./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/Et2_true.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e8d55036 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-numeric/Et2_true.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 73e4e9ad44f0149f289e6777e967feb732bfbe685996eb202297bca837b8bf8d --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 22:59:55,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 22:59:55,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 22:59:55,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 22:59:55,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 22:59:55,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 22:59:55,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 22:59:55,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 22:59:55,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 22:59:55,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 22:59:55,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 22:59:55,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 22:59:55,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 22:59:55,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 22:59:55,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 22:59:55,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 22:59:55,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 22:59:55,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 22:59:55,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 22:59:55,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 22:59:55,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 22:59:55,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 22:59:55,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 22:59:55,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 22:59:55,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 22:59:55,761 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 22:59:55,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 22:59:55,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 22:59:55,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 22:59:55,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 22:59:55,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 22:59:55,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 22:59:55,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 22:59:55,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 22:59:55,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 22:59:55,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 22:59:55,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 22:59:55,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 22:59:55,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 22:59:55,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 22:59:55,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 22:59:55,772 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-15 22:59:55,799 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 22:59:55,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 22:59:55,800 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 22:59:55,800 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 22:59:55,800 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 22:59:55,801 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 22:59:55,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 22:59:55,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 22:59:55,802 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 22:59:55,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 22:59:55,803 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 22:59:55,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 22:59:55,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 22:59:55,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 22:59:55,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 22:59:55,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 22:59:55,804 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 22:59:55,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 22:59:55,804 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 22:59:55,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 22:59:55,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 22:59:55,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 22:59:55,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 22:59:55,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 22:59:55,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 22:59:55,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 22:59:55,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 22:59:55,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 22:59:55,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 22:59:55,807 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 22:59:55,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 22:59:55,807 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 22:59:55,807 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 22:59:55,808 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 22:59:55,808 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73e4e9ad44f0149f289e6777e967feb732bfbe685996eb202297bca837b8bf8d [2023-02-15 22:59:56,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 22:59:56,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 22:59:56,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 22:59:56,101 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 22:59:56,101 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 22:59:56,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/Et2_true.c [2023-02-15 22:59:57,214 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 22:59:57,394 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 22:59:57,397 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/Et2_true.c [2023-02-15 22:59:57,402 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93bb93acd/0f15f19177e34cc3a10c172eab7c182b/FLAGc1ad9f36a [2023-02-15 22:59:57,419 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93bb93acd/0f15f19177e34cc3a10c172eab7c182b [2023-02-15 22:59:57,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 22:59:57,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 22:59:57,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 22:59:57,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 22:59:57,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 22:59:57,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:59:57" (1/1) ... [2023-02-15 22:59:57,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65bb9b3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:59:57, skipping insertion in model container [2023-02-15 22:59:57,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:59:57" (1/1) ... [2023-02-15 22:59:57,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 22:59:57,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 22:59:57,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 22:59:57,570 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 22:59:57,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 22:59:57,593 INFO L208 MainTranslator]: Completed translation [2023-02-15 22:59:57,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:59:57 WrapperNode [2023-02-15 22:59:57,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 22:59:57,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 22:59:57,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 22:59:57,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 22:59:57,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:59:57" (1/1) ... [2023-02-15 22:59:57,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:59:57" (1/1) ... [2023-02-15 22:59:57,615 INFO L138 Inliner]: procedures = 6, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2023-02-15 22:59:57,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 22:59:57,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 22:59:57,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 22:59:57,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 22:59:57,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:59:57" (1/1) ... [2023-02-15 22:59:57,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:59:57" (1/1) ... [2023-02-15 22:59:57,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:59:57" (1/1) ... [2023-02-15 22:59:57,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:59:57" (1/1) ... [2023-02-15 22:59:57,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:59:57" (1/1) ... [2023-02-15 22:59:57,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:59:57" (1/1) ... [2023-02-15 22:59:57,628 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:59:57" (1/1) ... [2023-02-15 22:59:57,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:59:57" (1/1) ... [2023-02-15 22:59:57,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 22:59:57,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 22:59:57,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 22:59:57,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 22:59:57,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:59:57" (1/1) ... [2023-02-15 22:59:57,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 22:59:57,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:59:57,659 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) [2023-02-15 22:59:57,661 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 [2023-02-15 22:59:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure random [2023-02-15 22:59:57,694 INFO L138 BoogieDeclarations]: Found implementation of procedure random [2023-02-15 22:59:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure loop [2023-02-15 22:59:57,694 INFO L138 BoogieDeclarations]: Found implementation of procedure loop [2023-02-15 22:59:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 22:59:57,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 22:59:57,735 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 22:59:57,736 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 22:59:57,849 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 22:59:57,856 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 22:59:57,856 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-15 22:59:57,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:59:57 BoogieIcfgContainer [2023-02-15 22:59:57,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 22:59:57,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 22:59:57,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 22:59:57,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 22:59:57,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 10:59:57" (1/3) ... [2023-02-15 22:59:57,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2127e8ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:59:57, skipping insertion in model container [2023-02-15 22:59:57,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:59:57" (2/3) ... [2023-02-15 22:59:57,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2127e8ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:59:57, skipping insertion in model container [2023-02-15 22:59:57,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:59:57" (3/3) ... [2023-02-15 22:59:57,865 INFO L112 eAbstractionObserver]: Analyzing ICFG Et2_true.c [2023-02-15 22:59:57,880 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 22:59:57,880 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-02-15 22:59:57,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 22:59:57,937 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;@2ccef1d0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 22:59:57,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-02-15 22:59:57,941 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 24 states have (on average 1.5) internal successors, (36), 35 states have internal predecessors, (36), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 22:59:57,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 22:59:57,946 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:59:57,946 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 22:59:57,947 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-15 22:59:57,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:59:57,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1984378607, now seen corresponding path program 1 times [2023-02-15 22:59:57,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:59:57,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480016145] [2023-02-15 22:59:57,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:59:57,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:59:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:59:58,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:59:58,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:59:58,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480016145] [2023-02-15 22:59:58,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480016145] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:59:58,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:59:58,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 22:59:58,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989850136] [2023-02-15 22:59:58,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:59:58,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 22:59:58,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:59:58,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 22:59:58,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:59:58,127 INFO L87 Difference]: Start difference. First operand has 42 states, 24 states have (on average 1.5) internal successors, (36), 35 states have internal predecessors, (36), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:58,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:59:58,180 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2023-02-15 22:59:58,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 22:59:58,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-15 22:59:58,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:59:58,188 INFO L225 Difference]: With dead ends: 44 [2023-02-15 22:59:58,189 INFO L226 Difference]: Without dead ends: 37 [2023-02-15 22:59:58,191 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 [2023-02-15 22:59:58,194 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 4 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:59:58,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 88 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:59:58,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-02-15 22:59:58,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2023-02-15 22:59:58,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 20 states have (on average 1.5) internal successors, (30), 29 states have internal predecessors, (30), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 22:59:58,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2023-02-15 22:59:58,237 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 6 [2023-02-15 22:59:58,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:59:58,237 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2023-02-15 22:59:58,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:58,237 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2023-02-15 22:59:58,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 22:59:58,238 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:59:58,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:59:58,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 22:59:58,239 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-15 22:59:58,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:59:58,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1386194710, now seen corresponding path program 1 times [2023-02-15 22:59:58,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:59:58,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180619203] [2023-02-15 22:59:58,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:59:58,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:59:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 22:59:58,256 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 22:59:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 22:59:58,274 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 22:59:58,274 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-15 22:59:58,276 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-02-15 22:59:58,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-02-15 22:59:58,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-02-15 22:59:58,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-02-15 22:59:58,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2023-02-15 22:59:58,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2023-02-15 22:59:58,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-02-15 22:59:58,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-02-15 22:59:58,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-02-15 22:59:58,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-02-15 22:59:58,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 22:59:58,283 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-02-15 22:59:58,286 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 22:59:58,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 10:59:58 BoogieIcfgContainer [2023-02-15 22:59:58,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 22:59:58,299 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 22:59:58,299 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 22:59:58,300 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 22:59:58,300 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:59:57" (3/4) ... [2023-02-15 22:59:58,302 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-02-15 22:59:58,334 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 22:59:58,337 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 22:59:58,338 INFO L158 Benchmark]: Toolchain (without parser) took 915.03ms. Allocated memory was 119.5MB in the beginning and 161.5MB in the end (delta: 41.9MB). Free memory was 88.4MB in the beginning and 123.5MB in the end (delta: -35.1MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2023-02-15 22:59:58,339 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 22:59:58,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.92ms. Allocated memory is still 119.5MB. Free memory was 88.4MB in the beginning and 78.8MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 22:59:58,342 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.54ms. Allocated memory is still 119.5MB. Free memory was 78.8MB in the beginning and 77.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 22:59:58,345 INFO L158 Benchmark]: Boogie Preprocessor took 13.03ms. Allocated memory is still 119.5MB. Free memory was 77.7MB in the beginning and 76.7MB in the end (delta: 942.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 22:59:58,348 INFO L158 Benchmark]: RCFGBuilder took 228.12ms. Allocated memory is still 119.5MB. Free memory was 76.7MB in the beginning and 66.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 22:59:58,348 INFO L158 Benchmark]: TraceAbstraction took 438.49ms. Allocated memory was 119.5MB in the beginning and 161.5MB in the end (delta: 41.9MB). Free memory was 65.5MB in the beginning and 125.6MB in the end (delta: -60.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 22:59:58,349 INFO L158 Benchmark]: Witness Printer took 38.03ms. Allocated memory is still 161.5MB. Free memory was 124.7MB in the beginning and 123.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 22:59:58,353 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 93.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 169.92ms. Allocated memory is still 119.5MB. Free memory was 88.4MB in the beginning and 78.8MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.54ms. Allocated memory is still 119.5MB. Free memory was 78.8MB in the beginning and 77.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.03ms. Allocated memory is still 119.5MB. Free memory was 77.7MB in the beginning and 76.7MB in the end (delta: 942.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 228.12ms. Allocated memory is still 119.5MB. Free memory was 76.7MB in the beginning and 66.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 438.49ms. Allocated memory was 119.5MB in the beginning and 161.5MB in the end (delta: 41.9MB). Free memory was 65.5MB in the beginning and 125.6MB in the end (delta: -60.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 38.03ms. Allocated memory is still 161.5MB. Free memory was 124.7MB in the beginning and 123.5MB in the end (delta: 1.2MB). 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: 33]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x = __VERIFIER_nondet_int(); [L24] int y = __VERIFIER_nondet_int(); [L25] int z = __VERIFIER_nondet_int(); [L26] CALL random() [L31] int x = __VERIFIER_nondet_int(); [L32] COND TRUE x < 0 VAL [x=-2147483648] [L33] -x VAL [x=-2147483648] - UnprovableResult [Line: 33]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 42 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 88 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 46 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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! [2023-02-15 22:59:58,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)