./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 079fce486bad33abab391a672044e04aae9233622e9697c4aac88598201cd13f --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 15:27:08,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 15:27:08,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 15:27:08,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 15:27:08,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 15:27:08,613 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 15:27:08,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 15:27:08,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 15:27:08,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 15:27:08,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 15:27:08,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 15:27:08,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 15:27:08,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 15:27:08,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 15:27:08,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 15:27:08,638 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 15:27:08,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 15:27:08,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 15:27:08,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 15:27:08,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 15:27:08,648 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 15:27:08,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 15:27:08,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 15:27:08,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 15:27:08,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 15:27:08,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 15:27:08,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 15:27:08,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 15:27:08,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 15:27:08,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 15:27:08,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 15:27:08,661 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 15:27:08,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 15:27:08,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 15:27:08,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 15:27:08,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 15:27:08,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 15:27:08,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 15:27:08,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 15:27:08,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 15:27:08,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 15:27:08,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 15:27:08,669 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 15:27:08,707 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 15:27:08,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 15:27:08,708 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 15:27:08,709 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 15:27:08,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 15:27:08,709 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 15:27:08,710 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 15:27:08,710 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 15:27:08,710 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 15:27:08,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 15:27:08,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 15:27:08,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 15:27:08,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 15:27:08,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 15:27:08,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 15:27:08,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 15:27:08,713 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 15:27:08,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 15:27:08,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 15:27:08,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 15:27:08,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 15:27:08,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:27:08,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 15:27:08,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 15:27:08,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 15:27:08,715 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 15:27:08,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 15:27:08,716 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 15:27:08,716 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 15:27:08,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 15:27:08,716 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 079fce486bad33abab391a672044e04aae9233622e9697c4aac88598201cd13f [2022-07-12 15:27:08,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 15:27:08,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 15:27:08,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 15:27:08,978 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 15:27:08,978 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 15:27:08,980 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i [2022-07-12 15:27:09,047 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed663601/1147197cb3d04b31bb2ad9f8b3d4c0b6/FLAG3b86be7f4 [2022-07-12 15:27:09,843 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 15:27:09,844 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i [2022-07-12 15:27:09,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed663601/1147197cb3d04b31bb2ad9f8b3d4c0b6/FLAG3b86be7f4 [2022-07-12 15:27:10,056 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aed663601/1147197cb3d04b31bb2ad9f8b3d4c0b6 [2022-07-12 15:27:10,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 15:27:10,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 15:27:10,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 15:27:10,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 15:27:10,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 15:27:10,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:27:10" (1/1) ... [2022-07-12 15:27:10,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5990be91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:27:10, skipping insertion in model container [2022-07-12 15:27:10,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 03:27:10" (1/1) ... [2022-07-12 15:27:10,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 15:27:10,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 15:27:12,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423587,423600] [2022-07-12 15:27:12,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423734,423747] [2022-07-12 15:27:12,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423873,423886] [2022-07-12 15:27:12,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[424031,424044] [2022-07-12 15:27:12,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:27:12,982 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 15:27:13,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423587,423600] [2022-07-12 15:27:13,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423734,423747] [2022-07-12 15:27:13,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[423873,423886] [2022-07-12 15:27:13,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i[424031,424044] [2022-07-12 15:27:13,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 15:27:13,589 INFO L208 MainTranslator]: Completed translation [2022-07-12 15:27:13,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:27:13 WrapperNode [2022-07-12 15:27:13,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 15:27:13,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 15:27:13,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 15:27:13,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 15:27:13,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:27:13" (1/1) ... [2022-07-12 15:27:13,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:27:13" (1/1) ... [2022-07-12 15:27:14,006 INFO L137 Inliner]: procedures = 447, calls = 4156, calls flagged for inlining = 247, calls inlined = 238, statements flattened = 9135 [2022-07-12 15:27:14,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 15:27:14,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 15:27:14,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 15:27:14,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 15:27:14,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:27:13" (1/1) ... [2022-07-12 15:27:14,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:27:13" (1/1) ... [2022-07-12 15:27:14,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:27:13" (1/1) ... [2022-07-12 15:27:14,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:27:13" (1/1) ... [2022-07-12 15:27:14,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:27:13" (1/1) ... [2022-07-12 15:27:14,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:27:13" (1/1) ... [2022-07-12 15:27:14,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:27:13" (1/1) ... [2022-07-12 15:27:14,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 15:27:14,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 15:27:14,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 15:27:14,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 15:27:14,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:27:13" (1/1) ... [2022-07-12 15:27:14,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 15:27:14,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 15:27:14,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 15:27:14,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 15:27:14,493 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-12 15:27:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-12 15:27:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 15:27:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 15:27:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-12 15:27:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-12 15:27:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2022-07-12 15:27:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2022-07-12 15:27:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_nway_reset [2022-07-12 15:27:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_nway_reset [2022-07-12 15:27:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-12 15:27:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-12 15:27:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 15:27:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 15:27:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-12 15:27:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-12 15:27:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure set_8021q_mode [2022-07-12 15:27:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8021q_mode [2022-07-12 15:27:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_remove_one [2022-07-12 15:27:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_remove_one [2022-07-12 15:27:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-07-12 15:27:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-07-12 15:27:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure issue_and_wait [2022-07-12 15:27:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_and_wait [2022-07-12 15:27:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 15:27:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 15:27:14,498 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-07-12 15:27:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-07-12 15:27:14,498 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-12 15:27:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-12 15:27:14,499 INFO L130 BoogieDeclarations]: Found specification of procedure window_write32 [2022-07-12 15:27:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write32 [2022-07-12 15:27:14,499 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-12 15:27:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-12 15:27:14,499 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-12 15:27:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-12 15:27:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 15:27:14,500 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 15:27:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure window_set [2022-07-12 15:27:14,500 INFO L138 BoogieDeclarations]: Found implementation of procedure window_set [2022-07-12 15:27:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-12 15:27:14,500 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-12 15:27:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-12 15:27:14,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-12 15:27:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-12 15:27:14,501 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-12 15:27:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-12 15:27:14,501 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-12 15:27:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-12 15:27:14,502 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-12 15:27:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-07-12 15:27:14,503 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-07-12 15:27:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-12 15:27:14,503 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-12 15:27:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 15:27:14,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 15:27:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-07-12 15:27:14,504 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-07-12 15:27:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 15:27:14,504 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 15:27:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-12 15:27:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-12 15:27:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 15:27:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2022-07-12 15:27:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2022-07-12 15:27:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-07-12 15:27:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-07-12 15:27:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-12 15:27:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-12 15:27:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 15:27:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 15:27:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-07-12 15:27:14,507 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-07-12 15:27:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-12 15:27:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_tx_timeout [2022-07-12 15:27:14,507 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_tx_timeout [2022-07-12 15:27:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-07-12 15:27:14,507 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-07-12 15:27:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2022-07-12 15:27:14,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2022-07-12 15:27:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 15:27:14,508 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 15:27:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-07-12 15:27:14,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-07-12 15:27:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 15:27:14,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 15:27:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-12 15:27:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-12 15:27:14,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-12 15:27:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 15:27:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_interrupt [2022-07-12 15:27:14,510 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_interrupt [2022-07-12 15:27:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-07-12 15:27:14,511 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-07-12 15:27:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 15:27:14,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 15:27:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-12 15:27:14,511 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-12 15:27:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-12 15:27:14,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-12 15:27:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-12 15:27:14,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-12 15:27:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-12 15:27:14,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-12 15:27:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_set_duplex [2022-07-12 15:27:14,512 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_set_duplex [2022-07-12 15:27:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-07-12 15:27:14,513 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-07-12 15:27:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-07-12 15:27:14,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-07-12 15:27:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-12 15:27:14,514 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-12 15:27:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_error [2022-07-12 15:27:14,516 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_error [2022-07-12 15:27:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-12 15:27:14,517 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-12 15:27:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_close [2022-07-12 15:27:14,518 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_close [2022-07-12 15:27:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 15:27:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-12 15:27:14,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-12 15:27:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2022-07-12 15:27:14,523 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2022-07-12 15:27:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-12 15:27:14,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-12 15:27:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-07-12 15:27:14,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-07-12 15:27:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-07-12 15:27:14,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-07-12 15:27:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-07-12 15:27:14,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-07-12 15:27:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 15:27:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-12 15:27:14,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-12 15:27:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 15:27:14,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 15:27:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 15:27:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-07-12 15:27:14,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-07-12 15:27:14,526 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 15:27:14,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 15:27:14,526 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-12 15:27:14,526 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-12 15:27:14,526 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-12 15:27:14,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-12 15:27:14,526 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_set_WOL [2022-07-12 15:27:14,526 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_set_WOL [2022-07-12 15:27:14,527 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-12 15:27:14,527 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-12 15:27:14,527 INFO L130 BoogieDeclarations]: Found specification of procedure window_write16 [2022-07-12 15:27:14,527 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write16 [2022-07-12 15:27:14,527 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-07-12 15:27:14,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-07-12 15:27:14,527 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-12 15:27:14,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-12 15:27:14,528 INFO L130 BoogieDeclarations]: Found specification of procedure window_read8 [2022-07-12 15:27:14,528 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read8 [2022-07-12 15:27:14,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2022-07-12 15:27:14,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2022-07-12 15:27:14,528 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2022-07-12 15:27:14,528 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2022-07-12 15:27:14,528 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-12 15:27:14,528 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-12 15:27:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-12 15:27:14,529 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-12 15:27:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure poll_vortex [2022-07-12 15:27:14,529 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_vortex [2022-07-12 15:27:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-12 15:27:14,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-12 15:27:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_check_media [2022-07-12 15:27:14,529 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_check_media [2022-07-12 15:27:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-12 15:27:14,530 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-12 15:27:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2022-07-12 15:27:14,530 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2022-07-12 15:27:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-07-12 15:27:14,530 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-07-12 15:27:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_open [2022-07-12 15:27:14,530 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_open [2022-07-12 15:27:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure dump_tx_ring [2022-07-12 15:27:14,531 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_tx_ring [2022-07-12 15:27:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-07-12 15:27:14,531 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-07-12 15:27:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 15:27:14,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 15:27:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-07-12 15:27:14,532 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-07-12 15:27:14,533 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_probe1 [2022-07-12 15:27:14,533 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_probe1 [2022-07-12 15:27:14,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-12 15:27:14,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-12 15:27:14,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 15:27:14,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 15:27:14,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-12 15:27:14,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-12 15:27:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2022-07-12 15:27:14,534 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2022-07-12 15:27:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-12 15:27:14,534 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-12 15:27:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-12 15:27:14,534 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-12 15:27:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-07-12 15:27:14,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-07-12 15:27:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-12 15:27:14,535 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-12 15:27:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-12 15:27:14,535 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-12 15:27:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 15:27:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-07-12 15:27:14,535 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-07-12 15:27:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-12 15:27:14,536 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-12 15:27:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2022-07-12 15:27:14,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2022-07-12 15:27:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 15:27:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_suspend [2022-07-12 15:27:14,536 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_suspend [2022-07-12 15:27:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_interrupt [2022-07-12 15:27:14,536 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_interrupt [2022-07-12 15:27:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 15:27:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-12 15:27:14,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-12 15:27:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-07-12 15:27:14,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-07-12 15:27:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-12 15:27:14,537 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-12 15:27:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-12 15:27:14,538 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-12 15:27:14,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-12 15:27:14,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-12 15:27:14,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-12 15:27:14,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-12 15:27:14,538 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-12 15:27:14,538 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-12 15:27:14,538 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2022-07-12 15:27:14,539 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2022-07-12 15:27:14,539 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_resume [2022-07-12 15:27:14,539 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_resume [2022-07-12 15:27:14,539 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2022-07-12 15:27:14,540 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2022-07-12 15:27:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-12 15:27:14,542 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-12 15:27:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_rx [2022-07-12 15:27:14,543 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_rx [2022-07-12 15:27:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-12 15:27:14,543 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-12 15:27:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-12 15:27:14,543 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-12 15:27:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-12 15:27:14,544 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-12 15:27:14,545 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 15:27:14,545 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 15:27:14,545 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_delay [2022-07-12 15:27:14,545 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_delay [2022-07-12 15:27:14,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 15:27:14,545 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_down [2022-07-12 15:27:14,545 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_down [2022-07-12 15:27:14,545 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-07-12 15:27:14,545 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-07-12 15:27:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-12 15:27:14,546 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-12 15:27:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 15:27:14,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 15:27:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure window_write8 [2022-07-12 15:27:14,546 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write8 [2022-07-12 15:27:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure window_read32 [2022-07-12 15:27:14,546 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read32 [2022-07-12 15:27:14,547 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-07-12 15:27:14,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-07-12 15:27:14,547 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2022-07-12 15:27:14,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2022-07-12 15:27:14,547 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-12 15:27:14,547 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-12 15:27:14,547 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_up [2022-07-12 15:27:14,547 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_up [2022-07-12 15:27:14,547 INFO L130 BoogieDeclarations]: Found specification of procedure window_read16 [2022-07-12 15:27:14,548 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read16 [2022-07-12 15:27:14,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-12 15:27:14,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-12 15:27:14,548 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-12 15:27:14,548 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-12 15:27:14,548 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-12 15:27:14,548 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-12 15:27:14,548 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-12 15:27:14,548 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-12 15:27:14,549 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-12 15:27:14,549 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-12 15:27:14,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 15:27:14,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-12 15:27:14,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-12 15:27:14,549 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-12 15:27:14,549 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-12 15:27:15,578 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 15:27:15,585 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 15:27:16,601 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 15:27:21,499 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-12 15:27:21,591 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 15:27:21,617 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 15:27:21,617 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 15:27:21,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:27:21 BoogieIcfgContainer [2022-07-12 15:27:21,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 15:27:21,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 15:27:21,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 15:27:21,628 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 15:27:21,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 03:27:10" (1/3) ... [2022-07-12 15:27:21,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57853eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:27:21, skipping insertion in model container [2022-07-12 15:27:21,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 03:27:13" (2/3) ... [2022-07-12 15:27:21,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57853eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 03:27:21, skipping insertion in model container [2022-07-12 15:27:21,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 03:27:21" (3/3) ... [2022-07-12 15:27:21,632 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i [2022-07-12 15:27:21,645 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 15:27:21,645 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 15:27:21,833 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 15:27:21,841 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4c794501, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1cd2feb2 [2022-07-12 15:27:21,841 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 15:27:21,855 INFO L276 IsEmpty]: Start isEmpty. Operand has 3154 states, 2256 states have (on average 1.3754432624113475) internal successors, (3103), 2326 states have internal predecessors, (3103), 759 states have call successors, (759), 138 states have call predecessors, (759), 137 states have return successors, (750), 735 states have call predecessors, (750), 750 states have call successors, (750) [2022-07-12 15:27:21,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-07-12 15:27:21,888 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:27:21,889 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:27:21,890 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 15:27:21,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:27:21,897 INFO L85 PathProgramCache]: Analyzing trace with hash -689487057, now seen corresponding path program 1 times [2022-07-12 15:27:21,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:27:21,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212100294] [2022-07-12 15:27:21,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:27:21,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:27:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:27:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:27:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:27:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:27:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:27:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:27:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:27:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:27:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:27:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 15:27:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 15:27:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:27:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 15:27:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 15:27:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-12 15:27:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 15:27:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:27:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:22,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 15:27:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-12 15:27:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:22,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2022-07-12 15:27:22,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:27:22,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212100294] [2022-07-12 15:27:22,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212100294] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:27:22,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:27:22,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:27:22,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30958079] [2022-07-12 15:27:22,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:27:22,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:27:22,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:27:23,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:27:23,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:27:23,018 INFO L87 Difference]: Start difference. First operand has 3154 states, 2256 states have (on average 1.3754432624113475) internal successors, (3103), 2326 states have internal predecessors, (3103), 759 states have call successors, (759), 138 states have call predecessors, (759), 137 states have return successors, (750), 735 states have call predecessors, (750), 750 states have call successors, (750) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-12 15:27:28,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:27:28,809 INFO L93 Difference]: Finished difference Result 9327 states and 13898 transitions. [2022-07-12 15:27:28,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:27:28,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 214 [2022-07-12 15:27:28,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:27:28,872 INFO L225 Difference]: With dead ends: 9327 [2022-07-12 15:27:28,873 INFO L226 Difference]: Without dead ends: 6198 [2022-07-12 15:27:28,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:27:28,901 INFO L413 NwaCegarLoop]: 4873 mSDtfsCounter, 5141 mSDsluCounter, 5204 mSDsCounter, 0 mSdLazyCounter, 3043 mSolverCounterSat, 2036 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5805 SdHoareTripleChecker+Valid, 10077 SdHoareTripleChecker+Invalid, 5079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2036 IncrementalHoareTripleChecker+Valid, 3043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-07-12 15:27:28,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5805 Valid, 10077 Invalid, 5079 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2036 Valid, 3043 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-07-12 15:27:28,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6198 states. [2022-07-12 15:27:29,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6198 to 6137. [2022-07-12 15:27:29,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6137 states, 4409 states have (on average 1.3454298026763438) internal successors, (5932), 4548 states have internal predecessors, (5932), 1455 states have call successors, (1455), 272 states have call predecessors, (1455), 271 states have return successors, (1452), 1422 states have call predecessors, (1452), 1452 states have call successors, (1452) [2022-07-12 15:27:29,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6137 states to 6137 states and 8839 transitions. [2022-07-12 15:27:29,343 INFO L78 Accepts]: Start accepts. Automaton has 6137 states and 8839 transitions. Word has length 214 [2022-07-12 15:27:29,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:27:29,347 INFO L495 AbstractCegarLoop]: Abstraction has 6137 states and 8839 transitions. [2022-07-12 15:27:29,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-12 15:27:29,347 INFO L276 IsEmpty]: Start isEmpty. Operand 6137 states and 8839 transitions. [2022-07-12 15:27:29,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-07-12 15:27:29,360 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:27:29,361 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:27:29,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 15:27:29,362 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 15:27:29,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:27:29,363 INFO L85 PathProgramCache]: Analyzing trace with hash -722015313, now seen corresponding path program 1 times [2022-07-12 15:27:29,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:27:29,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314907777] [2022-07-12 15:27:29,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:27:29,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:27:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:27:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:27:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:27:29,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:29,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:27:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:27:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:27:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:27:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:27:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:27:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 15:27:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:29,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 15:27:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:27:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:29,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 15:27:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:29,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 15:27:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:30,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:30,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-12 15:27:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:30,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:30,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 15:27:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:30,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:30,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:27:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:30,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:30,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 15:27:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:30,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-12 15:27:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:30,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:30,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:27:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:30,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:27:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:30,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-12 15:27:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:30,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1279 trivial. 0 not checked. [2022-07-12 15:27:30,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:27:30,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314907777] [2022-07-12 15:27:30,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314907777] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:27:30,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:27:30,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:27:30,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402511739] [2022-07-12 15:27:30,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:27:30,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:27:30,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:27:30,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:27:30,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:27:30,122 INFO L87 Difference]: Start difference. First operand 6137 states and 8839 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-12 15:27:36,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:27:36,069 INFO L93 Difference]: Finished difference Result 16367 states and 23598 transitions. [2022-07-12 15:27:36,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:27:36,070 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 248 [2022-07-12 15:27:36,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:27:36,154 INFO L225 Difference]: With dead ends: 16367 [2022-07-12 15:27:36,155 INFO L226 Difference]: Without dead ends: 10269 [2022-07-12 15:27:36,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:27:36,192 INFO L413 NwaCegarLoop]: 4917 mSDtfsCounter, 5093 mSDsluCounter, 5256 mSDsCounter, 0 mSdLazyCounter, 3065 mSolverCounterSat, 2021 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5755 SdHoareTripleChecker+Valid, 10173 SdHoareTripleChecker+Invalid, 5086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2021 IncrementalHoareTripleChecker+Valid, 3065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-07-12 15:27:36,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5755 Valid, 10173 Invalid, 5086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2021 Valid, 3065 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-07-12 15:27:36,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10269 states. [2022-07-12 15:27:36,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10269 to 10151. [2022-07-12 15:27:36,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10151 states, 7303 states have (on average 1.3431466520607969) internal successors, (9809), 7533 states have internal predecessors, (9809), 2371 states have call successors, (2371), 476 states have call predecessors, (2371), 475 states have return successors, (2368), 2314 states have call predecessors, (2368), 2368 states have call successors, (2368) [2022-07-12 15:27:36,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10151 states to 10151 states and 14548 transitions. [2022-07-12 15:27:36,625 INFO L78 Accepts]: Start accepts. Automaton has 10151 states and 14548 transitions. Word has length 248 [2022-07-12 15:27:36,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:27:36,626 INFO L495 AbstractCegarLoop]: Abstraction has 10151 states and 14548 transitions. [2022-07-12 15:27:36,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-12 15:27:36,628 INFO L276 IsEmpty]: Start isEmpty. Operand 10151 states and 14548 transitions. [2022-07-12 15:27:36,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-12 15:27:36,636 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:27:36,636 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:27:36,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 15:27:36,637 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 15:27:36,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:27:36,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1559446748, now seen corresponding path program 1 times [2022-07-12 15:27:36,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:27:36,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778551637] [2022-07-12 15:27:36,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:27:36,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:27:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:27:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:27:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:27:37,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:27:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:27:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:27:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:27:37,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:27:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:27:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 15:27:37,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 15:27:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:37,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:27:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:37,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 15:27:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 15:27:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-12 15:27:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 15:27:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:27:37,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 15:27:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-12 15:27:37,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-12 15:27:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-12 15:27:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:37,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2022-07-12 15:27:37,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:27:37,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778551637] [2022-07-12 15:27:37,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778551637] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:27:37,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:27:37,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:27:37,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032535662] [2022-07-12 15:27:37,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:27:37,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:27:37,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:27:37,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:27:37,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:27:37,264 INFO L87 Difference]: Start difference. First operand 10151 states and 14548 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-12 15:27:42,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:27:42,375 INFO L93 Difference]: Finished difference Result 27574 states and 39529 transitions. [2022-07-12 15:27:42,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:27:42,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 239 [2022-07-12 15:27:42,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:27:42,481 INFO L225 Difference]: With dead ends: 27574 [2022-07-12 15:27:42,482 INFO L226 Difference]: Without dead ends: 17462 [2022-07-12 15:27:42,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:27:42,533 INFO L413 NwaCegarLoop]: 5376 mSDtfsCounter, 4961 mSDsluCounter, 5601 mSDsCounter, 0 mSdLazyCounter, 3085 mSolverCounterSat, 1954 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5609 SdHoareTripleChecker+Valid, 10977 SdHoareTripleChecker+Invalid, 5039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1954 IncrementalHoareTripleChecker+Valid, 3085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-12 15:27:42,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5609 Valid, 10977 Invalid, 5039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1954 Valid, 3085 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-07-12 15:27:42,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17462 states. [2022-07-12 15:27:43,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17462 to 17252. [2022-07-12 15:27:43,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17252 states, 12363 states have (on average 1.3364070209496077) internal successors, (16522), 12758 states have internal predecessors, (16522), 4027 states have call successors, (4027), 861 states have call predecessors, (4027), 860 states have return successors, (4028), 3922 states have call predecessors, (4028), 4024 states have call successors, (4028) [2022-07-12 15:27:43,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17252 states to 17252 states and 24577 transitions. [2022-07-12 15:27:43,157 INFO L78 Accepts]: Start accepts. Automaton has 17252 states and 24577 transitions. Word has length 239 [2022-07-12 15:27:43,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:27:43,158 INFO L495 AbstractCegarLoop]: Abstraction has 17252 states and 24577 transitions. [2022-07-12 15:27:43,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-12 15:27:43,159 INFO L276 IsEmpty]: Start isEmpty. Operand 17252 states and 24577 transitions. [2022-07-12 15:27:43,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-07-12 15:27:43,170 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:27:43,170 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:27:43,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 15:27:43,171 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 15:27:43,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:27:43,171 INFO L85 PathProgramCache]: Analyzing trace with hash 281181501, now seen corresponding path program 1 times [2022-07-12 15:27:43,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:27:43,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802819638] [2022-07-12 15:27:43,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:27:43,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:27:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:27:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:27:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:27:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:27:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:27:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:43,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:27:43,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:27:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:27:43,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:27:43,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 15:27:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 15:27:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:27:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 15:27:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 15:27:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-12 15:27:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 15:27:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:27:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 15:27:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-12 15:27:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 15:27:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 15:27:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-12 15:27:43,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-12 15:27:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-12 15:27:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 15:27:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:43,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1470 trivial. 0 not checked. [2022-07-12 15:27:43,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:27:43,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802819638] [2022-07-12 15:27:43,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802819638] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:27:43,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:27:43,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:27:43,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598232572] [2022-07-12 15:27:43,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:27:43,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:27:43,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:27:43,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:27:43,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:27:43,832 INFO L87 Difference]: Start difference. First operand 17252 states and 24577 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 15:27:53,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:27:53,114 INFO L93 Difference]: Finished difference Result 64076 states and 91411 transitions. [2022-07-12 15:27:53,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 15:27:53,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 277 [2022-07-12 15:27:53,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:27:53,363 INFO L225 Difference]: With dead ends: 64076 [2022-07-12 15:27:53,364 INFO L226 Difference]: Without dead ends: 48615 [2022-07-12 15:27:53,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:27:53,430 INFO L413 NwaCegarLoop]: 8867 mSDtfsCounter, 11085 mSDsluCounter, 9613 mSDsCounter, 0 mSdLazyCounter, 5990 mSolverCounterSat, 3556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12266 SdHoareTripleChecker+Valid, 18480 SdHoareTripleChecker+Invalid, 9546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3556 IncrementalHoareTripleChecker+Valid, 5990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:27:53,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12266 Valid, 18480 Invalid, 9546 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3556 Valid, 5990 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-07-12 15:27:53,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48615 states. [2022-07-12 15:27:55,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48615 to 48068. [2022-07-12 15:27:55,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48068 states, 34443 states have (on average 1.3360044130882909) internal successors, (46016), 35530 states have internal predecessors, (46016), 11167 states have call successors, (11167), 2461 states have call predecessors, (11167), 2456 states have return successors, (11168), 10874 states have call predecessors, (11168), 11164 states have call successors, (11168) [2022-07-12 15:27:55,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48068 states to 48068 states and 68351 transitions. [2022-07-12 15:27:55,508 INFO L78 Accepts]: Start accepts. Automaton has 48068 states and 68351 transitions. Word has length 277 [2022-07-12 15:27:55,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:27:55,509 INFO L495 AbstractCegarLoop]: Abstraction has 48068 states and 68351 transitions. [2022-07-12 15:27:55,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-12 15:27:55,509 INFO L276 IsEmpty]: Start isEmpty. Operand 48068 states and 68351 transitions. [2022-07-12 15:27:55,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-07-12 15:27:55,521 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:27:55,521 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:27:55,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 15:27:55,521 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 15:27:55,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:27:55,522 INFO L85 PathProgramCache]: Analyzing trace with hash -612304837, now seen corresponding path program 1 times [2022-07-12 15:27:55,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:27:55,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843534567] [2022-07-12 15:27:55,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:27:55,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:27:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:55,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:27:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:55,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:55,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:27:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:55,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:55,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:55,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:27:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:55,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:55,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:27:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:55,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:55,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:27:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:55,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:55,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:27:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:55,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:55,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:27:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:55,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:27:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:27:56,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 15:27:56,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 15:27:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:27:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 15:27:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 15:27:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-12 15:27:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 15:27:56,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:27:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 15:27:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-12 15:27:56,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 15:27:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 15:27:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-12 15:27:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:27:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-12 15:27:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-12 15:27:56,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 15:27:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:27:56,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1480 trivial. 0 not checked. [2022-07-12 15:27:56,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:27:56,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843534567] [2022-07-12 15:27:56,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843534567] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:27:56,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:27:56,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 15:27:56,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547137982] [2022-07-12 15:27:56,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:27:56,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 15:27:56,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:27:56,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 15:27:56,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:27:56,248 INFO L87 Difference]: Start difference. First operand 48068 states and 68351 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-12 15:28:01,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:28:01,063 INFO L93 Difference]: Finished difference Result 48597 states and 69400 transitions. [2022-07-12 15:28:01,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:28:01,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 277 [2022-07-12 15:28:01,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:28:01,378 INFO L225 Difference]: With dead ends: 48597 [2022-07-12 15:28:01,379 INFO L226 Difference]: Without dead ends: 48196 [2022-07-12 15:28:01,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-12 15:28:01,446 INFO L413 NwaCegarLoop]: 4301 mSDtfsCounter, 4408 mSDsluCounter, 5211 mSDsCounter, 0 mSdLazyCounter, 2325 mSolverCounterSat, 1312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 9512 SdHoareTripleChecker+Invalid, 3637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1312 IncrementalHoareTripleChecker+Valid, 2325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-12 15:28:01,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4904 Valid, 9512 Invalid, 3637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1312 Valid, 2325 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-12 15:28:01,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48196 states. [2022-07-12 15:28:03,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48196 to 47747. [2022-07-12 15:28:03,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47747 states, 34270 states have (on average 1.3361248905748468) internal successors, (45789), 35319 states have internal predecessors, (45789), 11036 states have call successors, (11036), 2440 states have call predecessors, (11036), 2440 states have return successors, (11036), 10785 states have call predecessors, (11036), 11036 states have call successors, (11036) [2022-07-12 15:28:03,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47747 states to 47747 states and 67861 transitions. [2022-07-12 15:28:03,457 INFO L78 Accepts]: Start accepts. Automaton has 47747 states and 67861 transitions. Word has length 277 [2022-07-12 15:28:03,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:28:03,458 INFO L495 AbstractCegarLoop]: Abstraction has 47747 states and 67861 transitions. [2022-07-12 15:28:03,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-12 15:28:03,459 INFO L276 IsEmpty]: Start isEmpty. Operand 47747 states and 67861 transitions. [2022-07-12 15:28:03,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-07-12 15:28:03,507 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:28:03,507 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 17, 17, 17, 17, 17, 17, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:28:03,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 15:28:03,508 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 15:28:03,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:28:03,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1215440296, now seen corresponding path program 1 times [2022-07-12 15:28:03,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:28:03,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833251274] [2022-07-12 15:28:03,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:28:03,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:28:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:28:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:28:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:03,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:28:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:28:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:28:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:28:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:28:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:28:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:28:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 15:28:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:03,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 15:28:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:28:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 15:28:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:04,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 15:28:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-12 15:28:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 15:28:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:28:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 15:28:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-12 15:28:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 15:28:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 15:28:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-12 15:28:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-12 15:28:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-12 15:28:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-07-12 15:28:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-12 15:28:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-12 15:28:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-07-12 15:28:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:04,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1486 trivial. 0 not checked. [2022-07-12 15:28:04,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:28:04,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833251274] [2022-07-12 15:28:04,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833251274] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:28:04,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:28:04,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:28:04,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434359023] [2022-07-12 15:28:04,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:28:04,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:28:04,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:28:04,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:28:04,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:28:04,354 INFO L87 Difference]: Start difference. First operand 47747 states and 67861 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-07-12 15:28:10,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:28:10,052 INFO L93 Difference]: Finished difference Result 115859 states and 164902 transitions. [2022-07-12 15:28:10,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:28:10,053 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 310 [2022-07-12 15:28:10,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:28:10,589 INFO L225 Difference]: With dead ends: 115859 [2022-07-12 15:28:10,590 INFO L226 Difference]: Without dead ends: 69903 [2022-07-12 15:28:10,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:28:10,766 INFO L413 NwaCegarLoop]: 7729 mSDtfsCounter, 4203 mSDsluCounter, 6765 mSDsCounter, 0 mSdLazyCounter, 3073 mSolverCounterSat, 1376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4843 SdHoareTripleChecker+Valid, 14494 SdHoareTripleChecker+Invalid, 4449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1376 IncrementalHoareTripleChecker+Valid, 3073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-12 15:28:10,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4843 Valid, 14494 Invalid, 4449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1376 Valid, 3073 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-12 15:28:10,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69903 states. [2022-07-12 15:28:12,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69903 to 69236. [2022-07-12 15:28:12,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69236 states, 49600 states have (on average 1.3338104838709677) internal successors, (66157), 51129 states have internal predecessors, (66157), 16034 states have call successors, (16034), 3601 states have call predecessors, (16034), 3601 states have return successors, (16034), 15663 states have call predecessors, (16034), 16034 states have call successors, (16034) [2022-07-12 15:28:13,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69236 states to 69236 states and 98225 transitions. [2022-07-12 15:28:13,235 INFO L78 Accepts]: Start accepts. Automaton has 69236 states and 98225 transitions. Word has length 310 [2022-07-12 15:28:13,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:28:13,236 INFO L495 AbstractCegarLoop]: Abstraction has 69236 states and 98225 transitions. [2022-07-12 15:28:13,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-07-12 15:28:13,236 INFO L276 IsEmpty]: Start isEmpty. Operand 69236 states and 98225 transitions. [2022-07-12 15:28:13,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-07-12 15:28:13,310 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:28:13,310 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 17, 17, 17, 17, 17, 17, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:28:13,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 15:28:13,311 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 15:28:13,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:28:13,312 INFO L85 PathProgramCache]: Analyzing trace with hash -147481064, now seen corresponding path program 1 times [2022-07-12 15:28:13,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:28:13,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169537087] [2022-07-12 15:28:13,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:28:13,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:28:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:13,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:28:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:13,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:13,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:28:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:13,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:13,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:28:13,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:13,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:13,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:28:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:13,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:13,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:13,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:28:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:13,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:13,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:13,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:28:13,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:13,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:13,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:28:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:13,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:13,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:13,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:28:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:13,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:13,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:28:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:13,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:13,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 15:28:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:13,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 15:28:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:14,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:28:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 15:28:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 15:28:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-12 15:28:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 15:28:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:14,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:28:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 15:28:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-12 15:28:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 15:28:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 15:28:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-12 15:28:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-12 15:28:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-12 15:28:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-12 15:28:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-12 15:28:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-12 15:28:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:28:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:28:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-12 15:28:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:14,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1584 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2022-07-12 15:28:14,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:28:14,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169537087] [2022-07-12 15:28:14,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169537087] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:28:14,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:28:14,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:28:14,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042114044] [2022-07-12 15:28:14,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:28:14,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:28:14,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:28:14,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:28:14,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:28:14,287 INFO L87 Difference]: Start difference. First operand 69236 states and 98225 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-12 15:28:20,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:28:20,722 INFO L93 Difference]: Finished difference Result 185273 states and 264044 transitions. [2022-07-12 15:28:20,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:28:20,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 331 [2022-07-12 15:28:20,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:28:21,546 INFO L225 Difference]: With dead ends: 185273 [2022-07-12 15:28:21,547 INFO L226 Difference]: Without dead ends: 110334 [2022-07-12 15:28:21,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:28:21,736 INFO L413 NwaCegarLoop]: 8273 mSDtfsCounter, 4299 mSDsluCounter, 7234 mSDsCounter, 0 mSdLazyCounter, 3042 mSolverCounterSat, 1316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4954 SdHoareTripleChecker+Valid, 15507 SdHoareTripleChecker+Invalid, 4358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1316 IncrementalHoareTripleChecker+Valid, 3042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-12 15:28:21,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4954 Valid, 15507 Invalid, 4358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1316 Valid, 3042 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-12 15:28:21,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110334 states. [2022-07-12 15:28:24,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110334 to 82609. [2022-07-12 15:28:24,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82609 states, 59154 states have (on average 1.3342123947662035) internal successors, (78924), 60999 states have internal predecessors, (78924), 19213 states have call successors, (19213), 4241 states have call predecessors, (19213), 4241 states have return successors, (19213), 18770 states have call predecessors, (19213), 19213 states have call successors, (19213) [2022-07-12 15:28:25,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82609 states to 82609 states and 117350 transitions. [2022-07-12 15:28:25,065 INFO L78 Accepts]: Start accepts. Automaton has 82609 states and 117350 transitions. Word has length 331 [2022-07-12 15:28:25,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:28:25,066 INFO L495 AbstractCegarLoop]: Abstraction has 82609 states and 117350 transitions. [2022-07-12 15:28:25,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-12 15:28:25,066 INFO L276 IsEmpty]: Start isEmpty. Operand 82609 states and 117350 transitions. [2022-07-12 15:28:25,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-07-12 15:28:25,148 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:28:25,148 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 17, 17, 17, 17, 17, 17, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:28:25,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 15:28:25,149 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 15:28:25,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:28:25,150 INFO L85 PathProgramCache]: Analyzing trace with hash -986514726, now seen corresponding path program 1 times [2022-07-12 15:28:25,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:28:25,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356221381] [2022-07-12 15:28:25,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:28:25,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:28:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:28:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:25,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:28:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:28:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:28:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:28:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:28:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:28:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:28:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:28:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 15:28:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 15:28:25,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:28:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 15:28:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 15:28:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-12 15:28:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 15:28:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:28:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 15:28:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-12 15:28:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 15:28:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 15:28:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-12 15:28:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-12 15:28:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-12 15:28:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-12 15:28:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-12 15:28:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-12 15:28:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:28:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:28:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-12 15:28:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:25,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1584 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2022-07-12 15:28:25,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:28:25,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356221381] [2022-07-12 15:28:25,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356221381] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:28:25,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:28:25,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:28:25,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198324604] [2022-07-12 15:28:25,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:28:25,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:28:25,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:28:25,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:28:25,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:28:25,963 INFO L87 Difference]: Start difference. First operand 82609 states and 117350 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-12 15:28:33,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:28:33,191 INFO L93 Difference]: Finished difference Result 212107 states and 302527 transitions. [2022-07-12 15:28:33,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:28:33,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 331 [2022-07-12 15:28:33,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:28:34,172 INFO L225 Difference]: With dead ends: 212107 [2022-07-12 15:28:34,173 INFO L226 Difference]: Without dead ends: 131289 [2022-07-12 15:28:34,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:28:34,376 INFO L413 NwaCegarLoop]: 8325 mSDtfsCounter, 4293 mSDsluCounter, 7257 mSDsCounter, 0 mSdLazyCounter, 3043 mSolverCounterSat, 1302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4949 SdHoareTripleChecker+Valid, 15582 SdHoareTripleChecker+Invalid, 4345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1302 IncrementalHoareTripleChecker+Valid, 3043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:28:34,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4949 Valid, 15582 Invalid, 4345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1302 Valid, 3043 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-12 15:28:34,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131289 states. [2022-07-12 15:28:38,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131289 to 130144. [2022-07-12 15:28:38,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130144 states, 93114 states have (on average 1.3344287647399962) internal successors, (124254), 96087 states have internal predecessors, (124254), 30505 states have call successors, (30505), 6524 states have call predecessors, (30505), 6524 states have return successors, (30505), 29804 states have call predecessors, (30505), 30505 states have call successors, (30505) [2022-07-12 15:28:39,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130144 states to 130144 states and 185264 transitions. [2022-07-12 15:28:39,650 INFO L78 Accepts]: Start accepts. Automaton has 130144 states and 185264 transitions. Word has length 331 [2022-07-12 15:28:39,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 15:28:39,652 INFO L495 AbstractCegarLoop]: Abstraction has 130144 states and 185264 transitions. [2022-07-12 15:28:39,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-12 15:28:39,652 INFO L276 IsEmpty]: Start isEmpty. Operand 130144 states and 185264 transitions. [2022-07-12 15:28:39,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-07-12 15:28:39,757 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 15:28:39,758 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 17, 17, 17, 17, 17, 17, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 15:28:39,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 15:28:39,758 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 15:28:39,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 15:28:39,759 INFO L85 PathProgramCache]: Analyzing trace with hash 849579992, now seen corresponding path program 1 times [2022-07-12 15:28:39,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 15:28:39,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486817657] [2022-07-12 15:28:39,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 15:28:39,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 15:28:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 15:28:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 15:28:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 15:28:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 15:28:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 15:28:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 15:28:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 15:28:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 15:28:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 15:28:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:40,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 15:28:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 15:28:40,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 15:28:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-12 15:28:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-12 15:28:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-12 15:28:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-12 15:28:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-12 15:28:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 15:28:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-12 15:28:40,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-12 15:28:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 15:28:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-12 15:28:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:40,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-12 15:28:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-12 15:28:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-12 15:28:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-07-12 15:28:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-12 15:28:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-12 15:28:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-12 15:28:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-12 15:28:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 15:28:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 15:28:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 15:28:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-12 15:28:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 15:28:40,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1765 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1737 trivial. 0 not checked. [2022-07-12 15:28:40,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 15:28:40,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486817657] [2022-07-12 15:28:40,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486817657] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 15:28:40,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 15:28:40,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 15:28:40,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311831136] [2022-07-12 15:28:40,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 15:28:40,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 15:28:40,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 15:28:40,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 15:28:40,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 15:28:40,353 INFO L87 Difference]: Start difference. First operand 130144 states and 185264 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-12 15:28:49,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 15:28:49,045 INFO L93 Difference]: Finished difference Result 307501 states and 439135 transitions. [2022-07-12 15:28:49,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 15:28:49,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 355 [2022-07-12 15:28:49,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 15:28:50,356 INFO L225 Difference]: With dead ends: 307501 [2022-07-12 15:28:50,356 INFO L226 Difference]: Without dead ends: 171726 [2022-07-12 15:28:50,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 15:28:50,780 INFO L413 NwaCegarLoop]: 8381 mSDtfsCounter, 4281 mSDsluCounter, 7297 mSDsCounter, 0 mSdLazyCounter, 3038 mSolverCounterSat, 1287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4936 SdHoareTripleChecker+Valid, 15678 SdHoareTripleChecker+Invalid, 4325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1287 IncrementalHoareTripleChecker+Valid, 3038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-12 15:28:50,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4936 Valid, 15678 Invalid, 4325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1287 Valid, 3038 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-12 15:28:50,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171726 states.