./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test29-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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/ldv-regression/test29-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 787d3b2fa11dec769df3d46659aa468e143e27411fdb13355e30ec6b3ce36b2e --- Real Ultimate output --- This is Ultimate 0.2.2-?-2329fc7 [2023-02-13 23:25:17,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 23:25:17,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 23:25:17,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 23:25:17,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 23:25:17,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 23:25:17,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 23:25:17,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 23:25:17,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 23:25:17,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 23:25:17,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 23:25:17,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 23:25:17,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 23:25:17,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 23:25:17,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 23:25:17,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 23:25:17,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 23:25:17,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 23:25:17,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 23:25:17,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 23:25:17,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 23:25:17,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 23:25:17,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 23:25:17,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 23:25:17,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 23:25:17,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 23:25:17,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 23:25:17,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 23:25:17,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 23:25:17,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 23:25:17,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 23:25:17,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 23:25:17,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 23:25:17,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 23:25:17,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 23:25:17,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 23:25:17,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 23:25:17,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 23:25:17,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 23:25:17,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 23:25:17,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 23:25:17,978 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-13 23:25:18,016 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 23:25:18,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 23:25:18,017 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-13 23:25:18,017 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-13 23:25:18,018 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-13 23:25:18,018 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-13 23:25:18,019 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 23:25:18,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 23:25:18,019 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 23:25:18,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 23:25:18,020 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-13 23:25:18,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-13 23:25:18,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-13 23:25:18,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 23:25:18,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-13 23:25:18,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-13 23:25:18,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-13 23:25:18,021 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-13 23:25:18,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 23:25:18,022 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-13 23:25:18,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-13 23:25:18,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 23:25:18,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 23:25:18,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-13 23:25:18,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-13 23:25:18,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 23:25:18,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-13 23:25:18,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 23:25:18,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 23:25:18,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-13 23:25:18,024 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-13 23:25:18,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-13 23:25:18,024 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-13 23:25:18,024 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-13 23:25:18,024 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-13 23:25:18,025 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 787d3b2fa11dec769df3d46659aa468e143e27411fdb13355e30ec6b3ce36b2e [2023-02-13 23:25:18,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 23:25:18,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 23:25:18,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 23:25:18,293 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 23:25:18,293 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 23:25:18,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test29-1.c [2023-02-13 23:25:19,321 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-13 23:25:19,472 INFO L351 CDTParser]: Found 1 translation units. [2023-02-13 23:25:19,473 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test29-1.c [2023-02-13 23:25:19,480 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f1046184/233aba15fe304e2f917d9c6b80711081/FLAGb4da352c8 [2023-02-13 23:25:19,492 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f1046184/233aba15fe304e2f917d9c6b80711081 [2023-02-13 23:25:19,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 23:25:19,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-13 23:25:19,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 23:25:19,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 23:25:19,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 23:25:19,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 11:25:19" (1/1) ... [2023-02-13 23:25:19,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20cb85f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:25:19, skipping insertion in model container [2023-02-13 23:25:19,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 11:25:19" (1/1) ... [2023-02-13 23:25:19,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 23:25:19,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 23:25:19,630 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test29-1.c[614,627] [2023-02-13 23:25:19,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 23:25:19,641 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 23:25:19,651 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test29-1.c[614,627] [2023-02-13 23:25:19,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 23:25:19,662 INFO L208 MainTranslator]: Completed translation [2023-02-13 23:25:19,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:25:19 WrapperNode [2023-02-13 23:25:19,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 23:25:19,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 23:25:19,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 23:25:19,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 23:25:19,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:25:19" (1/1) ... [2023-02-13 23:25:19,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:25:19" (1/1) ... [2023-02-13 23:25:19,687 INFO L138 Inliner]: procedures = 13, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2023-02-13 23:25:19,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 23:25:19,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 23:25:19,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 23:25:19,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 23:25:19,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:25:19" (1/1) ... [2023-02-13 23:25:19,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:25:19" (1/1) ... [2023-02-13 23:25:19,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:25:19" (1/1) ... [2023-02-13 23:25:19,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:25:19" (1/1) ... [2023-02-13 23:25:19,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:25:19" (1/1) ... [2023-02-13 23:25:19,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:25:19" (1/1) ... [2023-02-13 23:25:19,701 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:25:19" (1/1) ... [2023-02-13 23:25:19,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:25:19" (1/1) ... [2023-02-13 23:25:19,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 23:25:19,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 23:25:19,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 23:25:19,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 23:25:19,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:25:19" (1/1) ... [2023-02-13 23:25:19,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-13 23:25:19,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-13 23:25:19,728 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) [2023-02-13 23:25:19,736 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 [2023-02-13 23:25:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-13 23:25:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-13 23:25:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-13 23:25:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-13 23:25:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 23:25:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 23:25:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-13 23:25:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-13 23:25:19,810 INFO L235 CfgBuilder]: Building ICFG [2023-02-13 23:25:19,812 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 23:25:19,896 INFO L276 CfgBuilder]: Performing block encoding [2023-02-13 23:25:19,916 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 23:25:19,928 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-13 23:25:19,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 11:25:19 BoogieIcfgContainer [2023-02-13 23:25:19,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 23:25:19,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 23:25:19,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 23:25:19,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 23:25:19,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 11:25:19" (1/3) ... [2023-02-13 23:25:19,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb4539c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 11:25:19, skipping insertion in model container [2023-02-13 23:25:19,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 11:25:19" (2/3) ... [2023-02-13 23:25:19,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb4539c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 11:25:19, skipping insertion in model container [2023-02-13 23:25:19,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 11:25:19" (3/3) ... [2023-02-13 23:25:19,938 INFO L112 eAbstractionObserver]: Analyzing ICFG test29-1.c [2023-02-13 23:25:19,968 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-13 23:25:19,968 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-13 23:25:20,046 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-13 23:25:20,051 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;@2641c186, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-13 23:25:20,052 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-13 23:25:20,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2023-02-13 23:25:20,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-13 23:25:20,081 INFO L187 NwaCegarLoop]: Found error trace [2023-02-13 23:25:20,081 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-13 23:25:20,082 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-13 23:25:20,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 23:25:20,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1804966473, now seen corresponding path program 1 times [2023-02-13 23:25:20,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 23:25:20,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396635442] [2023-02-13 23:25:20,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 23:25:20,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 23:25:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 23:25:20,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 23:25:20,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 23:25:20,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396635442] [2023-02-13 23:25:20,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396635442] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 23:25:20,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 23:25:20,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-13 23:25:20,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577494814] [2023-02-13 23:25:20,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 23:25:20,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-13 23:25:20,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 23:25:20,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-13 23:25:20,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-13 23:25:20,491 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2023-02-13 23:25:20,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 23:25:20,571 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2023-02-13 23:25:20,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-13 23:25:20,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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 [2023-02-13 23:25:20,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-13 23:25:20,580 INFO L225 Difference]: With dead ends: 21 [2023-02-13 23:25:20,580 INFO L226 Difference]: Without dead ends: 8 [2023-02-13 23:25:20,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-02-13 23:25:20,585 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-13 23:25:20,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 19 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-13 23:25:20,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-02-13 23:25:20,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-02-13 23:25:20,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 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) [2023-02-13 23:25:20,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2023-02-13 23:25:20,608 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2023-02-13 23:25:20,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-13 23:25:20,608 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2023-02-13 23:25:20,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2023-02-13 23:25:20,608 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2023-02-13 23:25:20,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-13 23:25:20,609 INFO L187 NwaCegarLoop]: Found error trace [2023-02-13 23:25:20,609 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-13 23:25:20,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-13 23:25:20,609 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-13 23:25:20,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 23:25:20,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1806813515, now seen corresponding path program 1 times [2023-02-13 23:25:20,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 23:25:20,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351843013] [2023-02-13 23:25:20,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 23:25:20,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 23:25:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 23:25:20,629 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 23:25:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 23:25:20,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 23:25:20,652 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-13 23:25:20,654 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-13 23:25:20,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-13 23:25:20,658 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-02-13 23:25:20,661 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-13 23:25:20,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 11:25:20 BoogieIcfgContainer [2023-02-13 23:25:20,679 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 23:25:20,680 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-13 23:25:20,680 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-13 23:25:20,681 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-13 23:25:20,681 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 11:25:19" (3/4) ... [2023-02-13 23:25:20,682 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-13 23:25:20,714 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-13 23:25:20,714 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-13 23:25:20,715 INFO L158 Benchmark]: Toolchain (without parser) took 1219.04ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 74.4MB in the beginning and 85.0MB in the end (delta: -10.5MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2023-02-13 23:25:20,716 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-13 23:25:20,716 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.40ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 64.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-13 23:25:20,717 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.32ms. Allocated memory is still 117.4MB. Free memory was 64.1MB in the beginning and 62.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-13 23:25:20,717 INFO L158 Benchmark]: Boogie Preprocessor took 15.86ms. Allocated memory is still 117.4MB. Free memory was 62.8MB in the beginning and 61.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-13 23:25:20,717 INFO L158 Benchmark]: RCFGBuilder took 227.04ms. Allocated memory is still 117.4MB. Free memory was 61.5MB in the beginning and 51.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-13 23:25:20,718 INFO L158 Benchmark]: TraceAbstraction took 746.58ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 50.7MB in the beginning and 87.1MB in the end (delta: -36.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-13 23:25:20,719 INFO L158 Benchmark]: Witness Printer took 34.41ms. Allocated memory is still 142.6MB. Free memory was 87.1MB in the beginning and 85.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-13 23:25:20,721 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 164.40ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 64.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.32ms. Allocated memory is still 117.4MB. Free memory was 64.1MB in the beginning and 62.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.86ms. Allocated memory is still 117.4MB. Free memory was 62.8MB in the beginning and 61.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 227.04ms. Allocated memory is still 117.4MB. Free memory was 61.5MB in the beginning and 51.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 746.58ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 50.7MB in the beginning and 87.1MB in the end (delta: -36.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 34.41ms. Allocated memory is still 142.6MB. Free memory was 87.1MB in the beginning and 85.0MB 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 - CounterExampleResult [Line: 30]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L15] union dummy d1, d2; [L16] int n = __VERIFIER_nondet_int(); [L17] union dummy *pd = n ? &d1 : &d2; [L18] d1.a = __VERIFIER_nondet_int() [L19] COND FALSE !(pd == &d1) [L22] pd->b = 0 VAL [d1={5:0}, d2={6:0}, n=0, pd={6:0}] [L24] pd == &d2 && d1.a != 0 [L24] EXPR d1.a [L24] pd == &d2 && d1.a != 0 VAL [d1={5:0}, d1.a=-1, d2={6:0}, n=0, pd={6:0}, pd == &d2 && d1.a != 0=1] [L24] COND TRUE pd == &d2 && d1.a != 0 [L30] reach_error() VAL [d1={5:0}, d2={6:0}, n=0, pd={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 6 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 0.3s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 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! [2023-02-13 23:25:20,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE