./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/afterrec-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_927edc8c-621d-41ab-b143-3150520f834c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_927edc8c-621d-41ab-b143-3150520f834c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_927edc8c-621d-41ab-b143-3150520f834c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_927edc8c-621d-41ab-b143-3150520f834c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_927edc8c-621d-41ab-b143-3150520f834c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_927edc8c-621d-41ab-b143-3150520f834c/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 32bit --witnessprinter.graph.data.programhash e8f83f4c04fbac90273b8f8e733ac05d1463068f ............................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 10:51:02,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:51:02,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:51:02,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:51:02,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:51:02,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:51:02,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:51:02,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:51:02,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:51:02,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:51:02,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:51:02,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:51:02,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:51:02,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:51:02,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:51:02,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:51:02,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:51:02,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:51:02,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:51:02,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:51:02,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:51:02,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:51:02,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:51:02,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:51:02,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:51:02,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:51:02,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:51:02,835 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:51:02,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:51:02,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:51:02,837 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:51:02,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:51:02,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:51:02,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:51:02,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:51:02,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:51:02,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:51:02,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:51:02,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:51:02,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:51:02,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:51:02,844 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_927edc8c-621d-41ab-b143-3150520f834c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 10:51:02,860 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:51:02,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:51:02,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:51:02,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:51:02,861 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:51:02,861 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 10:51:02,862 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 10:51:02,862 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 10:51:02,862 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 10:51:02,862 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 10:51:02,862 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 10:51:02,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:51:02,863 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:51:02,863 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 10:51:02,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:51:02,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:51:02,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:51:02,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 10:51:02,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 10:51:02,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 10:51:02,864 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:51:02,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:51:02,865 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 10:51:02,865 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:51:02,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 10:51:02,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:51:02,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:51:02,866 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 10:51:02,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:51:02,866 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:51:02,866 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 10:51:02,867 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 10:51:02,867 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_927edc8c-621d-41ab-b143-3150520f834c/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8f83f4c04fbac90273b8f8e733ac05d1463068f [2019-11-20 10:51:03,008 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:51:03,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:51:03,022 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:51:03,023 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:51:03,023 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:51:03,024 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_927edc8c-621d-41ab-b143-3150520f834c/bin/uautomizer/../../sv-benchmarks/c/recursive-simple/afterrec-1.c [2019-11-20 10:51:03,074 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_927edc8c-621d-41ab-b143-3150520f834c/bin/uautomizer/data/5aa647b48/4b8e6ebd008c4da6a2108c59254008a8/FLAG62963b95d [2019-11-20 10:51:03,452 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:51:03,453 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_927edc8c-621d-41ab-b143-3150520f834c/sv-benchmarks/c/recursive-simple/afterrec-1.c [2019-11-20 10:51:03,458 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_927edc8c-621d-41ab-b143-3150520f834c/bin/uautomizer/data/5aa647b48/4b8e6ebd008c4da6a2108c59254008a8/FLAG62963b95d [2019-11-20 10:51:03,474 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_927edc8c-621d-41ab-b143-3150520f834c/bin/uautomizer/data/5aa647b48/4b8e6ebd008c4da6a2108c59254008a8 [2019-11-20 10:51:03,476 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:51:03,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:51:03,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:51:03,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:51:03,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:51:03,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:51:03" (1/1) ... [2019-11-20 10:51:03,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74b77f72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:03, skipping insertion in model container [2019-11-20 10:51:03,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:51:03" (1/1) ... [2019-11-20 10:51:03,492 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:51:03,509 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:51:03,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:51:03,702 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:51:03,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:51:03,802 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:51:03,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:03 WrapperNode [2019-11-20 10:51:03,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:51:03,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:51:03,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:51:03,804 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:51:03,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:03" (1/1) ... [2019-11-20 10:51:03,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:03" (1/1) ... [2019-11-20 10:51:03,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:51:03,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:51:03,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:51:03,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:51:03,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:03" (1/1) ... [2019-11-20 10:51:03,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:03" (1/1) ... [2019-11-20 10:51:03,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:03" (1/1) ... [2019-11-20 10:51:03,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:03" (1/1) ... [2019-11-20 10:51:03,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:03" (1/1) ... [2019-11-20 10:51:03,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:03" (1/1) ... [2019-11-20 10:51:03,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:03" (1/1) ... [2019-11-20 10:51:03,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:51:03,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:51:03,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:51:03,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:51:03,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_927edc8c-621d-41ab-b143-3150520f834c/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 [2019-11-20 10:51:03,908 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 10:51:03,908 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 10:51:03,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:51:03,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:51:04,013 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:51:04,013 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 10:51:04,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:51:04 BoogieIcfgContainer [2019-11-20 10:51:04,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:51:04,015 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 10:51:04,015 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 10:51:04,018 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 10:51:04,019 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:51:04,019 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:51:03" (1/3) ... [2019-11-20 10:51:04,020 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4a1dfa7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:51:04, skipping insertion in model container [2019-11-20 10:51:04,020 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:51:04,020 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:51:03" (2/3) ... [2019-11-20 10:51:04,021 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4a1dfa7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:51:04, skipping insertion in model container [2019-11-20 10:51:04,021 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:51:04,021 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:51:04" (3/3) ... [2019-11-20 10:51:04,022 INFO L371 chiAutomizerObserver]: Analyzing ICFG afterrec-1.c [2019-11-20 10:51:04,065 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 10:51:04,065 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 10:51:04,065 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 10:51:04,066 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:51:04,066 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:51:04,066 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 10:51:04,066 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:51:04,066 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 10:51:04,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-20 10:51:04,102 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 10:51:04,102 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:51:04,102 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:51:04,107 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 10:51:04,107 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 10:51:04,108 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 10:51:04,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-20 10:51:04,109 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 10:51:04,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:51:04,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:51:04,110 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 10:51:04,110 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 10:51:04,115 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res; 6#L11true call f(4);< 8#fENTRYtrue [2019-11-20 10:51:04,115 INFO L796 eck$LassoCheckResult]: Loop: 8#fENTRYtrue ~n := #in~n; 7#L4true assume !(~n < 3);#t~post0 := ~n;~n := #t~post0 - 1;havoc #t~post0; 13#L6true call f(~n);< 8#fENTRYtrue [2019-11-20 10:51:04,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:51:04,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2019-11-20 10:51:04,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:51:04,127 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524158010] [2019-11-20 10:51:04,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:51:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:51:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:51:04,196 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:51:04,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:51:04,198 INFO L82 PathProgramCache]: Analyzing trace with hash 29930, now seen corresponding path program 1 times [2019-11-20 10:51:04,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:51:04,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642488435] [2019-11-20 10:51:04,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:51:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:51:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:51:04,214 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:51:04,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:51:04,216 INFO L82 PathProgramCache]: Analyzing trace with hash 38370947, now seen corresponding path program 1 times [2019-11-20 10:51:04,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:51:04,216 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200876957] [2019-11-20 10:51:04,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:51:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:51:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:51:04,229 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:51:04,323 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:51:04,324 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:51:04,324 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:51:04,334 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:51:04,334 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 10:51:04,334 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:51:04,334 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:51:04,335 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:51:04,335 INFO L133 ssoRankerPreferences]: Filename of dumped script: afterrec-1.c_Iteration1_Loop [2019-11-20 10:51:04,335 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:51:04,335 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:51:04,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:51:04,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:51:04,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:51:04,455 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:51:04,456 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_927edc8c-621d-41ab-b143-3150520f834c/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 [2019-11-20 10:51:04,470 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 10:51:04,470 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_927edc8c-621d-41ab-b143-3150520f834c/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 [2019-11-20 10:51:04,481 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 10:51:04,481 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 10:51:04,494 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 10:51:04,495 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:51:04,496 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:51:04,496 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:51:04,496 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:51:04,496 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:51:04,496 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:51:04,496 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:51:04,496 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:51:04,496 INFO L133 ssoRankerPreferences]: Filename of dumped script: afterrec-1.c_Iteration1_Loop [2019-11-20 10:51:04,496 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:51:04,497 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:51:04,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:51:04,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:51:04,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 10:51:04,555 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:51:04,559 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_927edc8c-621d-41ab-b143-3150520f834c/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 [2019-11-20 10:51:04,570 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 [2019-11-20 10:51:04,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:51:04,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:51:04,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:51:04,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:51:04,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:51:04,575 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:51:04,575 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:51:04,586 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_927edc8c-621d-41ab-b143-3150520f834c/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) [2019-11-20 10:51:04,603 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 [2019-11-20 10:51:04,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:51:04,605 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:51:04,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:51:04,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:51:04,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:51:04,609 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:51:04,609 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:51:04,612 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:51:04,620 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 10:51:04,620 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_927edc8c-621d-41ab-b143-3150520f834c/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) [2019-11-20 10:51:04,631 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 10:51:04,631 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 10:51:04,631 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:51:04,632 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(f_#in~n) = 1*f_#in~n Supporting invariants [] Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:51:04,637 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 10:51:04,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:51:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:51:04,701 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 10:51:04,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:51:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:51:04,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 10:51:04,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:51:04,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:51:04,792 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-20 10:51:04,793 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 4 states. [2019-11-20 10:51:04,919 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 4 states. Result 36 states and 38 transitions. Complement of second has 19 states. [2019-11-20 10:51:04,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2019-11-20 10:51:04,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 10:51:04,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 15 transitions. [2019-11-20 10:51:04,923 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 15 transitions. Stem has 2 letters. Loop has 3 letters. [2019-11-20 10:51:04,924 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:51:04,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 15 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-20 10:51:04,924 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:51:04,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 15 transitions. Stem has 2 letters. Loop has 6 letters. [2019-11-20 10:51:04,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:51:04,925 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 38 transitions. [2019-11-20 10:51:04,929 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 10:51:04,932 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 0 states and 0 transitions. [2019-11-20 10:51:04,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 10:51:04,933 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 10:51:04,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 10:51:04,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 10:51:04,934 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:51:04,935 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:51:04,935 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:51:04,935 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 10:51:04,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 10:51:04,935 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 10:51:04,935 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 10:51:04,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:51:04 BoogieIcfgContainer [2019-11-20 10:51:04,942 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 10:51:04,942 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:51:04,942 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:51:04,943 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:51:04,943 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:51:04" (3/4) ... [2019-11-20 10:51:04,946 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 10:51:04,947 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:51:04,949 INFO L168 Benchmark]: Toolchain (without parser) took 1470.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -75.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:51:04,949 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:51:04,950 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -172.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-11-20 10:51:04,951 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:51:04,951 INFO L168 Benchmark]: Boogie Preprocessor took 15.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:51:04,952 INFO L168 Benchmark]: RCFGBuilder took 166.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-20 10:51:04,952 INFO L168 Benchmark]: BuchiAutomizer took 926.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.2 MB). Peak memory consumption was 79.2 MB. Max. memory is 11.5 GB. [2019-11-20 10:51:04,953 INFO L168 Benchmark]: Witness Printer took 4.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:51:04,956 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 324.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -172.0 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 166.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 926.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.2 MB). Peak memory consumption was 79.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * 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 \old(n) and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 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: 4 SDtfs, 6 SDslu, 2 SDs, 0 SdLazy, 16 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 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...