./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-restricted-15/PastaB15.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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/termination-restricted-15/PastaB15.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 856b26ed1b95b9c5e409c9e42274459ceef7cfabfe29e933603f5e3c1c7ce07f --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 23:53:53,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 23:53:53,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 23:53:53,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 23:53:53,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 23:53:53,197 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 23:53:53,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 23:53:53,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 23:53:53,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 23:53:53,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 23:53:53,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 23:53:53,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 23:53:53,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 23:53:53,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 23:53:53,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 23:53:53,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 23:53:53,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 23:53:53,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 23:53:53,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 23:53:53,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 23:53:53,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 23:53:53,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 23:53:53,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 23:53:53,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 23:53:53,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 23:53:53,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 23:53:53,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 23:53:53,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 23:53:53,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 23:53:53,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 23:53:53,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 23:53:53,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 23:53:53,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 23:53:53,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 23:53:53,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 23:53:53,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 23:53:53,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 23:53:53,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 23:53:53,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 23:53:53,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 23:53:53,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 23:53:53,247 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-18 23:53:53,270 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 23:53:53,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 23:53:53,270 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 23:53:53,270 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 23:53:53,271 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 23:53:53,271 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 23:53:53,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 23:53:53,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 23:53:53,272 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 23:53:53,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 23:53:53,272 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 23:53:53,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 23:53:53,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 23:53:53,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 23:53:53,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 23:53:53,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 23:53:53,273 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 23:53:53,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 23:53:53,273 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 23:53:53,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 23:53:53,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 23:53:53,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 23:53:53,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 23:53:53,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:53:53,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 23:53:53,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 23:53:53,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 23:53:53,274 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 23:53:53,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 23:53:53,275 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 23:53:53,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 23:53:53,275 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 23:53:53,275 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 23:53:53,275 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 23:53:53,275 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 856b26ed1b95b9c5e409c9e42274459ceef7cfabfe29e933603f5e3c1c7ce07f [2023-02-18 23:53:53,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 23:53:53,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 23:53:53,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 23:53:53,485 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 23:53:53,486 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 23:53:53,487 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/PastaB15.c [2023-02-18 23:53:54,522 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 23:53:54,718 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 23:53:54,719 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/PastaB15.c [2023-02-18 23:53:54,739 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b1487f6b/6607736008294b409f476c962fe08089/FLAG81d537ec5 [2023-02-18 23:53:54,749 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b1487f6b/6607736008294b409f476c962fe08089 [2023-02-18 23:53:54,751 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 23:53:54,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 23:53:54,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 23:53:54,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 23:53:54,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 23:53:54,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:53:54" (1/1) ... [2023-02-18 23:53:54,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f33ce68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:53:54, skipping insertion in model container [2023-02-18 23:53:54,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:53:54" (1/1) ... [2023-02-18 23:53:54,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 23:53:54,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 23:53:54,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:53:54,883 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 23:53:54,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:53:54,901 INFO L208 MainTranslator]: Completed translation [2023-02-18 23:53:54,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:53:54 WrapperNode [2023-02-18 23:53:54,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 23:53:54,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 23:53:54,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 23:53:54,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 23:53:54,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:53:54" (1/1) ... [2023-02-18 23:53:54,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:53:54" (1/1) ... [2023-02-18 23:53:54,920 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2023-02-18 23:53:54,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 23:53:54,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 23:53:54,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 23:53:54,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 23:53:54,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:53:54" (1/1) ... [2023-02-18 23:53:54,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:53:54" (1/1) ... [2023-02-18 23:53:54,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:53:54" (1/1) ... [2023-02-18 23:53:54,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:53:54" (1/1) ... [2023-02-18 23:53:54,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:53:54" (1/1) ... [2023-02-18 23:53:54,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:53:54" (1/1) ... [2023-02-18 23:53:54,934 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:53:54" (1/1) ... [2023-02-18 23:53:54,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:53:54" (1/1) ... [2023-02-18 23:53:54,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 23:53:54,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 23:53:54,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 23:53:54,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 23:53:54,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:53:54" (1/1) ... [2023-02-18 23:53:54,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:53:54,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:53:54,983 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 23:53:54,997 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 23:53:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 23:53:55,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 23:53:55,048 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 23:53:55,049 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 23:53:55,123 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 23:53:55,129 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 23:53:55,129 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-18 23:53:55,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:53:55 BoogieIcfgContainer [2023-02-18 23:53:55,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 23:53:55,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 23:53:55,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 23:53:55,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 23:53:55,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 11:53:54" (1/3) ... [2023-02-18 23:53:55,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164abb1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:53:55, skipping insertion in model container [2023-02-18 23:53:55,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:53:54" (2/3) ... [2023-02-18 23:53:55,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164abb1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:53:55, skipping insertion in model container [2023-02-18 23:53:55,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:53:55" (3/3) ... [2023-02-18 23:53:55,136 INFO L112 eAbstractionObserver]: Analyzing ICFG PastaB15.c [2023-02-18 23:53:55,147 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 23:53:55,147 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-18 23:53:55,186 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 23:53:55,191 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;@4d19db42, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 23:53:55,191 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-18 23:53:55,194 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 15 states have internal predecessors, (19), 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 23:53:55,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 23:53:55,197 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:53:55,198 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 23:53:55,199 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:53:55,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:53:55,203 INFO L85 PathProgramCache]: Analyzing trace with hash 28699945, now seen corresponding path program 1 times [2023-02-18 23:53:55,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:53:55,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802569910] [2023-02-18 23:53:55,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:53:55,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:53:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:55,359 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 23:53:55,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:53:55,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802569910] [2023-02-18 23:53:55,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802569910] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:53:55,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:53:55,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:53:55,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822640246] [2023-02-18 23:53:55,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:53:55,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:53:55,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:53:55,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:53:55,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:53:55,389 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 15 states have internal predecessors, (19), 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 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 23:53:55,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:53:55,439 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2023-02-18 23:53:55,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:53:55,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2023-02-18 23:53:55,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:53:55,446 INFO L225 Difference]: With dead ends: 37 [2023-02-18 23:53:55,446 INFO L226 Difference]: Without dead ends: 15 [2023-02-18 23:53:55,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 23:53:55,449 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 25 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:53:55,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 22 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:53:55,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-18 23:53:55,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-02-18 23:53:55,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.6) internal successors, (16), 13 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 23:53:55,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2023-02-18 23:53:55,468 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 5 [2023-02-18 23:53:55,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:53:55,468 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-02-18 23:53:55,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 23:53:55,469 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-02-18 23:53:55,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 23:53:55,469 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:53:55,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 23:53:55,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 23:53:55,470 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:53:55,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:53:55,470 INFO L85 PathProgramCache]: Analyzing trace with hash 889698349, now seen corresponding path program 1 times [2023-02-18 23:53:55,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:53:55,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43613566] [2023-02-18 23:53:55,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:53:55,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:53:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:55,486 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 23:53:55,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:53:55,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43613566] [2023-02-18 23:53:55,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43613566] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:53:55,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:53:55,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:53:55,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304578430] [2023-02-18 23:53:55,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:53:55,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:53:55,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:53:55,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:53:55,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:53:55,489 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.0) 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) [2023-02-18 23:53:55,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:53:55,495 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2023-02-18 23:53:55,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:53:55,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) 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 [2023-02-18 23:53:55,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:53:55,497 INFO L225 Difference]: With dead ends: 14 [2023-02-18 23:53:55,497 INFO L226 Difference]: Without dead ends: 13 [2023-02-18 23:53:55,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:53:55,498 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:53:55,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:53:55,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-02-18 23:53:55,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-02-18 23:53:55,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.5) internal successors, (15), 12 states have internal predecessors, (15), 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 23:53:55,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2023-02-18 23:53:55,501 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 6 [2023-02-18 23:53:55,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:53:55,502 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2023-02-18 23:53:55,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) 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) [2023-02-18 23:53:55,502 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-02-18 23:53:55,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 23:53:55,503 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:53:55,503 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:53:55,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 23:53:55,503 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:53:55,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:53:55,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1810845099, now seen corresponding path program 1 times [2023-02-18 23:53:55,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:53:55,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213232379] [2023-02-18 23:53:55,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:53:55,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:53:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:55,537 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 23:53:55,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:53:55,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213232379] [2023-02-18 23:53:55,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213232379] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:53:55,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:53:55,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:53:55,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166025123] [2023-02-18 23:53:55,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:53:55,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:53:55,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:53:55,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:53:55,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:53:55,543 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 23:53:55,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:53:55,597 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2023-02-18 23:53:55,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 23:53:55,597 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 23:53:55,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:53:55,598 INFO L225 Difference]: With dead ends: 19 [2023-02-18 23:53:55,598 INFO L226 Difference]: Without dead ends: 18 [2023-02-18 23:53:55,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 23:53:55,599 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:53:55,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 10 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:53:55,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-18 23:53:55,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2023-02-18 23:53:55,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 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 23:53:55,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2023-02-18 23:53:55,601 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 7 [2023-02-18 23:53:55,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:53:55,602 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2023-02-18 23:53:55,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 23:53:55,602 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-02-18 23:53:55,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 23:53:55,602 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:53:55,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:53:55,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 23:53:55,602 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:53:55,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:53:55,603 INFO L85 PathProgramCache]: Analyzing trace with hash 301623279, now seen corresponding path program 1 times [2023-02-18 23:53:55,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:53:55,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321434839] [2023-02-18 23:53:55,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:53:55,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:53:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:55,621 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 23:53:55,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:53:55,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321434839] [2023-02-18 23:53:55,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321434839] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:53:55,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:53:55,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:53:55,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412679494] [2023-02-18 23:53:55,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:53:55,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:53:55,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:53:55,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:53:55,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:53:55,623 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2023-02-18 23:53:55,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:53:55,630 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2023-02-18 23:53:55,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:53:55,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 8 [2023-02-18 23:53:55,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:53:55,631 INFO L225 Difference]: With dead ends: 15 [2023-02-18 23:53:55,631 INFO L226 Difference]: Without dead ends: 14 [2023-02-18 23:53:55,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:53:55,632 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:53:55,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:53:55,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-02-18 23:53:55,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-02-18 23:53:55,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 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 23:53:55,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2023-02-18 23:53:55,650 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 8 [2023-02-18 23:53:55,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:53:55,650 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-02-18 23:53:55,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2023-02-18 23:53:55,651 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-02-18 23:53:55,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 23:53:55,652 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:53:55,652 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:53:55,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 23:53:55,652 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:53:55,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:53:55,653 INFO L85 PathProgramCache]: Analyzing trace with hash 2097163889, now seen corresponding path program 1 times [2023-02-18 23:53:55,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:53:55,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027769897] [2023-02-18 23:53:55,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:53:55,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:53:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:55,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 23:53:55,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:53:55,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027769897] [2023-02-18 23:53:55,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027769897] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:53:55,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463589084] [2023-02-18 23:53:55,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:53:55,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:53:55,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:53:55,745 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) [2023-02-18 23:53:55,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 23:53:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:55,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 23:53:55,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:53:55,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 23:53:55,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:53:55,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:53:55,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463589084] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:53:55,898 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:53:55,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6] total 10 [2023-02-18 23:53:55,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056882002] [2023-02-18 23:53:55,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:53:55,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-18 23:53:55,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:53:55,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-18 23:53:55,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-02-18 23:53:55,900 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 11 states have internal predecessors, (24), 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 23:53:55,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:53:55,924 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2023-02-18 23:53:55,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 23:53:55,924 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 11 states have internal predecessors, (24), 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 23:53:55,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:53:55,925 INFO L225 Difference]: With dead ends: 16 [2023-02-18 23:53:55,925 INFO L226 Difference]: Without dead ends: 15 [2023-02-18 23:53:55,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-02-18 23:53:55,926 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:53:55,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 7 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:53:55,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-18 23:53:55,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2023-02-18 23:53:55,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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 23:53:55,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2023-02-18 23:53:55,929 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2023-02-18 23:53:55,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:53:55,929 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2023-02-18 23:53:55,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 11 states have internal predecessors, (24), 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 23:53:55,930 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-02-18 23:53:55,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-18 23:53:55,930 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:53:55,930 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-18 23:53:55,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 23:53:56,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:53:56,134 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:53:56,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:53:56,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1034837235, now seen corresponding path program 1 times [2023-02-18 23:53:56,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:53:56,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016602460] [2023-02-18 23:53:56,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:53:56,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:53:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:56,195 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 23:53:56,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:53:56,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016602460] [2023-02-18 23:53:56,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016602460] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:53:56,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701099059] [2023-02-18 23:53:56,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:53:56,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:53:56,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:53:56,198 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) [2023-02-18 23:53:56,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 23:53:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:56,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 23:53:56,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:53:56,262 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 23:53:56,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:53:56,297 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:53:56,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701099059] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:53:56,299 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:53:56,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 5] total 8 [2023-02-18 23:53:56,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172767530] [2023-02-18 23:53:56,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:53:56,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-18 23:53:56,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:53:56,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-18 23:53:56,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-02-18 23:53:56,301 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 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 23:53:56,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:53:56,328 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2023-02-18 23:53:56,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 23:53:56,328 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 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 [2023-02-18 23:53:56,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:53:56,329 INFO L225 Difference]: With dead ends: 15 [2023-02-18 23:53:56,329 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 23:53:56,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-02-18 23:53:56,330 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:53:56,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:53:56,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 23:53:56,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 23:53:56,331 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 23:53:56,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 23:53:56,331 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2023-02-18 23:53:56,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:53:56,331 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 23:53:56,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.5) internal successors, (28), 9 states have internal predecessors, (28), 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 23:53:56,332 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 23:53:56,332 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 23:53:56,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-02-18 23:53:56,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-02-18 23:53:56,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-02-18 23:53:56,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-02-18 23:53:56,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-18 23:53:56,537 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,SelfDestructingSolverStorable5 [2023-02-18 23:53:56,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 23:53:56,543 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2023-02-18 23:53:56,543 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 23:53:56,543 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2023-02-18 23:53:56,543 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2023-02-18 23:53:56,544 INFO L899 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2023-02-18 23:53:56,544 INFO L899 garLoopResultBuilder]: For program point L13-2(lines 13 18) no Hoare annotation was computed. [2023-02-18 23:53:56,544 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 23:53:56,544 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 5 21) the Hoare annotation is: (let ((.cse0 (<= 0 (+ |ULTIMATE.start_main_~z~0#1| 2147483648)))) (or (and (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483647)) .cse0) .cse0)) [2023-02-18 23:53:56,544 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 23:53:56,544 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2023-02-18 23:53:56,544 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2023-02-18 23:53:56,544 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 23:53:56,544 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2023-02-18 23:53:56,544 INFO L899 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2023-02-18 23:53:56,544 INFO L895 garLoopResultBuilder]: At program point L14-2(lines 14 17) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) (.cse1 (<= |ULTIMATE.start_main_~x~0#1| 2147483647)) (.cse2 (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse3 (<= 0 (+ |ULTIMATE.start_main_~z~0#1| 2147483648))) (.cse4 (>= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483647)) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483647)) .cse2 .cse3 .cse4))) [2023-02-18 23:53:56,545 INFO L895 garLoopResultBuilder]: At program point L14-3(lines 13 18) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse1 (<= 0 (+ |ULTIMATE.start_main_~z~0#1| 2147483648)))) (let ((.cse2 (let ((.cse6 (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483647)))) (let ((.cse3 (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) (.cse4 (let ((.cse7 (<= |ULTIMATE.start_main_~x~0#1| 2147483647)) (.cse8 (or (and .cse6 .cse1) .cse1))) (or (and .cse7 .cse8 .cse0) (and .cse7 .cse8)))) (.cse5 (>= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|))) (or (and .cse3 .cse4 .cse1 .cse5) (and .cse3 .cse4 .cse1) (and .cse3 .cse6 .cse4 .cse1 .cse5)))))) (or (and .cse0 .cse1 .cse2) (and (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483647)) .cse0 .cse1 .cse2) (and .cse1 .cse2)))) [2023-02-18 23:53:56,546 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-02-18 23:53:56,548 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 23:53:56,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 11:53:56 BoogieIcfgContainer [2023-02-18 23:53:56,567 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 23:53:56,567 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 23:53:56,567 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 23:53:56,568 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 23:53:56,568 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:53:55" (3/4) ... [2023-02-18 23:53:56,570 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 23:53:56,587 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-18 23:53:56,587 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-18 23:53:56,587 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 23:53:56,611 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 23:53:56,611 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 23:53:56,611 INFO L158 Benchmark]: Toolchain (without parser) took 1859.42ms. Allocated memory is still 134.2MB. Free memory was 106.9MB in the beginning and 60.7MB in the end (delta: 46.2MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2023-02-18 23:53:56,611 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 134.2MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:53:56,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 149.81ms. Allocated memory is still 134.2MB. Free memory was 106.9MB in the beginning and 97.7MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 23:53:56,612 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.31ms. Allocated memory is still 134.2MB. Free memory was 97.7MB in the beginning and 96.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 23:53:56,612 INFO L158 Benchmark]: Boogie Preprocessor took 12.72ms. Allocated memory is still 134.2MB. Free memory was 96.4MB in the beginning and 95.6MB in the end (delta: 842.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 23:53:56,612 INFO L158 Benchmark]: RCFGBuilder took 194.73ms. Allocated memory is still 134.2MB. Free memory was 95.6MB in the beginning and 86.8MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 23:53:56,612 INFO L158 Benchmark]: TraceAbstraction took 1435.34ms. Allocated memory is still 134.2MB. Free memory was 85.9MB in the beginning and 63.6MB in the end (delta: 22.3MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2023-02-18 23:53:56,613 INFO L158 Benchmark]: Witness Printer took 43.62ms. Allocated memory is still 134.2MB. Free memory was 63.6MB in the beginning and 60.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-18 23:53:56,614 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 134.2MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 149.81ms. Allocated memory is still 134.2MB. Free memory was 106.9MB in the beginning and 97.7MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.31ms. Allocated memory is still 134.2MB. Free memory was 97.7MB in the beginning and 96.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.72ms. Allocated memory is still 134.2MB. Free memory was 96.4MB in the beginning and 95.6MB in the end (delta: 842.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 194.73ms. Allocated memory is still 134.2MB. Free memory was 95.6MB in the beginning and 86.8MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1435.34ms. Allocated memory is still 134.2MB. Free memory was 85.9MB in the beginning and 63.6MB in the end (delta: 22.3MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * Witness Printer took 43.62ms. Allocated memory is still 134.2MB. Free memory was 63.6MB in the beginning and 60.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. 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: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 35 mSDtfsCounter, 105 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 29 SyntacticMatches, 8 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 28, 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, 6 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 10 NumberOfFragments, 625 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 449 SizeOfPredicates, 7 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 5/18 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 4 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: (0 <= x + 2147483647 && 0 <= z + 2147483648) || 0 <= z + 2147483648 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((y <= 2147483647 && x <= 2147483647) && x <= y) && 0 <= z + 2147483648) && x >= y) || ((((((y <= 2147483647 && x <= 2147483647) && 0 <= y + 2147483647) && 0 <= x + 2147483647) && x <= y) && 0 <= z + 2147483648) && x >= y) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: (((x <= y && 0 <= z + 2147483648) && (((((y <= 2147483647 && (((x <= 2147483647 && ((0 <= x + 2147483647 && 0 <= z + 2147483648) || 0 <= z + 2147483648)) && x <= y) || (x <= 2147483647 && ((0 <= x + 2147483647 && 0 <= z + 2147483648) || 0 <= z + 2147483648)))) && 0 <= z + 2147483648) && x >= y) || ((y <= 2147483647 && (((x <= 2147483647 && ((0 <= x + 2147483647 && 0 <= z + 2147483648) || 0 <= z + 2147483648)) && x <= y) || (x <= 2147483647 && ((0 <= x + 2147483647 && 0 <= z + 2147483648) || 0 <= z + 2147483648)))) && 0 <= z + 2147483648)) || ((((y <= 2147483647 && 0 <= x + 2147483647) && (((x <= 2147483647 && ((0 <= x + 2147483647 && 0 <= z + 2147483648) || 0 <= z + 2147483648)) && x <= y) || (x <= 2147483647 && ((0 <= x + 2147483647 && 0 <= z + 2147483648) || 0 <= z + 2147483648)))) && 0 <= z + 2147483648) && x >= y))) || (((0 <= y + 2147483647 && x <= y) && 0 <= z + 2147483648) && (((((y <= 2147483647 && (((x <= 2147483647 && ((0 <= x + 2147483647 && 0 <= z + 2147483648) || 0 <= z + 2147483648)) && x <= y) || (x <= 2147483647 && ((0 <= x + 2147483647 && 0 <= z + 2147483648) || 0 <= z + 2147483648)))) && 0 <= z + 2147483648) && x >= y) || ((y <= 2147483647 && (((x <= 2147483647 && ((0 <= x + 2147483647 && 0 <= z + 2147483648) || 0 <= z + 2147483648)) && x <= y) || (x <= 2147483647 && ((0 <= x + 2147483647 && 0 <= z + 2147483648) || 0 <= z + 2147483648)))) && 0 <= z + 2147483648)) || ((((y <= 2147483647 && 0 <= x + 2147483647) && (((x <= 2147483647 && ((0 <= x + 2147483647 && 0 <= z + 2147483648) || 0 <= z + 2147483648)) && x <= y) || (x <= 2147483647 && ((0 <= x + 2147483647 && 0 <= z + 2147483648) || 0 <= z + 2147483648)))) && 0 <= z + 2147483648) && x >= y)))) || (0 <= z + 2147483648 && (((((y <= 2147483647 && (((x <= 2147483647 && ((0 <= x + 2147483647 && 0 <= z + 2147483648) || 0 <= z + 2147483648)) && x <= y) || (x <= 2147483647 && ((0 <= x + 2147483647 && 0 <= z + 2147483648) || 0 <= z + 2147483648)))) && 0 <= z + 2147483648) && x >= y) || ((y <= 2147483647 && (((x <= 2147483647 && ((0 <= x + 2147483647 && 0 <= z + 2147483648) || 0 <= z + 2147483648)) && x <= y) || (x <= 2147483647 && ((0 <= x + 2147483647 && 0 <= z + 2147483648) || 0 <= z + 2147483648)))) && 0 <= z + 2147483648)) || ((((y <= 2147483647 && 0 <= x + 2147483647) && (((x <= 2147483647 && ((0 <= x + 2147483647 && 0 <= z + 2147483648) || 0 <= z + 2147483648)) && x <= y) || (x <= 2147483647 && ((0 <= x + 2147483647 && 0 <= z + 2147483648) || 0 <= z + 2147483648)))) && 0 <= z + 2147483648) && x >= y))) RESULT: Ultimate proved your program to be correct! [2023-02-18 23:53:56,649 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