./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-restricted-15/b.18.c --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/termination-restricted-15/b.18.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 b7b84dd29ea36609e5f5c61ea995baac9099f3fa2331fbdc558930ff5215a280 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 23:57:39,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 23:57:39,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 23:57:39,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 23:57:39,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 23:57:39,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 23:57:39,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 23:57:39,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 23:57:39,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 23:57:39,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 23:57:39,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 23:57:39,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 23:57:39,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 23:57:39,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 23:57:39,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 23:57:39,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 23:57:39,715 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 23:57:39,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 23:57:39,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 23:57:39,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 23:57:39,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 23:57:39,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 23:57:39,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 23:57:39,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 23:57:39,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 23:57:39,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 23:57:39,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 23:57:39,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 23:57:39,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 23:57:39,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 23:57:39,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 23:57:39,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 23:57:39,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 23:57:39,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 23:57:39,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 23:57:39,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 23:57:39,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 23:57:39,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 23:57:39,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 23:57:39,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 23:57:39,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 23:57:39,739 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-18 23:57:39,762 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 23:57:39,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 23:57:39,763 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 23:57:39,763 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 23:57:39,764 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 23:57:39,764 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 23:57:39,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 23:57:39,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 23:57:39,765 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 23:57:39,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 23:57:39,765 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 23:57:39,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 23:57:39,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 23:57:39,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 23:57:39,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 23:57:39,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 23:57:39,766 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 23:57:39,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 23:57:39,766 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 23:57:39,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 23:57:39,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 23:57:39,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 23:57:39,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 23:57:39,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:57:39,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 23:57:39,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 23:57:39,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 23:57:39,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 23:57:39,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 23:57:39,768 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 23:57:39,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 23:57:39,768 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 23:57:39,768 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 23:57:39,769 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 23:57:39,769 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b84dd29ea36609e5f5c61ea995baac9099f3fa2331fbdc558930ff5215a280 [2023-02-18 23:57:39,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 23:57:39,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 23:57:39,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 23:57:39,962 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 23:57:39,963 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 23:57:39,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/b.18.c [2023-02-18 23:57:40,833 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 23:57:40,998 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 23:57:40,999 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/b.18.c [2023-02-18 23:57:41,002 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c93a94c96/79af9585fb424c399550eb765da35337/FLAG50503b7db [2023-02-18 23:57:41,015 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c93a94c96/79af9585fb424c399550eb765da35337 [2023-02-18 23:57:41,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 23:57:41,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 23:57:41,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 23:57:41,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 23:57:41,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 23:57:41,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:57:41" (1/1) ... [2023-02-18 23:57:41,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@911f4d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:41, skipping insertion in model container [2023-02-18 23:57:41,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:57:41" (1/1) ... [2023-02-18 23:57:41,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 23:57:41,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 23:57:41,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:57:41,146 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 23:57:41,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:57:41,164 INFO L208 MainTranslator]: Completed translation [2023-02-18 23:57:41,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:41 WrapperNode [2023-02-18 23:57:41,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 23:57:41,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 23:57:41,166 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 23:57:41,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 23:57:41,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:41" (1/1) ... [2023-02-18 23:57:41,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:41" (1/1) ... [2023-02-18 23:57:41,183 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2023-02-18 23:57:41,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 23:57:41,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 23:57:41,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 23:57:41,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 23:57:41,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:41" (1/1) ... [2023-02-18 23:57:41,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:41" (1/1) ... [2023-02-18 23:57:41,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:41" (1/1) ... [2023-02-18 23:57:41,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:41" (1/1) ... [2023-02-18 23:57:41,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:41" (1/1) ... [2023-02-18 23:57:41,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:41" (1/1) ... [2023-02-18 23:57:41,196 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:41" (1/1) ... [2023-02-18 23:57:41,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:41" (1/1) ... [2023-02-18 23:57:41,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 23:57:41,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 23:57:41,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 23:57:41,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 23:57:41,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:41" (1/1) ... [2023-02-18 23:57:41,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:57:41,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:57:41,219 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 23:57:41,229 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 23:57:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 23:57:41,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 23:57:41,300 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 23:57:41,301 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 23:57:41,404 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 23:57:41,408 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 23:57:41,408 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-18 23:57:41,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:57:41 BoogieIcfgContainer [2023-02-18 23:57:41,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 23:57:41,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 23:57:41,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 23:57:41,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 23:57:41,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 11:57:41" (1/3) ... [2023-02-18 23:57:41,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31582d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:57:41, skipping insertion in model container [2023-02-18 23:57:41,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:57:41" (2/3) ... [2023-02-18 23:57:41,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31582d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:57:41, skipping insertion in model container [2023-02-18 23:57:41,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:57:41" (3/3) ... [2023-02-18 23:57:41,429 INFO L112 eAbstractionObserver]: Analyzing ICFG b.18.c [2023-02-18 23:57:41,440 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 23:57:41,440 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-18 23:57:41,502 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 23:57:41,510 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;@26ae9f98, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 23:57:41,511 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-18 23:57:41,514 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 17 states have internal predecessors, (24), 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 23:57:41,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 23:57:41,518 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:57:41,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 23:57:41,520 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:57:41,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:57:41,524 INFO L85 PathProgramCache]: Analyzing trace with hash 889710489, now seen corresponding path program 1 times [2023-02-18 23:57:41,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:57:41,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094911215] [2023-02-18 23:57:41,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:57:41,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:57:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:41,628 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 23:57:41,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:57:41,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094911215] [2023-02-18 23:57:41,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094911215] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:57:41,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:57:41,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:57:41,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236223073] [2023-02-18 23:57:41,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:57:41,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:57:41,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:57:41,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:57:41,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:57:41,657 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 17 states have internal predecessors, (24), 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 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 23:57:41,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:57:41,683 INFO L93 Difference]: Finished difference Result 39 states and 55 transitions. [2023-02-18 23:57:41,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:57:41,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-02-18 23:57:41,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:57:41,692 INFO L225 Difference]: With dead ends: 39 [2023-02-18 23:57:41,692 INFO L226 Difference]: Without dead ends: 15 [2023-02-18 23:57:41,693 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 23:57:41,696 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 13 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:57:41,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 21 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:57:41,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-18 23:57:41,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-02-18 23:57:41,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 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 23:57:41,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2023-02-18 23:57:41,714 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 6 [2023-02-18 23:57:41,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:57:41,714 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2023-02-18 23:57:41,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 23:57:41,715 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2023-02-18 23:57:41,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 23:57:41,715 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:57:41,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 23:57:41,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 23:57:41,715 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:57:41,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:57:41,716 INFO L85 PathProgramCache]: Analyzing trace with hash 889692615, now seen corresponding path program 1 times [2023-02-18 23:57:41,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:57:41,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60596902] [2023-02-18 23:57:41,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:57:41,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:57:41,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:41,739 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 23:57:41,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:57:41,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60596902] [2023-02-18 23:57:41,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60596902] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:57:41,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:57:41,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:57:41,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459047393] [2023-02-18 23:57:41,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:57:41,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:57:41,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:57:41,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:57:41,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:57:41,743 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 23:57:41,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:57:41,761 INFO L93 Difference]: Finished difference Result 27 states and 35 transitions. [2023-02-18 23:57:41,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:57:41,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-02-18 23:57:41,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:57:41,763 INFO L225 Difference]: With dead ends: 27 [2023-02-18 23:57:41,763 INFO L226 Difference]: Without dead ends: 15 [2023-02-18 23:57:41,764 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 23:57:41,765 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:57:41,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 10 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:57:41,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-18 23:57:41,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-02-18 23:57:41,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 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 23:57:41,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2023-02-18 23:57:41,768 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 6 [2023-02-18 23:57:41,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:57:41,768 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2023-02-18 23:57:41,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 23:57:41,768 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2023-02-18 23:57:41,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 23:57:41,769 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:57:41,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:57:41,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 23:57:41,769 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:57:41,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:57:41,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1811221458, now seen corresponding path program 1 times [2023-02-18 23:57:41,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:57:41,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421916417] [2023-02-18 23:57:41,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:57:41,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:57:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:41,789 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 23:57:41,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:57:41,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421916417] [2023-02-18 23:57:41,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421916417] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:57:41,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:57:41,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:57:41,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775156840] [2023-02-18 23:57:41,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:57:41,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:57:41,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:57:41,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:57:41,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:57:41,791 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 23:57:41,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:57:41,801 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2023-02-18 23:57:41,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:57:41,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-02-18 23:57:41,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:57:41,801 INFO L225 Difference]: With dead ends: 14 [2023-02-18 23:57:41,802 INFO L226 Difference]: Without dead ends: 13 [2023-02-18 23:57:41,802 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 23:57:41,803 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:57:41,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 8 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:57:41,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-02-18 23:57:41,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-02-18 23:57:41,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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 23:57:41,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2023-02-18 23:57:41,831 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 7 [2023-02-18 23:57:41,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:57:41,831 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2023-02-18 23:57:41,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 23:57:41,831 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2023-02-18 23:57:41,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 23:57:41,832 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:57:41,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:57:41,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 23:57:41,832 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:57:41,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:57:41,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1810667346, now seen corresponding path program 1 times [2023-02-18 23:57:41,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:57:41,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152421809] [2023-02-18 23:57:41,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:57:41,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:57:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:41,867 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 23:57:41,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:57:41,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152421809] [2023-02-18 23:57:41,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152421809] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:57:41,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:57:41,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:57:41,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205158549] [2023-02-18 23:57:41,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:57:41,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:57:41,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:57:41,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:57:41,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:57:41,870 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 23:57:41,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:57:41,879 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2023-02-18 23:57:41,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:57:41,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-02-18 23:57:41,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:57:41,880 INFO L225 Difference]: With dead ends: 13 [2023-02-18 23:57:41,880 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 23:57:41,880 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 23:57:41,881 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:57:41,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 7 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:57:41,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 23:57:41,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 23:57:41,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 23:57:41,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 23:57:41,883 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2023-02-18 23:57:41,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:57:41,883 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 23:57:41,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 23:57:41,883 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 23:57:41,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 23:57:41,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-02-18 23:57:41,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-02-18 23:57:41,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-02-18 23:57:41,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-02-18 23:57:41,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 23:57:41,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 23:57:41,891 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2023-02-18 23:57:41,891 INFO L895 garLoopResultBuilder]: At program point L15-2(lines 15 17) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) (.cse1 (<= |ULTIMATE.start_main_~x~0#1| 2147483647)) (.cse2 (<= 0 (+ |ULTIMATE.start_main_~x~0#1| (- 1))))) (or (and .cse0 .cse1 (<= 0 (+ |ULTIMATE.start_main_~y~0#1| (- 1))) .cse2) (and .cse0 .cse1 .cse2))) [2023-02-18 23:57:41,892 INFO L895 garLoopResultBuilder]: At program point L15-3(lines 9 19) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= |ULTIMATE.start_main_~x~0#1| 2147483647)) [2023-02-18 23:57:41,892 INFO L895 garLoopResultBuilder]: At program point L11-2(lines 11 13) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) (.cse1 (<= |ULTIMATE.start_main_~x~0#1| 2147483647)) (.cse2 (<= 0 (+ |ULTIMATE.start_main_~y~0#1| (- 1))))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (<= 0 (+ |ULTIMATE.start_main_~x~0#1| (- 1)))))) [2023-02-18 23:57:41,892 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 5 21) the Hoare annotation is: true [2023-02-18 23:57:41,892 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 23:57:41,892 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2023-02-18 23:57:41,892 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 23:57:41,893 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2023-02-18 23:57:41,893 INFO L899 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2023-02-18 23:57:41,893 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-02-18 23:57:41,893 INFO L899 garLoopResultBuilder]: For program point L12-1(line 12) no Hoare annotation was computed. [2023-02-18 23:57:41,893 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 12) no Hoare annotation was computed. [2023-02-18 23:57:41,893 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 23:57:41,893 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 23:57:41,894 INFO L899 garLoopResultBuilder]: For program point L9-2(lines 9 19) no Hoare annotation was computed. [2023-02-18 23:57:41,894 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2023-02-18 23:57:41,894 INFO L899 garLoopResultBuilder]: For program point L10(lines 10 18) no Hoare annotation was computed. [2023-02-18 23:57:41,896 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-02-18 23:57:41,897 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 23:57:41,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 11:57:41 BoogieIcfgContainer [2023-02-18 23:57:41,909 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 23:57:41,909 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 23:57:41,909 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 23:57:41,909 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 23:57:41,910 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:57:41" (3/4) ... [2023-02-18 23:57:41,912 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 23:57:41,917 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-18 23:57:41,917 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-18 23:57:41,917 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 23:57:41,936 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 23:57:41,936 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 23:57:41,937 INFO L158 Benchmark]: Toolchain (without parser) took 918.45ms. Allocated memory is still 140.5MB. Free memory was 105.9MB in the beginning and 102.5MB in the end (delta: 3.4MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2023-02-18 23:57:41,937 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 140.5MB. Free memory is still 112.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:57:41,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 145.89ms. Allocated memory is still 140.5MB. Free memory was 105.9MB in the beginning and 96.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 23:57:41,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.62ms. Allocated memory is still 140.5MB. Free memory was 96.8MB in the beginning and 95.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 23:57:41,938 INFO L158 Benchmark]: Boogie Preprocessor took 13.45ms. Allocated memory is still 140.5MB. Free memory was 95.4MB in the beginning and 94.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 23:57:41,938 INFO L158 Benchmark]: RCFGBuilder took 211.86ms. Allocated memory is still 140.5MB. Free memory was 94.3MB in the beginning and 85.4MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 23:57:41,939 INFO L158 Benchmark]: TraceAbstraction took 497.29ms. Allocated memory is still 140.5MB. Free memory was 85.0MB in the beginning and 104.6MB in the end (delta: -19.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:57:41,939 INFO L158 Benchmark]: Witness Printer took 27.43ms. Allocated memory is still 140.5MB. Free memory was 104.6MB in the beginning and 102.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 23:57:41,940 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 140.5MB. Free memory is still 112.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 145.89ms. Allocated memory is still 140.5MB. Free memory was 105.9MB in the beginning and 96.8MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.62ms. Allocated memory is still 140.5MB. Free memory was 96.8MB in the beginning and 95.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.45ms. Allocated memory is still 140.5MB. Free memory was 95.4MB in the beginning and 94.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 211.86ms. Allocated memory is still 140.5MB. Free memory was 94.3MB in the beginning and 85.4MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 497.29ms. Allocated memory is still 140.5MB. Free memory was 85.0MB in the beginning and 104.6MB in the end (delta: -19.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 27.43ms. Allocated memory is still 140.5MB. Free memory was 104.6MB in the beginning and 102.5MB in the end (delta: 2.1MB). 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 - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 39 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 68 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 66 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: y <= 2147483647 && x <= 2147483647 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((y <= 2147483647 && x <= 2147483647) && 0 <= y + -1) || (((y <= 2147483647 && x <= 2147483647) && 0 <= y + -1) && 0 <= x + -1) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: (((y <= 2147483647 && x <= 2147483647) && 0 <= y + -1) && 0 <= x + -1) || ((y <= 2147483647 && x <= 2147483647) && 0 <= x + -1) RESULT: Ultimate proved your program to be correct! [2023-02-18 23:57:41,959 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 Result: TRUE