./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/mod3.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-industry-pattern/mod3.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 4cb78a0927aaaf985fd071d82fe186e3e3838d2825c1d104414277cfde8a2d4d --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 15:42:38,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 15:42:38,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 15:42:38,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 15:42:38,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 15:42:38,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 15:42:38,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 15:42:38,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 15:42:38,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 15:42:38,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 15:42:38,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 15:42:38,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 15:42:38,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 15:42:38,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 15:42:38,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 15:42:38,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 15:42:38,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 15:42:38,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 15:42:38,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 15:42:38,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 15:42:38,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 15:42:38,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 15:42:38,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 15:42:38,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 15:42:38,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 15:42:38,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 15:42:38,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 15:42:38,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 15:42:38,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 15:42:38,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 15:42:38,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 15:42:38,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 15:42:38,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 15:42:38,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 15:42:38,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 15:42:38,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 15:42:38,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 15:42:38,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 15:42:38,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 15:42:38,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 15:42:38,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 15:42:38,898 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-18 15:42:38,925 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 15:42:38,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 15:42:38,926 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 15:42:38,926 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 15:42:38,927 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 15:42:38,927 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 15:42:38,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 15:42:38,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 15:42:38,929 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 15:42:38,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 15:42:38,930 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 15:42:38,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 15:42:38,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 15:42:38,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 15:42:38,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 15:42:38,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 15:42:38,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 15:42:38,931 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 15:42:38,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 15:42:38,931 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 15:42:38,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 15:42:38,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 15:42:38,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 15:42:38,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 15:42:38,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 15:42:38,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 15:42:38,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 15:42:38,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 15:42:38,933 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 15:42:38,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 15:42:38,933 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 15:42:38,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 15:42:38,934 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 15:42:38,934 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 15:42:38,934 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 15:42:38,934 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4cb78a0927aaaf985fd071d82fe186e3e3838d2825c1d104414277cfde8a2d4d [2023-02-18 15:42:39,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 15:42:39,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 15:42:39,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 15:42:39,213 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 15:42:39,213 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 15:42:39,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-industry-pattern/mod3.c [2023-02-18 15:42:40,342 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 15:42:40,542 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 15:42:40,543 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/mod3.c [2023-02-18 15:42:40,547 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e45a036a/1c0835a942864a2898fb9b5a8a0622f1/FLAGd8462ff9b [2023-02-18 15:42:40,558 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e45a036a/1c0835a942864a2898fb9b5a8a0622f1 [2023-02-18 15:42:40,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 15:42:40,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 15:42:40,562 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 15:42:40,562 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 15:42:40,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 15:42:40,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 03:42:40" (1/1) ... [2023-02-18 15:42:40,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@152fb26c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:42:40, skipping insertion in model container [2023-02-18 15:42:40,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 03:42:40" (1/1) ... [2023-02-18 15:42:40,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 15:42:40,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 15:42:40,692 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-industry-pattern/mod3.c[394,407] [2023-02-18 15:42:40,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 15:42:40,723 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 15:42:40,736 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-industry-pattern/mod3.c[394,407] [2023-02-18 15:42:40,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 15:42:40,760 INFO L208 MainTranslator]: Completed translation [2023-02-18 15:42:40,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:42:40 WrapperNode [2023-02-18 15:42:40,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 15:42:40,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 15:42:40,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 15:42:40,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 15:42:40,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:42:40" (1/1) ... [2023-02-18 15:42:40,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:42:40" (1/1) ... [2023-02-18 15:42:40,794 INFO L138 Inliner]: procedures = 13, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52 [2023-02-18 15:42:40,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 15:42:40,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 15:42:40,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 15:42:40,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 15:42:40,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:42:40" (1/1) ... [2023-02-18 15:42:40,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:42:40" (1/1) ... [2023-02-18 15:42:40,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:42:40" (1/1) ... [2023-02-18 15:42:40,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:42:40" (1/1) ... [2023-02-18 15:42:40,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:42:40" (1/1) ... [2023-02-18 15:42:40,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:42:40" (1/1) ... [2023-02-18 15:42:40,827 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:42:40" (1/1) ... [2023-02-18 15:42:40,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:42:40" (1/1) ... [2023-02-18 15:42:40,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 15:42:40,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 15:42:40,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 15:42:40,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 15:42:40,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:42:40" (1/1) ... [2023-02-18 15:42:40,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 15:42:40,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 15:42:40,870 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-18 15:42:40,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-18 15:42:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 15:42:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 15:42:40,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 15:42:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 15:42:40,952 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 15:42:40,954 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 15:42:41,058 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 15:42:41,065 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 15:42:41,066 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 15:42:41,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 03:42:41 BoogieIcfgContainer [2023-02-18 15:42:41,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 15:42:41,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 15:42:41,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 15:42:41,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 15:42:41,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 03:42:40" (1/3) ... [2023-02-18 15:42:41,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e092ae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 03:42:41, skipping insertion in model container [2023-02-18 15:42:41,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 03:42:40" (2/3) ... [2023-02-18 15:42:41,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e092ae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 03:42:41, skipping insertion in model container [2023-02-18 15:42:41,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 03:42:41" (3/3) ... [2023-02-18 15:42:41,074 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3.c [2023-02-18 15:42:41,096 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 15:42:41,097 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-18 15:42:41,135 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 15:42:41,141 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;@b1eb1d3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 15:42:41,142 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-18 15:42:41,145 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 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) [2023-02-18 15:42:41,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 15:42:41,150 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 15:42:41,151 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 15:42:41,152 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 15:42:41,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 15:42:41,156 INFO L85 PathProgramCache]: Analyzing trace with hash 890278313, now seen corresponding path program 1 times [2023-02-18 15:42:41,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 15:42:41,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36590779] [2023-02-18 15:42:41,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 15:42:41,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 15:42:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 15:42:41,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 15:42:41,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 15:42:41,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36590779] [2023-02-18 15:42:41,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36590779] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 15:42:41,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 15:42:41,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 15:42:41,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509572880] [2023-02-18 15:42:41,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 15:42:41,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-18 15:42:41,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 15:42:41,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-18 15:42:41,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 15:42:41,345 INFO L87 Difference]: Start difference. First operand has 16 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 15 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 15:42:41,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 15:42:41,363 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2023-02-18 15:42:41,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-18 15:42:41,366 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-18 15:42:41,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 15:42:41,372 INFO L225 Difference]: With dead ends: 25 [2023-02-18 15:42:41,372 INFO L226 Difference]: Without dead ends: 11 [2023-02-18 15:42:41,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 15:42:41,380 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 15:42:41,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 15:42:41,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-02-18 15:42:41,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-02-18 15:42:41,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 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) [2023-02-18 15:42:41,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2023-02-18 15:42:41,409 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 14 transitions. Word has length 6 [2023-02-18 15:42:41,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 15:42:41,410 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-02-18 15:42:41,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 15:42:41,411 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2023-02-18 15:42:41,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 15:42:41,411 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 15:42:41,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 15:42:41,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 15:42:41,412 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 15:42:41,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 15:42:41,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1806865054, now seen corresponding path program 1 times [2023-02-18 15:42:41,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 15:42:41,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526325012] [2023-02-18 15:42:41,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 15:42:41,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 15:42:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 15:42:41,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 15:42:41,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 15:42:41,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526325012] [2023-02-18 15:42:41,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526325012] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 15:42:41,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 15:42:41,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 15:42:41,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784077070] [2023-02-18 15:42:41,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 15:42:41,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 15:42:41,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 15:42:41,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 15:42:41,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 15:42:41,558 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 15:42:41,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 15:42:41,590 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2023-02-18 15:42:41,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 15:42:41,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-18 15:42:41,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 15:42:41,592 INFO L225 Difference]: With dead ends: 20 [2023-02-18 15:42:41,592 INFO L226 Difference]: Without dead ends: 16 [2023-02-18 15:42:41,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 15:42:41,594 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 15:42:41,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 22 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 15:42:41,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-02-18 15:42:41,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2023-02-18 15:42:41,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 15:42:41,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2023-02-18 15:42:41,610 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 7 [2023-02-18 15:42:41,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 15:42:41,611 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2023-02-18 15:42:41,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 15:42:41,611 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2023-02-18 15:42:41,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 15:42:41,612 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 15:42:41,612 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 15:42:41,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 15:42:41,613 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 15:42:41,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 15:42:41,613 INFO L85 PathProgramCache]: Analyzing trace with hash 694220730, now seen corresponding path program 1 times [2023-02-18 15:42:41,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 15:42:41,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098302852] [2023-02-18 15:42:41,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 15:42:41,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 15:42:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 15:42:42,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 15:42:42,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 15:42:42,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098302852] [2023-02-18 15:42:42,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098302852] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 15:42:42,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 15:42:42,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 15:42:42,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395859501] [2023-02-18 15:42:42,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 15:42:42,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 15:42:42,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 15:42:42,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 15:42:42,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 15:42:42,220 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 15:42:42,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 15:42:42,386 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2023-02-18 15:42:42,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 15:42:42,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2023-02-18 15:42:42,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 15:42:42,387 INFO L225 Difference]: With dead ends: 25 [2023-02-18 15:42:42,387 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 15:42:42,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 15:42:42,389 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 15:42:42,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 29 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 15:42:42,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 15:42:42,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 15:42:42,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 15:42:42,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 15:42:42,391 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2023-02-18 15:42:42,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 15:42:42,391 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 15:42:42,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 15:42:42,391 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 15:42:42,391 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 15:42:42,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-18 15:42:42,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 15:42:42,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 15:42:42,403 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 15:42:42,403 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 28) no Hoare annotation was computed. [2023-02-18 15:42:42,411 INFO L895 garLoopResultBuilder]: At program point L25-2(lines 18 31) the Hoare annotation is: (let ((.cse20 (div |ULTIMATE.start_main_~x~0#1| 4294967296))) (let ((.cse17 (* (- 4294967296) .cse20))) (let ((.cse9 (div (+ |ULTIMATE.start_main_~x~0#1| .cse17) 3))) (let ((.cse18 (* (- 3) .cse9))) (let ((.cse5 (* 4294967296 .cse20)) (.cse16 (+ |ULTIMATE.start_main_~x~0#1| .cse17 .cse18))) (let ((.cse19 (* .cse20 (- 1))) (.cse14 (= 0 .cse16)) (.cse15 (<= (+ (* (- 1) |ULTIMATE.start_main_~x~0#1|) .cse5) 0))) (let ((.cse2 (not .cse15)) (.cse4 (not .cse14)) (.cse0 (or .cse14 .cse15)) (.cse1 (+ .cse19 (div (+ |ULTIMATE.start_main_~x~0#1| .cse18) 4294967296))) (.cse3 (+ .cse19 (div (+ |ULTIMATE.start_main_~x~0#1| .cse18 (- 3)) 4294967296)))) (or (and .cse0 (<= (+ .cse1 1) 0)) (and .cse2 (<= (+ .cse3 1) 0) .cse4) (let ((.cse6 (+ (+ |ULTIMATE.start_main_~x~0#1| .cse17 .cse18 (- 3)) (* (- 4294967296) .cse3))) (.cse8 (+ .cse16 (* (- 4294967296) .cse1)))) (and (let ((.cse7 (+ .cse5 (* 3 .cse9)))) (or (<= .cse5 (+ |ULTIMATE.start_main_~x~0#1| (- 4294967297))) (and .cse2 (<= .cse6 0) .cse4) (<= |ULTIMATE.start_main_~x~0#1| .cse7) (<= .cse7 (+ |ULTIMATE.start_main_~x~0#1| (- 3))) (and (<= .cse8 0) .cse0))) (let ((.cse11 (= 0 .cse8)) (.cse13 (= 0 .cse6))) (let ((.cse12 (not .cse13)) (.cse10 (not .cse11))) (or (and (or .cse10 (and .cse11 .cse2 .cse4)) .cse12) (and (or (and .cse2 .cse4) .cse11 .cse12) (or .cse13 (and .cse11 (or .cse10 .cse14 .cse15)))) (and .cse0 .cse10 .cse13)))))) (<= |ULTIMATE.start_main_~x~0#1| (+ .cse5 (- 1))) (= (+ |ULTIMATE.start_main_~y~0#1| (- 1)) 0))))))))) [2023-02-18 15:42:42,412 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 30) no Hoare annotation was computed. [2023-02-18 15:42:42,412 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 15:42:42,412 INFO L899 garLoopResultBuilder]: For program point L9(lines 9 10) no Hoare annotation was computed. [2023-02-18 15:42:42,412 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 14 35) the Hoare annotation is: true [2023-02-18 15:42:42,412 INFO L902 garLoopResultBuilder]: At program point L9-2(lines 8 12) the Hoare annotation is: true [2023-02-18 15:42:42,412 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 15:42:42,413 INFO L899 garLoopResultBuilder]: For program point L32-1(lines 32 33) no Hoare annotation was computed. [2023-02-18 15:42:42,413 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 15:42:42,413 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2023-02-18 15:42:42,413 INFO L899 garLoopResultBuilder]: For program point L22(lines 22 29) no Hoare annotation was computed. [2023-02-18 15:42:42,413 INFO L899 garLoopResultBuilder]: For program point L18-1(lines 18 31) no Hoare annotation was computed. [2023-02-18 15:42:42,414 INFO L899 garLoopResultBuilder]: For program point L18-3(lines 14 35) no Hoare annotation was computed. [2023-02-18 15:42:42,414 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2023-02-18 15:42:42,417 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-02-18 15:42:42,418 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 15:42:42,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 03:42:42 BoogieIcfgContainer [2023-02-18 15:42:42,442 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 15:42:42,443 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 15:42:42,443 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 15:42:42,443 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 15:42:42,444 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 03:42:41" (3/4) ... [2023-02-18 15:42:42,446 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 15:42:42,464 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-02-18 15:42:42,464 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-02-18 15:42:42,464 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-18 15:42:42,464 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 15:42:42,464 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 15:42:42,511 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 15:42:42,511 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 15:42:42,512 INFO L158 Benchmark]: Toolchain (without parser) took 1950.84ms. Allocated memory is still 121.6MB. Free memory was 92.8MB in the beginning and 73.2MB in the end (delta: 19.6MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2023-02-18 15:42:42,512 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 121.6MB. Free memory is still 95.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 15:42:42,512 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.40ms. Allocated memory is still 121.6MB. Free memory was 92.3MB in the beginning and 82.2MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 15:42:42,513 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.84ms. Allocated memory is still 121.6MB. Free memory was 82.2MB in the beginning and 80.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 15:42:42,513 INFO L158 Benchmark]: Boogie Preprocessor took 41.88ms. Allocated memory is still 121.6MB. Free memory was 80.6MB in the beginning and 79.7MB in the end (delta: 954.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 15:42:42,513 INFO L158 Benchmark]: RCFGBuilder took 230.07ms. Allocated memory is still 121.6MB. Free memory was 79.7MB in the beginning and 69.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 15:42:42,514 INFO L158 Benchmark]: TraceAbstraction took 1373.43ms. Allocated memory is still 121.6MB. Free memory was 68.8MB in the beginning and 75.8MB in the end (delta: -7.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 15:42:42,514 INFO L158 Benchmark]: Witness Printer took 68.33ms. Allocated memory is still 121.6MB. Free memory was 75.8MB in the beginning and 73.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 15:42:42,516 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 121.6MB. Free memory is still 95.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.40ms. Allocated memory is still 121.6MB. Free memory was 92.3MB in the beginning and 82.2MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.84ms. Allocated memory is still 121.6MB. Free memory was 82.2MB in the beginning and 80.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.88ms. Allocated memory is still 121.6MB. Free memory was 80.6MB in the beginning and 79.7MB in the end (delta: 954.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 230.07ms. Allocated memory is still 121.6MB. Free memory was 79.7MB in the beginning and 69.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1373.43ms. Allocated memory is still 121.6MB. Free memory was 68.8MB in the beginning and 75.8MB in the end (delta: -7.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 68.33ms. Allocated memory is still 121.6MB. Free memory was 75.8MB in the beginning and 73.2MB in the end (delta: 2.6MB). 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: 10]: 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, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 71 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 47 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 7 NumberOfFragments, 936 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 2819 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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: 18]: Loop Invariant Derived loop invariant: (((((0 == x + -4294967296 * (x / 4294967296) + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) || -1 * x + 4294967296 * (x / 4294967296) <= 0) && x / 4294967296 * -1 + (x + -3 * ((x + -4294967296 * (x / 4294967296)) / 3)) / 4294967296 + 1 <= 0) || ((!(-1 * x + 4294967296 * (x / 4294967296) <= 0) && x / 4294967296 * -1 + (x + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) + -3) / 4294967296 + 1 <= 0) && !(0 == x + -4294967296 * (x / 4294967296) + -3 * ((x + -4294967296 * (x / 4294967296)) / 3)))) || (((((4294967296 * (x / 4294967296) <= x + -4294967297 || ((!(-1 * x + 4294967296 * (x / 4294967296) <= 0) && x + -4294967296 * (x / 4294967296) + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) + -3 + -4294967296 * (x / 4294967296 * -1 + (x + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) + -3) / 4294967296) <= 0) && !(0 == x + -4294967296 * (x / 4294967296) + -3 * ((x + -4294967296 * (x / 4294967296)) / 3)))) || x <= 4294967296 * (x / 4294967296) + 3 * ((x + -4294967296 * (x / 4294967296)) / 3)) || 4294967296 * (x / 4294967296) + 3 * ((x + -4294967296 * (x / 4294967296)) / 3) <= x + -3) || (x + -4294967296 * (x / 4294967296) + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) + -4294967296 * (x / 4294967296 * -1 + (x + -3 * ((x + -4294967296 * (x / 4294967296)) / 3)) / 4294967296) <= 0 && (0 == x + -4294967296 * (x / 4294967296) + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) || -1 * x + 4294967296 * (x / 4294967296) <= 0))) && ((((!(0 == x + -4294967296 * (x / 4294967296) + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) + -4294967296 * (x / 4294967296 * -1 + (x + -3 * ((x + -4294967296 * (x / 4294967296)) / 3)) / 4294967296)) || ((0 == x + -4294967296 * (x / 4294967296) + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) + -4294967296 * (x / 4294967296 * -1 + (x + -3 * ((x + -4294967296 * (x / 4294967296)) / 3)) / 4294967296) && !(-1 * x + 4294967296 * (x / 4294967296) <= 0)) && !(0 == x + -4294967296 * (x / 4294967296) + -3 * ((x + -4294967296 * (x / 4294967296)) / 3)))) && !(0 == x + -4294967296 * (x / 4294967296) + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) + -3 + -4294967296 * (x / 4294967296 * -1 + (x + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) + -3) / 4294967296))) || ((((!(-1 * x + 4294967296 * (x / 4294967296) <= 0) && !(0 == x + -4294967296 * (x / 4294967296) + -3 * ((x + -4294967296 * (x / 4294967296)) / 3))) || 0 == x + -4294967296 * (x / 4294967296) + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) + -4294967296 * (x / 4294967296 * -1 + (x + -3 * ((x + -4294967296 * (x / 4294967296)) / 3)) / 4294967296)) || !(0 == x + -4294967296 * (x / 4294967296) + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) + -3 + -4294967296 * (x / 4294967296 * -1 + (x + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) + -3) / 4294967296))) && (0 == x + -4294967296 * (x / 4294967296) + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) + -3 + -4294967296 * (x / 4294967296 * -1 + (x + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) + -3) / 4294967296) || (0 == x + -4294967296 * (x / 4294967296) + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) + -4294967296 * (x / 4294967296 * -1 + (x + -3 * ((x + -4294967296 * (x / 4294967296)) / 3)) / 4294967296) && ((!(0 == x + -4294967296 * (x / 4294967296) + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) + -4294967296 * (x / 4294967296 * -1 + (x + -3 * ((x + -4294967296 * (x / 4294967296)) / 3)) / 4294967296)) || 0 == x + -4294967296 * (x / 4294967296) + -3 * ((x + -4294967296 * (x / 4294967296)) / 3)) || -1 * x + 4294967296 * (x / 4294967296) <= 0))))) || (((0 == x + -4294967296 * (x / 4294967296) + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) || -1 * x + 4294967296 * (x / 4294967296) <= 0) && !(0 == x + -4294967296 * (x / 4294967296) + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) + -4294967296 * (x / 4294967296 * -1 + (x + -3 * ((x + -4294967296 * (x / 4294967296)) / 3)) / 4294967296))) && 0 == x + -4294967296 * (x / 4294967296) + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) + -3 + -4294967296 * (x / 4294967296 * -1 + (x + -3 * ((x + -4294967296 * (x / 4294967296)) / 3) + -3) / 4294967296))))) || x <= 4294967296 * (x / 4294967296) + -1) || y + -1 == 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-02-18 15:42:42,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE