27:47,729 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-12-01 15:27:47,729 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-12-01 15:27:47,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:27:47,730 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:27:47,730 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-12-01 15:27:47,730 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-12-01 15:27:47,730 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 79#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 75#L12-2 [2020-12-01 15:27:47,730 INFO L796 eck$LassoCheckResult]: Loop: 75#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 75#L12-2 [2020-12-01 15:27:47,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:47,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-12-01 15:27:47,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:47,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886257840] [2020-12-01 15:27:47,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:47,736 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:47,739 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:47,741 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:47,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:47,742 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-12-01 15:27:47,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:47,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389895794] [2020-12-01 15:27:47,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:47,747 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:47,751 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:47,752 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:47,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:47,753 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2020-12-01 15:27:47,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:47,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882406946] [2020-12-01 15:27:47,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:47,767 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:47,772 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:47,773 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:47,794 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:27:47,795 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:27:47,795 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:27:47,795 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:27:47,795 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-12-01 15:27:47,795 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:47,795 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:27:47,796 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:27:47,796 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration3_Loop [2020-12-01 15:27:47,796 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:27:47,796 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:27:47,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:47,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:47,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:47,863 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:27:47,863 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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) [2020-12-01 15:27:47,877 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:27:47,877 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:47,901 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-12-01 15:27:47,901 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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) [2020-12-01 15:27:47,945 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:27:47,945 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:47,969 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-12-01 15:27:47,969 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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) [2020-12-01 15:27:48,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:27:48,013 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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) [2020-12-01 15:27:48,085 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 15:27:48,085 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:48,305 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-12-01 15:27:48,307 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:27:48,307 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:27:48,307 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:27:48,307 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:27:48,307 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:27:48,308 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:48,308 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:27:48,308 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:27:48,308 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration3_Loop [2020-12-01 15:27:48,308 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:27:48,308 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:27:48,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:48,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:48,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:48,424 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:27:48,424 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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) [2020-12-01 15:27:48,431 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:48,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:48,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:48,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:48,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:48,437 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:48,437 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:48,468 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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 [2020-12-01 15:27:48,502 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:48,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:48,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:48,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:48,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:48,509 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:48,509 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:48,527 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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) [2020-12-01 15:27:48,578 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:48,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:48,580 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:48,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:48,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:48,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:48,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:48,583 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:48,596 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:27:48,603 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 15:27:48,603 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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 [2020-12-01 15:27:48,613 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:27:48,613 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 15:27:48,613 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:27:48,614 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-12-01 15:27:48,654 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-12-01 15:27:48,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:48,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:27:48,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:48,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:48,694 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:27:48,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:48,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:27:48,696 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-12-01 15:27:48,696 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-12-01 15:27:48,717 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 15 states and 20 transitions. Complement of second has 5 states. [2020-12-01 15:27:48,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-12-01 15:27:48,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-12-01 15:27:48,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-12-01 15:27:48,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2020-12-01 15:27:48,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:48,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2020-12-01 15:27:48,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:48,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2020-12-01 15:27:48,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:48,720 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2020-12-01 15:27:48,721 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-12-01 15:27:48,722 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 15 transitions. [2020-12-01 15:27:48,722 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-12-01 15:27:48,722 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-12-01 15:27:48,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2020-12-01 15:27:48,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:27:48,722 INFO L692 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-12-01 15:27:48,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2020-12-01 15:27:48,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. [2020-12-01 15:27:48,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-12-01 15:27:48,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2020-12-01 15:27:48,724 INFO L715 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-12-01 15:27:48,724 INFO L595 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-12-01 15:27:48,724 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-12-01 15:27:48,725 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2020-12-01 15:27:48,725 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-12-01 15:27:48,725 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:27:48,725 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:27:48,726 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2020-12-01 15:27:48,726 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-12-01 15:27:48,726 INFO L794 eck$LassoCheckResult]: Stem: 129#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 130#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 127#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 128#L12-2 assume !(main_~y~0 < main_~x~0); 132#L12-3 main_~x~0 := main_~x~0 - 1; 131#L10-2 assume !!(main_~x~0 > 0);main_~y~0 := 0; 126#L12-2 [2020-12-01 15:27:48,726 INFO L796 eck$LassoCheckResult]: Loop: 126#L12-2 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 1 + main_~y~0; 126#L12-2 [2020-12-01 15:27:48,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:48,727 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 2 times [2020-12-01 15:27:48,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:48,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175619799] [2020-12-01 15:27:48,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:48,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:27:48,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175619799] [2020-12-01 15:27:48,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394154166] [2020-12-01 15:27:48,782 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2020-12-01 15:27:48,819 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-01 15:27:48,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:27:48,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:27:48,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:48,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:27:48,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:27:48,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-12-01 15:27:48,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137395765] [2020-12-01 15:27:48,894 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:27:48,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:48,895 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2020-12-01 15:27:48,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:48,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898684293] [2020-12-01 15:27:48,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:48,910 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:48,916 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:48,917 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:48,933 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:27:48,934 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:27:48,934 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:27:48,934 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:27:48,934 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-12-01 15:27:48,934 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:48,935 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:27:48,935 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:27:48,936 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration4_Loop [2020-12-01 15:27:48,936 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:27:48,937 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:27:48,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:48,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:48,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:49,002 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:27:49,002 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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 [2020-12-01 15:27:49,020 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:27:49,020 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-12-01 15:27:49,037 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-12-01 15:27:49,037 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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) [2020-12-01 15:27:49,090 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:27:49,091 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:49,105 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-12-01 15:27:49,105 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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) [2020-12-01 15:27:49,151 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:27:49,151 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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 [2020-12-01 15:27:49,204 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 15:27:49,204 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-12-01 15:27:49,421 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-12-01 15:27:49,423 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:27:49,423 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:27:49,424 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:27:49,424 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:27:49,424 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:27:49,424 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:49,424 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:27:49,424 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:27:49,424 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA1.c_Iteration4_Loop [2020-12-01 15:27:49,424 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:27:49,424 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:27:49,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:49,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:49,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:49,505 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:27:49,505 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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) [2020-12-01 15:27:49,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:49,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:49,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:49,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:49,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:49,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:49,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:49,536 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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 [2020-12-01 15:27:49,577 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:49,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:49,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:49,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:49,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:49,581 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:49,581 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:49,602 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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 [2020-12-01 15:27:49,624 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:49,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:49,626 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:49,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:49,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:49,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:49,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:49,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:49,667 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:27:49,673 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-12-01 15:27:49,673 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c14fa2fa-e77e-42be-9472-56ea6a02d4bd/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) [2020-12-01 15:27:49,697 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:27:49,697 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 15:27:49,697 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:27:49,697 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:49,719 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-12-01 15:27:49,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:49,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:27:49,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:49,787 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:27:49,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:49,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:27:49,788 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-12-01 15:27:49,788 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-12-01 15:27:49,805 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 13 states and 17 transitions. Complement of second has 5 states. [2020-12-01 15:27:49,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-12-01 15:27:49,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-12-01 15:27:49,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-12-01 15:27:49,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2020-12-01 15:27:49,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:49,806 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:27:49,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:49,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:49,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:27:49,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:49,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:49,851 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:27:49,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:49,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:27:49,853 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2020-12-01 15:27:49,853 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-12-01 15:27:49,872 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 13 states and 17 transitions. Complement of second has 5 states. [2020-12-01 15:27:49,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-12-01 15:27:49,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-12-01 15:27:49,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-12-01 15:27:49,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2020-12-01 15:27:49,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:49,876 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:27:49,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:49,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:27:49,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:49,926 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:27:49,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:49,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:27:49,927 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-12-01 15:27:49,927 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-12-01 15:27:49,952 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 10 states and 12 transitions. Complement of second has 4 states. [2020-12-01 15:27:49,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-12-01 15:27:49,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-12-01 15:27:49,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-12-01 15:27:49,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2020-12-01 15:27:49,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:49,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2020-12-01 15:27:49,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:49,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2020-12-01 15:27:49,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:49,955 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2020-12-01 15:27:49,957 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:27:49,958 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2020-12-01 15:27:49,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 15:27:49,958 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 15:27:49,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 15:27:49,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:27:49,958 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:27:49,958 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:27:49,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:27:49,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:27:49,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:27:49,960 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 6 states. [2020-12-01 15:27:49,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:27:49,960 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-12-01 15:27:49,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:27:49,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-12-01 15:27:49,961 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:27:49,961 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:27:49,961 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 15:27:49,961 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 15:27:49,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 15:27:49,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:27:49,962 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:27:49,962 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:27:49,962 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:27:49,962 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-12-01 15:27:49,962 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:27:49,962 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:27:49,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-12-01 15:27:49,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:27:49 BoogieIcfgContainer [2020-12-01 15:27:49,969 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:27:49,970 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:27:49,970 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:27:49,970 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:27:49,970 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:27:45" (3/4) ... [2020-12-01 15:27:49,974 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:27:49,974 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:27:49,976 INFO L168 Benchmark]: Toolchain (without parser) took 4593.24 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 78.8 MB in the beginning and 83.9 MB in the end (delta: -5.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:49,977 INFO L168 Benchmark]: CDTParser took 1.64 ms. Allocated memory is still 83.9 MB. Free memory was 41.4 MB in the beginning and 41.4 MB in the end (delta: 44.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:27:49,978 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.97 ms. Allocated memory is still 107.0 MB. Free memory was 78.8 MB in the beginning and 85.8 MB in the end (delta: -6.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:49,979 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.75 ms. Allocated memory is still 107.0 MB. Free memory was 85.8 MB in the beginning and 84.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:27:49,984 INFO L168 Benchmark]: Boogie Preprocessor took 24.59 ms. Allocated memory is still 107.0 MB. Free memory was 84.4 MB in the beginning and 83.7 MB in the end (delta: 675.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:27:49,985 INFO L168 Benchmark]: RCFGBuilder took 245.19 ms. Allocated memory is still 107.0 MB. Free memory was 83.7 MB in the beginning and 75.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:49,985 INFO L168 Benchmark]: BuchiAutomizer took 3978.15 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 75.3 MB in the beginning and 83.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:49,986 INFO L168 Benchmark]: Witness Printer took 4.23 ms. Allocated memory is still 130.0 MB. Free memory was 83.9 MB in the beginning and 83.9 MB in the end (delta: 59.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:27:49,998 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.64 ms. Allocated memory is still 83.9 MB. Free memory was 41.4 MB in the beginning and 41.4 MB in the end (delta: 44.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 300.97 ms. Allocated memory is still 107.0 MB. Free memory was 78.8 MB in the beginning and 85.8 MB in the end (delta: -6.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.75 ms. Allocated memory is still 107.0 MB. Free memory was 85.8 MB in the beginning and 84.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.59 ms. Allocated memory is still 107.0 MB. Free memory was 84.4 MB in the beginning and 83.7 MB in the end (delta: 675.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 245.19 ms. Allocated memory is still 107.0 MB. Free memory was 83.7 MB in the beginning and 75.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3978.15 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 75.3 MB in the beginning and 83.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.23 ms. Allocated memory is still 130.0 MB. Free memory was 83.9 MB in the beginning and 83.9 MB in the end (delta: 59.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 3 locations. One deterministic module has affine ranking function x + -1 * y and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 20 SDtfs, 14 SDslu, 3 SDs, 0 SdLazy, 42 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax202 hnf97 lsp49 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp95 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...