./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/id_b5_o10-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 35987657 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/recursive-simple/id_b5_o10-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3ffe9d53e7df9ed7c01a08260077d50503ae990d73f9d5314e3d980848a06263 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 00:44:48,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 00:44:48,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 00:44:48,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 00:44:48,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 00:44:48,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 00:44:48,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 00:44:48,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 00:44:48,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 00:44:48,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 00:44:48,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 00:44:48,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 00:44:48,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 00:44:48,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 00:44:48,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 00:44:48,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 00:44:48,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 00:44:48,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 00:44:48,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 00:44:48,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 00:44:48,692 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 00:44:48,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 00:44:48,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 00:44:48,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 00:44:48,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 00:44:48,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 00:44:48,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 00:44:48,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 00:44:48,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 00:44:48,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 00:44:48,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 00:44:48,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 00:44:48,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 00:44:48,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 00:44:48,709 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 00:44:48,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 00:44:48,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 00:44:48,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 00:44:48,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 00:44:48,711 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 00:44:48,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 00:44:48,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 00:44:48,721 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-22 00:44:48,757 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 00:44:48,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 00:44:48,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 00:44:48,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 00:44:48,759 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 00:44:48,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 00:44:48,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 00:44:48,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 00:44:48,760 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 00:44:48,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 00:44:48,761 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 00:44:48,762 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 00:44:48,762 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 00:44:48,762 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 00:44:48,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 00:44:48,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 00:44:48,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 00:44:48,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 00:44:48,763 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-22 00:44:48,763 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 00:44:48,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 00:44:48,764 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 00:44:48,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 00:44:48,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 00:44:48,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 00:44:48,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 00:44:48,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:44:48,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 00:44:48,765 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 00:44:48,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 00:44:48,766 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 00:44:48,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 00:44:48,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 00:44:48,766 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ffe9d53e7df9ed7c01a08260077d50503ae990d73f9d5314e3d980848a06263 [2022-07-22 00:44:49,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 00:44:49,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 00:44:49,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 00:44:49,103 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 00:44:49,103 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 00:44:49,105 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_b5_o10-1.c [2022-07-22 00:44:49,156 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eef217461/f52937e79cbb44eeb1f8f5f6efba28c3/FLAGef9e8b54c [2022-07-22 00:44:49,518 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 00:44:49,519 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_b5_o10-1.c [2022-07-22 00:44:49,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eef217461/f52937e79cbb44eeb1f8f5f6efba28c3/FLAGef9e8b54c [2022-07-22 00:44:49,539 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eef217461/f52937e79cbb44eeb1f8f5f6efba28c3 [2022-07-22 00:44:49,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 00:44:49,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 00:44:49,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 00:44:49,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 00:44:49,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 00:44:49,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:44:49" (1/1) ... [2022-07-22 00:44:49,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de7c0d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:49, skipping insertion in model container [2022-07-22 00:44:49,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:44:49" (1/1) ... [2022-07-22 00:44:49,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 00:44:49,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 00:44:49,715 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_b5_o10-1.c[516,529] [2022-07-22 00:44:49,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:44:49,724 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 00:44:49,741 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_b5_o10-1.c[516,529] [2022-07-22 00:44:49,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:44:49,752 INFO L208 MainTranslator]: Completed translation [2022-07-22 00:44:49,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:49 WrapperNode [2022-07-22 00:44:49,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 00:44:49,755 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 00:44:49,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 00:44:49,756 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 00:44:49,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:49" (1/1) ... [2022-07-22 00:44:49,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:49" (1/1) ... [2022-07-22 00:44:49,802 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-07-22 00:44:49,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 00:44:49,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 00:44:49,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 00:44:49,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 00:44:49,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:49" (1/1) ... [2022-07-22 00:44:49,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:49" (1/1) ... [2022-07-22 00:44:49,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:49" (1/1) ... [2022-07-22 00:44:49,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:49" (1/1) ... [2022-07-22 00:44:49,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:49" (1/1) ... [2022-07-22 00:44:49,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:49" (1/1) ... [2022-07-22 00:44:49,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:49" (1/1) ... [2022-07-22 00:44:49,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 00:44:49,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 00:44:49,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 00:44:49,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 00:44:49,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:49" (1/1) ... [2022-07-22 00:44:49,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:44:49,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:44:49,872 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) [2022-07-22 00:44:49,899 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 [2022-07-22 00:44:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 00:44:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 00:44:49,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 00:44:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 00:44:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure id [2022-07-22 00:44:49,918 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2022-07-22 00:44:49,972 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 00:44:49,974 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 00:44:50,089 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 00:44:50,094 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 00:44:50,094 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 00:44:50,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:44:50 BoogieIcfgContainer [2022-07-22 00:44:50,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 00:44:50,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 00:44:50,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 00:44:50,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 00:44:50,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:44:49" (1/3) ... [2022-07-22 00:44:50,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb50bda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:44:50, skipping insertion in model container [2022-07-22 00:44:50,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:44:49" (2/3) ... [2022-07-22 00:44:50,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb50bda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:44:50, skipping insertion in model container [2022-07-22 00:44:50,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:44:50" (3/3) ... [2022-07-22 00:44:50,102 INFO L111 eAbstractionObserver]: Analyzing ICFG id_b5_o10-1.c [2022-07-22 00:44:50,114 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 00:44:50,115 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-22 00:44:50,177 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 00:44:50,182 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=FINITE_AUTOMATA, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@367ae49d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@23c8a411 [2022-07-22 00:44:50,182 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-22 00:44:50,189 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.4375) internal successors, (23), 20 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-22 00:44:50,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-22 00:44:50,210 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:44:50,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-22 00:44:50,211 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-07-22 00:44:50,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:44:50,218 INFO L85 PathProgramCache]: Analyzing trace with hash 890408432, now seen corresponding path program 1 times [2022-07-22 00:44:50,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:44:50,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902417258] [2022-07-22 00:44:50,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:44:50,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:44:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:44:50,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:44:50,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:44:50,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902417258] [2022-07-22 00:44:50,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902417258] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:44:50,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:44:50,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:44:50,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428438294] [2022-07-22 00:44:50,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:44:50,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:44:50,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:44:50,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:44:50,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:44:50,439 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.4375) internal successors, (23), 20 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2022-07-22 00:44:50,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:44:50,484 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2022-07-22 00:44:50,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 00:44:50,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 [2022-07-22 00:44:50,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:44:50,492 INFO L225 Difference]: With dead ends: 27 [2022-07-22 00:44:50,492 INFO L226 Difference]: Without dead ends: 17 [2022-07-22 00:44:50,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:44:50,497 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 31 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:44:50,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 40 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 00:44:50,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-07-22 00:44:50,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-07-22 00:44:50,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-22 00:44:50,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-07-22 00:44:50,538 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 6 [2022-07-22 00:44:50,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:44:50,539 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-07-22 00:44:50,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2022-07-22 00:44:50,539 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-07-22 00:44:50,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-22 00:44:50,540 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:44:50,540 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:44:50,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 00:44:50,540 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-07-22 00:44:50,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:44:50,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1832857669, now seen corresponding path program 1 times [2022-07-22 00:44:50,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:44:50,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770578860] [2022-07-22 00:44:50,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:44:50,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:44:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 00:44:50,560 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 00:44:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 00:44:50,590 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 00:44:50,591 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 00:44:50,593 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-07-22 00:44:50,594 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-07-22 00:44:50,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-07-22 00:44:50,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-07-22 00:44:50,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 00:44:50,601 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-22 00:44:50,607 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 00:44:50,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 12:44:50 BoogieIcfgContainer [2022-07-22 00:44:50,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 00:44:50,643 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 00:44:50,644 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 00:44:50,644 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 00:44:50,644 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:44:50" (3/4) ... [2022-07-22 00:44:50,646 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-22 00:44:50,676 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 00:44:50,676 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 00:44:50,677 INFO L158 Benchmark]: Toolchain (without parser) took 1135.07ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 30.1MB in the beginning and 48.6MB in the end (delta: -18.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 00:44:50,677 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 00:44:50,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.14ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 30.0MB in the beginning and 51.6MB in the end (delta: -21.6MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2022-07-22 00:44:50,678 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.32ms. Allocated memory is still 67.1MB. Free memory was 51.4MB in the beginning and 50.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 00:44:50,679 INFO L158 Benchmark]: Boogie Preprocessor took 18.87ms. Allocated memory is still 67.1MB. Free memory was 50.0MB in the beginning and 49.2MB in the end (delta: 811.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 00:44:50,680 INFO L158 Benchmark]: RCFGBuilder took 272.24ms. Allocated memory is still 67.1MB. Free memory was 49.2MB in the beginning and 40.2MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 00:44:50,682 INFO L158 Benchmark]: TraceAbstraction took 544.95ms. Allocated memory is still 67.1MB. Free memory was 39.7MB in the beginning and 50.3MB in the end (delta: -10.6MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2022-07-22 00:44:50,682 INFO L158 Benchmark]: Witness Printer took 33.16ms. Allocated memory is still 67.1MB. Free memory was 49.9MB in the beginning and 48.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 00:44:50,685 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 52.4MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 209.14ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 30.0MB in the beginning and 51.6MB in the end (delta: -21.6MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.32ms. Allocated memory is still 67.1MB. Free memory was 51.4MB in the beginning and 50.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.87ms. Allocated memory is still 67.1MB. Free memory was 50.0MB in the beginning and 49.2MB in the end (delta: 811.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 272.24ms. Allocated memory is still 67.1MB. Free memory was 49.2MB in the beginning and 40.2MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 544.95ms. Allocated memory is still 67.1MB. Free memory was 39.7MB in the beginning and 50.3MB in the end (delta: -10.6MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Witness Printer took 33.16ms. Allocated memory is still 67.1MB. Free memory was 49.9MB in the beginning and 48.6MB 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: 8]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int input = __VERIFIER_nondet_int(); [L15] CALL id(input) VAL [\old(x)=-2147483648] [L7] COND FALSE !(x==0) VAL [\old(x)=-2147483648, x=-2147483648] [L8] x-1 VAL [\old(x)=-2147483648, x=-2147483648] - UnprovableResult [Line: 8]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 8]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 8]: 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 2 procedures, 24 locations, 4 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, 32 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 17 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 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! [2022-07-22 00:44:50,732 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)