./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Bangalore_v3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 26d01a9c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/Bangalore_v3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c08750206e788fdccf882da5ddba152c998ecd3b834a465ead98c2064ed0d528 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 07:56:52,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 07:56:52,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 07:56:52,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 07:56:52,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 07:56:52,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 07:56:52,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 07:56:52,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 07:56:52,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 07:56:52,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 07:56:52,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 07:56:52,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 07:56:52,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 07:56:52,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 07:56:52,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 07:56:52,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 07:56:52,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 07:56:52,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 07:56:52,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 07:56:52,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 07:56:52,958 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 07:56:52,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 07:56:52,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 07:56:52,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 07:56:52,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 07:56:52,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 07:56:52,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 07:56:52,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 07:56:52,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 07:56:52,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 07:56:52,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 07:56:52,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 07:56:52,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 07:56:52,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 07:56:52,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 07:56:52,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 07:56:52,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 07:56:52,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 07:56:52,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 07:56:52,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 07:56:52,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 07:56:52,977 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-18 07:56:53,001 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 07:56:53,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 07:56:53,001 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 07:56:53,002 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 07:56:53,002 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 07:56:53,002 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 07:56:53,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 07:56:53,003 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 07:56:53,003 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 07:56:53,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 07:56:53,003 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 07:56:53,004 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 07:56:53,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 07:56:53,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 07:56:53,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 07:56:53,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 07:56:53,004 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 07:56:53,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 07:56:53,004 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 07:56:53,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 07:56:53,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 07:56:53,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 07:56:53,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 07:56:53,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 07:56:53,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 07:56:53,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 07:56:53,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 07:56:53,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 07:56:53,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 07:56:53,005 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 07:56:53,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 07:56:53,006 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 07:56:53,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 07:56:53,006 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 07:56:53,006 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c08750206e788fdccf882da5ddba152c998ecd3b834a465ead98c2064ed0d528 [2023-02-18 07:56:53,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 07:56:53,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 07:56:53,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 07:56:53,238 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 07:56:53,239 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 07:56:53,239 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Bangalore_v3.c [2023-02-18 07:56:54,242 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 07:56:54,391 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 07:56:54,391 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Bangalore_v3.c [2023-02-18 07:56:54,395 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a4dead36/b5e36d38759b467ab52b14dffbaf68e1/FLAGe48449071 [2023-02-18 07:56:54,409 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a4dead36/b5e36d38759b467ab52b14dffbaf68e1 [2023-02-18 07:56:54,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 07:56:54,411 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 07:56:54,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 07:56:54,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 07:56:54,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 07:56:54,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 07:56:54" (1/1) ... [2023-02-18 07:56:54,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b9bbde6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:54, skipping insertion in model container [2023-02-18 07:56:54,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 07:56:54" (1/1) ... [2023-02-18 07:56:54,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 07:56:54,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 07:56:54,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 07:56:54,543 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 07:56:54,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 07:56:54,558 INFO L208 MainTranslator]: Completed translation [2023-02-18 07:56:54,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:54 WrapperNode [2023-02-18 07:56:54,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 07:56:54,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 07:56:54,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 07:56:54,560 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 07:56:54,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:54" (1/1) ... [2023-02-18 07:56:54,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:54" (1/1) ... [2023-02-18 07:56:54,579 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2023-02-18 07:56:54,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 07:56:54,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 07:56:54,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 07:56:54,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 07:56:54,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:54" (1/1) ... [2023-02-18 07:56:54,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:54" (1/1) ... [2023-02-18 07:56:54,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:54" (1/1) ... [2023-02-18 07:56:54,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:54" (1/1) ... [2023-02-18 07:56:54,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:54" (1/1) ... [2023-02-18 07:56:54,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:54" (1/1) ... [2023-02-18 07:56:54,594 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:54" (1/1) ... [2023-02-18 07:56:54,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:54" (1/1) ... [2023-02-18 07:56:54,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 07:56:54,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 07:56:54,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 07:56:54,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 07:56:54,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:54" (1/1) ... [2023-02-18 07:56:54,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 07:56:54,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:56:54,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-18 07:56:54,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-18 07:56:54,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 07:56:54,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 07:56:54,697 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 07:56:54,698 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 07:56:54,773 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 07:56:54,779 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 07:56:54,779 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 07:56:54,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:56:54 BoogieIcfgContainer [2023-02-18 07:56:54,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 07:56:54,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 07:56:54,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 07:56:54,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 07:56:54,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 07:56:54" (1/3) ... [2023-02-18 07:56:54,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44bbf0b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 07:56:54, skipping insertion in model container [2023-02-18 07:56:54,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:56:54" (2/3) ... [2023-02-18 07:56:54,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44bbf0b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 07:56:54, skipping insertion in model container [2023-02-18 07:56:54,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:56:54" (3/3) ... [2023-02-18 07:56:54,788 INFO L112 eAbstractionObserver]: Analyzing ICFG Bangalore_v3.c [2023-02-18 07:56:54,802 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 07:56:54,802 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-02-18 07:56:54,856 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 07:56:54,862 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@723fe956, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 07:56:54,863 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-02-18 07:56:54,871 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:56:54,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 07:56:54,875 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:56:54,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 07:56:54,876 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-02-18 07:56:54,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:56:54,882 INFO L85 PathProgramCache]: Analyzing trace with hash 28693987, now seen corresponding path program 1 times [2023-02-18 07:56:54,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:56:54,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167353549] [2023-02-18 07:56:54,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:56:54,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:56:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:56:55,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:56:55,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:56:55,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167353549] [2023-02-18 07:56:55,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167353549] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:56:55,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:56:55,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 07:56:55,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967653130] [2023-02-18 07:56:55,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:56:55,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 07:56:55,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:56:55,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 07:56:55,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 07:56:55,052 INFO L87 Difference]: Start difference. First operand has 12 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:56:55,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:56:55,111 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2023-02-18 07:56:55,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 07:56:55,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-18 07:56:55,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:56:55,117 INFO L225 Difference]: With dead ends: 24 [2023-02-18 07:56:55,118 INFO L226 Difference]: Without dead ends: 11 [2023-02-18 07:56:55,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 07:56:55,122 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:56:55,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 15 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:56:55,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-02-18 07:56:55,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2023-02-18 07:56:55,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:56:55,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-02-18 07:56:55,142 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2023-02-18 07:56:55,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:56:55,142 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2023-02-18 07:56:55,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:56:55,143 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-02-18 07:56:55,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 07:56:55,143 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:56:55,143 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 07:56:55,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 07:56:55,144 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-02-18 07:56:55,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:56:55,144 INFO L85 PathProgramCache]: Analyzing trace with hash 889513645, now seen corresponding path program 1 times [2023-02-18 07:56:55,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:56:55,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468508269] [2023-02-18 07:56:55,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:56:55,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:56:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 07:56:55,151 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 07:56:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 07:56:55,163 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 07:56:55,163 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-18 07:56:55,164 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-02-18 07:56:55,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-02-18 07:56:55,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 07:56:55,168 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-02-18 07:56:55,172 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 07:56:55,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 07:56:55 BoogieIcfgContainer [2023-02-18 07:56:55,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 07:56:55,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 07:56:55,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 07:56:55,182 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 07:56:55,183 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:56:54" (3/4) ... [2023-02-18 07:56:55,187 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-18 07:56:55,231 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 07:56:55,231 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 07:56:55,232 INFO L158 Benchmark]: Toolchain (without parser) took 820.10ms. Allocated memory was 113.2MB in the beginning and 165.7MB in the end (delta: 52.4MB). Free memory was 70.4MB in the beginning and 116.2MB in the end (delta: -45.8MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2023-02-18 07:56:55,233 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 07:56:55,233 INFO L158 Benchmark]: CACSL2BoogieTranslator took 145.40ms. Allocated memory is still 113.2MB. Free memory was 70.0MB in the beginning and 60.9MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 07:56:55,233 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.39ms. Allocated memory is still 113.2MB. Free memory was 60.9MB in the beginning and 59.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 07:56:55,233 INFO L158 Benchmark]: Boogie Preprocessor took 13.33ms. Allocated memory is still 113.2MB. Free memory was 59.6MB in the beginning and 58.9MB in the end (delta: 706.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 07:56:55,235 INFO L158 Benchmark]: RCFGBuilder took 184.78ms. Allocated memory is still 113.2MB. Free memory was 58.9MB in the beginning and 50.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 07:56:55,236 INFO L158 Benchmark]: TraceAbstraction took 399.40ms. Allocated memory was 113.2MB in the beginning and 165.7MB in the end (delta: 52.4MB). Free memory was 49.8MB in the beginning and 118.2MB in the end (delta: -68.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 07:56:55,236 INFO L158 Benchmark]: Witness Printer took 48.96ms. Allocated memory is still 165.7MB. Free memory was 118.2MB in the beginning and 116.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 07:56:55,238 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 145.40ms. Allocated memory is still 113.2MB. Free memory was 70.0MB in the beginning and 60.9MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.39ms. Allocated memory is still 113.2MB. Free memory was 60.9MB in the beginning and 59.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.33ms. Allocated memory is still 113.2MB. Free memory was 59.6MB in the beginning and 58.9MB in the end (delta: 706.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 184.78ms. Allocated memory is still 113.2MB. Free memory was 58.9MB in the beginning and 50.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 399.40ms. Allocated memory was 113.2MB in the beginning and 165.7MB in the end (delta: 52.4MB). Free memory was 49.8MB in the beginning and 118.2MB in the end (delta: -68.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 48.96ms. Allocated memory is still 165.7MB. Free memory was 118.2MB in the beginning and 116.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x; [L13] int y; [L14] x = __VERIFIER_nondet_int() [L15] y = __VERIFIER_nondet_int() [L16] COND TRUE y <= x VAL [x=0, y=-2147483648] [L17] COND TRUE x >= 0 VAL [x=0, y=-2147483648] [L18] x - y VAL [x=0, y=-2147483648] - UnprovableResult [Line: 18]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 11 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-02-18 07:56:55,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)