./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/signedintegeroverflow-regression/PrefixIncrement.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 574ddb4e 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/signedintegeroverflow-regression/PrefixIncrement.i -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 bc949f01d3072f8d5a3b015a375618b4a9741f7ee0cd702369b7f784be11a819 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 09:16:50,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 09:16:50,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 09:16:50,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 09:16:50,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 09:16:50,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 09:16:50,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 09:16:50,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 09:16:50,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 09:16:50,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 09:16:50,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 09:16:50,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 09:16:50,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 09:16:50,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 09:16:50,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 09:16:50,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 09:16:50,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 09:16:50,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 09:16:50,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 09:16:50,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 09:16:50,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 09:16:50,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 09:16:50,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 09:16:50,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 09:16:50,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 09:16:50,107 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 09:16:50,107 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 09:16:50,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 09:16:50,109 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 09:16:50,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 09:16:50,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 09:16:50,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 09:16:50,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 09:16:50,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 09:16:50,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 09:16:50,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 09:16:50,116 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 09:16:50,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 09:16:50,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 09:16:50,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 09:16:50,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 09:16:50,120 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-17 09:16:50,148 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 09:16:50,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 09:16:50,149 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 09:16:50,150 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 09:16:50,150 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 09:16:50,151 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 09:16:50,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 09:16:50,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 09:16:50,152 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 09:16:50,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 09:16:50,153 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 09:16:50,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 09:16:50,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 09:16:50,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 09:16:50,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 09:16:50,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 09:16:50,154 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-17 09:16:50,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 09:16:50,154 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 09:16:50,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 09:16:50,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 09:16:50,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 09:16:50,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 09:16:50,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 09:16:50,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 09:16:50,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 09:16:50,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 09:16:50,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 09:16:50,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 09:16:50,157 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 09:16:50,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 09:16:50,158 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 09:16:50,158 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 09:16:50,158 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 09:16:50,158 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc949f01d3072f8d5a3b015a375618b4a9741f7ee0cd702369b7f784be11a819 [2023-02-17 09:16:50,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 09:16:50,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 09:16:50,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 09:16:50,435 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 09:16:50,436 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 09:16:50,437 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/signedintegeroverflow-regression/PrefixIncrement.i [2023-02-17 09:16:51,606 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 09:16:51,831 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 09:16:51,832 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/signedintegeroverflow-regression/PrefixIncrement.i [2023-02-17 09:16:51,841 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31a895061/1cba8c3e32ae479dacead27a67033769/FLAG69341b880 [2023-02-17 09:16:51,859 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31a895061/1cba8c3e32ae479dacead27a67033769 [2023-02-17 09:16:51,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 09:16:51,862 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 09:16:51,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 09:16:51,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 09:16:51,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 09:16:51,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 09:16:51" (1/1) ... [2023-02-17 09:16:51,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e8c132f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:51, skipping insertion in model container [2023-02-17 09:16:51,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 09:16:51" (1/1) ... [2023-02-17 09:16:51,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 09:16:51,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 09:16:52,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 09:16:52,137 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 09:16:52,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 09:16:52,203 INFO L208 MainTranslator]: Completed translation [2023-02-17 09:16:52,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:52 WrapperNode [2023-02-17 09:16:52,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 09:16:52,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 09:16:52,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 09:16:52,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 09:16:52,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:52" (1/1) ... [2023-02-17 09:16:52,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:52" (1/1) ... [2023-02-17 09:16:52,242 INFO L138 Inliner]: procedures = 104, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2023-02-17 09:16:52,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 09:16:52,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 09:16:52,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 09:16:52,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 09:16:52,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:52" (1/1) ... [2023-02-17 09:16:52,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:52" (1/1) ... [2023-02-17 09:16:52,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:52" (1/1) ... [2023-02-17 09:16:52,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:52" (1/1) ... [2023-02-17 09:16:52,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:52" (1/1) ... [2023-02-17 09:16:52,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:52" (1/1) ... [2023-02-17 09:16:52,261 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:52" (1/1) ... [2023-02-17 09:16:52,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:52" (1/1) ... [2023-02-17 09:16:52,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 09:16:52,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 09:16:52,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 09:16:52,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 09:16:52,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:52" (1/1) ... [2023-02-17 09:16:52,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 09:16:52,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 09:16:52,292 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) [2023-02-17 09:16:52,315 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 [2023-02-17 09:16:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 09:16:52,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 09:16:52,403 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 09:16:52,405 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 09:16:52,513 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 09:16:52,521 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 09:16:52,521 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-17 09:16:52,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:16:52 BoogieIcfgContainer [2023-02-17 09:16:52,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 09:16:52,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 09:16:52,544 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 09:16:52,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 09:16:52,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 09:16:51" (1/3) ... [2023-02-17 09:16:52,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f490f2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 09:16:52, skipping insertion in model container [2023-02-17 09:16:52,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 09:16:52" (2/3) ... [2023-02-17 09:16:52,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f490f2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 09:16:52, skipping insertion in model container [2023-02-17 09:16:52,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:16:52" (3/3) ... [2023-02-17 09:16:52,551 INFO L112 eAbstractionObserver]: Analyzing ICFG PrefixIncrement.i [2023-02-17 09:16:52,573 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 09:16:52,574 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-02-17 09:16:52,621 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 09:16:52,628 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;@3a864503, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 09:16:52,628 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-02-17 09:16:52,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 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) [2023-02-17 09:16:52,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-02-17 09:16:52,636 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:16:52,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-02-17 09:16:52,638 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-02-17 09:16:52,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:16:52,644 INFO L85 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2023-02-17 09:16:52,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:16:52,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340540232] [2023-02-17 09:16:52,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:16:52,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:16:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 09:16:52,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 09:16:52,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 09:16:52,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340540232] [2023-02-17 09:16:52,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340540232] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 09:16:52,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 09:16:52,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 09:16:52,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564704446] [2023-02-17 09:16:52,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 09:16:52,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 09:16:52,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 09:16:52,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 09:16:52,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 09:16:52,817 INFO L87 Difference]: Start difference. First operand has 9 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 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 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-02-17 09:16:52,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 09:16:52,835 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2023-02-17 09:16:52,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 09:16:52,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2023-02-17 09:16:52,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 09:16:52,848 INFO L225 Difference]: With dead ends: 9 [2023-02-17 09:16:52,848 INFO L226 Difference]: Without dead ends: 5 [2023-02-17 09:16:52,850 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 [2023-02-17 09:16:52,853 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 09:16:52,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 09:16:52,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2023-02-17 09:16:52,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2023-02-17 09:16:52,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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) [2023-02-17 09:16:52,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4 transitions. [2023-02-17 09:16:52,915 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 4 transitions. Word has length 3 [2023-02-17 09:16:52,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 09:16:52,915 INFO L495 AbstractCegarLoop]: Abstraction has 5 states and 4 transitions. [2023-02-17 09:16:52,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-02-17 09:16:52,916 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2023-02-17 09:16:52,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-02-17 09:16:52,916 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 09:16:52,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-02-17 09:16:52,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 09:16:52,917 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-02-17 09:16:52,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 09:16:52,918 INFO L85 PathProgramCache]: Analyzing trace with hash 925572, now seen corresponding path program 1 times [2023-02-17 09:16:52,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 09:16:52,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470304117] [2023-02-17 09:16:52,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 09:16:52,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 09:16:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:16:52,923 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-17 09:16:52,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-17 09:16:52,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-17 09:16:52,955 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-17 09:16:52,957 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-02-17 09:16:52,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-02-17 09:16:52,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-17 09:16:52,962 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-02-17 09:16:52,965 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-17 09:16:52,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.02 09:16:52 BoogieIcfgContainer [2023-02-17 09:16:52,983 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-17 09:16:52,984 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 09:16:52,984 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 09:16:52,984 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 09:16:52,984 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 09:16:52" (3/4) ... [2023-02-17 09:16:52,986 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-17 09:16:53,018 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-17 09:16:53,019 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 09:16:53,021 INFO L158 Benchmark]: Toolchain (without parser) took 1157.55ms. Allocated memory was 111.1MB in the beginning and 140.5MB in the end (delta: 29.4MB). Free memory was 70.2MB in the beginning and 88.3MB in the end (delta: -18.1MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2023-02-17 09:16:53,021 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 111.1MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 09:16:53,022 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.91ms. Allocated memory is still 111.1MB. Free memory was 69.9MB in the beginning and 56.1MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-17 09:16:53,022 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.85ms. Allocated memory is still 111.1MB. Free memory was 56.1MB in the beginning and 54.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 09:16:53,025 INFO L158 Benchmark]: Boogie Preprocessor took 19.15ms. Allocated memory is still 111.1MB. Free memory was 54.2MB in the beginning and 53.4MB in the end (delta: 863.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 09:16:53,027 INFO L158 Benchmark]: RCFGBuilder took 261.68ms. Allocated memory was 111.1MB in the beginning and 140.5MB in the end (delta: 29.4MB). Free memory was 53.4MB in the beginning and 110.1MB in the end (delta: -56.7MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2023-02-17 09:16:53,028 INFO L158 Benchmark]: TraceAbstraction took 439.32ms. Allocated memory is still 140.5MB. Free memory was 112.1MB in the beginning and 89.8MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-02-17 09:16:53,031 INFO L158 Benchmark]: Witness Printer took 35.84ms. Allocated memory is still 140.5MB. Free memory was 89.8MB in the beginning and 88.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 09:16:53,034 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 111.1MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.91ms. Allocated memory is still 111.1MB. Free memory was 69.9MB in the beginning and 56.1MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.85ms. Allocated memory is still 111.1MB. Free memory was 56.1MB in the beginning and 54.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.15ms. Allocated memory is still 111.1MB. Free memory was 54.2MB in the beginning and 53.4MB in the end (delta: 863.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 261.68ms. Allocated memory was 111.1MB in the beginning and 140.5MB in the end (delta: 29.4MB). Free memory was 53.4MB in the beginning and 110.1MB in the end (delta: -56.7MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * TraceAbstraction took 439.32ms. Allocated memory is still 140.5MB. Free memory was 112.1MB in the beginning and 89.8MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 35.84ms. Allocated memory is still 140.5MB. Free memory was 89.8MB in the beginning and 88.3MB in the end (delta: 1.5MB). 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: 333]: integer overflow possible integer overflow possible We found a FailurePath: [L332] int x = 2147483647; VAL [x=2147483647] [L333] ++x VAL [x=2147483647] - UnprovableResult [Line: 333]: 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, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 2 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=9occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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! [2023-02-17 09:16:53,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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)