./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec0_product09.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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/product-lines/email_spec0_product09.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b43506942a12950209750f07d771d1d388e9661c8c19f0364d898e10e246352 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 00:41:46,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 00:41:46,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 00:41:46,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 00:41:46,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 00:41:46,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 00:41:46,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 00:41:46,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 00:41:46,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 00:41:46,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 00:41:46,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 00:41:46,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 00:41:46,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 00:41:46,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 00:41:46,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 00:41:46,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 00:41:46,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 00:41:46,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 00:41:46,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 00:41:46,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 00:41:46,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 00:41:46,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 00:41:46,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 00:41:46,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 00:41:46,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 00:41:46,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 00:41:46,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 00:41:46,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 00:41:46,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 00:41:46,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 00:41:46,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 00:41:46,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 00:41:46,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 00:41:46,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 00:41:46,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 00:41:46,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 00:41:46,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 00:41:46,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 00:41:46,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 00:41:46,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 00:41:46,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 00:41:46,804 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-28 00:41:46,820 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 00:41:46,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 00:41:46,822 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 00:41:46,822 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 00:41:46,823 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 00:41:46,823 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 00:41:46,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 00:41:46,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 00:41:46,824 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 00:41:46,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 00:41:46,825 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 00:41:46,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 00:41:46,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 00:41:46,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 00:41:46,825 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 00:41:46,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 00:41:46,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 00:41:46,826 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 00:41:46,826 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 00:41:46,826 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 00:41:46,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 00:41:46,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 00:41:46,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 00:41:46,827 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 00:41:46,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 00:41:46,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 00:41:46,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 00:41:46,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 00:41:46,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 00:41:46,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 00:41:46,832 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 00:41:46,832 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 00:41:46,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 00:41:46,832 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b43506942a12950209750f07d771d1d388e9661c8c19f0364d898e10e246352 [2021-12-28 00:41:47,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 00:41:47,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 00:41:47,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 00:41:47,112 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 00:41:47,112 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 00:41:47,113 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec0_product09.cil.c [2021-12-28 00:41:47,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae55e3ebd/fecd80c23a744d9bb0b068b0177d32f4/FLAG91e543356 [2021-12-28 00:41:47,628 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 00:41:47,628 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product09.cil.c [2021-12-28 00:41:47,650 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae55e3ebd/fecd80c23a744d9bb0b068b0177d32f4/FLAG91e543356 [2021-12-28 00:41:48,138 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae55e3ebd/fecd80c23a744d9bb0b068b0177d32f4 [2021-12-28 00:41:48,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 00:41:48,141 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 00:41:48,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 00:41:48,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 00:41:48,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 00:41:48,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 12:41:48" (1/1) ... [2021-12-28 00:41:48,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f78fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:41:48, skipping insertion in model container [2021-12-28 00:41:48,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 12:41:48" (1/1) ... [2021-12-28 00:41:48,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 00:41:48,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 00:41:48,494 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/product-lines/email_spec0_product09.cil.c[57372,57385] [2021-12-28 00:41:48,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 00:41:48,504 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 00:41:48,599 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/product-lines/email_spec0_product09.cil.c[57372,57385] [2021-12-28 00:41:48,609 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 00:41:48,631 INFO L208 MainTranslator]: Completed translation [2021-12-28 00:41:48,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:41:48 WrapperNode [2021-12-28 00:41:48,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 00:41:48,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 00:41:48,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 00:41:48,633 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 00:41:48,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:41:48" (1/1) ... [2021-12-28 00:41:48,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:41:48" (1/1) ... [2021-12-28 00:41:48,709 INFO L137 Inliner]: procedures = 110, calls = 144, calls flagged for inlining = 38, calls inlined = 33, statements flattened = 658 [2021-12-28 00:41:48,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 00:41:48,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 00:41:48,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 00:41:48,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 00:41:48,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:41:48" (1/1) ... [2021-12-28 00:41:48,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:41:48" (1/1) ... [2021-12-28 00:41:48,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:41:48" (1/1) ... [2021-12-28 00:41:48,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:41:48" (1/1) ... [2021-12-28 00:41:48,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:41:48" (1/1) ... [2021-12-28 00:41:48,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:41:48" (1/1) ... [2021-12-28 00:41:48,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:41:48" (1/1) ... [2021-12-28 00:41:48,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 00:41:48,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 00:41:48,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 00:41:48,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 00:41:48,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:41:48" (1/1) ... [2021-12-28 00:41:48,770 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 00:41:48,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:41:48,802 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) [2021-12-28 00:41:48,812 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 [2021-12-28 00:41:48,838 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Base [2021-12-28 00:41:48,838 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Base [2021-12-28 00:41:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2021-12-28 00:41:48,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2021-12-28 00:41:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2021-12-28 00:41:48,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2021-12-28 00:41:48,839 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2021-12-28 00:41:48,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2021-12-28 00:41:48,842 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2021-12-28 00:41:48,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2021-12-28 00:41:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2021-12-28 00:41:48,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2021-12-28 00:41:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-28 00:41:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2021-12-28 00:41:48,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2021-12-28 00:41:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 00:41:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2021-12-28 00:41:48,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2021-12-28 00:41:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2021-12-28 00:41:48,844 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2021-12-28 00:41:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2021-12-28 00:41:48,844 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2021-12-28 00:41:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2021-12-28 00:41:48,844 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2021-12-28 00:41:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 00:41:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2021-12-28 00:41:48,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2021-12-28 00:41:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 00:41:48,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 00:41:49,017 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 00:41:49,019 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 00:41:49,388 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 00:41:49,393 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 00:41:49,393 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 00:41:49,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 12:41:49 BoogieIcfgContainer [2021-12-28 00:41:49,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 00:41:49,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 00:41:49,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 00:41:49,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 00:41:49,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 12:41:48" (1/3) ... [2021-12-28 00:41:49,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c34c487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 12:41:49, skipping insertion in model container [2021-12-28 00:41:49,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 12:41:48" (2/3) ... [2021-12-28 00:41:49,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c34c487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 12:41:49, skipping insertion in model container [2021-12-28 00:41:49,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 12:41:49" (3/3) ... [2021-12-28 00:41:49,402 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec0_product09.cil.c [2021-12-28 00:41:49,408 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 00:41:49,408 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 00:41:49,447 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 00:41:49,451 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 00:41:49,451 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 00:41:49,464 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 169 states have (on average 1.5621301775147929) internal successors, (264), 172 states have internal predecessors, (264), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2021-12-28 00:41:49,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-28 00:41:49,471 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:41:49,472 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-28 00:41:49,472 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:41:49,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:41:49,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1774813752, now seen corresponding path program 1 times [2021-12-28 00:41:49,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:41:49,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221257841] [2021-12-28 00:41:49,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:41:49,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:41:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:49,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:41:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:49,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:41:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:49,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:41:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:49,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-28 00:41:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:49,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 00:41:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:49,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 00:41:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:49,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 00:41:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:49,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-28 00:41:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:49,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:41:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:49,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:41:49,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:49,783 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-28 00:41:49,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:41:49,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221257841] [2021-12-28 00:41:49,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221257841] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:41:49,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981102115] [2021-12-28 00:41:49,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:41:49,785 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:41:49,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:41:49,786 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:41:49,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 00:41:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:50,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-28 00:41:50,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:41:50,220 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-28 00:41:50,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:41:50,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981102115] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:41:50,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:41:50,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2021-12-28 00:41:50,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996135059] [2021-12-28 00:41:50,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:41:50,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-28 00:41:50,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:41:50,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-28 00:41:50,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-28 00:41:50,245 INFO L87 Difference]: Start difference. First operand has 209 states, 169 states have (on average 1.5621301775147929) internal successors, (264), 172 states have internal predecessors, (264), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:41:50,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:41:50,276 INFO L93 Difference]: Finished difference Result 329 states and 487 transitions. [2021-12-28 00:41:50,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-28 00:41:50,278 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 84 [2021-12-28 00:41:50,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:41:50,286 INFO L225 Difference]: With dead ends: 329 [2021-12-28 00:41:50,287 INFO L226 Difference]: Without dead ends: 202 [2021-12-28 00:41:50,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-28 00:41:50,292 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:41:50,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:41:50,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-12-28 00:41:50,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2021-12-28 00:41:50,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 163 states have (on average 1.5521472392638036) internal successors, (253), 165 states have internal predecessors, (253), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2021-12-28 00:41:50,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 304 transitions. [2021-12-28 00:41:50,336 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 304 transitions. Word has length 84 [2021-12-28 00:41:50,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:41:50,337 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 304 transitions. [2021-12-28 00:41:50,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:41:50,338 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 304 transitions. [2021-12-28 00:41:50,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-28 00:41:50,341 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:41:50,341 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-28 00:41:50,358 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-28 00:41:50,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-28 00:41:50,554 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:41:50,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:41:50,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1993537687, now seen corresponding path program 1 times [2021-12-28 00:41:50,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:41:50,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055329645] [2021-12-28 00:41:50,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:41:50,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:41:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:50,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:41:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:50,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:41:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:50,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:41:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:50,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-28 00:41:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:50,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 00:41:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:50,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 00:41:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:50,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-28 00:41:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:50,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:41:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:50,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:41:50,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:50,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:41:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:50,719 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-28 00:41:50,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:41:50,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055329645] [2021-12-28 00:41:50,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055329645] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:41:50,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333273185] [2021-12-28 00:41:50,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:41:50,721 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:41:50,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:41:50,722 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:41:50,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 00:41:50,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:50,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 875 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-28 00:41:50,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:41:51,029 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-28 00:41:51,029 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:41:51,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333273185] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:41:51,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:41:51,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-12-28 00:41:51,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157869027] [2021-12-28 00:41:51,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:41:51,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 00:41:51,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:41:51,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 00:41:51,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:41:51,032 INFO L87 Difference]: Start difference. First operand 202 states and 304 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:41:51,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:41:51,071 INFO L93 Difference]: Finished difference Result 319 states and 465 transitions. [2021-12-28 00:41:51,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 00:41:51,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 85 [2021-12-28 00:41:51,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:41:51,074 INFO L225 Difference]: With dead ends: 319 [2021-12-28 00:41:51,074 INFO L226 Difference]: Without dead ends: 205 [2021-12-28 00:41:51,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-28 00:41:51,076 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 1 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:41:51,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 602 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:41:51,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-12-28 00:41:51,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 204. [2021-12-28 00:41:51,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 165 states have (on average 1.5454545454545454) internal successors, (255), 167 states have internal predecessors, (255), 26 states have call successors, (26), 12 states have call predecessors, (26), 12 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2021-12-28 00:41:51,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 306 transitions. [2021-12-28 00:41:51,088 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 306 transitions. Word has length 85 [2021-12-28 00:41:51,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:41:51,089 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 306 transitions. [2021-12-28 00:41:51,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:41:51,089 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 306 transitions. [2021-12-28 00:41:51,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-28 00:41:51,092 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:41:51,092 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-28 00:41:51,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-28 00:41:51,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-28 00:41:51,310 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:41:51,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:41:51,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1008731173, now seen corresponding path program 1 times [2021-12-28 00:41:51,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:41:51,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819990853] [2021-12-28 00:41:51,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:41:51,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:41:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:51,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:41:51,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:51,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:41:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:51,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 00:41:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:51,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 00:41:51,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:51,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-28 00:41:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:51,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 00:41:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:51,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-28 00:41:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:51,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 00:41:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:51,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:41:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:51,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:41:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:51,412 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-28 00:41:51,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:41:51,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819990853] [2021-12-28 00:41:51,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819990853] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:41:51,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448339901] [2021-12-28 00:41:51,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:41:51,413 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:41:51,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:41:51,414 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:41:51,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 00:41:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:51,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-28 00:41:51,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:41:51,772 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-28 00:41:51,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:41:51,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448339901] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:41:51,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:41:51,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2021-12-28 00:41:51,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792621111] [2021-12-28 00:41:51,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:41:51,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 00:41:51,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:41:51,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 00:41:51,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-28 00:41:51,780 INFO L87 Difference]: Start difference. First operand 204 states and 306 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-28 00:41:51,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:41:51,822 INFO L93 Difference]: Finished difference Result 401 states and 605 transitions. [2021-12-28 00:41:51,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 00:41:51,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 90 [2021-12-28 00:41:51,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:41:51,825 INFO L225 Difference]: With dead ends: 401 [2021-12-28 00:41:51,825 INFO L226 Difference]: Without dead ends: 206 [2021-12-28 00:41:51,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-12-28 00:41:51,826 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 100 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:41:51,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 1074 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 00:41:51,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-12-28 00:41:51,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2021-12-28 00:41:51,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 166 states have (on average 1.5421686746987953) internal successors, (256), 169 states have internal predecessors, (256), 26 states have call successors, (26), 12 states have call predecessors, (26), 13 states have return successors, (27), 24 states have call predecessors, (27), 25 states have call successors, (27) [2021-12-28 00:41:51,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 309 transitions. [2021-12-28 00:41:51,838 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 309 transitions. Word has length 90 [2021-12-28 00:41:51,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:41:51,838 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 309 transitions. [2021-12-28 00:41:51,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-28 00:41:51,838 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 309 transitions. [2021-12-28 00:41:51,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-28 00:41:51,840 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:41:51,841 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:41:51,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-28 00:41:52,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:41:52,060 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:41:52,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:41:52,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1416843367, now seen corresponding path program 1 times [2021-12-28 00:41:52,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:41:52,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445886289] [2021-12-28 00:41:52,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:41:52,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:41:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:52,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:41:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:52,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:41:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:52,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 00:41:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:52,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 00:41:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:52,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 00:41:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:52,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 00:41:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:52,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:41:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:52,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 00:41:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:52,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:41:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:52,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:41:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:52,163 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-28 00:41:52,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:41:52,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445886289] [2021-12-28 00:41:52,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445886289] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:41:52,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:41:52,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 00:41:52,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657903559] [2021-12-28 00:41:52,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:41:52,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 00:41:52,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:41:52,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 00:41:52,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-28 00:41:52,166 INFO L87 Difference]: Start difference. First operand 206 states and 309 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-28 00:41:53,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:41:53,016 INFO L93 Difference]: Finished difference Result 517 states and 796 transitions. [2021-12-28 00:41:53,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-28 00:41:53,016 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 91 [2021-12-28 00:41:53,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:41:53,019 INFO L225 Difference]: With dead ends: 517 [2021-12-28 00:41:53,019 INFO L226 Difference]: Without dead ends: 330 [2021-12-28 00:41:53,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-12-28 00:41:53,020 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 558 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:41:53,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [573 Valid, 900 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 00:41:53,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-12-28 00:41:53,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 206. [2021-12-28 00:41:53,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 166 states have (on average 1.5421686746987953) internal successors, (256), 169 states have internal predecessors, (256), 26 states have call successors, (26), 12 states have call predecessors, (26), 13 states have return successors, (26), 24 states have call predecessors, (26), 25 states have call successors, (26) [2021-12-28 00:41:53,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 308 transitions. [2021-12-28 00:41:53,037 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 308 transitions. Word has length 91 [2021-12-28 00:41:53,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:41:53,037 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 308 transitions. [2021-12-28 00:41:53,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-28 00:41:53,038 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 308 transitions. [2021-12-28 00:41:53,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-28 00:41:53,040 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:41:53,040 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:41:53,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 00:41:53,040 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:41:53,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:41:53,041 INFO L85 PathProgramCache]: Analyzing trace with hash -142239273, now seen corresponding path program 2 times [2021-12-28 00:41:53,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:41:53,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252650199] [2021-12-28 00:41:53,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:41:53,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:41:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:53,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:41:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:53,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:41:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:53,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 00:41:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:53,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-28 00:41:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:53,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 00:41:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:53,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-28 00:41:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:53,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:41:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:53,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 00:41:53,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:53,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 00:41:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:53,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 00:41:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:53,135 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-28 00:41:53,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:41:53,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252650199] [2021-12-28 00:41:53,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252650199] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:41:53,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:41:53,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 00:41:53,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240240058] [2021-12-28 00:41:53,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:41:53,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 00:41:53,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:41:53,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 00:41:53,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-28 00:41:53,138 INFO L87 Difference]: Start difference. First operand 206 states and 308 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-28 00:41:53,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:41:53,948 INFO L93 Difference]: Finished difference Result 519 states and 799 transitions. [2021-12-28 00:41:53,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-28 00:41:53,948 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 92 [2021-12-28 00:41:53,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:41:53,950 INFO L225 Difference]: With dead ends: 519 [2021-12-28 00:41:53,950 INFO L226 Difference]: Without dead ends: 332 [2021-12-28 00:41:53,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-12-28 00:41:53,951 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 554 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 1595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-28 00:41:53,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [570 Valid, 900 Invalid, 1595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-28 00:41:53,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2021-12-28 00:41:53,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 208. [2021-12-28 00:41:53,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 167 states have (on average 1.5389221556886228) internal successors, (257), 171 states have internal predecessors, (257), 26 states have call successors, (26), 12 states have call predecessors, (26), 14 states have return successors, (28), 24 states have call predecessors, (28), 25 states have call successors, (28) [2021-12-28 00:41:53,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 311 transitions. [2021-12-28 00:41:53,963 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 311 transitions. Word has length 92 [2021-12-28 00:41:53,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:41:53,964 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 311 transitions. [2021-12-28 00:41:53,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-28 00:41:53,964 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 311 transitions. [2021-12-28 00:41:53,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-28 00:41:53,965 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:41:53,965 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:41:53,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 00:41:53,965 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:41:53,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:41:53,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1191959156, now seen corresponding path program 1 times [2021-12-28 00:41:53,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:41:53,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012490301] [2021-12-28 00:41:53,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:41:53,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:41:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:53,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:41:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:54,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:41:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:54,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 00:41:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:54,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 00:41:54,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:54,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 00:41:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:54,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 00:41:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:54,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 00:41:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:54,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 00:41:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:54,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 00:41:54,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:54,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 00:41:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:54,028 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-28 00:41:54,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:41:54,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012490301] [2021-12-28 00:41:54,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012490301] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:41:54,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578360473] [2021-12-28 00:41:54,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:41:54,029 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:41:54,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:41:54,030 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:41:54,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-28 00:41:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:54,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-28 00:41:54,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:41:54,313 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-28 00:41:54,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 00:41:54,446 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-28 00:41:54,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578360473] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 00:41:54,447 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 00:41:54,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2021-12-28 00:41:54,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110290724] [2021-12-28 00:41:54,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 00:41:54,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-28 00:41:54,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:41:54,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-28 00:41:54,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:41:54,449 INFO L87 Difference]: Start difference. First operand 208 states and 311 transitions. Second operand has 10 states, 10 states have (on average 8.8) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 00:41:55,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:41:55,093 INFO L93 Difference]: Finished difference Result 614 states and 974 transitions. [2021-12-28 00:41:55,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 00:41:55,094 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 93 [2021-12-28 00:41:55,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:41:55,096 INFO L225 Difference]: With dead ends: 614 [2021-12-28 00:41:55,096 INFO L226 Difference]: Without dead ends: 500 [2021-12-28 00:41:55,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-12-28 00:41:55,097 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 943 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-28 00:41:55,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [967 Valid, 1081 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-28 00:41:55,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2021-12-28 00:41:55,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 352. [2021-12-28 00:41:55,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 302 states have (on average 1.6655629139072847) internal successors, (503), 306 states have internal predecessors, (503), 35 states have call successors, (35), 12 states have call predecessors, (35), 14 states have return successors, (37), 33 states have call predecessors, (37), 34 states have call successors, (37) [2021-12-28 00:41:55,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 575 transitions. [2021-12-28 00:41:55,112 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 575 transitions. Word has length 93 [2021-12-28 00:41:55,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:41:55,113 INFO L470 AbstractCegarLoop]: Abstraction has 352 states and 575 transitions. [2021-12-28 00:41:55,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 7 states have internal predecessors, (88), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-28 00:41:55,113 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 575 transitions. [2021-12-28 00:41:55,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-28 00:41:55,114 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:41:55,114 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:41:55,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-28 00:41:55,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:41:55,333 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:41:55,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:41:55,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1719121859, now seen corresponding path program 1 times [2021-12-28 00:41:55,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:41:55,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314340854] [2021-12-28 00:41:55,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:41:55,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:41:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:55,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:41:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:55,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:41:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:55,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 00:41:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:55,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-28 00:41:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:55,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 00:41:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:55,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 00:41:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:55,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 00:41:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:55,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:41:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:55,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 00:41:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:55,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 00:41:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:55,408 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-28 00:41:55,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:41:55,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314340854] [2021-12-28 00:41:55,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314340854] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:41:55,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:41:55,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 00:41:55,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611382446] [2021-12-28 00:41:55,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:41:55,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 00:41:55,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:41:55,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 00:41:55,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 00:41:55,410 INFO L87 Difference]: Start difference. First operand 352 states and 575 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:41:56,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:41:56,027 INFO L93 Difference]: Finished difference Result 951 states and 1590 transitions. [2021-12-28 00:41:56,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 00:41:56,027 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 100 [2021-12-28 00:41:56,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:41:56,031 INFO L225 Difference]: With dead ends: 951 [2021-12-28 00:41:56,031 INFO L226 Difference]: Without dead ends: 627 [2021-12-28 00:41:56,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:41:56,032 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 550 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-28 00:41:56,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [565 Valid, 797 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-28 00:41:56,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2021-12-28 00:41:56,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 495. [2021-12-28 00:41:56,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 436 states have (on average 1.701834862385321) internal successors, (742), 440 states have internal predecessors, (742), 44 states have call successors, (44), 12 states have call predecessors, (44), 14 states have return successors, (46), 42 states have call predecessors, (46), 43 states have call successors, (46) [2021-12-28 00:41:56,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 832 transitions. [2021-12-28 00:41:56,057 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 832 transitions. Word has length 100 [2021-12-28 00:41:56,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:41:56,058 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 832 transitions. [2021-12-28 00:41:56,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:41:56,058 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 832 transitions. [2021-12-28 00:41:56,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-28 00:41:56,059 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:41:56,060 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:41:56,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 00:41:56,060 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:41:56,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:41:56,060 INFO L85 PathProgramCache]: Analyzing trace with hash 800915596, now seen corresponding path program 1 times [2021-12-28 00:41:56,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:41:56,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693172783] [2021-12-28 00:41:56,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:41:56,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:41:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:41:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:41:56,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 00:41:56,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-28 00:41:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-28 00:41:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-28 00:41:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 00:41:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:41:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-28 00:41:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 00:41:56,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,129 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-28 00:41:56,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:41:56,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693172783] [2021-12-28 00:41:56,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693172783] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:41:56,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:41:56,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 00:41:56,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808210926] [2021-12-28 00:41:56,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:41:56,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 00:41:56,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:41:56,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 00:41:56,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 00:41:56,131 INFO L87 Difference]: Start difference. First operand 495 states and 832 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:41:56,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:41:56,733 INFO L93 Difference]: Finished difference Result 1323 states and 2260 transitions. [2021-12-28 00:41:56,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 00:41:56,734 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2021-12-28 00:41:56,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:41:56,738 INFO L225 Difference]: With dead ends: 1323 [2021-12-28 00:41:56,738 INFO L226 Difference]: Without dead ends: 864 [2021-12-28 00:41:56,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:41:56,740 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 547 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-28 00:41:56,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [560 Valid, 796 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-28 00:41:56,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2021-12-28 00:41:56,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 732. [2021-12-28 00:41:56,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 658 states have (on average 1.7234042553191489) internal successors, (1134), 662 states have internal predecessors, (1134), 59 states have call successors, (59), 12 states have call predecessors, (59), 14 states have return successors, (61), 57 states have call predecessors, (61), 58 states have call successors, (61) [2021-12-28 00:41:56,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1254 transitions. [2021-12-28 00:41:56,764 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1254 transitions. Word has length 101 [2021-12-28 00:41:56,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:41:56,764 INFO L470 AbstractCegarLoop]: Abstraction has 732 states and 1254 transitions. [2021-12-28 00:41:56,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:41:56,764 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1254 transitions. [2021-12-28 00:41:56,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-28 00:41:56,766 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:41:56,766 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:41:56,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 00:41:56,767 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:41:56,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:41:56,767 INFO L85 PathProgramCache]: Analyzing trace with hash 437570885, now seen corresponding path program 1 times [2021-12-28 00:41:56,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:41:56,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633543938] [2021-12-28 00:41:56,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:41:56,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:41:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:41:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:41:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 00:41:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 00:41:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 00:41:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:41:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-28 00:41:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:41:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 00:41:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 00:41:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:56,827 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-28 00:41:56,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:41:56,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633543938] [2021-12-28 00:41:56,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633543938] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:41:56,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:41:56,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 00:41:56,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618009399] [2021-12-28 00:41:56,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:41:56,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 00:41:56,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:41:56,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 00:41:56,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 00:41:56,835 INFO L87 Difference]: Start difference. First operand 732 states and 1254 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:41:57,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:41:57,432 INFO L93 Difference]: Finished difference Result 1919 states and 3324 transitions. [2021-12-28 00:41:57,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 00:41:57,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 102 [2021-12-28 00:41:57,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:41:57,437 INFO L225 Difference]: With dead ends: 1919 [2021-12-28 00:41:57,437 INFO L226 Difference]: Without dead ends: 1242 [2021-12-28 00:41:57,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:41:57,440 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 546 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-28 00:41:57,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [561 Valid, 814 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-28 00:41:57,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2021-12-28 00:41:57,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1110. [2021-12-28 00:41:57,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 1012 states have (on average 1.7312252964426877) internal successors, (1752), 1016 states have internal predecessors, (1752), 83 states have call successors, (83), 12 states have call predecessors, (83), 14 states have return successors, (85), 81 states have call predecessors, (85), 82 states have call successors, (85) [2021-12-28 00:41:57,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1920 transitions. [2021-12-28 00:41:57,476 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1920 transitions. Word has length 102 [2021-12-28 00:41:57,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:41:57,476 INFO L470 AbstractCegarLoop]: Abstraction has 1110 states and 1920 transitions. [2021-12-28 00:41:57,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:41:57,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1920 transitions. [2021-12-28 00:41:57,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-28 00:41:57,480 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:41:57,480 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:41:57,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 00:41:57,481 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:41:57,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:41:57,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1191147766, now seen corresponding path program 1 times [2021-12-28 00:41:57,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:41:57,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340219667] [2021-12-28 00:41:57,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:41:57,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:41:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:57,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:41:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:57,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:41:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:57,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 00:41:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:57,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-28 00:41:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:57,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 00:41:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:57,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 00:41:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:57,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 00:41:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:57,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 00:41:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:57,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 00:41:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:57,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 00:41:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:57,553 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-28 00:41:57,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:41:57,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340219667] [2021-12-28 00:41:57,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340219667] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:41:57,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:41:57,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 00:41:57,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834166572] [2021-12-28 00:41:57,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:41:57,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 00:41:57,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:41:57,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 00:41:57,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 00:41:57,555 INFO L87 Difference]: Start difference. First operand 1110 states and 1920 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:41:58,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:41:58,201 INFO L93 Difference]: Finished difference Result 2869 states and 5007 transitions. [2021-12-28 00:41:58,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 00:41:58,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 103 [2021-12-28 00:41:58,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:41:58,214 INFO L225 Difference]: With dead ends: 2869 [2021-12-28 00:41:58,214 INFO L226 Difference]: Without dead ends: 1852 [2021-12-28 00:41:58,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:41:58,217 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 542 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-28 00:41:58,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [557 Valid, 797 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-28 00:41:58,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2021-12-28 00:41:58,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1720. [2021-12-28 00:41:58,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1583 states have (on average 1.7308907138344916) internal successors, (2740), 1587 states have internal predecessors, (2740), 122 states have call successors, (122), 12 states have call predecessors, (122), 14 states have return successors, (124), 120 states have call predecessors, (124), 121 states have call successors, (124) [2021-12-28 00:41:58,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2986 transitions. [2021-12-28 00:41:58,285 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2986 transitions. Word has length 103 [2021-12-28 00:41:58,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:41:58,286 INFO L470 AbstractCegarLoop]: Abstraction has 1720 states and 2986 transitions. [2021-12-28 00:41:58,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:41:58,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2986 transitions. [2021-12-28 00:41:58,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-28 00:41:58,291 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:41:58,291 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:41:58,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-28 00:41:58,292 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:41:58,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:41:58,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1632128313, now seen corresponding path program 1 times [2021-12-28 00:41:58,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:41:58,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239545065] [2021-12-28 00:41:58,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:41:58,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:41:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:58,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:41:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:58,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:41:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:58,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 00:41:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:58,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 00:41:58,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:58,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 00:41:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:58,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 00:41:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:58,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 00:41:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:58,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 00:41:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:58,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 00:41:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:58,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 00:41:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:58,361 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-28 00:41:58,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:41:58,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239545065] [2021-12-28 00:41:58,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239545065] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:41:58,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:41:58,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 00:41:58,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299829334] [2021-12-28 00:41:58,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:41:58,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 00:41:58,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:41:58,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 00:41:58,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 00:41:58,363 INFO L87 Difference]: Start difference. First operand 1720 states and 2986 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:41:58,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:41:58,958 INFO L93 Difference]: Finished difference Result 4434 states and 7763 transitions. [2021-12-28 00:41:58,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 00:41:58,958 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 104 [2021-12-28 00:41:58,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:41:58,972 INFO L225 Difference]: With dead ends: 4434 [2021-12-28 00:41:58,973 INFO L226 Difference]: Without dead ends: 2872 [2021-12-28 00:41:58,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:41:58,976 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 542 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-28 00:41:58,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [556 Valid, 791 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-28 00:41:58,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2021-12-28 00:41:59,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 2740. [2021-12-28 00:41:59,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2740 states, 2537 states have (on average 1.7268427276310603) internal successors, (4381), 2541 states have internal predecessors, (4381), 188 states have call successors, (188), 12 states have call predecessors, (188), 14 states have return successors, (190), 186 states have call predecessors, (190), 187 states have call successors, (190) [2021-12-28 00:41:59,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2740 states to 2740 states and 4759 transitions. [2021-12-28 00:41:59,089 INFO L78 Accepts]: Start accepts. Automaton has 2740 states and 4759 transitions. Word has length 104 [2021-12-28 00:41:59,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:41:59,090 INFO L470 AbstractCegarLoop]: Abstraction has 2740 states and 4759 transitions. [2021-12-28 00:41:59,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:41:59,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2740 states and 4759 transitions. [2021-12-28 00:41:59,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-28 00:41:59,098 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:41:59,099 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:41:59,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-28 00:41:59,099 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:41:59,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:41:59,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1275080072, now seen corresponding path program 1 times [2021-12-28 00:41:59,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:41:59,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43310095] [2021-12-28 00:41:59,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:41:59,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:41:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:59,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:41:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:59,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:41:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:59,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 00:41:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:59,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 00:41:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:59,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-28 00:41:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:59,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-28 00:41:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:59,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-28 00:41:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:59,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:41:59,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:59,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-28 00:41:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:59,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 00:41:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:41:59,172 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-28 00:41:59,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:41:59,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43310095] [2021-12-28 00:41:59,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43310095] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:41:59,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:41:59,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 00:41:59,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158976604] [2021-12-28 00:41:59,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:41:59,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 00:41:59,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:41:59,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 00:41:59,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 00:41:59,175 INFO L87 Difference]: Start difference. First operand 2740 states and 4759 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:41:59,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:41:59,829 INFO L93 Difference]: Finished difference Result 6859 states and 12055 transitions. [2021-12-28 00:41:59,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 00:41:59,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 105 [2021-12-28 00:41:59,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:41:59,845 INFO L225 Difference]: With dead ends: 6859 [2021-12-28 00:41:59,845 INFO L226 Difference]: Without dead ends: 4457 [2021-12-28 00:41:59,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:41:59,850 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 540 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-28 00:41:59,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [555 Valid, 805 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-28 00:41:59,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4457 states. [2021-12-28 00:41:59,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4457 to 4325. [2021-12-28 00:41:59,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4325 states, 4005 states have (on average 1.7273408239700374) internal successors, (6918), 4009 states have internal predecessors, (6918), 305 states have call successors, (305), 12 states have call predecessors, (305), 14 states have return successors, (307), 303 states have call predecessors, (307), 304 states have call successors, (307) [2021-12-28 00:41:59,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 7530 transitions. [2021-12-28 00:41:59,991 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 7530 transitions. Word has length 105 [2021-12-28 00:41:59,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:41:59,991 INFO L470 AbstractCegarLoop]: Abstraction has 4325 states and 7530 transitions. [2021-12-28 00:41:59,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:41:59,991 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 7530 transitions. [2021-12-28 00:42:00,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-28 00:42:00,002 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:42:00,002 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:42:00,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-28 00:42:00,003 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:42:00,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:42:00,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1046251593, now seen corresponding path program 1 times [2021-12-28 00:42:00,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:42:00,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901616018] [2021-12-28 00:42:00,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:42:00,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:42:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:00,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:42:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:00,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:42:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:00,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 00:42:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:00,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-28 00:42:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:00,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 00:42:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:00,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-28 00:42:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:00,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 00:42:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:00,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 00:42:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:00,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 00:42:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:00,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:42:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:00,082 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-28 00:42:00,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:42:00,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901616018] [2021-12-28 00:42:00,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901616018] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:42:00,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:42:00,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 00:42:00,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268239685] [2021-12-28 00:42:00,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:42:00,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 00:42:00,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:42:00,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 00:42:00,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 00:42:00,085 INFO L87 Difference]: Start difference. First operand 4325 states and 7530 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:42:00,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:42:00,802 INFO L93 Difference]: Finished difference Result 11366 states and 19970 transitions. [2021-12-28 00:42:00,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 00:42:00,802 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 106 [2021-12-28 00:42:00,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:42:00,829 INFO L225 Difference]: With dead ends: 11366 [2021-12-28 00:42:00,829 INFO L226 Difference]: Without dead ends: 7522 [2021-12-28 00:42:00,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:42:00,838 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 538 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-28 00:42:00,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [553 Valid, 814 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-28 00:42:00,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7522 states. [2021-12-28 00:42:01,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7522 to 7390. [2021-12-28 00:42:01,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7390 states, 6854 states have (on average 1.7213306098628538) internal successors, (11798), 6858 states have internal predecessors, (11798), 521 states have call successors, (521), 12 states have call predecessors, (521), 14 states have return successors, (523), 519 states have call predecessors, (523), 520 states have call successors, (523) [2021-12-28 00:42:01,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7390 states to 7390 states and 12842 transitions. [2021-12-28 00:42:01,081 INFO L78 Accepts]: Start accepts. Automaton has 7390 states and 12842 transitions. Word has length 106 [2021-12-28 00:42:01,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:42:01,081 INFO L470 AbstractCegarLoop]: Abstraction has 7390 states and 12842 transitions. [2021-12-28 00:42:01,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:42:01,082 INFO L276 IsEmpty]: Start isEmpty. Operand 7390 states and 12842 transitions. [2021-12-28 00:42:01,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-28 00:42:01,100 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:42:01,100 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:42:01,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-28 00:42:01,101 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:42:01,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:42:01,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1300941798, now seen corresponding path program 1 times [2021-12-28 00:42:01,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:42:01,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381029462] [2021-12-28 00:42:01,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:42:01,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:42:01,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:01,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:42:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:01,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:42:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:01,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 00:42:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:01,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 00:42:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:01,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 00:42:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:01,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 00:42:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:01,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 00:42:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:01,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 00:42:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:01,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 00:42:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:01,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-28 00:42:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:01,170 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-28 00:42:01,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:42:01,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381029462] [2021-12-28 00:42:01,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381029462] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:42:01,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:42:01,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 00:42:01,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123822918] [2021-12-28 00:42:01,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:42:01,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 00:42:01,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:42:01,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 00:42:01,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 00:42:01,172 INFO L87 Difference]: Start difference. First operand 7390 states and 12842 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:42:01,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:42:01,937 INFO L93 Difference]: Finished difference Result 16936 states and 29417 transitions. [2021-12-28 00:42:01,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 00:42:01,937 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 107 [2021-12-28 00:42:01,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:42:01,976 INFO L225 Difference]: With dead ends: 16936 [2021-12-28 00:42:01,976 INFO L226 Difference]: Without dead ends: 10773 [2021-12-28 00:42:01,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:42:01,989 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 534 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-28 00:42:01,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [547 Valid, 767 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-28 00:42:01,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10773 states. [2021-12-28 00:42:02,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10773 to 10641. [2021-12-28 00:42:02,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10641 states, 10105 states have (on average 1.6966848095002474) internal successors, (17145), 10109 states have internal predecessors, (17145), 521 states have call successors, (521), 12 states have call predecessors, (521), 14 states have return successors, (523), 519 states have call predecessors, (523), 520 states have call successors, (523) [2021-12-28 00:42:02,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10641 states to 10641 states and 18189 transitions. [2021-12-28 00:42:02,308 INFO L78 Accepts]: Start accepts. Automaton has 10641 states and 18189 transitions. Word has length 107 [2021-12-28 00:42:02,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:42:02,308 INFO L470 AbstractCegarLoop]: Abstraction has 10641 states and 18189 transitions. [2021-12-28 00:42:02,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:42:02,308 INFO L276 IsEmpty]: Start isEmpty. Operand 10641 states and 18189 transitions. [2021-12-28 00:42:02,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-28 00:42:02,329 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:42:02,330 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 3, 3, 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] [2021-12-28 00:42:02,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-28 00:42:02,330 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:42:02,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:42:02,330 INFO L85 PathProgramCache]: Analyzing trace with hash 752921054, now seen corresponding path program 2 times [2021-12-28 00:42:02,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:42:02,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148414852] [2021-12-28 00:42:02,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:42:02,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:42:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:02,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:42:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:02,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:42:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:02,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 00:42:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:02,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 00:42:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:02,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 00:42:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:02,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 00:42:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:02,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:42:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:02,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:42:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:02,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 00:42:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:02,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-28 00:42:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:02,404 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-28 00:42:02,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:42:02,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148414852] [2021-12-28 00:42:02,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148414852] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:42:02,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:42:02,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 00:42:02,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61070952] [2021-12-28 00:42:02,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:42:02,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 00:42:02,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:42:02,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 00:42:02,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-28 00:42:02,406 INFO L87 Difference]: Start difference. First operand 10641 states and 18189 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:42:03,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:42:03,457 INFO L93 Difference]: Finished difference Result 19747 states and 33880 transitions. [2021-12-28 00:42:03,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-28 00:42:03,458 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 108 [2021-12-28 00:42:03,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:42:03,482 INFO L225 Difference]: With dead ends: 19747 [2021-12-28 00:42:03,482 INFO L226 Difference]: Without dead ends: 10773 [2021-12-28 00:42:03,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-12-28 00:42:03,500 INFO L933 BasicCegarLoop]: 486 mSDtfsCounter, 748 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 1409 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 1638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 1409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-28 00:42:03,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [759 Valid, 1143 Invalid, 1638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 1409 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-28 00:42:03,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10773 states. [2021-12-28 00:42:03,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10773 to 10641. [2021-12-28 00:42:03,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10641 states, 10105 states have (on average 1.683127164769916) internal successors, (17008), 10109 states have internal predecessors, (17008), 521 states have call successors, (521), 12 states have call predecessors, (521), 14 states have return successors, (523), 519 states have call predecessors, (523), 520 states have call successors, (523) [2021-12-28 00:42:03,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10641 states to 10641 states and 18052 transitions. [2021-12-28 00:42:03,927 INFO L78 Accepts]: Start accepts. Automaton has 10641 states and 18052 transitions. Word has length 108 [2021-12-28 00:42:03,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:42:03,927 INFO L470 AbstractCegarLoop]: Abstraction has 10641 states and 18052 transitions. [2021-12-28 00:42:03,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:42:03,928 INFO L276 IsEmpty]: Start isEmpty. Operand 10641 states and 18052 transitions. [2021-12-28 00:42:03,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-28 00:42:03,947 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:42:03,948 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:42:03,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-28 00:42:03,948 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:42:03,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:42:03,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1599377333, now seen corresponding path program 1 times [2021-12-28 00:42:03,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:42:03,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475474998] [2021-12-28 00:42:03,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:42:03,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:42:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:03,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:42:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:03,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:42:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:03,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 00:42:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:03,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-28 00:42:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:03,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 00:42:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:04,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-28 00:42:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:04,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 00:42:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:04,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 00:42:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:04,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 00:42:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:04,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-28 00:42:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:04,009 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-28 00:42:04,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:42:04,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475474998] [2021-12-28 00:42:04,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475474998] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:42:04,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:42:04,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 00:42:04,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022197873] [2021-12-28 00:42:04,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:42:04,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 00:42:04,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:42:04,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 00:42:04,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 00:42:04,011 INFO L87 Difference]: Start difference. First operand 10641 states and 18052 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:42:04,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:42:04,968 INFO L93 Difference]: Finished difference Result 28476 states and 48542 transitions. [2021-12-28 00:42:04,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 00:42:04,968 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 108 [2021-12-28 00:42:04,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:42:05,016 INFO L225 Difference]: With dead ends: 28476 [2021-12-28 00:42:05,016 INFO L226 Difference]: Without dead ends: 19350 [2021-12-28 00:42:05,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:42:05,038 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 534 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-28 00:42:05,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [550 Valid, 792 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-28 00:42:05,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19350 states. [2021-12-28 00:42:05,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19350 to 19218. [2021-12-28 00:42:05,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19218 states, 18271 states have (on average 1.6699140714793936) internal successors, (30511), 18275 states have internal predecessors, (30511), 932 states have call successors, (932), 12 states have call predecessors, (932), 14 states have return successors, (934), 930 states have call predecessors, (934), 931 states have call successors, (934) [2021-12-28 00:42:05,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19218 states to 19218 states and 32377 transitions. [2021-12-28 00:42:05,684 INFO L78 Accepts]: Start accepts. Automaton has 19218 states and 32377 transitions. Word has length 108 [2021-12-28 00:42:05,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:42:05,685 INFO L470 AbstractCegarLoop]: Abstraction has 19218 states and 32377 transitions. [2021-12-28 00:42:05,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:42:05,685 INFO L276 IsEmpty]: Start isEmpty. Operand 19218 states and 32377 transitions. [2021-12-28 00:42:05,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-28 00:42:05,810 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:42:05,810 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:42:05,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-28 00:42:05,810 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:42:05,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:42:05,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1953118816, now seen corresponding path program 1 times [2021-12-28 00:42:05,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:42:05,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222560885] [2021-12-28 00:42:05,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:42:05,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:42:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:05,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:42:05,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:05,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:42:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:05,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 00:42:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:05,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 00:42:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:05,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 00:42:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:05,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 00:42:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:05,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 00:42:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:05,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 00:42:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:05,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 00:42:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:05,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 00:42:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:05,895 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-28 00:42:05,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:42:05,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222560885] [2021-12-28 00:42:05,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222560885] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:42:05,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:42:05,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 00:42:05,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967224616] [2021-12-28 00:42:05,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:42:05,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 00:42:05,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:42:05,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 00:42:05,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 00:42:05,897 INFO L87 Difference]: Start difference. First operand 19218 states and 32377 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:42:07,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:42:07,119 INFO L93 Difference]: Finished difference Result 52998 states and 89549 transitions. [2021-12-28 00:42:07,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 00:42:07,120 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 109 [2021-12-28 00:42:07,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:42:07,212 INFO L225 Difference]: With dead ends: 52998 [2021-12-28 00:42:07,213 INFO L226 Difference]: Without dead ends: 35799 [2021-12-28 00:42:07,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:42:07,236 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 530 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-28 00:42:07,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [545 Valid, 820 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-28 00:42:07,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35799 states. [2021-12-28 00:42:08,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35799 to 35667. [2021-12-28 00:42:08,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35667 states, 33922 states have (on average 1.6542067095100526) internal successors, (56114), 33926 states have internal predecessors, (56114), 1730 states have call successors, (1730), 12 states have call predecessors, (1730), 14 states have return successors, (1732), 1728 states have call predecessors, (1732), 1729 states have call successors, (1732) [2021-12-28 00:42:08,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35667 states to 35667 states and 59576 transitions. [2021-12-28 00:42:08,551 INFO L78 Accepts]: Start accepts. Automaton has 35667 states and 59576 transitions. Word has length 109 [2021-12-28 00:42:08,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:42:08,551 INFO L470 AbstractCegarLoop]: Abstraction has 35667 states and 59576 transitions. [2021-12-28 00:42:08,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:42:08,552 INFO L276 IsEmpty]: Start isEmpty. Operand 35667 states and 59576 transitions. [2021-12-28 00:42:08,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-28 00:42:08,586 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:42:08,586 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:42:08,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-28 00:42:08,587 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:42:08,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:42:08,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1046204083, now seen corresponding path program 1 times [2021-12-28 00:42:08,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:42:08,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099256684] [2021-12-28 00:42:08,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:42:08,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:42:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:08,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:42:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:08,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:42:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:08,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 00:42:08,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:08,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-28 00:42:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:08,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-28 00:42:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:08,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 00:42:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:08,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 00:42:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:08,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 00:42:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:08,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-28 00:42:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:08,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 00:42:08,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:08,649 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-28 00:42:08,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:42:08,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099256684] [2021-12-28 00:42:08,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099256684] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:42:08,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:42:08,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 00:42:08,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388657149] [2021-12-28 00:42:08,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:42:08,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 00:42:08,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:42:08,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 00:42:08,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 00:42:08,651 INFO L87 Difference]: Start difference. First operand 35667 states and 59576 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:42:10,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:42:10,627 INFO L93 Difference]: Finished difference Result 67756 states and 113107 transitions. [2021-12-28 00:42:10,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 00:42:10,628 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 110 [2021-12-28 00:42:10,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:42:10,808 INFO L225 Difference]: With dead ends: 67756 [2021-12-28 00:42:10,808 INFO L226 Difference]: Without dead ends: 67642 [2021-12-28 00:42:10,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-28 00:42:10,827 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 528 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-28 00:42:10,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [543 Valid, 820 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-28 00:42:10,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67642 states. [2021-12-28 00:42:12,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67642 to 67510. [2021-12-28 00:42:12,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67510 states, 64196 states have (on average 1.6362857498909589) internal successors, (105043), 64200 states have internal predecessors, (105043), 3299 states have call successors, (3299), 12 states have call predecessors, (3299), 14 states have return successors, (3301), 3297 states have call predecessors, (3301), 3298 states have call successors, (3301) [2021-12-28 00:42:13,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67510 states to 67510 states and 111643 transitions. [2021-12-28 00:42:13,153 INFO L78 Accepts]: Start accepts. Automaton has 67510 states and 111643 transitions. Word has length 110 [2021-12-28 00:42:13,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:42:13,154 INFO L470 AbstractCegarLoop]: Abstraction has 67510 states and 111643 transitions. [2021-12-28 00:42:13,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:42:13,154 INFO L276 IsEmpty]: Start isEmpty. Operand 67510 states and 111643 transitions. [2021-12-28 00:42:13,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-28 00:42:13,191 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:42:13,192 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 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] [2021-12-28 00:42:13,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-28 00:42:13,192 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:42:13,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:42:13,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1765900778, now seen corresponding path program 1 times [2021-12-28 00:42:13,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:42:13,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863863752] [2021-12-28 00:42:13,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:42:13,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:42:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:13,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:42:13,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:13,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:42:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:13,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 00:42:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:13,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 00:42:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:13,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:42:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:13,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 00:42:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:13,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:42:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:13,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 00:42:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:13,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 00:42:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:13,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 00:42:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:13,252 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-28 00:42:13,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:42:13,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863863752] [2021-12-28 00:42:13,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863863752] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:42:13,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:42:13,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 00:42:13,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129986312] [2021-12-28 00:42:13,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:42:13,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 00:42:13,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:42:13,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 00:42:13,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-28 00:42:13,255 INFO L87 Difference]: Start difference. First operand 67510 states and 111643 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:42:15,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:42:15,869 INFO L93 Difference]: Finished difference Result 131923 states and 218520 transitions. [2021-12-28 00:42:15,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-28 00:42:15,869 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 111 [2021-12-28 00:42:15,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:42:16,040 INFO L225 Difference]: With dead ends: 131923 [2021-12-28 00:42:16,040 INFO L226 Difference]: Without dead ends: 67608 [2021-12-28 00:42:16,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-12-28 00:42:16,111 INFO L933 BasicCegarLoop]: 487 mSDtfsCounter, 739 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 1622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-28 00:42:16,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [748 Valid, 1162 Invalid, 1622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-28 00:42:16,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67608 states. [2021-12-28 00:42:18,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67608 to 67476. [2021-12-28 00:42:18,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67476 states, 64162 states have (on average 1.620336024438141) internal successors, (103964), 64166 states have internal predecessors, (103964), 3299 states have call successors, (3299), 12 states have call predecessors, (3299), 14 states have return successors, (3301), 3297 states have call predecessors, (3301), 3298 states have call successors, (3301) [2021-12-28 00:42:18,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67476 states to 67476 states and 110564 transitions. [2021-12-28 00:42:18,283 INFO L78 Accepts]: Start accepts. Automaton has 67476 states and 110564 transitions. Word has length 111 [2021-12-28 00:42:18,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:42:18,283 INFO L470 AbstractCegarLoop]: Abstraction has 67476 states and 110564 transitions. [2021-12-28 00:42:18,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:42:18,283 INFO L276 IsEmpty]: Start isEmpty. Operand 67476 states and 110564 transitions. [2021-12-28 00:42:18,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-28 00:42:18,325 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:42:18,325 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:42:18,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-28 00:42:18,326 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:42:18,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:42:18,326 INFO L85 PathProgramCache]: Analyzing trace with hash -414235298, now seen corresponding path program 1 times [2021-12-28 00:42:18,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:42:18,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617325764] [2021-12-28 00:42:18,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:42:18,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:42:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:18,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:42:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:18,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:42:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:18,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 00:42:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:18,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 00:42:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:18,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:42:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:18,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 00:42:18,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:18,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:42:18,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:18,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 00:42:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:18,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 00:42:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:18,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-28 00:42:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:18,756 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-28 00:42:18,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:42:18,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617325764] [2021-12-28 00:42:18,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617325764] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:42:18,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874953027] [2021-12-28 00:42:18,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:42:18,757 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:42:18,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:42:18,759 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:42:18,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-28 00:42:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:18,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-28 00:42:18,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:42:19,265 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-28 00:42:19,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:42:19,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874953027] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:42:19,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:42:19,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [18] total 28 [2021-12-28 00:42:19,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166811821] [2021-12-28 00:42:19,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:42:19,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 00:42:19,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:42:19,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 00:42:19,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-12-28 00:42:19,268 INFO L87 Difference]: Start difference. First operand 67476 states and 110564 transitions. Second operand has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 10 states have internal predecessors, (85), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2021-12-28 00:42:21,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:42:21,328 INFO L93 Difference]: Finished difference Result 67816 states and 111054 transitions. [2021-12-28 00:42:21,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-28 00:42:21,328 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 10 states have internal predecessors, (85), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) Word has length 111 [2021-12-28 00:42:21,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:42:21,610 INFO L225 Difference]: With dead ends: 67816 [2021-12-28 00:42:21,611 INFO L226 Difference]: Without dead ends: 67708 [2021-12-28 00:42:21,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2021-12-28 00:42:21,630 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 643 mSDsluCounter, 3047 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 3394 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 00:42:21,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [651 Valid, 3394 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 00:42:21,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67708 states. [2021-12-28 00:42:23,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67708 to 67622. [2021-12-28 00:42:23,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67622 states, 64275 states have (on average 1.6199299883313885) internal successors, (104121), 64281 states have internal predecessors, (104121), 3320 states have call successors, (3320), 21 states have call predecessors, (3320), 26 states have return successors, (3338), 3319 states have call predecessors, (3338), 3318 states have call successors, (3338) [2021-12-28 00:42:24,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67622 states to 67622 states and 110779 transitions. [2021-12-28 00:42:24,153 INFO L78 Accepts]: Start accepts. Automaton has 67622 states and 110779 transitions. Word has length 111 [2021-12-28 00:42:24,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:42:24,153 INFO L470 AbstractCegarLoop]: Abstraction has 67622 states and 110779 transitions. [2021-12-28 00:42:24,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 10 states have internal predecessors, (85), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2021-12-28 00:42:24,153 INFO L276 IsEmpty]: Start isEmpty. Operand 67622 states and 110779 transitions. [2021-12-28 00:42:24,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-28 00:42:24,198 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:42:24,199 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:42:24,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-28 00:42:24,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:42:24,399 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:42:24,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:42:24,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1154622035, now seen corresponding path program 1 times [2021-12-28 00:42:24,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:42:24,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160691502] [2021-12-28 00:42:24,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:42:24,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:42:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:24,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:42:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:24,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:42:24,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:24,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 00:42:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:24,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 00:42:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:24,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:42:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:24,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 00:42:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:24,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:42:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:24,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 00:42:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:24,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:42:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:24,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 00:42:24,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:24,503 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-28 00:42:24,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:42:24,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160691502] [2021-12-28 00:42:24,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160691502] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:42:24,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 00:42:24,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 00:42:24,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089672689] [2021-12-28 00:42:24,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:42:24,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 00:42:24,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:42:24,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 00:42:24,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-28 00:42:24,505 INFO L87 Difference]: Start difference. First operand 67622 states and 110779 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:42:29,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:42:29,204 INFO L93 Difference]: Finished difference Result 133107 states and 218465 transitions. [2021-12-28 00:42:29,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-28 00:42:29,205 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 112 [2021-12-28 00:42:29,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:42:29,575 INFO L225 Difference]: With dead ends: 133107 [2021-12-28 00:42:29,576 INFO L226 Difference]: Without dead ends: 132862 [2021-12-28 00:42:29,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=218, Invalid=538, Unknown=0, NotChecked=0, Total=756 [2021-12-28 00:42:29,617 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 1301 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 1690 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 2190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 1690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 00:42:29,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1315 Valid, 970 Invalid, 2190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 1690 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 00:42:29,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132862 states. [2021-12-28 00:42:34,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132862 to 132322. [2021-12-28 00:42:34,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132322 states, 125753 states have (on average 1.621869855987531) internal successors, (203955), 125766 states have internal predecessors, (203955), 6513 states have call successors, (6513), 40 states have call predecessors, (6513), 55 states have return successors, (6572), 6515 states have call predecessors, (6572), 6509 states have call successors, (6572) [2021-12-28 00:42:34,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132322 states to 132322 states and 217040 transitions. [2021-12-28 00:42:34,784 INFO L78 Accepts]: Start accepts. Automaton has 132322 states and 217040 transitions. Word has length 112 [2021-12-28 00:42:34,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 00:42:34,784 INFO L470 AbstractCegarLoop]: Abstraction has 132322 states and 217040 transitions. [2021-12-28 00:42:34,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-28 00:42:34,784 INFO L276 IsEmpty]: Start isEmpty. Operand 132322 states and 217040 transitions. [2021-12-28 00:42:34,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-28 00:42:34,854 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 00:42:34,854 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-28 00:42:34,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-28 00:42:34,854 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 00:42:34,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 00:42:34,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1059166913, now seen corresponding path program 1 times [2021-12-28 00:42:34,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 00:42:34,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606208759] [2021-12-28 00:42:34,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:42:34,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 00:42:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:34,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 00:42:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:34,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 00:42:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:34,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-28 00:42:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:34,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 00:42:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:34,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 00:42:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:34,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 00:42:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:34,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-28 00:42:34,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:34,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 00:42:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:34,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 00:42:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:34,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-28 00:42:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:34,966 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-28 00:42:34,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 00:42:34,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606208759] [2021-12-28 00:42:34,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606208759] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 00:42:34,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187096711] [2021-12-28 00:42:34,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 00:42:34,967 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 00:42:34,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 00:42:34,968 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 00:42:34,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-28 00:42:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 00:42:35,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-28 00:42:35,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 00:42:35,384 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-28 00:42:35,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 00:42:35,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187096711] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 00:42:35,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 00:42:35,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [14] total 24 [2021-12-28 00:42:35,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143257757] [2021-12-28 00:42:35,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 00:42:35,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 00:42:35,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 00:42:35,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 00:42:35,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2021-12-28 00:42:35,386 INFO L87 Difference]: Start difference. First operand 132322 states and 217040 transitions. Second operand has 12 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 7 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) [2021-12-28 00:42:38,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 00:42:38,989 INFO L93 Difference]: Finished difference Result 133246 states and 218480 transitions. [2021-12-28 00:42:38,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-28 00:42:38,990 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 7 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) Word has length 112 [2021-12-28 00:42:38,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 00:42:39,330 INFO L225 Difference]: With dead ends: 133246 [2021-12-28 00:42:39,330 INFO L226 Difference]: Without dead ends: 132676 [2021-12-28 00:42:39,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=791, Unknown=0, NotChecked=0, Total=870 [2021-12-28 00:42:39,367 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 148 mSDsluCounter, 2949 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 3248 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 00:42:39,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 3248 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 00:42:39,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132676 states.