./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrcat_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrcat_reverse_alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/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 79c8f3e75568b724086e7997d923ad8ab07e6657 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:11:39,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:11:39,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:11:39,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:11:39,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:11:39,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:11:39,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:11:39,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:11:39,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:11:39,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:11:39,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:11:39,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:11:39,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:11:39,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:11:39,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:11:39,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:11:39,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:11:39,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:11:39,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:11:39,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:11:39,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:11:39,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:11:39,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:11:39,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:11:39,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:11:39,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:11:39,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:11:39,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:11:39,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:11:39,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:11:39,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:11:39,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:11:39,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:11:39,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:11:39,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:11:39,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:11:39,712 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:11:39,712 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:11:39,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:11:39,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:11:39,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:11:39,714 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 12:11:39,727 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:11:39,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:11:39,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:11:39,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:11:39,728 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:11:39,728 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 12:11:39,728 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 12:11:39,728 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 12:11:39,728 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 12:11:39,728 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 12:11:39,729 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 12:11:39,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:11:39,729 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 12:11:39,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:11:39,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:11:39,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 12:11:39,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 12:11:39,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 12:11:39,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:11:39,730 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 12:11:39,730 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:11:39,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 12:11:39,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:11:39,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:11:39,730 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 12:11:39,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:11:39,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:11:39,731 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:11:39,731 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 12:11:39,731 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 12:11:39,732 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/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 -> 79c8f3e75568b724086e7997d923ad8ab07e6657 [2019-12-07 12:11:39,830 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:11:39,840 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:11:39,843 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:11:39,844 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:11:39,844 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:11:39,845 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrcat_reverse_alloca.i [2019-12-07 12:11:39,890 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/data/2c3d770c3/f6bd2878a7f443919d5ce2051ab1c469/FLAG997d52c09 [2019-12-07 12:11:40,234 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:11:40,234 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/sv-benchmarks/c/termination-15/cstrcat_reverse_alloca.i [2019-12-07 12:11:40,241 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/data/2c3d770c3/f6bd2878a7f443919d5ce2051ab1c469/FLAG997d52c09 [2019-12-07 12:11:40,249 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/data/2c3d770c3/f6bd2878a7f443919d5ce2051ab1c469 [2019-12-07 12:11:40,251 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:11:40,252 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:11:40,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:11:40,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:11:40,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:11:40,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:11:40" (1/1) ... [2019-12-07 12:11:40,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c131985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:40, skipping insertion in model container [2019-12-07 12:11:40,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:11:40" (1/1) ... [2019-12-07 12:11:40,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:11:40,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:11:40,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:11:40,508 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:11:40,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:11:40,577 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:11:40,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:40 WrapperNode [2019-12-07 12:11:40,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:11:40,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:11:40,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:11:40,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:11:40,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:40" (1/1) ... [2019-12-07 12:11:40,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:40" (1/1) ... [2019-12-07 12:11:40,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:11:40,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:11:40,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:11:40,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:11:40,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:40" (1/1) ... [2019-12-07 12:11:40,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:40" (1/1) ... [2019-12-07 12:11:40,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:40" (1/1) ... [2019-12-07 12:11:40,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:40" (1/1) ... [2019-12-07 12:11:40,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:40" (1/1) ... [2019-12-07 12:11:40,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:40" (1/1) ... [2019-12-07 12:11:40,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:40" (1/1) ... [2019-12-07 12:11:40,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:11:40,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:11:40,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:11:40,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:11:40,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:11:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 12:11:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 12:11:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:11:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:11:40,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:11:40,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:11:40,808 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:11:40,808 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 12:11:40,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:11:40 BoogieIcfgContainer [2019-12-07 12:11:40,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:11:40,810 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 12:11:40,810 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 12:11:40,812 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 12:11:40,812 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:11:40,813 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 12:11:40" (1/3) ... [2019-12-07 12:11:40,813 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f2a43c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:11:40, skipping insertion in model container [2019-12-07 12:11:40,813 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:11:40,813 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:11:40" (2/3) ... [2019-12-07 12:11:40,814 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f2a43c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:11:40, skipping insertion in model container [2019-12-07 12:11:40,814 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:11:40,814 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:11:40" (3/3) ... [2019-12-07 12:11:40,815 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrcat_reverse_alloca.i [2019-12-07 12:11:40,842 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 12:11:40,842 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 12:11:40,842 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 12:11:40,842 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:11:40,842 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:11:40,842 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 12:11:40,842 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:11:40,842 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 12:11:40,851 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-12-07 12:11:40,866 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 12:11:40,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:11:40,866 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:11:40,870 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 12:11:40,870 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 12:11:40,870 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 12:11:40,871 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-12-07 12:11:40,872 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 12:11:40,872 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:11:40,872 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:11:40,872 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 12:11:40,872 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 12:11:40,877 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet210, main_#t~nondet211, main_#t~nondet212, main_#t~malloc213.base, main_#t~malloc213.offset, main_#t~malloc214.base, main_#t~malloc214.offset, main_#t~ret215.base, main_#t~ret215.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet210;havoc main_#t~nondet210;main_~length2~0 := main_#t~nondet211;havoc main_#t~nondet211;main_~length3~0 := main_#t~nondet212;havoc main_#t~nondet212; 3#L377true assume !(main_~length1~0 < 1); 6#L377-2true assume !(main_~length2~0 < 2); 15#L380-1true assume !(main_~length3~0 < 1); 10#L383-1true assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc213.base, main_#t~malloc213.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc213.base, main_#t~malloc213.offset;call main_#t~malloc214.base, main_#t~malloc214.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc214.base, main_#t~malloc214.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset, 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - main_~length3~0), 1);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrcat_#in~s1.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.base, cstrcat_#in~s2.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~post206.base, cstrcat_#t~post206.offset, cstrcat_#t~mem205, cstrcat_#t~post207.base, cstrcat_#t~post207.offset, cstrcat_#t~post208.base, cstrcat_#t~post208.offset, cstrcat_#t~mem209, cstrcat_~s1.base, cstrcat_~s1.offset, cstrcat_~s2.base, cstrcat_~s2.offset, cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s1.base, cstrcat_~s1.offset := cstrcat_#in~s1.base, cstrcat_#in~s1.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#in~s2.base, cstrcat_#in~s2.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_~s1.base, cstrcat_~s1.offset; 7#L367-3true [2019-12-07 12:11:40,877 INFO L796 eck$LassoCheckResult]: Loop: 7#L367-3true call cstrcat_#t~mem205 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 4#L367-1true assume !!(0 != cstrcat_#t~mem205);havoc cstrcat_#t~mem205;cstrcat_#t~post206.base, cstrcat_#t~post206.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post206.base, cstrcat_#t~post206.offset - 1;havoc cstrcat_#t~post206.base, cstrcat_#t~post206.offset; 7#L367-3true [2019-12-07 12:11:40,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:11:40,881 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2019-12-07 12:11:40,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:11:40,886 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307449349] [2019-12-07 12:11:40,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:11:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:11:40,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:11:40,996 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:11:40,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:11:40,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2019-12-07 12:11:40,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:11:40,997 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537212803] [2019-12-07 12:11:40,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:11:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:11:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:11:41,004 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:11:41,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:11:41,006 INFO L82 PathProgramCache]: Analyzing trace with hash 180553748, now seen corresponding path program 1 times [2019-12-07 12:11:41,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:11:41,006 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670114957] [2019-12-07 12:11:41,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:11:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:11:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:11:41,044 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:11:41,355 WARN L192 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 99 [2019-12-07 12:11:41,448 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 12:11:41,448 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 12:11:41,449 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 12:11:41,449 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 12:11:41,449 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 12:11:41,449 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:11:41,449 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 12:11:41,449 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 12:11:41,449 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcat_reverse_alloca.i_Iteration1_Lasso [2019-12-07 12:11:41,449 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 12:11:41,449 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 12:11:41,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:11:41,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:11:41,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:11:41,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:11:41,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:11:41,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:11:41,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:11:41,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:11:41,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:11:41,665 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2019-12-07 12:11:41,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:11:41,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:11:41,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:11:41,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:11:41,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:11:41,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:11:41,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:11:41,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:11:41,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:11:41,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 12:11:42,019 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 12:11:42,023 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:11:42,027 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:11:42,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:11:42,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:11:42,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:11:42,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:11:42,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:11:42,031 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:11:42,031 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:11:42,033 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:11:42,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:11:42,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:11:42,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:11:42,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:11:42,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:11:42,042 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:11:42,042 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:11:42,045 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:11:42,049 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:11:42,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:11:42,050 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:11:42,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:11:42,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:11:42,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:11:42,051 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:11:42,052 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:11:42,053 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:11:42,056 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:11:42,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:11:42,058 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:11:42,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:11:42,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:11:42,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:11:42,058 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:11:42,058 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:11:42,060 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:11:42,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:11:42,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:11:42,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:11:42,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:11:42,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:11:42,066 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:11:42,067 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:11:42,069 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:11:42,073 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:11:42,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:11:42,075 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:11:42,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:11:42,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:11:42,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:11:42,075 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:11:42,075 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:11:42,077 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:11:42,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:11:42,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:11:42,082 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:11:42,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:11:42,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:11:42,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:11:42,083 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:11:42,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:11:42,084 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:11:42,088 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:11:42,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:11:42,090 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 12:11:42,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:11:42,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:11:42,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:11:42,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 12:11:42,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 12:11:42,092 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:11:42,096 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:11:42,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:11:42,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:11:42,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:11:42,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:11:42,100 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:11:42,100 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:11:42,103 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:11:42,107 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:11:42,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:11:42,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:11:42,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:11:42,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:11:42,111 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:11:42,111 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:11:42,114 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:11:42,119 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:11:42,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:11:42,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:11:42,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:11:42,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:11:42,123 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:11:42,123 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:11:42,128 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:11:42,133 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:11:42,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:11:42,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:11:42,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:11:42,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:11:42,136 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:11:42,136 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:11:42,139 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:11:42,143 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:11:42,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:11:42,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:11:42,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:11:42,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:11:42,150 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:11:42,150 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:11:42,158 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:11:42,163 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 12:11:42,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 12:11:42,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 12:11:42,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 12:11:42,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 12:11:42,173 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 12:11:42,173 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 12:11:42,188 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 12:11:42,212 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-12-07 12:11:42,212 INFO L444 ModelExtractionUtils]: 37 out of 49 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_56e568a1-24a8-4012-a4a8-57f76d0bc878/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:11:42,227 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 12:11:42,229 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 12:11:42,229 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 12:11:42,230 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrcat_~s~0.base)_1, ULTIMATE.start_cstrcat_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_cstrcat_~s~0.base)_1 + 2*ULTIMATE.start_cstrcat_~s~0.offset Supporting invariants [] [2019-12-07 12:11:42,252 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2019-12-07 12:11:42,259 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 12:11:42,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:11:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:11:42,292 INFO L264 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 12:11:42,293 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:11:42,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:11:42,303 WARN L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 12:11:42,303 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:11:42,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:11:42,325 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 [2019-12-07 12:11:42,326 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2019-12-07 12:11:42,359 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 35 states and 45 transitions. Complement of second has 7 states. [2019-12-07 12:11:42,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 12:11:42,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 12:11:42,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2019-12-07 12:11:42,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 6 letters. Loop has 2 letters. [2019-12-07 12:11:42,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:11:42,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 8 letters. Loop has 2 letters. [2019-12-07 12:11:42,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:11:42,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 6 letters. Loop has 4 letters. [2019-12-07 12:11:42,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 12:11:42,365 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 45 transitions. [2019-12-07 12:11:42,367 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 12:11:42,369 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2019-12-07 12:11:42,370 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 12:11:42,370 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 12:11:42,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 12:11:42,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:11:42,370 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:11:42,371 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:11:42,371 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:11:42,371 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 12:11:42,371 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 12:11:42,371 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 12:11:42,371 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 12:11:42,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 12:11:42 BoogieIcfgContainer [2019-12-07 12:11:42,375 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 12:11:42,375 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:11:42,375 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:11:42,375 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:11:42,376 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:11:40" (3/4) ... [2019-12-07 12:11:42,378 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:11:42,378 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:11:42,379 INFO L168 Benchmark]: Toolchain (without parser) took 2127.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 943.5 MB in the beginning and 982.2 MB in the end (delta: -38.7 MB). Peak memory consumption was 62.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:11:42,380 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:11:42,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -140.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:11:42,381 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:11:42,381 INFO L168 Benchmark]: Boogie Preprocessor took 16.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:11:42,382 INFO L168 Benchmark]: RCFGBuilder took 185.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:11:42,382 INFO L168 Benchmark]: BuchiAutomizer took 1565.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 982.2 MB in the end (delta: 69.4 MB). Peak memory consumption was 69.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:11:42,383 INFO L168 Benchmark]: Witness Printer took 2.78 ms. Allocated memory is still 1.1 GB. Free memory is still 982.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:11:42,386 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 325.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -140.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 185.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1565.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 982.2 MB in the end (delta: 69.4 MB). Peak memory consumption was 69.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.78 ms. Allocated memory is still 1.1 GB. Free memory is still 982.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[s] + 2 * s and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 19 SDtfs, 18 SDslu, 13 SDs, 0 SdLazy, 4 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital205 mio100 ax100 hnf99 lsp97 ukn74 mio100 lsp54 div100 bol100 ite100 ukn100 eq187 hnf89 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...