./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 f4b24e32 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-?-f4b24e3 [2022-07-14 03:08:30,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 03:08:30,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 03:08:30,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 03:08:30,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 03:08:30,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 03:08:30,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 03:08:30,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 03:08:30,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 03:08:30,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 03:08:30,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 03:08:30,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 03:08:30,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 03:08:30,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 03:08:30,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 03:08:30,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 03:08:30,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 03:08:30,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 03:08:30,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 03:08:30,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 03:08:30,618 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 03:08:30,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 03:08:30,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 03:08:30,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 03:08:30,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 03:08:30,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 03:08:30,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 03:08:30,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 03:08:30,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 03:08:30,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 03:08:30,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 03:08:30,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 03:08:30,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 03:08:30,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 03:08:30,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 03:08:30,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 03:08:30,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 03:08:30,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 03:08:30,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 03:08:30,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 03:08:30,637 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 03:08:30,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 03:08:30,640 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 03:08:30,659 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 03:08:30,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 03:08:30,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 03:08:30,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 03:08:30,660 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 03:08:30,661 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 03:08:30,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 03:08:30,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 03:08:30,661 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 03:08:30,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 03:08:30,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 03:08:30,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 03:08:30,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 03:08:30,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 03:08:30,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 03:08:30,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 03:08:30,662 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 03:08:30,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 03:08:30,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 03:08:30,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 03:08:30,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 03:08:30,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 03:08:30,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 03:08:30,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 03:08:30,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 03:08:30,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 03:08:30,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 03:08:30,664 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 03:08:30,664 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 03:08:30,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 03:08:30,665 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 079fce486bad33abab391a672044e04aae9233622e9697c4aac88598201cd13f [2022-07-14 03:08:30,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 03:08:30,875 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 03:08:30,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 03:08:30,879 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 03:08:30,879 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 03:08:30,880 INFO L432 ainManager$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 [2022-07-14 03:08:30,938 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2a6218b4/fb9facbfe2ec480da298ecda9afbf580/FLAG0dfadea0d [2022-07-14 03:08:31,559 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 03:08:31,560 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 [2022-07-14 03:08:31,603 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2a6218b4/fb9facbfe2ec480da298ecda9afbf580/FLAG0dfadea0d [2022-07-14 03:08:31,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2a6218b4/fb9facbfe2ec480da298ecda9afbf580 [2022-07-14 03:08:31,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 03:08:31,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 03:08:31,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 03:08:31,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 03:08:31,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 03:08:31,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:08:31" (1/1) ... [2022-07-14 03:08:31,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b27ee46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:08:31, skipping insertion in model container [2022-07-14 03:08:31,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:08:31" (1/1) ... [2022-07-14 03:08:31,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 03:08:32,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 03:08:34,709 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] [2022-07-14 03:08:34,712 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] [2022-07-14 03:08:34,719 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] [2022-07-14 03:08:34,739 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] [2022-07-14 03:08:34,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:08:34,839 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 03:08:35,194 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] [2022-07-14 03:08:35,194 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] [2022-07-14 03:08:35,195 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] [2022-07-14 03:08:35,195 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] [2022-07-14 03:08:35,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 03:08:35,378 INFO L208 MainTranslator]: Completed translation [2022-07-14 03:08:35,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:08:35 WrapperNode [2022-07-14 03:08:35,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 03:08:35,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 03:08:35,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 03:08:35,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 03:08:35,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:08:35" (1/1) ... [2022-07-14 03:08:35,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:08:35" (1/1) ... [2022-07-14 03:08:35,751 INFO L137 Inliner]: procedures = 447, calls = 4156, calls flagged for inlining = 247, calls inlined = 238, statements flattened = 9135 [2022-07-14 03:08:35,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 03:08:35,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 03:08:35,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 03:08:35,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 03:08:35,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:08:35" (1/1) ... [2022-07-14 03:08:35,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:08:35" (1/1) ... [2022-07-14 03:08:35,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:08:35" (1/1) ... [2022-07-14 03:08:35,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:08:35" (1/1) ... [2022-07-14 03:08:35,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:08:35" (1/1) ... [2022-07-14 03:08:35,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:08:35" (1/1) ... [2022-07-14 03:08:35,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:08:35" (1/1) ... [2022-07-14 03:08:35,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 03:08:35,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 03:08:35,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 03:08:35,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 03:08:35,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:08:35" (1/1) ... [2022-07-14 03:08:36,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 03:08:36,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 03:08:36,021 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) [2022-07-14 03:08:36,027 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 [2022-07-14 03:08:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-14 03:08:36,116 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-14 03:08:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 03:08:36,116 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 03:08:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-07-14 03:08:36,116 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-07-14 03:08:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2022-07-14 03:08:36,116 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2022-07-14 03:08:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_nway_reset [2022-07-14 03:08:36,116 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_nway_reset [2022-07-14 03:08:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-14 03:08:36,116 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-14 03:08:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 03:08:36,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 03:08:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-14 03:08:36,116 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-14 03:08:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure set_8021q_mode [2022-07-14 03:08:36,116 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8021q_mode [2022-07-14 03:08:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_remove_one [2022-07-14 03:08:36,117 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_remove_one [2022-07-14 03:08:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-07-14 03:08:36,117 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-07-14 03:08:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure issue_and_wait [2022-07-14 03:08:36,117 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_and_wait [2022-07-14 03:08:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 03:08:36,117 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 03:08:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-07-14 03:08:36,117 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-07-14 03:08:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-07-14 03:08:36,117 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-07-14 03:08:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure window_write32 [2022-07-14 03:08:36,117 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write32 [2022-07-14 03:08:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-07-14 03:08:36,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-07-14 03:08:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-07-14 03:08:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-07-14 03:08:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 03:08:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 03:08:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure window_set [2022-07-14 03:08:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure window_set [2022-07-14 03:08:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-14 03:08:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-14 03:08:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-07-14 03:08:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-07-14 03:08:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-14 03:08:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-14 03:08:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-07-14 03:08:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-07-14 03:08:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-14 03:08:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-14 03:08:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-07-14 03:08:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-07-14 03:08:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-14 03:08:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-14 03:08:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 03:08:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 03:08:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-07-14 03:08:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-07-14 03:08:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 03:08:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 03:08:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-14 03:08:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-14 03:08:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 03:08:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2022-07-14 03:08:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2022-07-14 03:08:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-07-14 03:08:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-07-14 03:08:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 03:08:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 03:08:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-14 03:08:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-14 03:08:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-07-14 03:08:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-07-14 03:08:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 03:08:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_tx_timeout [2022-07-14 03:08:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_tx_timeout [2022-07-14 03:08:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-07-14 03:08:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-07-14 03:08:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2022-07-14 03:08:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2022-07-14 03:08:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 03:08:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 03:08:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-07-14 03:08:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-07-14 03:08:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-14 03:08:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-14 03:08:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 03:08:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-07-14 03:08:36,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-07-14 03:08:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 03:08:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_interrupt [2022-07-14 03:08:36,121 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_interrupt [2022-07-14 03:08:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-07-14 03:08:36,121 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-07-14 03:08:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 03:08:36,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 03:08:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 03:08:36,121 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 03:08:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-07-14 03:08:36,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-07-14 03:08:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-07-14 03:08:36,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-07-14 03:08:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-07-14 03:08:36,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-07-14 03:08:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_set_duplex [2022-07-14 03:08:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_set_duplex [2022-07-14 03:08:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-07-14 03:08:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-07-14 03:08:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-07-14 03:08:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-07-14 03:08:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-14 03:08:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-14 03:08:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_error [2022-07-14 03:08:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_error [2022-07-14 03:08:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-14 03:08:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-14 03:08:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_close [2022-07-14 03:08:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_close [2022-07-14 03:08:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 03:08:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-07-14 03:08:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-07-14 03:08:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2022-07-14 03:08:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2022-07-14 03:08:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-07-14 03:08:36,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-07-14 03:08:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-07-14 03:08:36,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-07-14 03:08:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-07-14 03:08:36,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-07-14 03:08:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-07-14 03:08:36,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-07-14 03:08:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 03:08:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 03:08:36,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 03:08:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 03:08:36,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 03:08:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 03:08:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-07-14 03:08:36,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-07-14 03:08:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 03:08:36,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 03:08:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-14 03:08:36,127 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-14 03:08:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-14 03:08:36,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-14 03:08:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_set_WOL [2022-07-14 03:08:36,128 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_set_WOL [2022-07-14 03:08:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-14 03:08:36,129 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-14 03:08:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure window_write16 [2022-07-14 03:08:36,129 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write16 [2022-07-14 03:08:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-07-14 03:08:36,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-07-14 03:08:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-14 03:08:36,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-14 03:08:36,129 INFO L130 BoogieDeclarations]: Found specification of procedure window_read8 [2022-07-14 03:08:36,130 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read8 [2022-07-14 03:08:36,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2022-07-14 03:08:36,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2022-07-14 03:08:36,130 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2022-07-14 03:08:36,130 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2022-07-14 03:08:36,130 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 03:08:36,130 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 03:08:36,130 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-14 03:08:36,131 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-14 03:08:36,131 INFO L130 BoogieDeclarations]: Found specification of procedure poll_vortex [2022-07-14 03:08:36,131 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_vortex [2022-07-14 03:08:36,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-07-14 03:08:36,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-07-14 03:08:36,131 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_check_media [2022-07-14 03:08:36,131 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_check_media [2022-07-14 03:08:36,131 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-14 03:08:36,131 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-14 03:08:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2022-07-14 03:08:36,132 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2022-07-14 03:08:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-07-14 03:08:36,132 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-07-14 03:08:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_open [2022-07-14 03:08:36,132 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_open [2022-07-14 03:08:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure dump_tx_ring [2022-07-14 03:08:36,133 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_tx_ring [2022-07-14 03:08:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-07-14 03:08:36,133 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-07-14 03:08:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 03:08:36,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 03:08:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-07-14 03:08:36,133 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-07-14 03:08:36,134 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_probe1 [2022-07-14 03:08:36,134 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_probe1 [2022-07-14 03:08:36,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 03:08:36,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 03:08:36,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 03:08:36,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 03:08:36,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-07-14 03:08:36,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-07-14 03:08:36,134 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2022-07-14 03:08:36,135 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2022-07-14 03:08:36,135 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-14 03:08:36,135 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-14 03:08:36,135 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-14 03:08:36,135 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-14 03:08:36,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-07-14 03:08:36,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-07-14 03:08:36,135 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-14 03:08:36,135 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-14 03:08:36,136 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-07-14 03:08:36,136 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-07-14 03:08:36,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 03:08:36,136 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-07-14 03:08:36,136 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-07-14 03:08:36,136 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-14 03:08:36,136 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-14 03:08:36,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2022-07-14 03:08:36,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2022-07-14 03:08:36,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 03:08:36,137 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_suspend [2022-07-14 03:08:36,137 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_suspend [2022-07-14 03:08:36,137 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_interrupt [2022-07-14 03:08:36,137 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_interrupt [2022-07-14 03:08:36,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 03:08:36,137 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-14 03:08:36,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-07-14 03:08:36,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-07-14 03:08:36,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-07-14 03:08:36,138 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-14 03:08:36,138 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-14 03:08:36,138 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 03:08:36,138 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 03:08:36,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-07-14 03:08:36,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-07-14 03:08:36,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-07-14 03:08:36,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-07-14 03:08:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-14 03:08:36,139 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-14 03:08:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2022-07-14 03:08:36,139 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2022-07-14 03:08:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_resume [2022-07-14 03:08:36,139 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_resume [2022-07-14 03:08:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2022-07-14 03:08:36,140 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2022-07-14 03:08:36,140 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-14 03:08:36,140 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-14 03:08:36,140 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_rx [2022-07-14 03:08:36,140 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_rx [2022-07-14 03:08:36,140 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-07-14 03:08:36,140 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-07-14 03:08:36,140 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 03:08:36,140 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 03:08:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-14 03:08:36,141 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-14 03:08:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-14 03:08:36,141 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-14 03:08:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_delay [2022-07-14 03:08:36,141 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_delay [2022-07-14 03:08:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 03:08:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_down [2022-07-14 03:08:36,141 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_down [2022-07-14 03:08:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-07-14 03:08:36,142 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-07-14 03:08:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-14 03:08:36,142 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-14 03:08:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 03:08:36,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 03:08:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure window_write8 [2022-07-14 03:08:36,142 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write8 [2022-07-14 03:08:36,142 INFO L130 BoogieDeclarations]: Found specification of procedure window_read32 [2022-07-14 03:08:36,143 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read32 [2022-07-14 03:08:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-07-14 03:08:36,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-07-14 03:08:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2022-07-14 03:08:36,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2022-07-14 03:08:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-14 03:08:36,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-14 03:08:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_up [2022-07-14 03:08:36,143 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_up [2022-07-14 03:08:36,143 INFO L130 BoogieDeclarations]: Found specification of procedure window_read16 [2022-07-14 03:08:36,144 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read16 [2022-07-14 03:08:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-07-14 03:08:36,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-07-14 03:08:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-14 03:08:36,144 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-14 03:08:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-07-14 03:08:36,144 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-07-14 03:08:36,144 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-14 03:08:36,144 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-14 03:08:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-14 03:08:36,145 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-14 03:08:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 03:08:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-14 03:08:36,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-14 03:08:36,145 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-14 03:08:36,145 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-14 03:08:36,879 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 03:08:36,881 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 03:08:37,817 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 03:08:41,611 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-07-14 03:08:41,683 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 03:08:41,700 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 03:08:41,700 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 03:08:41,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:08:41 BoogieIcfgContainer [2022-07-14 03:08:41,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 03:08:41,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 03:08:41,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 03:08:41,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 03:08:41,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 03:08:31" (1/3) ... [2022-07-14 03:08:41,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c672dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:08:41, skipping insertion in model container [2022-07-14 03:08:41,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:08:35" (2/3) ... [2022-07-14 03:08:41,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c672dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 03:08:41, skipping insertion in model container [2022-07-14 03:08:41,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:08:41" (3/3) ... [2022-07-14 03:08:41,712 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-3com-3c59x.cil.i [2022-07-14 03:08:41,722 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 03:08:41,722 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-14 03:08:41,798 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 03:08:41,805 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@2352c789, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3b3ac015 [2022-07-14 03:08:41,805 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-14 03:08:41,820 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) [2022-07-14 03:08:41,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-07-14 03:08:41,850 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:08:41,851 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] [2022-07-14 03:08:41,851 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] === [2022-07-14 03:08:41,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:08:41,857 INFO L85 PathProgramCache]: Analyzing trace with hash -689487057, now seen corresponding path program 1 times [2022-07-14 03:08:41,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:08:41,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940173824] [2022-07-14 03:08:41,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:08:41,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:08:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:08:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:08:42,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:08:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:08:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:42,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:08:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:08:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:42,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:08:42,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:08:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:08:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 03:08:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 03:08:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-14 03:08:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-14 03:08:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-14 03:08:42,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-14 03:08:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-14 03:08:42,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 03:08:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 03:08:42,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-14 03:08:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:42,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2022-07-14 03:08:42,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:08:42,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940173824] [2022-07-14 03:08:42,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940173824] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:08:42,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:08:42,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:08:42,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010425199] [2022-07-14 03:08:42,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:08:42,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 03:08:42,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:08:42,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 03:08:42,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 03:08:42,920 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) [2022-07-14 03:08:48,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:08:48,004 INFO L93 Difference]: Finished difference Result 9327 states and 13898 transitions. [2022-07-14 03:08:48,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:08:48,006 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 [2022-07-14 03:08:48,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:08:48,059 INFO L225 Difference]: With dead ends: 9327 [2022-07-14 03:08:48,059 INFO L226 Difference]: Without dead ends: 6198 [2022-07-14 03:08:48,082 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 [2022-07-14 03:08:48,084 INFO L413 NwaCegarLoop]: 4871 mSDtfsCounter, 5141 mSDsluCounter, 5200 mSDsCounter, 0 mSdLazyCounter, 3043 mSolverCounterSat, 2036 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5805 SdHoareTripleChecker+Valid, 10071 SdHoareTripleChecker+Invalid, 5079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2036 IncrementalHoareTripleChecker+Valid, 3043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-14 03:08:48,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5805 Valid, 10071 Invalid, 5079 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2036 Valid, 3043 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-07-14 03:08:48,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6198 states. [2022-07-14 03:08:48,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6198 to 6137. [2022-07-14 03:08:48,393 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) [2022-07-14 03:08:48,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6137 states to 6137 states and 8839 transitions. [2022-07-14 03:08:48,434 INFO L78 Accepts]: Start accepts. Automaton has 6137 states and 8839 transitions. Word has length 214 [2022-07-14 03:08:48,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:08:48,435 INFO L495 AbstractCegarLoop]: Abstraction has 6137 states and 8839 transitions. [2022-07-14 03:08:48,435 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) [2022-07-14 03:08:48,435 INFO L276 IsEmpty]: Start isEmpty. Operand 6137 states and 8839 transitions. [2022-07-14 03:08:48,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-07-14 03:08:48,442 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:08:48,442 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] [2022-07-14 03:08:48,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 03:08:48,443 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] === [2022-07-14 03:08:48,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:08:48,444 INFO L85 PathProgramCache]: Analyzing trace with hash -722015313, now seen corresponding path program 1 times [2022-07-14 03:08:48,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:08:48,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41077083] [2022-07-14 03:08:48,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:08:48,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:08:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:08:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:08:48,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:08:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:48,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:08:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:08:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:48,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:08:48,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:08:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:08:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:08:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 03:08:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 03:08:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-14 03:08:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-14 03:08:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-14 03:08:48,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-14 03:08:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-14 03:08:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 03:08:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 03:08:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-14 03:08:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:48,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 03:08:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 03:08:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-14 03:08:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:48,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1279 trivial. 0 not checked. [2022-07-14 03:08:48,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:08:48,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41077083] [2022-07-14 03:08:48,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41077083] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:08:48,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:08:48,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:08:48,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903436191] [2022-07-14 03:08:48,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:08:48,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 03:08:48,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:08:48,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 03:08:48,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 03:08:48,980 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) [2022-07-14 03:08:53,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:08:53,947 INFO L93 Difference]: Finished difference Result 16367 states and 23598 transitions. [2022-07-14 03:08:53,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:08:53,948 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 [2022-07-14 03:08:53,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:08:54,029 INFO L225 Difference]: With dead ends: 16367 [2022-07-14 03:08:54,030 INFO L226 Difference]: Without dead ends: 10269 [2022-07-14 03:08:54,070 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 [2022-07-14 03:08:54,072 INFO L413 NwaCegarLoop]: 4917 mSDtfsCounter, 5093 mSDsluCounter, 5256 mSDsCounter, 0 mSdLazyCounter, 3065 mSolverCounterSat, 2021 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s 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, 4.6s IncrementalHoareTripleChecker+Time [2022-07-14 03:08:54,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5755 Valid, 10173 Invalid, 5086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2021 Valid, 3065 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-07-14 03:08:54,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10269 states. [2022-07-14 03:08:54,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10269 to 10151. [2022-07-14 03:08:54,612 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) [2022-07-14 03:08:54,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10151 states to 10151 states and 14548 transitions. [2022-07-14 03:08:54,667 INFO L78 Accepts]: Start accepts. Automaton has 10151 states and 14548 transitions. Word has length 248 [2022-07-14 03:08:54,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:08:54,670 INFO L495 AbstractCegarLoop]: Abstraction has 10151 states and 14548 transitions. [2022-07-14 03:08:54,671 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) [2022-07-14 03:08:54,671 INFO L276 IsEmpty]: Start isEmpty. Operand 10151 states and 14548 transitions. [2022-07-14 03:08:54,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-14 03:08:54,679 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:08:54,680 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] [2022-07-14 03:08:54,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 03:08:54,680 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] === [2022-07-14 03:08:54,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:08:54,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1559446748, now seen corresponding path program 1 times [2022-07-14 03:08:54,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:08:54,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895144831] [2022-07-14 03:08:54,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:08:54,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:08:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:54,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:08:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:54,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:54,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:08:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:54,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:08:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:55,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:08:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:08:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:08:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:08:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:55,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:08:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:08:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 03:08:55,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 03:08:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:55,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-14 03:08:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-14 03:08:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:55,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-14 03:08:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-14 03:08:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-14 03:08:55,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 03:08:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:08:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 03:08:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-14 03:08:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-14 03:08:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-14 03:08:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:08:55,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2022-07-14 03:08:55,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:08:55,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895144831] [2022-07-14 03:08:55,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895144831] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:08:55,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:08:55,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:08:55,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009491970] [2022-07-14 03:08:55,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:08:55,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 03:08:55,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:08:55,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 03:08:55,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 03:08:55,244 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) [2022-07-14 03:09:00,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:09:00,164 INFO L93 Difference]: Finished difference Result 27574 states and 39529 transitions. [2022-07-14 03:09:00,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:09:00,164 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 [2022-07-14 03:09:00,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:09:00,250 INFO L225 Difference]: With dead ends: 27574 [2022-07-14 03:09:00,251 INFO L226 Difference]: Without dead ends: 17462 [2022-07-14 03:09:00,287 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 [2022-07-14 03:09:00,288 INFO L413 NwaCegarLoop]: 5376 mSDtfsCounter, 4961 mSDsluCounter, 5602 mSDsCounter, 0 mSdLazyCounter, 3085 mSolverCounterSat, 1954 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5610 SdHoareTripleChecker+Valid, 10978 SdHoareTripleChecker+Invalid, 5039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1954 IncrementalHoareTripleChecker+Valid, 3085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-14 03:09:00,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5610 Valid, 10978 Invalid, 5039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1954 Valid, 3085 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-14 03:09:00,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17462 states. [2022-07-14 03:09:00,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17462 to 17252. [2022-07-14 03:09:00,739 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) [2022-07-14 03:09:00,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17252 states to 17252 states and 24577 transitions. [2022-07-14 03:09:00,802 INFO L78 Accepts]: Start accepts. Automaton has 17252 states and 24577 transitions. Word has length 239 [2022-07-14 03:09:00,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:09:00,803 INFO L495 AbstractCegarLoop]: Abstraction has 17252 states and 24577 transitions. [2022-07-14 03:09:00,803 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) [2022-07-14 03:09:00,804 INFO L276 IsEmpty]: Start isEmpty. Operand 17252 states and 24577 transitions. [2022-07-14 03:09:00,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-07-14 03:09:00,812 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:09:00,813 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] [2022-07-14 03:09:00,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 03:09:00,813 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] === [2022-07-14 03:09:00,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:09:00,814 INFO L85 PathProgramCache]: Analyzing trace with hash 281181501, now seen corresponding path program 1 times [2022-07-14 03:09:00,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:09:00,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795065638] [2022-07-14 03:09:00,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:09:00,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:09:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:09:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:09:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:09:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:09:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:09:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:09:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:09:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:09:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:09:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 03:09:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 03:09:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-14 03:09:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:01,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-14 03:09:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-14 03:09:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-14 03:09:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-14 03:09:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 03:09:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 03:09:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-14 03:09:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-14 03:09:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 03:09:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-14 03:09:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-14 03:09:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-14 03:09:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-14 03:09:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:01,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1470 trivial. 0 not checked. [2022-07-14 03:09:01,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:09:01,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795065638] [2022-07-14 03:09:01,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795065638] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:09:01,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:09:01,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 03:09:01,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104355371] [2022-07-14 03:09:01,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:09:01,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:09:01,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:09:01,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:09:01,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:09:01,293 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) [2022-07-14 03:09:09,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:09:09,838 INFO L93 Difference]: Finished difference Result 64076 states and 91411 transitions. [2022-07-14 03:09:09,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 03:09:09,838 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 [2022-07-14 03:09:09,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:09:10,163 INFO L225 Difference]: With dead ends: 64076 [2022-07-14 03:09:10,163 INFO L226 Difference]: Without dead ends: 48615 [2022-07-14 03:09:10,263 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 [2022-07-14 03:09:10,266 INFO L413 NwaCegarLoop]: 8868 mSDtfsCounter, 11085 mSDsluCounter, 9615 mSDsCounter, 0 mSdLazyCounter, 5990 mSolverCounterSat, 3556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12266 SdHoareTripleChecker+Valid, 18483 SdHoareTripleChecker+Invalid, 9546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3556 IncrementalHoareTripleChecker+Valid, 5990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-07-14 03:09:10,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12266 Valid, 18483 Invalid, 9546 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3556 Valid, 5990 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-07-14 03:09:10,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48615 states. [2022-07-14 03:09:12,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48615 to 48068. [2022-07-14 03:09:12,427 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) [2022-07-14 03:09:12,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48068 states to 48068 states and 68351 transitions. [2022-07-14 03:09:12,652 INFO L78 Accepts]: Start accepts. Automaton has 48068 states and 68351 transitions. Word has length 277 [2022-07-14 03:09:12,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:09:12,653 INFO L495 AbstractCegarLoop]: Abstraction has 48068 states and 68351 transitions. [2022-07-14 03:09:12,654 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) [2022-07-14 03:09:12,654 INFO L276 IsEmpty]: Start isEmpty. Operand 48068 states and 68351 transitions. [2022-07-14 03:09:12,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-07-14 03:09:12,663 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:09:12,663 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] [2022-07-14 03:09:12,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 03:09:12,664 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] === [2022-07-14 03:09:12,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:09:12,664 INFO L85 PathProgramCache]: Analyzing trace with hash -612304837, now seen corresponding path program 1 times [2022-07-14 03:09:12,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:09:12,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113137278] [2022-07-14 03:09:12,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:09:12,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:09:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:09:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:09:13,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:09:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:09:13,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:09:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:09:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:13,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:09:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:13,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:09:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:09:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 03:09:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 03:09:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-14 03:09:13,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-14 03:09:13,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-14 03:09:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:13,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-14 03:09:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:13,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-14 03:09:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 03:09:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 03:09:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-14 03:09:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-14 03:09:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 03:09:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-14 03:09:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-14 03:09:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-14 03:09:13,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-14 03:09:13,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:13,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1480 trivial. 0 not checked. [2022-07-14 03:09:13,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:09:13,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113137278] [2022-07-14 03:09:13,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113137278] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:09:13,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:09:13,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 03:09:13,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160666153] [2022-07-14 03:09:13,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:09:13,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 03:09:13,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:09:13,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 03:09:13,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 03:09:13,364 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) [2022-07-14 03:09:17,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:09:17,084 INFO L93 Difference]: Finished difference Result 48597 states and 69400 transitions. [2022-07-14 03:09:17,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:09:17,085 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 [2022-07-14 03:09:17,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:09:17,296 INFO L225 Difference]: With dead ends: 48597 [2022-07-14 03:09:17,297 INFO L226 Difference]: Without dead ends: 48196 [2022-07-14 03:09:17,336 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 [2022-07-14 03:09:17,336 INFO L413 NwaCegarLoop]: 4301 mSDtfsCounter, 4408 mSDsluCounter, 5211 mSDsCounter, 0 mSdLazyCounter, 2325 mSolverCounterSat, 1312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.8s IncrementalHoareTripleChecker+Time [2022-07-14 03:09:17,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4904 Valid, 9512 Invalid, 3637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1312 Valid, 2325 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-14 03:09:17,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48196 states. [2022-07-14 03:09:18,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48196 to 47747. [2022-07-14 03:09:18,974 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) [2022-07-14 03:09:19,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47747 states to 47747 states and 67861 transitions. [2022-07-14 03:09:19,287 INFO L78 Accepts]: Start accepts. Automaton has 47747 states and 67861 transitions. Word has length 277 [2022-07-14 03:09:19,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:09:19,288 INFO L495 AbstractCegarLoop]: Abstraction has 47747 states and 67861 transitions. [2022-07-14 03:09:19,289 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) [2022-07-14 03:09:19,289 INFO L276 IsEmpty]: Start isEmpty. Operand 47747 states and 67861 transitions. [2022-07-14 03:09:19,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-07-14 03:09:19,326 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:09:19,327 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] [2022-07-14 03:09:19,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 03:09:19,327 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] === [2022-07-14 03:09:19,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:09:19,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1215440296, now seen corresponding path program 1 times [2022-07-14 03:09:19,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:09:19,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835942020] [2022-07-14 03:09:19,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:09:19,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:09:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:09:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:09:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:19,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:09:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:09:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:09:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:09:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:09:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:09:19,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:09:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 03:09:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 03:09:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-14 03:09:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-14 03:09:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-14 03:09:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-14 03:09:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-14 03:09:19,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 03:09:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 03:09:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-14 03:09:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-14 03:09:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 03:09:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-14 03:09:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-14 03:09:19,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-14 03:09:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-07-14 03:09:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-14 03:09:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-14 03:09:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-07-14 03:09:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:19,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1486 trivial. 0 not checked. [2022-07-14 03:09:19,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:09:19,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835942020] [2022-07-14 03:09:19,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835942020] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:09:19,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:09:19,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:09:19,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348576543] [2022-07-14 03:09:19,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:09:19,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 03:09:19,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:09:19,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 03:09:19,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 03:09:19,932 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) [2022-07-14 03:09:25,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:09:25,268 INFO L93 Difference]: Finished difference Result 115859 states and 164902 transitions. [2022-07-14 03:09:25,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:09:25,269 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 [2022-07-14 03:09:25,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:09:25,755 INFO L225 Difference]: With dead ends: 115859 [2022-07-14 03:09:25,756 INFO L226 Difference]: Without dead ends: 69903 [2022-07-14 03:09:25,911 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 [2022-07-14 03:09:25,912 INFO L413 NwaCegarLoop]: 7730 mSDtfsCounter, 4203 mSDsluCounter, 6766 mSDsCounter, 0 mSdLazyCounter, 3073 mSolverCounterSat, 1376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4842 SdHoareTripleChecker+Valid, 14496 SdHoareTripleChecker+Invalid, 4449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1376 IncrementalHoareTripleChecker+Valid, 3073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-14 03:09:25,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4842 Valid, 14496 Invalid, 4449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1376 Valid, 3073 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-14 03:09:25,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69903 states. [2022-07-14 03:09:27,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69903 to 69236. [2022-07-14 03:09:27,927 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) [2022-07-14 03:09:28,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69236 states to 69236 states and 98225 transitions. [2022-07-14 03:09:28,451 INFO L78 Accepts]: Start accepts. Automaton has 69236 states and 98225 transitions. Word has length 310 [2022-07-14 03:09:28,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:09:28,452 INFO L495 AbstractCegarLoop]: Abstraction has 69236 states and 98225 transitions. [2022-07-14 03:09:28,453 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) [2022-07-14 03:09:28,453 INFO L276 IsEmpty]: Start isEmpty. Operand 69236 states and 98225 transitions. [2022-07-14 03:09:28,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-07-14 03:09:28,510 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:09:28,511 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] [2022-07-14 03:09:28,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 03:09:28,511 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] === [2022-07-14 03:09:28,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:09:28,512 INFO L85 PathProgramCache]: Analyzing trace with hash -147481064, now seen corresponding path program 1 times [2022-07-14 03:09:28,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:09:28,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366200791] [2022-07-14 03:09:28,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:09:28,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:09:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:09:28,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:09:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:09:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:09:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:28,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:09:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:09:28,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:09:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:09:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:09:28,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 03:09:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 03:09:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-14 03:09:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-14 03:09:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-14 03:09:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:28,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-14 03:09:28,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-14 03:09:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 03:09:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:28,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:29,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 03:09:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:29,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-14 03:09:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:29,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-14 03:09:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:29,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 03:09:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:29,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-14 03:09:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:29,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:29,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-14 03:09:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:29,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-14 03:09:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:29,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-14 03:09:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:29,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-14 03:09:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:29,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-14 03:09:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:29,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:29,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 03:09:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:29,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 03:09:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:29,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-14 03:09:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:29,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1584 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2022-07-14 03:09:29,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:09:29,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366200791] [2022-07-14 03:09:29,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366200791] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:09:29,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:09:29,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:09:29,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731969067] [2022-07-14 03:09:29,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:09:29,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 03:09:29,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:09:29,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 03:09:29,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 03:09:29,187 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) [2022-07-14 03:09:35,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:09:35,397 INFO L93 Difference]: Finished difference Result 185273 states and 264044 transitions. [2022-07-14 03:09:35,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:09:35,397 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 [2022-07-14 03:09:35,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:09:36,161 INFO L225 Difference]: With dead ends: 185273 [2022-07-14 03:09:36,161 INFO L226 Difference]: Without dead ends: 110334 [2022-07-14 03:09:36,382 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 [2022-07-14 03:09:36,382 INFO L413 NwaCegarLoop]: 8275 mSDtfsCounter, 4299 mSDsluCounter, 7237 mSDsCounter, 0 mSdLazyCounter, 3042 mSolverCounterSat, 1316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 15512 SdHoareTripleChecker+Invalid, 4358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1316 IncrementalHoareTripleChecker+Valid, 3042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-14 03:09:36,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4953 Valid, 15512 Invalid, 4358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1316 Valid, 3042 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-14 03:09:36,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110334 states. [2022-07-14 03:09:39,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110334 to 82609. [2022-07-14 03:09:39,080 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) [2022-07-14 03:09:39,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82609 states to 82609 states and 117350 transitions. [2022-07-14 03:09:39,393 INFO L78 Accepts]: Start accepts. Automaton has 82609 states and 117350 transitions. Word has length 331 [2022-07-14 03:09:39,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:09:39,394 INFO L495 AbstractCegarLoop]: Abstraction has 82609 states and 117350 transitions. [2022-07-14 03:09:39,395 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) [2022-07-14 03:09:39,395 INFO L276 IsEmpty]: Start isEmpty. Operand 82609 states and 117350 transitions. [2022-07-14 03:09:39,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-07-14 03:09:39,475 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:09:39,475 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] [2022-07-14 03:09:39,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 03:09:39,476 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] === [2022-07-14 03:09:39,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:09:39,476 INFO L85 PathProgramCache]: Analyzing trace with hash -986514726, now seen corresponding path program 1 times [2022-07-14 03:09:39,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:09:39,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752875094] [2022-07-14 03:09:39,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:09:39,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:09:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:39,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:09:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:39,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:39,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:09:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:39,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:39,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:09:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:39,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:39,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:09:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:39,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:39,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:09:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:39,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:39,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:09:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:39,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:39,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:09:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:39,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:39,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:09:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:39,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:39,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:09:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:39,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:39,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 03:09:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 03:09:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-14 03:09:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-14 03:09:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-14 03:09:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:40,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-14 03:09:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-14 03:09:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 03:09:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 03:09:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-14 03:09:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-14 03:09:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 03:09:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-14 03:09:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-14 03:09:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-14 03:09:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-14 03:09:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-14 03:09:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-14 03:09:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 03:09:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 03:09:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2022-07-14 03:09:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:40,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1584 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2022-07-14 03:09:40,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:09:40,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752875094] [2022-07-14 03:09:40,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752875094] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:09:40,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:09:40,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:09:40,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018913475] [2022-07-14 03:09:40,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:09:40,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 03:09:40,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:09:40,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 03:09:40,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 03:09:40,153 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) [2022-07-14 03:09:47,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:09:47,034 INFO L93 Difference]: Finished difference Result 212107 states and 302527 transitions. [2022-07-14 03:09:47,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:09:47,035 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 [2022-07-14 03:09:47,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:09:47,936 INFO L225 Difference]: With dead ends: 212107 [2022-07-14 03:09:47,936 INFO L226 Difference]: Without dead ends: 131289 [2022-07-14 03:09:48,182 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 [2022-07-14 03:09:48,182 INFO L413 NwaCegarLoop]: 8322 mSDtfsCounter, 4293 mSDsluCounter, 7253 mSDsCounter, 0 mSdLazyCounter, 3043 mSolverCounterSat, 1302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4951 SdHoareTripleChecker+Valid, 15575 SdHoareTripleChecker+Invalid, 4345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1302 IncrementalHoareTripleChecker+Valid, 3043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-14 03:09:48,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4951 Valid, 15575 Invalid, 4345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1302 Valid, 3043 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-14 03:09:48,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131289 states. [2022-07-14 03:09:51,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131289 to 130144. [2022-07-14 03:09:52,043 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) [2022-07-14 03:09:52,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130144 states to 130144 states and 185264 transitions. [2022-07-14 03:09:52,897 INFO L78 Accepts]: Start accepts. Automaton has 130144 states and 185264 transitions. Word has length 331 [2022-07-14 03:09:52,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 03:09:52,898 INFO L495 AbstractCegarLoop]: Abstraction has 130144 states and 185264 transitions. [2022-07-14 03:09:52,898 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) [2022-07-14 03:09:52,899 INFO L276 IsEmpty]: Start isEmpty. Operand 130144 states and 185264 transitions. [2022-07-14 03:09:53,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-07-14 03:09:53,011 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 03:09:53,011 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] [2022-07-14 03:09:53,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 03:09:53,012 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] === [2022-07-14 03:09:53,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 03:09:53,013 INFO L85 PathProgramCache]: Analyzing trace with hash 849579992, now seen corresponding path program 1 times [2022-07-14 03:09:53,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 03:09:53,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093530569] [2022-07-14 03:09:53,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 03:09:53,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 03:09:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 03:09:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 03:09:53,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:53,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 03:09:53,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 03:09:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 03:09:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 03:09:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 03:09:53,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 03:09:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 03:09:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 03:09:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 03:09:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-14 03:09:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-14 03:09:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-14 03:09:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-14 03:09:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-14 03:09:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 03:09:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 03:09:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-14 03:09:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-14 03:09:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 03:09:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-14 03:09:53,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:53,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-14 03:09:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-14 03:09:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-14 03:09:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-07-14 03:09:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-14 03:09:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-14 03:09:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-14 03:09:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-14 03:09:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 03:09:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 03:09:53,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 03:09:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-14 03:09:53,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 03:09:53,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1765 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1737 trivial. 0 not checked. [2022-07-14 03:09:53,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 03:09:53,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093530569] [2022-07-14 03:09:53,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093530569] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 03:09:53,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 03:09:53,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 03:09:53,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257168142] [2022-07-14 03:09:53,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 03:09:53,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 03:09:53,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 03:09:53,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 03:09:53,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 03:09:53,571 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) [2022-07-14 03:10:02,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 03:10:02,354 INFO L93 Difference]: Finished difference Result 307501 states and 439135 transitions. [2022-07-14 03:10:02,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 03:10:02,355 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 [2022-07-14 03:10:02,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 03:10:03,523 INFO L225 Difference]: With dead ends: 307501 [2022-07-14 03:10:03,523 INFO L226 Difference]: Without dead ends: 171726 [2022-07-14 03:10:03,867 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 [2022-07-14 03:10:03,868 INFO L413 NwaCegarLoop]: 8382 mSDtfsCounter, 4281 mSDsluCounter, 7298 mSDsCounter, 0 mSdLazyCounter, 3038 mSolverCounterSat, 1287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4935 SdHoareTripleChecker+Valid, 15680 SdHoareTripleChecker+Invalid, 4325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1287 IncrementalHoareTripleChecker+Valid, 3038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-14 03:10:03,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4935 Valid, 15680 Invalid, 4325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1287 Valid, 3038 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-14 03:10:03,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171726 states.