./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/functions_1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 574ddb4e Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-acceleration/functions_1-1.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 d9fc6ec4480297fee1f7419ded78cafcfaf309d48a05ca3c98ab67dd7817eba5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 06:27:19,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 06:27:19,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 06:27:19,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 06:27:19,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 06:27:19,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 06:27:19,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 06:27:19,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 06:27:19,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 06:27:19,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 06:27:19,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 06:27:19,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 06:27:19,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 06:27:19,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 06:27:19,952 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 06:27:19,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 06:27:19,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 06:27:19,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 06:27:19,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 06:27:19,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 06:27:19,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 06:27:19,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 06:27:19,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 06:27:19,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 06:27:19,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 06:27:19,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 06:27:19,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 06:27:19,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 06:27:19,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 06:27:19,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 06:27:19,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 06:27:19,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 06:27:19,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 06:27:19,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 06:27:19,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 06:27:19,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 06:27:19,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 06:27:19,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 06:27:19,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 06:27:19,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 06:27:19,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 06:27:19,991 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-17 06:27:20,022 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 06:27:20,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 06:27:20,023 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 06:27:20,023 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 06:27:20,024 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 06:27:20,024 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 06:27:20,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 06:27:20,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 06:27:20,025 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 06:27:20,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 06:27:20,026 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 06:27:20,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 06:27:20,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 06:27:20,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 06:27:20,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 06:27:20,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 06:27:20,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 06:27:20,027 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 06:27:20,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 06:27:20,027 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 06:27:20,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 06:27:20,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 06:27:20,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 06:27:20,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 06:27:20,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 06:27:20,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 06:27:20,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 06:27:20,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 06:27:20,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 06:27:20,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 06:27:20,029 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 06:27:20,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 06:27:20,029 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 06:27:20,029 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 06:27:20,029 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 06:27:20,030 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9fc6ec4480297fee1f7419ded78cafcfaf309d48a05ca3c98ab67dd7817eba5 [2023-02-17 06:27:20,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 06:27:20,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 06:27:20,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 06:27:20,288 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 06:27:20,288 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 06:27:20,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/functions_1-1.c [2023-02-17 06:27:21,323 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 06:27:21,521 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 06:27:21,522 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/functions_1-1.c [2023-02-17 06:27:21,528 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a37aabd72/7b1adce5a20247d1af202a0e51b40eb1/FLAG8f212eb51 [2023-02-17 06:27:21,544 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a37aabd72/7b1adce5a20247d1af202a0e51b40eb1 [2023-02-17 06:27:21,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 06:27:21,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 06:27:21,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 06:27:21,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 06:27:21,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 06:27:21,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 06:27:21" (1/1) ... [2023-02-17 06:27:21,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f3afc3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:27:21, skipping insertion in model container [2023-02-17 06:27:21,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 06:27:21" (1/1) ... [2023-02-17 06:27:21,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 06:27:21,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 06:27:21,695 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/loop-acceleration/functions_1-1.c[325,338] [2023-02-17 06:27:21,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 06:27:21,715 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 06:27:21,726 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/loop-acceleration/functions_1-1.c[325,338] [2023-02-17 06:27:21,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 06:27:21,738 INFO L208 MainTranslator]: Completed translation [2023-02-17 06:27:21,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:27:21 WrapperNode [2023-02-17 06:27:21,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 06:27:21,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 06:27:21,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 06:27:21,740 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 06:27:21,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:27:21" (1/1) ... [2023-02-17 06:27:21,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:27:21" (1/1) ... [2023-02-17 06:27:21,767 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 28 [2023-02-17 06:27:21,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 06:27:21,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 06:27:21,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 06:27:21,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 06:27:21,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:27:21" (1/1) ... [2023-02-17 06:27:21,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:27:21" (1/1) ... [2023-02-17 06:27:21,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:27:21" (1/1) ... [2023-02-17 06:27:21,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:27:21" (1/1) ... [2023-02-17 06:27:21,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:27:21" (1/1) ... [2023-02-17 06:27:21,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:27:21" (1/1) ... [2023-02-17 06:27:21,784 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:27:21" (1/1) ... [2023-02-17 06:27:21,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:27:21" (1/1) ... [2023-02-17 06:27:21,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 06:27:21,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 06:27:21,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 06:27:21,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 06:27:21,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:27:21" (1/1) ... [2023-02-17 06:27:21,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 06:27:21,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:27:21,815 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-17 06:27:21,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-17 06:27:21,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 06:27:21,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 06:27:21,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 06:27:21,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 06:27:21,881 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 06:27:21,882 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 06:27:22,009 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 06:27:22,013 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 06:27:22,013 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-17 06:27:22,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 06:27:22 BoogieIcfgContainer [2023-02-17 06:27:22,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 06:27:22,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 06:27:22,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 06:27:22,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 06:27:22,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 06:27:21" (1/3) ... [2023-02-17 06:27:22,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fa14c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 06:27:22, skipping insertion in model container [2023-02-17 06:27:22,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 06:27:21" (2/3) ... [2023-02-17 06:27:22,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fa14c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 06:27:22, skipping insertion in model container [2023-02-17 06:27:22,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 06:27:22" (3/3) ... [2023-02-17 06:27:22,027 INFO L112 eAbstractionObserver]: Analyzing ICFG functions_1-1.c [2023-02-17 06:27:22,039 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 06:27:22,040 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-17 06:27:22,079 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 06:27:22,084 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;@720ac84d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 06:27:22,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-17 06:27:22,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:27:22,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-17 06:27:22,093 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:27:22,094 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-17 06:27:22,094 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:27:22,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:27:22,100 INFO L85 PathProgramCache]: Analyzing trace with hash 889635821, now seen corresponding path program 1 times [2023-02-17 06:27:22,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:27:22,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972230199] [2023-02-17 06:27:22,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:27:22,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:27:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:27:22,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:27:22,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:27:22,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972230199] [2023-02-17 06:27:22,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972230199] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 06:27:22,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 06:27:22,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 06:27:22,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852264216] [2023-02-17 06:27:22,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 06:27:22,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 06:27:22,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:27:22,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 06:27:22,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 06:27:22,361 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:27:22,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:27:22,386 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2023-02-17 06:27:22,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 06:27:22,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-17 06:27:22,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:27:22,401 INFO L225 Difference]: With dead ends: 22 [2023-02-17 06:27:22,416 INFO L226 Difference]: Without dead ends: 10 [2023-02-17 06:27:22,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 06:27:22,421 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 1 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 18 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 [2023-02-17 06:27:22,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 18 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 06:27:22,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-02-17 06:27:22,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-02-17 06:27:22,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:27:22,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-02-17 06:27:22,452 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2023-02-17 06:27:22,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:27:22,452 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-02-17 06:27:22,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:27:22,453 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-02-17 06:27:22,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-17 06:27:22,453 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:27:22,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 06:27:22,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 06:27:22,454 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:27:22,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:27:22,455 INFO L85 PathProgramCache]: Analyzing trace with hash 294764431, now seen corresponding path program 1 times [2023-02-17 06:27:22,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:27:22,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944121713] [2023-02-17 06:27:22,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:27:22,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:27:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:27:22,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:27:22,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:27:22,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944121713] [2023-02-17 06:27:22,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944121713] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 06:27:22,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639461030] [2023-02-17 06:27:22,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:27:22,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:27:22,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:27:22,585 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 06:27:22,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-17 06:27:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:27:22,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-17 06:27:22,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:27:22,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:27:22,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 06:27:22,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:27:22,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639461030] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 06:27:22,724 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 06:27:22,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-02-17 06:27:22,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673047276] [2023-02-17 06:27:22,726 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 06:27:22,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-17 06:27:22,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:27:22,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-17 06:27:22,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-02-17 06:27:22,728 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:27:22,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:27:22,766 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2023-02-17 06:27:22,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-17 06:27:22,767 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 8 [2023-02-17 06:27:22,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:27:22,767 INFO L225 Difference]: With dead ends: 17 [2023-02-17 06:27:22,767 INFO L226 Difference]: Without dead ends: 13 [2023-02-17 06:27:22,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2023-02-17 06:27:22,769 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 6 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 06:27:22,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 27 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 06:27:22,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-02-17 06:27:22,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-02-17 06:27:22,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 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) [2023-02-17 06:27:22,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-02-17 06:27:22,772 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 8 [2023-02-17 06:27:22,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:27:22,772 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-02-17 06:27:22,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:27:22,773 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-02-17 06:27:22,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-17 06:27:22,773 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:27:22,773 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1] [2023-02-17 06:27:22,782 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-17 06:27:22,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:27:22,979 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:27:22,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:27:22,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1489810771, now seen corresponding path program 2 times [2023-02-17 06:27:22,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:27:22,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337150511] [2023-02-17 06:27:22,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:27:22,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:27:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:27:23,173 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:27:23,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:27:23,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337150511] [2023-02-17 06:27:23,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337150511] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 06:27:23,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304612028] [2023-02-17 06:27:23,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 06:27:23,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:27:23,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:27:23,176 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 06:27:23,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-17 06:27:23,215 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 06:27:23,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 06:27:23,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 27 conjunts are in the unsatisfiable core [2023-02-17 06:27:23,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:27:23,262 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:27:23,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 06:27:23,358 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:27:23,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304612028] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 06:27:23,358 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 06:27:23,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2023-02-17 06:27:23,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732312605] [2023-02-17 06:27:23,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 06:27:23,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-17 06:27:23,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:27:23,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-17 06:27:23,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2023-02-17 06:27:23,362 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:27:23,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:27:23,550 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2023-02-17 06:27:23,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-17 06:27:23,551 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 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 12 [2023-02-17 06:27:23,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:27:23,552 INFO L225 Difference]: With dead ends: 25 [2023-02-17 06:27:23,552 INFO L226 Difference]: Without dead ends: 21 [2023-02-17 06:27:23,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 12 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=223, Invalid=589, Unknown=0, NotChecked=0, Total=812 [2023-02-17 06:27:23,553 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 32 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 06:27:23,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 36 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 06:27:23,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-02-17 06:27:23,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-02-17 06:27:23,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:27:23,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2023-02-17 06:27:23,558 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 12 [2023-02-17 06:27:23,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:27:23,558 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2023-02-17 06:27:23,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:27:23,558 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2023-02-17 06:27:23,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-17 06:27:23,559 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 06:27:23,559 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 1, 1, 1, 1, 1, 1] [2023-02-17 06:27:23,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-17 06:27:23,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-02-17 06:27:23,765 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 06:27:23,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 06:27:23,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1781144283, now seen corresponding path program 3 times [2023-02-17 06:27:23,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 06:27:23,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949933140] [2023-02-17 06:27:23,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 06:27:23,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 06:27:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 06:27:24,092 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:27:24,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 06:27:24,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949933140] [2023-02-17 06:27:24,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949933140] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 06:27:24,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251424116] [2023-02-17 06:27:24,097 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 06:27:24,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:27:24,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 06:27:24,100 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-17 06:27:24,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-17 06:27:24,174 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-02-17 06:27:24,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 06:27:24,175 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 64 conjunts are in the unsatisfiable core [2023-02-17 06:27:24,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 06:27:24,310 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 06:27:24,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 06:27:24,644 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-02-17 06:27:24,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251424116] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-17 06:27:24,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-02-17 06:27:24,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17, 18] total 22 [2023-02-17 06:27:24,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204750569] [2023-02-17 06:27:24,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 06:27:24,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-17 06:27:24,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 06:27:24,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-17 06:27:24,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=397, Unknown=0, NotChecked=0, Total=462 [2023-02-17 06:27:24,646 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:27:24,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 06:27:24,697 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2023-02-17 06:27:24,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-17 06:27:24,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-02-17 06:27:24,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 06:27:24,698 INFO L225 Difference]: With dead ends: 21 [2023-02-17 06:27:24,698 INFO L226 Difference]: Without dead ends: 0 [2023-02-17 06:27:24,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 19 SyntacticMatches, 17 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2023-02-17 06:27:24,699 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 06:27:24,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 7 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 06:27:24,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-17 06:27:24,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-17 06:27:24,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:27:24,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-17 06:27:24,700 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2023-02-17 06:27:24,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 06:27:24,701 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-17 06:27:24,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 06:27:24,701 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-17 06:27:24,701 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-17 06:27:24,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-17 06:27:24,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-17 06:27:24,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 06:27:24,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-17 06:27:24,917 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-17 06:27:24,918 INFO L895 garLoopResultBuilder]: At program point L19-2(lines 19 21) the Hoare annotation is: (let ((.cse15 (mod |ULTIMATE.start_f_#res#1| 4294967296)) (.cse12 (mod |ULTIMATE.start_f_#res#1| 2)) (.cse8 (mod |ULTIMATE.start_main_~x~0#1| 2)) (.cse11 (mod |ULTIMATE.start_main_~x~0#1| 4294967296))) (let ((.cse9 (< .cse11 0)) (.cse10 (= 0 .cse8)) (.cse13 (= 0 .cse12)) (.cse14 (< .cse15 0))) (let ((.cse4 (< (mod (+ |ULTIMATE.start_main_~x~0#1| 2) 4294967296) 268435455)) (.cse6 (< (mod (+ |ULTIMATE.start_f_#res#1| 2) 4294967296) 268435455)) (.cse0 (or (= 0 (mod .cse12 4294967296)) (and (not .cse13) .cse14))) (.cse5 (< .cse15 268435455)) (.cse1 (or (= 0 (mod (+ .cse12 4294967294) 4294967296)) .cse13 (not .cse14))) (.cse2 (or (= 0 (mod .cse8 4294967296)) (and .cse9 (not .cse10)))) (.cse7 (< .cse11 268435455)) (.cse3 (or (= 0 (mod (+ .cse8 4294967294) 4294967296)) (not .cse9) .cse10))) (or (and .cse0 .cse1 .cse2 .cse3) (and (<= 0 (+ |ULTIMATE.start_f_#res#1| (- 6))) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| (- 6))) .cse0 .cse1 .cse2 (<= |ULTIMATE.start_main_~x~0#1| 6) (<= |ULTIMATE.start_f_#res#1| 6) .cse3) (and (<= |ULTIMATE.start_f_#res#1| 2) .cse0 (<= 0 (+ |ULTIMATE.start_main_~x~0#1| (- 2))) .cse1 .cse2 (<= 0 (+ |ULTIMATE.start_f_#res#1| (- 2))) (<= |ULTIMATE.start_main_~x~0#1| 2) .cse3) (and .cse4 .cse0 .cse5 .cse6 .cse1 .cse2 .cse7 .cse3) (and (< (mod (+ |ULTIMATE.start_f_#res#1| 4) 4294967296) 268435455) .cse4 (< (mod (+ |ULTIMATE.start_main_~x~0#1| 4) 4294967296) 268435455) .cse0 .cse5 .cse6 .cse1 .cse2 .cse7 .cse3) (and (= |ULTIMATE.start_main_~x~0#1| 0) .cse2 .cse3) (and .cse0 .cse5 .cse1 .cse2 .cse7 .cse3) (and (<= 0 (+ |ULTIMATE.start_f_#res#1| (- 4))) (<= |ULTIMATE.start_f_#res#1| 4) .cse0 .cse5 .cse1 .cse2 (<= 0 (+ |ULTIMATE.start_main_~x~0#1| (- 4))) (<= |ULTIMATE.start_main_~x~0#1| 4) .cse7 .cse3))))) [2023-02-17 06:27:24,919 INFO L895 garLoopResultBuilder]: At program point f_returnLabel#1(lines 12 14) the Hoare annotation is: (let ((.cse15 (mod |ULTIMATE.start_f_#res#1| 4294967296)) (.cse12 (mod |ULTIMATE.start_f_#res#1| 2)) (.cse8 (mod |ULTIMATE.start_main_~x~0#1| 2)) (.cse11 (mod |ULTIMATE.start_main_~x~0#1| 4294967296))) (let ((.cse9 (< .cse11 0)) (.cse10 (= 0 .cse8)) (.cse13 (= 0 .cse12)) (.cse14 (< .cse15 0))) (let ((.cse6 (< (mod (+ |ULTIMATE.start_main_~x~0#1| 2) 4294967296) 268435455)) (.cse5 (< .cse15 268435455)) (.cse7 (< (mod (+ |ULTIMATE.start_f_#res#1| 2) 4294967296) 268435455)) (.cse0 (or (= 0 (mod .cse12 4294967296)) (and (not .cse13) .cse14))) (.cse1 (or (= 0 (mod (+ .cse12 4294967294) 4294967296)) .cse13 (not .cse14))) (.cse2 (or (= 0 (mod .cse8 4294967296)) (and .cse9 (not .cse10)))) (.cse4 (< .cse11 268435455)) (.cse3 (or (= 0 (mod (+ .cse8 4294967294) 4294967296)) (not .cse9) .cse10))) (or (and (<= |ULTIMATE.start_f_#res#1| 2) (= |ULTIMATE.start_main_~x~0#1| 0) .cse0 .cse1 .cse2 (<= 0 (+ |ULTIMATE.start_f_#res#1| (- 2))) .cse3) (and .cse0 .cse1 .cse2 .cse4 .cse3) (and (<= 0 (+ |ULTIMATE.start_f_#res#1| (- 4))) (<= |ULTIMATE.start_f_#res#1| 4) .cse0 .cse5 (<= 0 (+ |ULTIMATE.start_main_~x~0#1| (- 2))) .cse1 .cse2 (<= |ULTIMATE.start_main_~x~0#1| 2) .cse3) (and .cse6 (< (mod (+ |ULTIMATE.start_main_~x~0#1| 4) 4294967296) 268435455) .cse0 .cse5 .cse7 .cse1 .cse2 .cse4 .cse3) (and .cse6 .cse0 .cse5 .cse1 .cse2 .cse4 .cse3) (and (< (mod (+ |ULTIMATE.start_f_#res#1| 4) 4294967296) 268435455) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| (- 6))) .cse0 .cse5 .cse7 .cse1 .cse2 (<= |ULTIMATE.start_main_~x~0#1| 6) .cse4 .cse3) (and (<= 0 (+ |ULTIMATE.start_f_#res#1| (- 6))) .cse0 .cse1 .cse2 (<= 0 (+ |ULTIMATE.start_main_~x~0#1| (- 4))) (<= |ULTIMATE.start_main_~x~0#1| 4) .cse4 (<= |ULTIMATE.start_f_#res#1| 6) .cse3))))) [2023-02-17 06:27:24,919 INFO L899 garLoopResultBuilder]: For program point L19-3(lines 19 21) no Hoare annotation was computed. [2023-02-17 06:27:24,919 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-17 06:27:24,919 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2023-02-17 06:27:24,919 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-17 06:27:24,919 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-17 06:27:24,920 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2023-02-17 06:27:24,920 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 24) no Hoare annotation was computed. [2023-02-17 06:27:24,920 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2023-02-17 06:27:24,920 INFO L902 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: true [2023-02-17 06:27:24,939 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2023-02-17 06:27:24,942 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-17 06:27:24,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.02 06:27:24 BoogieIcfgContainer [2023-02-17 06:27:24,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-17 06:27:24,974 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-17 06:27:24,974 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-17 06:27:24,974 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-17 06:27:24,974 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 06:27:22" (3/4) ... [2023-02-17 06:27:24,977 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-17 06:27:24,997 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-02-17 06:27:24,997 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-17 06:27:24,997 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-17 06:27:24,997 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-17 06:27:25,014 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0)) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2)) || (((((((0 <= \result + -6 && 0 <= x + -6) && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && x <= 6) && \result <= 6) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || (((((((\result <= 2 && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && 0 <= x + -2) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && 0 <= \result + -2) && x <= 2) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || ((((((((x + 2) % 4294967296 < 268435455 && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && \result % 4294967296 < 268435455) && (\result + 2) % 4294967296 < 268435455) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && x % 4294967296 < 268435455) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || ((((((((((\result + 4) % 4294967296 < 268435455 && (x + 2) % 4294967296 < 268435455) && (x + 4) % 4294967296 < 268435455) && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && \result % 4294967296 < 268435455) && (\result + 2) % 4294967296 < 268435455) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && x % 4294967296 < 268435455) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || ((x == 0 && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || ((((((0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0)) && \result % 4294967296 < 268435455) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && x % 4294967296 < 268435455) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || (((((((((0 <= \result + -4 && \result <= 4) && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && \result % 4294967296 < 268435455) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && 0 <= x + -4) && x <= 4) && x % 4294967296 < 268435455) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2)) [2023-02-17 06:27:25,016 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((\result <= 2 && x == 0) && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && 0 <= \result + -2) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2)) || (((((0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0)) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && x % 4294967296 < 268435455) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || ((((((((0 <= \result + -4 && \result <= 4) && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && \result % 4294967296 < 268435455) && 0 <= x + -2) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && x <= 2) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || (((((((((x + 2) % 4294967296 < 268435455 && (x + 4) % 4294967296 < 268435455) && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && \result % 4294967296 < 268435455) && (\result + 2) % 4294967296 < 268435455) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && x % 4294967296 < 268435455) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || (((((((x + 2) % 4294967296 < 268435455 && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && \result % 4294967296 < 268435455) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && x % 4294967296 < 268435455) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || ((((((((((\result + 4) % 4294967296 < 268435455 && 0 <= x + -6) && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && \result % 4294967296 < 268435455) && (\result + 2) % 4294967296 < 268435455) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && x <= 6) && x % 4294967296 < 268435455) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || ((((((((0 <= \result + -6 && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && 0 <= x + -4) && x <= 4) && x % 4294967296 < 268435455) && \result <= 6) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2)) [2023-02-17 06:27:25,019 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-17 06:27:25,019 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-17 06:27:25,020 INFO L158 Benchmark]: Toolchain (without parser) took 3472.29ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 126.3MB in the beginning and 150.1MB in the end (delta: -23.8MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2023-02-17 06:27:25,020 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 130.0MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 06:27:25,020 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.00ms. Allocated memory is still 157.3MB. Free memory was 126.3MB in the beginning and 116.5MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-17 06:27:25,020 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.88ms. Allocated memory is still 157.3MB. Free memory was 116.5MB in the beginning and 114.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 06:27:25,020 INFO L158 Benchmark]: Boogie Preprocessor took 17.42ms. Allocated memory is still 157.3MB. Free memory was 114.9MB in the beginning and 113.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-17 06:27:25,021 INFO L158 Benchmark]: RCFGBuilder took 234.75ms. Allocated memory is still 157.3MB. Free memory was 113.8MB in the beginning and 126.0MB in the end (delta: -12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-17 06:27:25,021 INFO L158 Benchmark]: TraceAbstraction took 2950.97ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 125.1MB in the beginning and 153.2MB in the end (delta: -28.2MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2023-02-17 06:27:25,021 INFO L158 Benchmark]: Witness Printer took 45.52ms. Allocated memory is still 188.7MB. Free memory was 153.2MB in the beginning and 150.1MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-17 06:27:25,023 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 130.0MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 189.00ms. Allocated memory is still 157.3MB. Free memory was 126.3MB in the beginning and 116.5MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.88ms. Allocated memory is still 157.3MB. Free memory was 116.5MB in the beginning and 114.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.42ms. Allocated memory is still 157.3MB. Free memory was 114.9MB in the beginning and 113.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 234.75ms. Allocated memory is still 157.3MB. Free memory was 113.8MB in the beginning and 126.0MB in the end (delta: -12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2950.97ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 125.1MB in the beginning and 153.2MB in the end (delta: -28.2MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Witness Printer took 45.52ms. Allocated memory is still 188.7MB. Free memory was 153.2MB in the beginning and 150.1MB in the end (delta: 3.2MB). 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 - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 4, TraceHistogramMax: 7, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 88 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 63 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 25 mSDtfsCounter, 115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 130 GetRequests, 43 SyntacticMatches, 26 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=3, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 17 NumberOfFragments, 1478 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 1254 SizeOfPredicates, 49 NumberOfNonLiveVariables, 204 ConjunctsInSsa, 102 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 49/177 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((((((((((0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0)) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2)) || (((((((0 <= \result + -6 && 0 <= x + -6) && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && x <= 6) && \result <= 6) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || (((((((\result <= 2 && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && 0 <= x + -2) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && 0 <= \result + -2) && x <= 2) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || ((((((((x + 2) % 4294967296 < 268435455 && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && \result % 4294967296 < 268435455) && (\result + 2) % 4294967296 < 268435455) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && x % 4294967296 < 268435455) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || ((((((((((\result + 4) % 4294967296 < 268435455 && (x + 2) % 4294967296 < 268435455) && (x + 4) % 4294967296 < 268435455) && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && \result % 4294967296 < 268435455) && (\result + 2) % 4294967296 < 268435455) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && x % 4294967296 < 268435455) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || ((x == 0 && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || ((((((0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0)) && \result % 4294967296 < 268435455) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && x % 4294967296 < 268435455) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || (((((((((0 <= \result + -4 && \result <= 4) && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && \result % 4294967296 < 268435455) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && 0 <= x + -4) && x <= 4) && x % 4294967296 < 268435455) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2)) - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: (((((((((((\result <= 2 && x == 0) && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && 0 <= \result + -2) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2)) || (((((0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0)) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && x % 4294967296 < 268435455) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || ((((((((0 <= \result + -4 && \result <= 4) && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && \result % 4294967296 < 268435455) && 0 <= x + -2) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && x <= 2) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || (((((((((x + 2) % 4294967296 < 268435455 && (x + 4) % 4294967296 < 268435455) && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && \result % 4294967296 < 268435455) && (\result + 2) % 4294967296 < 268435455) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && x % 4294967296 < 268435455) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || (((((((x + 2) % 4294967296 < 268435455 && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && \result % 4294967296 < 268435455) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && x % 4294967296 < 268435455) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || ((((((((((\result + 4) % 4294967296 < 268435455 && 0 <= x + -6) && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && \result % 4294967296 < 268435455) && (\result + 2) % 4294967296 < 268435455) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && x <= 6) && x % 4294967296 < 268435455) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2))) || ((((((((0 <= \result + -6 && (0 == \result % 2 % 4294967296 || (!(0 == \result % 2) && \result % 4294967296 < 0))) && ((0 == (\result % 2 + 4294967294) % 4294967296 || 0 == \result % 2) || !(\result % 4294967296 < 0))) && (0 == x % 2 % 4294967296 || (x % 4294967296 < 0 && !(0 == x % 2)))) && 0 <= x + -4) && x <= 4) && x % 4294967296 < 268435455) && \result <= 6) && ((0 == (x % 2 + 4294967294) % 4294967296 || !(x % 4294967296 < 0)) || 0 == x % 2)) - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-02-17 06:27:25,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE