./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 f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/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-?-f4b24e3 [2022-07-13 17:38:50,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 17:38:50,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 17:38:50,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 17:38:50,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 17:38:50,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 17:38:50,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 17:38:50,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 17:38:50,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 17:38:50,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 17:38:50,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 17:38:50,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 17:38:50,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 17:38:50,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 17:38:50,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 17:38:50,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 17:38:50,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 17:38:50,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 17:38:50,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 17:38:50,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 17:38:50,855 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 17:38:50,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 17:38:50,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 17:38:50,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 17:38:50,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 17:38:50,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 17:38:50,860 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 17:38:50,860 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 17:38:50,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 17:38:50,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 17:38:50,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 17:38:50,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 17:38:50,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 17:38:50,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 17:38:50,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 17:38:50,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 17:38:50,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 17:38:50,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 17:38:50,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 17:38:50,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 17:38:50,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 17:38:50,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 17:38:50,866 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 17:38:50,882 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 17:38:50,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 17:38:50,884 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 17:38:50,884 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 17:38:50,885 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 17:38:50,885 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 17:38:50,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 17:38:50,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 17:38:50,886 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 17:38:50,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 17:38:50,886 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 17:38:50,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 17:38:50,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 17:38:50,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 17:38:50,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 17:38:50,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 17:38:50,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 17:38:50,887 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 17:38:50,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 17:38:50,888 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 17:38:50,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 17:38:50,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 17:38:50,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 17:38:50,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 17:38:50,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:38:50,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 17:38:50,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 17:38:50,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 17:38:50,889 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 17:38:50,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 17:38:50,889 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 17:38:50,890 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 17:38:50,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 17:38:50,890 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b43506942a12950209750f07d771d1d388e9661c8c19f0364d898e10e246352 [2022-07-13 17:38:51,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 17:38:51,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 17:38:51,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 17:38:51,115 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 17:38:51,116 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 17:38:51,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec0_product09.cil.c [2022-07-13 17:38:51,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2ee933e5/a0fb0ebaa71545058dcb016b2a243639/FLAGcbed9505b [2022-07-13 17:38:51,553 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 17:38:51,553 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product09.cil.c [2022-07-13 17:38:51,569 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2ee933e5/a0fb0ebaa71545058dcb016b2a243639/FLAGcbed9505b [2022-07-13 17:38:51,890 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2ee933e5/a0fb0ebaa71545058dcb016b2a243639 [2022-07-13 17:38:51,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 17:38:51,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 17:38:51,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 17:38:51,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 17:38:51,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 17:38:51,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:38:51" (1/1) ... [2022-07-13 17:38:51,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e51e72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:51, skipping insertion in model container [2022-07-13 17:38:51,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:38:51" (1/1) ... [2022-07-13 17:38:51,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 17:38:51,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 17:38:52,308 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] [2022-07-13 17:38:52,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:38:52,324 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 17:38:52,404 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] [2022-07-13 17:38:52,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:38:52,422 INFO L208 MainTranslator]: Completed translation [2022-07-13 17:38:52,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:52 WrapperNode [2022-07-13 17:38:52,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 17:38:52,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 17:38:52,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 17:38:52,424 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 17:38:52,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:52" (1/1) ... [2022-07-13 17:38:52,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:52" (1/1) ... [2022-07-13 17:38:52,479 INFO L137 Inliner]: procedures = 110, calls = 144, calls flagged for inlining = 38, calls inlined = 33, statements flattened = 658 [2022-07-13 17:38:52,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 17:38:52,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 17:38:52,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 17:38:52,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 17:38:52,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:52" (1/1) ... [2022-07-13 17:38:52,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:52" (1/1) ... [2022-07-13 17:38:52,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:52" (1/1) ... [2022-07-13 17:38:52,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:52" (1/1) ... [2022-07-13 17:38:52,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:52" (1/1) ... [2022-07-13 17:38:52,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:52" (1/1) ... [2022-07-13 17:38:52,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:52" (1/1) ... [2022-07-13 17:38:52,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 17:38:52,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 17:38:52,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 17:38:52,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 17:38:52,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:52" (1/1) ... [2022-07-13 17:38:52,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:38:52,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:38:52,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 17:38:52,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 17:38:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Base [2022-07-13 17:38:52,613 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Base [2022-07-13 17:38:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-07-13 17:38:52,613 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-07-13 17:38:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-07-13 17:38:52,614 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-07-13 17:38:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-07-13 17:38:52,615 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-07-13 17:38:52,615 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-07-13 17:38:52,616 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-07-13 17:38:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-07-13 17:38:52,616 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-07-13 17:38:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-07-13 17:38:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-07-13 17:38:52,616 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-07-13 17:38:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 17:38:52,616 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-07-13 17:38:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-07-13 17:38:52,617 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-07-13 17:38:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-07-13 17:38:52,617 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-07-13 17:38:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-07-13 17:38:52,617 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-07-13 17:38:52,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-07-13 17:38:52,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 17:38:52,617 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-07-13 17:38:52,618 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-07-13 17:38:52,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 17:38:52,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 17:38:52,840 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 17:38:52,843 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 17:38:53,189 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 17:38:53,197 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 17:38:53,197 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 17:38:53,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:38:53 BoogieIcfgContainer [2022-07-13 17:38:53,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 17:38:53,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 17:38:53,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 17:38:53,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 17:38:53,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 05:38:51" (1/3) ... [2022-07-13 17:38:53,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23005c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:38:53, skipping insertion in model container [2022-07-13 17:38:53,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:38:52" (2/3) ... [2022-07-13 17:38:53,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23005c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:38:53, skipping insertion in model container [2022-07-13 17:38:53,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:38:53" (3/3) ... [2022-07-13 17:38:53,206 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec0_product09.cil.c [2022-07-13 17:38:53,217 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 17:38:53,218 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 17:38:53,258 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 17:38:53,262 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@53111e41, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7193abfd [2022-07-13 17:38:53,263 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 17:38:53,266 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) [2022-07-13 17:38:53,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-13 17:38:53,275 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:38:53,276 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:38:53,276 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:38:53,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:38:53,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1774813752, now seen corresponding path program 1 times [2022-07-13 17:38:53,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:38:53,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735655356] [2022-07-13 17:38:53,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:53,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:38:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:53,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:38:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:53,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:38:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:53,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:38:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:53,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 17:38:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:53,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-13 17:38:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:53,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-13 17:38:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:53,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 17:38:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:53,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 17:38:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:53,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-13 17:38:53,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:53,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 17:38:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:53,671 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-13 17:38:53,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:38:53,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735655356] [2022-07-13 17:38:53,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735655356] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:38:53,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513804410] [2022-07-13 17:38:53,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:53,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:38:53,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:38:53,674 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) [2022-07-13 17:38:53,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 17:38:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:53,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-13 17:38:53,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:38:53,899 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-13 17:38:53,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:38:53,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513804410] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:38:53,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:38:53,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2022-07-13 17:38:53,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830822615] [2022-07-13 17:38:53,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:38:53,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 17:38:53,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:38:53,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 17:38:53,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:38:53,940 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) [2022-07-13 17:38:53,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:38:53,966 INFO L93 Difference]: Finished difference Result 329 states and 487 transitions. [2022-07-13 17:38:53,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 17:38:53,968 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 [2022-07-13 17:38:53,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:38:53,990 INFO L225 Difference]: With dead ends: 329 [2022-07-13 17:38:53,991 INFO L226 Difference]: Without dead ends: 202 [2022-07-13 17:38:53,994 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:38:53,996 INFO L413 NwaCegarLoop]: 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 [2022-07-13 17:38:53,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:38:54,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-07-13 17:38:54,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2022-07-13 17:38:54,029 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) [2022-07-13 17:38:54,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 304 transitions. [2022-07-13 17:38:54,032 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 304 transitions. Word has length 84 [2022-07-13 17:38:54,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:38:54,034 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 304 transitions. [2022-07-13 17:38:54,046 INFO L496 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) [2022-07-13 17:38:54,046 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 304 transitions. [2022-07-13 17:38:54,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-13 17:38:54,049 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:38:54,049 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:38:54,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 17:38:54,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-07-13 17:38:54,267 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:38:54,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:38:54,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1993537687, now seen corresponding path program 1 times [2022-07-13 17:38:54,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:38:54,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968823789] [2022-07-13 17:38:54,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:54,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:38:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:54,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:38:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:54,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:38:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:54,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:38:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:54,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-13 17:38:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:54,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 17:38:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:54,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-13 17:38:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:54,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 17:38:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:54,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:38:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:54,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-13 17:38:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:54,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:38:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:54,455 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-13 17:38:54,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:38:54,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968823789] [2022-07-13 17:38:54,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968823789] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:38:54,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444490591] [2022-07-13 17:38:54,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:54,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:38:54,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:38:54,460 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) [2022-07-13 17:38:54,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 17:38:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:54,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 875 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 17:38:54,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:38:54,729 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-13 17:38:54,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:38:54,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444490591] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:38:54,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:38:54,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-07-13 17:38:54,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2548459] [2022-07-13 17:38:54,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:38:54,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 17:38:54,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:38:54,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 17:38:54,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:38:54,732 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) [2022-07-13 17:38:54,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:38:54,768 INFO L93 Difference]: Finished difference Result 319 states and 465 transitions. [2022-07-13 17:38:54,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 17:38:54,768 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 [2022-07-13 17:38:54,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:38:54,770 INFO L225 Difference]: With dead ends: 319 [2022-07-13 17:38:54,770 INFO L226 Difference]: Without dead ends: 205 [2022-07-13 17:38:54,771 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:38:54,773 INFO L413 NwaCegarLoop]: 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 [2022-07-13 17:38:54,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 602 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:38:54,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-07-13 17:38:54,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 204. [2022-07-13 17:38:54,798 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) [2022-07-13 17:38:54,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 306 transitions. [2022-07-13 17:38:54,799 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 306 transitions. Word has length 85 [2022-07-13 17:38:54,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:38:54,800 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 306 transitions. [2022-07-13 17:38:54,800 INFO L496 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) [2022-07-13 17:38:54,800 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 306 transitions. [2022-07-13 17:38:54,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-13 17:38:54,802 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:38:54,802 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:38:54,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 17:38:55,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-07-13 17:38:55,021 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:38:55,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:38:55,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1008731173, now seen corresponding path program 1 times [2022-07-13 17:38:55,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:38:55,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90650366] [2022-07-13 17:38:55,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:55,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:38:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:38:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:38:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-13 17:38:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-13 17:38:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-13 17:38:55,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 17:38:55,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 17:38:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 17:38:55,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 17:38:55,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-13 17:38:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,112 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-13 17:38:55,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:38:55,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90650366] [2022-07-13 17:38:55,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90650366] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:38:55,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190706632] [2022-07-13 17:38:55,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:55,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:38:55,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:38:55,117 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) [2022-07-13 17:38:55,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 17:38:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 17:38:55,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:38:55,354 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-13 17:38:55,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:38:55,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190706632] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:38:55,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:38:55,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-07-13 17:38:55,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419463516] [2022-07-13 17:38:55,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:38:55,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:38:55,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:38:55,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:38:55,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-13 17:38:55,356 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) [2022-07-13 17:38:55,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:38:55,397 INFO L93 Difference]: Finished difference Result 401 states and 605 transitions. [2022-07-13 17:38:55,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:38:55,398 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 [2022-07-13 17:38:55,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:38:55,399 INFO L225 Difference]: With dead ends: 401 [2022-07-13 17:38:55,400 INFO L226 Difference]: Without dead ends: 206 [2022-07-13 17:38:55,401 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:38:55,401 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 100 mSDsluCounter, 778 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:38:55,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1073 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:38:55,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-07-13 17:38:55,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2022-07-13 17:38:55,412 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) [2022-07-13 17:38:55,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 309 transitions. [2022-07-13 17:38:55,413 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 309 transitions. Word has length 90 [2022-07-13 17:38:55,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:38:55,413 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 309 transitions. [2022-07-13 17:38:55,413 INFO L496 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) [2022-07-13 17:38:55,414 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 309 transitions. [2022-07-13 17:38:55,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-13 17:38:55,415 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:38:55,415 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:38:55,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-13 17:38:55,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:38:55,644 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:38:55,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:38:55,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1416843367, now seen corresponding path program 1 times [2022-07-13 17:38:55,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:38:55,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291395058] [2022-07-13 17:38:55,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:55,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:38:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:38:55,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:38:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:38:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 17:38:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-13 17:38:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 17:38:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:38:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:38:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:38:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 17:38:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:55,760 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-13 17:38:55,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:38:55,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291395058] [2022-07-13 17:38:55,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291395058] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:38:55,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:38:55,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 17:38:55,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262320895] [2022-07-13 17:38:55,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:38:55,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 17:38:55,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:38:55,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 17:38:55,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:38:55,763 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) [2022-07-13 17:38:56,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:38:56,661 INFO L93 Difference]: Finished difference Result 517 states and 796 transitions. [2022-07-13 17:38:56,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 17:38:56,662 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 [2022-07-13 17:38:56,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:38:56,664 INFO L225 Difference]: With dead ends: 517 [2022-07-13 17:38:56,664 INFO L226 Difference]: Without dead ends: 330 [2022-07-13 17:38:56,665 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:38:56,665 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 559 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 17:38:56,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 895 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 17:38:56,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-07-13 17:38:56,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 206. [2022-07-13 17:38:56,687 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) [2022-07-13 17:38:56,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 308 transitions. [2022-07-13 17:38:56,688 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 308 transitions. Word has length 91 [2022-07-13 17:38:56,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:38:56,688 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 308 transitions. [2022-07-13 17:38:56,688 INFO L496 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) [2022-07-13 17:38:56,689 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 308 transitions. [2022-07-13 17:38:56,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-13 17:38:56,690 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:38:56,690 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:38:56,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 17:38:56,691 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:38:56,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:38:56,691 INFO L85 PathProgramCache]: Analyzing trace with hash -142239273, now seen corresponding path program 2 times [2022-07-13 17:38:56,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:38:56,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836505116] [2022-07-13 17:38:56,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:56,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:38:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:56,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:38:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:56,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:38:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:56,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:38:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:56,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-13 17:38:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:56,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-13 17:38:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:56,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 17:38:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:56,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-13 17:38:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:56,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 17:38:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:56,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 17:38:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:56,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:38:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:56,761 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-13 17:38:56,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:38:56,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836505116] [2022-07-13 17:38:56,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836505116] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:38:56,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:38:56,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 17:38:56,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583387985] [2022-07-13 17:38:56,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:38:56,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 17:38:56,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:38:56,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 17:38:56,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:38:56,763 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) [2022-07-13 17:38:57,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:38:57,633 INFO L93 Difference]: Finished difference Result 519 states and 799 transitions. [2022-07-13 17:38:57,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 17:38:57,633 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 [2022-07-13 17:38:57,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:38:57,635 INFO L225 Difference]: With dead ends: 519 [2022-07-13 17:38:57,635 INFO L226 Difference]: Without dead ends: 332 [2022-07-13 17:38:57,636 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:38:57,637 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 554 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 1601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 17:38:57,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 899 Invalid, 1601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 17:38:57,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-07-13 17:38:57,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 208. [2022-07-13 17:38:57,651 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) [2022-07-13 17:38:57,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 311 transitions. [2022-07-13 17:38:57,652 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 311 transitions. Word has length 92 [2022-07-13 17:38:57,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:38:57,652 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 311 transitions. [2022-07-13 17:38:57,652 INFO L496 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) [2022-07-13 17:38:57,652 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 311 transitions. [2022-07-13 17:38:57,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-13 17:38:57,653 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:38:57,654 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:38:57,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 17:38:57,654 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:38:57,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:38:57,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1191959156, now seen corresponding path program 1 times [2022-07-13 17:38:57,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:38:57,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777174282] [2022-07-13 17:38:57,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:57,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:38:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:57,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:38:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:57,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:38:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:57,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:38:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:57,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 17:38:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:57,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-13 17:38:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:57,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 17:38:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:57,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 17:38:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:57,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 17:38:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:57,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 17:38:57,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:57,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-13 17:38:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:57,709 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-13 17:38:57,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:38:57,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777174282] [2022-07-13 17:38:57,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777174282] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:38:57,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390947195] [2022-07-13 17:38:57,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:57,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:38:57,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:38:57,713 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) [2022-07-13 17:38:57,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 17:38:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:57,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 17:38:57,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:38:57,905 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-13 17:38:57,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 17:38:57,965 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-13 17:38:57,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390947195] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 17:38:57,966 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 17:38:57,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2022-07-13 17:38:57,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507648711] [2022-07-13 17:38:57,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 17:38:57,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 17:38:57,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:38:57,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 17:38:57,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:38:57,970 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) [2022-07-13 17:38:58,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:38:58,655 INFO L93 Difference]: Finished difference Result 614 states and 974 transitions. [2022-07-13 17:38:58,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 17:38:58,655 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 [2022-07-13 17:38:58,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:38:58,658 INFO L225 Difference]: With dead ends: 614 [2022-07-13 17:38:58,658 INFO L226 Difference]: Without dead ends: 500 [2022-07-13 17:38:58,659 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:38:58,659 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 943 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 17:38:58,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 1081 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 17:38:58,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-07-13 17:38:58,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 352. [2022-07-13 17:38:58,684 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) [2022-07-13 17:38:58,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 575 transitions. [2022-07-13 17:38:58,685 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 575 transitions. Word has length 93 [2022-07-13 17:38:58,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:38:58,686 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 575 transitions. [2022-07-13 17:38:58,686 INFO L496 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) [2022-07-13 17:38:58,686 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 575 transitions. [2022-07-13 17:38:58,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-13 17:38:58,688 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:38:58,688 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:38:58,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 17:38:58,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:38:58,903 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:38:58,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:38:58,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1719121859, now seen corresponding path program 1 times [2022-07-13 17:38:58,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:38:58,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97344612] [2022-07-13 17:38:58,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:58,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:38:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:58,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:38:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:58,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:38:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:58,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:38:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:58,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-13 17:38:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:58,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 17:38:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:58,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-13 17:38:58,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:58,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-13 17:38:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:58,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-13 17:38:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:58,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-13 17:38:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:58,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-13 17:38:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:58,952 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-13 17:38:58,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:38:58,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97344612] [2022-07-13 17:38:58,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97344612] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:38:58,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:38:58,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:38:58,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419494054] [2022-07-13 17:38:58,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:38:58,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:38:58,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:38:58,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:38:58,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:38:58,954 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) [2022-07-13 17:38:59,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:38:59,605 INFO L93 Difference]: Finished difference Result 951 states and 1590 transitions. [2022-07-13 17:38:59,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:38:59,606 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 [2022-07-13 17:38:59,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:38:59,610 INFO L225 Difference]: With dead ends: 951 [2022-07-13 17:38:59,610 INFO L226 Difference]: Without dead ends: 627 [2022-07-13 17:38:59,612 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:38:59,613 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 549 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 17:38:59,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 797 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 17:38:59,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2022-07-13 17:38:59,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 495. [2022-07-13 17:38:59,637 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) [2022-07-13 17:38:59,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 832 transitions. [2022-07-13 17:38:59,640 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 832 transitions. Word has length 100 [2022-07-13 17:38:59,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:38:59,641 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 832 transitions. [2022-07-13 17:38:59,642 INFO L496 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) [2022-07-13 17:38:59,642 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 832 transitions. [2022-07-13 17:38:59,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-13 17:38:59,644 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:38:59,644 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:38:59,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 17:38:59,644 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:38:59,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:38:59,644 INFO L85 PathProgramCache]: Analyzing trace with hash 800915596, now seen corresponding path program 1 times [2022-07-13 17:38:59,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:38:59,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229144529] [2022-07-13 17:38:59,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:38:59,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:38:59,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:59,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:38:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:59,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:38:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:59,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:38:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:59,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-13 17:38:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:59,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 17:38:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:59,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 17:38:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:59,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-13 17:38:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:59,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 17:38:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:59,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-13 17:38:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:59,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:38:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:38:59,709 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-13 17:38:59,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:38:59,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229144529] [2022-07-13 17:38:59,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229144529] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:38:59,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:38:59,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:38:59,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738552992] [2022-07-13 17:38:59,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:38:59,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:38:59,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:38:59,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:38:59,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:38:59,711 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) [2022-07-13 17:39:00,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:00,277 INFO L93 Difference]: Finished difference Result 1323 states and 2260 transitions. [2022-07-13 17:39:00,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:39:00,278 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 [2022-07-13 17:39:00,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:00,282 INFO L225 Difference]: With dead ends: 1323 [2022-07-13 17:39:00,282 INFO L226 Difference]: Without dead ends: 864 [2022-07-13 17:39:00,283 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:39:00,284 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 547 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:00,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 796 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 17:39:00,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2022-07-13 17:39:00,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 732. [2022-07-13 17:39:00,310 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) [2022-07-13 17:39:00,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1254 transitions. [2022-07-13 17:39:00,313 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1254 transitions. Word has length 101 [2022-07-13 17:39:00,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:00,313 INFO L495 AbstractCegarLoop]: Abstraction has 732 states and 1254 transitions. [2022-07-13 17:39:00,313 INFO L496 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) [2022-07-13 17:39:00,313 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1254 transitions. [2022-07-13 17:39:00,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-13 17:39:00,317 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:00,317 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:39:00,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 17:39:00,317 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:00,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:00,318 INFO L85 PathProgramCache]: Analyzing trace with hash 437570885, now seen corresponding path program 1 times [2022-07-13 17:39:00,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:00,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550624171] [2022-07-13 17:39:00,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:00,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:00,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:00,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:00,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:39:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:00,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-13 17:39:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:00,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 17:39:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:00,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:39:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:00,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-13 17:39:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:00,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:39:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:00,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-13 17:39:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:00,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-13 17:39:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:00,401 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-13 17:39:00,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:00,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550624171] [2022-07-13 17:39:00,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550624171] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:00,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:00,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:39:00,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98993851] [2022-07-13 17:39:00,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:00,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:39:00,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:00,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:39:00,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:39:00,403 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) [2022-07-13 17:39:01,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:01,046 INFO L93 Difference]: Finished difference Result 1919 states and 3324 transitions. [2022-07-13 17:39:01,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:39:01,047 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 [2022-07-13 17:39:01,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:01,051 INFO L225 Difference]: With dead ends: 1919 [2022-07-13 17:39:01,052 INFO L226 Difference]: Without dead ends: 1242 [2022-07-13 17:39:01,053 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:39:01,053 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 546 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:01,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 814 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 17:39:01,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2022-07-13 17:39:01,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1110. [2022-07-13 17:39:01,086 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) [2022-07-13 17:39:01,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1920 transitions. [2022-07-13 17:39:01,089 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1920 transitions. Word has length 102 [2022-07-13 17:39:01,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:01,090 INFO L495 AbstractCegarLoop]: Abstraction has 1110 states and 1920 transitions. [2022-07-13 17:39:01,090 INFO L496 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) [2022-07-13 17:39:01,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1920 transitions. [2022-07-13 17:39:01,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-13 17:39:01,093 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:01,093 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:39:01,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 17:39:01,094 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:01,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:01,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1191147766, now seen corresponding path program 1 times [2022-07-13 17:39:01,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:01,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927183461] [2022-07-13 17:39:01,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:01,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:01,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:39:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-13 17:39:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-13 17:39:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-13 17:39:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-13 17:39:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 17:39:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-13 17:39:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-13 17:39:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,150 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-13 17:39:01,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:01,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927183461] [2022-07-13 17:39:01,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927183461] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:01,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:01,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:39:01,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515070547] [2022-07-13 17:39:01,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:01,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:39:01,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:01,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:39:01,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:39:01,152 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) [2022-07-13 17:39:01,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:01,778 INFO L93 Difference]: Finished difference Result 2869 states and 5007 transitions. [2022-07-13 17:39:01,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:39:01,779 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 [2022-07-13 17:39:01,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:01,785 INFO L225 Difference]: With dead ends: 2869 [2022-07-13 17:39:01,786 INFO L226 Difference]: Without dead ends: 1852 [2022-07-13 17:39:01,788 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:39:01,788 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 542 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:01,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 797 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 17:39:01,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2022-07-13 17:39:01,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1720. [2022-07-13 17:39:01,868 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) [2022-07-13 17:39:01,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2986 transitions. [2022-07-13 17:39:01,873 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2986 transitions. Word has length 103 [2022-07-13 17:39:01,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:01,874 INFO L495 AbstractCegarLoop]: Abstraction has 1720 states and 2986 transitions. [2022-07-13 17:39:01,874 INFO L496 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) [2022-07-13 17:39:01,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2986 transitions. [2022-07-13 17:39:01,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-13 17:39:01,879 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:01,879 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:39:01,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 17:39:01,879 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:01,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:01,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1632128313, now seen corresponding path program 1 times [2022-07-13 17:39:01,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:01,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138498130] [2022-07-13 17:39:01,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:01,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:39:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-13 17:39:01,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 17:39:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-13 17:39:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 17:39:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 17:39:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-13 17:39:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-13 17:39:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:01,927 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-13 17:39:01,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:01,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138498130] [2022-07-13 17:39:01,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138498130] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:01,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:01,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:39:01,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832228465] [2022-07-13 17:39:01,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:01,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:39:01,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:01,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:39:01,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:39:01,929 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) [2022-07-13 17:39:02,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:02,506 INFO L93 Difference]: Finished difference Result 4434 states and 7763 transitions. [2022-07-13 17:39:02,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:39:02,506 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 [2022-07-13 17:39:02,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:02,518 INFO L225 Difference]: With dead ends: 4434 [2022-07-13 17:39:02,518 INFO L226 Difference]: Without dead ends: 2872 [2022-07-13 17:39:02,521 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:39:02,521 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 543 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:02,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 789 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 17:39:02,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2022-07-13 17:39:02,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 2740. [2022-07-13 17:39:02,615 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) [2022-07-13 17:39:02,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2740 states to 2740 states and 4759 transitions. [2022-07-13 17:39:02,623 INFO L78 Accepts]: Start accepts. Automaton has 2740 states and 4759 transitions. Word has length 104 [2022-07-13 17:39:02,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:02,624 INFO L495 AbstractCegarLoop]: Abstraction has 2740 states and 4759 transitions. [2022-07-13 17:39:02,625 INFO L496 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) [2022-07-13 17:39:02,625 INFO L276 IsEmpty]: Start isEmpty. Operand 2740 states and 4759 transitions. [2022-07-13 17:39:02,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-13 17:39:02,633 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:02,633 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:39:02,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 17:39:02,633 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:02,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:02,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1275080072, now seen corresponding path program 1 times [2022-07-13 17:39:02,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:02,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642861158] [2022-07-13 17:39:02,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:02,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:02,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:02,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:02,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:39:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:02,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-13 17:39:02,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:02,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 17:39:02,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:02,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-13 17:39:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:02,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-13 17:39:02,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:02,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-13 17:39:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:02,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-13 17:39:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:02,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-13 17:39:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:02,705 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-13 17:39:02,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:02,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642861158] [2022-07-13 17:39:02,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642861158] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:02,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:02,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:39:02,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110424520] [2022-07-13 17:39:02,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:02,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:39:02,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:02,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:39:02,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:39:02,708 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) [2022-07-13 17:39:03,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:03,314 INFO L93 Difference]: Finished difference Result 6859 states and 12055 transitions. [2022-07-13 17:39:03,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:39:03,314 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 [2022-07-13 17:39:03,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:03,328 INFO L225 Difference]: With dead ends: 6859 [2022-07-13 17:39:03,328 INFO L226 Difference]: Without dead ends: 4457 [2022-07-13 17:39:03,332 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:39:03,332 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 540 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:03,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 805 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 17:39:03,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4457 states. [2022-07-13 17:39:03,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4457 to 4325. [2022-07-13 17:39:03,473 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) [2022-07-13 17:39:03,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 7530 transitions. [2022-07-13 17:39:03,482 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 7530 transitions. Word has length 105 [2022-07-13 17:39:03,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:03,482 INFO L495 AbstractCegarLoop]: Abstraction has 4325 states and 7530 transitions. [2022-07-13 17:39:03,482 INFO L496 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) [2022-07-13 17:39:03,482 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 7530 transitions. [2022-07-13 17:39:03,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-13 17:39:03,492 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:03,493 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:39:03,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 17:39:03,493 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:03,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:03,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1046251593, now seen corresponding path program 1 times [2022-07-13 17:39:03,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:03,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131990900] [2022-07-13 17:39:03,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:03,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:03,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:03,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:03,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:39:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:03,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-13 17:39:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:03,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 17:39:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:03,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-13 17:39:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:03,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-13 17:39:03,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:03,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-13 17:39:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:03,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-13 17:39:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:03,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-13 17:39:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:03,552 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-13 17:39:03,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:03,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131990900] [2022-07-13 17:39:03,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131990900] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:03,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:03,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:39:03,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141996675] [2022-07-13 17:39:03,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:03,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:39:03,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:03,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:39:03,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:39:03,553 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) [2022-07-13 17:39:04,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:04,262 INFO L93 Difference]: Finished difference Result 11366 states and 19970 transitions. [2022-07-13 17:39:04,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:39:04,263 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 [2022-07-13 17:39:04,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:04,285 INFO L225 Difference]: With dead ends: 11366 [2022-07-13 17:39:04,285 INFO L226 Difference]: Without dead ends: 7522 [2022-07-13 17:39:04,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-13 17:39:04,291 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 538 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:04,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 814 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 17:39:04,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7522 states. [2022-07-13 17:39:04,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7522 to 7390. [2022-07-13 17:39:04,480 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) [2022-07-13 17:39:04,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7390 states to 7390 states and 12842 transitions. [2022-07-13 17:39:04,494 INFO L78 Accepts]: Start accepts. Automaton has 7390 states and 12842 transitions. Word has length 106 [2022-07-13 17:39:04,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:04,495 INFO L495 AbstractCegarLoop]: Abstraction has 7390 states and 12842 transitions. [2022-07-13 17:39:04,495 INFO L496 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) [2022-07-13 17:39:04,495 INFO L276 IsEmpty]: Start isEmpty. Operand 7390 states and 12842 transitions. [2022-07-13 17:39:04,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-13 17:39:04,512 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:04,512 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:39:04,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-13 17:39:04,513 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:04,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:04,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1300941798, now seen corresponding path program 1 times [2022-07-13 17:39:04,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:04,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042346072] [2022-07-13 17:39:04,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:04,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:04,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:04,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:04,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:39:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:04,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-13 17:39:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:04,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-13 17:39:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:04,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 17:39:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:04,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 17:39:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:04,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-13 17:39:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:04,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-13 17:39:04,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:04,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-13 17:39:04,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:04,575 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-13 17:39:04,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:04,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042346072] [2022-07-13 17:39:04,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042346072] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:04,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:04,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:39:04,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683207297] [2022-07-13 17:39:04,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:04,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:39:04,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:04,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:39:04,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:39:04,577 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) [2022-07-13 17:39:05,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:05,372 INFO L93 Difference]: Finished difference Result 16936 states and 29417 transitions. [2022-07-13 17:39:05,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:39:05,372 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 [2022-07-13 17:39:05,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:05,410 INFO L225 Difference]: With dead ends: 16936 [2022-07-13 17:39:05,411 INFO L226 Difference]: Without dead ends: 10773 [2022-07-13 17:39:05,423 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:39:05,423 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 534 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:05,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 765 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 17:39:05,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10773 states. [2022-07-13 17:39:05,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10773 to 10641. [2022-07-13 17:39:05,733 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) [2022-07-13 17:39:05,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10641 states to 10641 states and 18189 transitions. [2022-07-13 17:39:05,757 INFO L78 Accepts]: Start accepts. Automaton has 10641 states and 18189 transitions. Word has length 107 [2022-07-13 17:39:05,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:05,757 INFO L495 AbstractCegarLoop]: Abstraction has 10641 states and 18189 transitions. [2022-07-13 17:39:05,757 INFO L496 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) [2022-07-13 17:39:05,757 INFO L276 IsEmpty]: Start isEmpty. Operand 10641 states and 18189 transitions. [2022-07-13 17:39:05,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-13 17:39:05,778 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:05,778 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:39:05,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-13 17:39:05,778 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:05,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:05,779 INFO L85 PathProgramCache]: Analyzing trace with hash 752921054, now seen corresponding path program 2 times [2022-07-13 17:39:05,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:05,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80395051] [2022-07-13 17:39:05,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:05,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:05,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:05,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:05,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:05,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:39:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:05,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-13 17:39:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:05,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:39:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:05,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:39:05,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:05,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:39:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:05,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 17:39:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:05,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-13 17:39:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:05,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-13 17:39:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:05,843 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-13 17:39:05,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:05,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80395051] [2022-07-13 17:39:05,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80395051] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:05,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:05,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 17:39:05,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060034284] [2022-07-13 17:39:05,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:05,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 17:39:05,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:05,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 17:39:05,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:39:05,846 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) [2022-07-13 17:39:06,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:06,842 INFO L93 Difference]: Finished difference Result 19747 states and 33880 transitions. [2022-07-13 17:39:06,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 17:39:06,842 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 [2022-07-13 17:39:06,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:06,863 INFO L225 Difference]: With dead ends: 19747 [2022-07-13 17:39:06,864 INFO L226 Difference]: Without dead ends: 10773 [2022-07-13 17:39:06,879 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:39:06,880 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 748 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:06,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 1143 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 17:39:06,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10773 states. [2022-07-13 17:39:07,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10773 to 10641. [2022-07-13 17:39:07,198 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) [2022-07-13 17:39:07,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10641 states to 10641 states and 18052 transitions. [2022-07-13 17:39:07,271 INFO L78 Accepts]: Start accepts. Automaton has 10641 states and 18052 transitions. Word has length 108 [2022-07-13 17:39:07,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:07,271 INFO L495 AbstractCegarLoop]: Abstraction has 10641 states and 18052 transitions. [2022-07-13 17:39:07,272 INFO L496 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) [2022-07-13 17:39:07,272 INFO L276 IsEmpty]: Start isEmpty. Operand 10641 states and 18052 transitions. [2022-07-13 17:39:07,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-13 17:39:07,290 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:07,290 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:39:07,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-13 17:39:07,291 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:07,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:07,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1599377333, now seen corresponding path program 1 times [2022-07-13 17:39:07,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:07,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506671626] [2022-07-13 17:39:07,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:07,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:07,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:07,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:07,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:39:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:07,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-13 17:39:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:07,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-13 17:39:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:07,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-13 17:39:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:07,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 17:39:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:07,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 17:39:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:07,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-13 17:39:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:07,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-13 17:39:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:07,353 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-13 17:39:07,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:07,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506671626] [2022-07-13 17:39:07,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506671626] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:07,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:07,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:39:07,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352140845] [2022-07-13 17:39:07,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:07,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:39:07,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:07,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:39:07,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:39:07,355 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) [2022-07-13 17:39:08,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:08,397 INFO L93 Difference]: Finished difference Result 28476 states and 48542 transitions. [2022-07-13 17:39:08,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:39:08,398 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 [2022-07-13 17:39:08,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:08,450 INFO L225 Difference]: With dead ends: 28476 [2022-07-13 17:39:08,450 INFO L226 Difference]: Without dead ends: 19350 [2022-07-13 17:39:08,475 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:39:08,475 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 534 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:08,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 792 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 17:39:08,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19350 states. [2022-07-13 17:39:09,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19350 to 19218. [2022-07-13 17:39:09,096 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) [2022-07-13 17:39:09,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19218 states to 19218 states and 32377 transitions. [2022-07-13 17:39:09,140 INFO L78 Accepts]: Start accepts. Automaton has 19218 states and 32377 transitions. Word has length 108 [2022-07-13 17:39:09,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:09,140 INFO L495 AbstractCegarLoop]: Abstraction has 19218 states and 32377 transitions. [2022-07-13 17:39:09,141 INFO L496 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) [2022-07-13 17:39:09,141 INFO L276 IsEmpty]: Start isEmpty. Operand 19218 states and 32377 transitions. [2022-07-13 17:39:09,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-07-13 17:39:09,163 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:09,163 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:39:09,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-13 17:39:09,163 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:09,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:09,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1953118816, now seen corresponding path program 1 times [2022-07-13 17:39:09,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:09,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414339304] [2022-07-13 17:39:09,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:09,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:09,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:09,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:09,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:09,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:39:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:09,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 17:39:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:09,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-13 17:39:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:09,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 17:39:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:09,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-13 17:39:09,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:09,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 17:39:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:09,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-13 17:39:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:09,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 17:39:09,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:09,232 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-13 17:39:09,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:09,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414339304] [2022-07-13 17:39:09,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414339304] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:09,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:09,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:39:09,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330472340] [2022-07-13 17:39:09,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:09,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:39:09,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:09,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:39:09,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:39:09,234 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) [2022-07-13 17:39:10,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:10,700 INFO L93 Difference]: Finished difference Result 52998 states and 89549 transitions. [2022-07-13 17:39:10,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:39:10,701 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 [2022-07-13 17:39:10,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:10,781 INFO L225 Difference]: With dead ends: 52998 [2022-07-13 17:39:10,781 INFO L226 Difference]: Without dead ends: 35799 [2022-07-13 17:39:10,802 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:39:10,802 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 531 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:10,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 816 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 17:39:10,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35799 states. [2022-07-13 17:39:11,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35799 to 35667. [2022-07-13 17:39:12,012 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) [2022-07-13 17:39:12,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35667 states to 35667 states and 59576 transitions. [2022-07-13 17:39:12,103 INFO L78 Accepts]: Start accepts. Automaton has 35667 states and 59576 transitions. Word has length 109 [2022-07-13 17:39:12,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:12,104 INFO L495 AbstractCegarLoop]: Abstraction has 35667 states and 59576 transitions. [2022-07-13 17:39:12,104 INFO L496 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) [2022-07-13 17:39:12,104 INFO L276 IsEmpty]: Start isEmpty. Operand 35667 states and 59576 transitions. [2022-07-13 17:39:12,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-13 17:39:12,138 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:12,138 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:39:12,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-13 17:39:12,138 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:12,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:12,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1046204083, now seen corresponding path program 1 times [2022-07-13 17:39:12,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:12,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188426116] [2022-07-13 17:39:12,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:12,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:12,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:39:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 17:39:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 17:39:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-13 17:39:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-13 17:39:12,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-13 17:39:12,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-13 17:39:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-13 17:39:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:12,203 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-13 17:39:12,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:12,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188426116] [2022-07-13 17:39:12,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188426116] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:12,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:12,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:39:12,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916543744] [2022-07-13 17:39:12,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:12,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:39:12,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:12,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:39:12,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:39:12,205 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) [2022-07-13 17:39:14,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:14,293 INFO L93 Difference]: Finished difference Result 67756 states and 113107 transitions. [2022-07-13 17:39:14,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:39:14,294 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 [2022-07-13 17:39:14,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:14,469 INFO L225 Difference]: With dead ends: 67756 [2022-07-13 17:39:14,469 INFO L226 Difference]: Without dead ends: 67642 [2022-07-13 17:39:14,491 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:39:14,492 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 529 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 542 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:14,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [542 Valid, 816 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 17:39:14,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67642 states. [2022-07-13 17:39:16,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67642 to 67510. [2022-07-13 17:39:16,634 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) [2022-07-13 17:39:17,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67510 states to 67510 states and 111643 transitions. [2022-07-13 17:39:17,124 INFO L78 Accepts]: Start accepts. Automaton has 67510 states and 111643 transitions. Word has length 110 [2022-07-13 17:39:17,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:17,124 INFO L495 AbstractCegarLoop]: Abstraction has 67510 states and 111643 transitions. [2022-07-13 17:39:17,125 INFO L496 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) [2022-07-13 17:39:17,125 INFO L276 IsEmpty]: Start isEmpty. Operand 67510 states and 111643 transitions. [2022-07-13 17:39:17,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-13 17:39:17,162 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:17,162 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:39:17,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-13 17:39:17,162 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:17,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:17,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1765900778, now seen corresponding path program 1 times [2022-07-13 17:39:17,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:17,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179981079] [2022-07-13 17:39:17,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:17,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:17,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:17,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:17,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:39:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:17,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 17:39:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:17,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:39:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:17,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-13 17:39:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:17,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-13 17:39:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:17,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-13 17:39:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:17,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-13 17:39:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:17,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-13 17:39:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:17,216 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-13 17:39:17,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:17,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179981079] [2022-07-13 17:39:17,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179981079] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:17,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:17,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 17:39:17,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71091855] [2022-07-13 17:39:17,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:17,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 17:39:17,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:17,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 17:39:17,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:39:17,220 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) [2022-07-13 17:39:20,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:20,042 INFO L93 Difference]: Finished difference Result 131923 states and 218520 transitions. [2022-07-13 17:39:20,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 17:39:20,043 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 [2022-07-13 17:39:20,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:20,278 INFO L225 Difference]: With dead ends: 131923 [2022-07-13 17:39:20,278 INFO L226 Difference]: Without dead ends: 67608 [2022-07-13 17:39:20,343 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:39:20,343 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 739 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:20,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 1162 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 17:39:20,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67608 states. [2022-07-13 17:39:22,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67608 to 67476. [2022-07-13 17:39:22,573 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) [2022-07-13 17:39:22,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67476 states to 67476 states and 110564 transitions. [2022-07-13 17:39:22,744 INFO L78 Accepts]: Start accepts. Automaton has 67476 states and 110564 transitions. Word has length 111 [2022-07-13 17:39:22,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:22,744 INFO L495 AbstractCegarLoop]: Abstraction has 67476 states and 110564 transitions. [2022-07-13 17:39:22,744 INFO L496 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) [2022-07-13 17:39:22,744 INFO L276 IsEmpty]: Start isEmpty. Operand 67476 states and 110564 transitions. [2022-07-13 17:39:22,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-13 17:39:22,780 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:22,780 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:39:22,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-13 17:39:22,780 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:22,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:22,781 INFO L85 PathProgramCache]: Analyzing trace with hash -414235298, now seen corresponding path program 1 times [2022-07-13 17:39:22,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:22,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218720558] [2022-07-13 17:39:22,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:22,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:22,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:22,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:22,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:39:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:22,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 17:39:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:22,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:39:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:22,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-13 17:39:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:22,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-13 17:39:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:22,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-13 17:39:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:22,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-13 17:39:22,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:22,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-13 17:39:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:22,986 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-13 17:39:22,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:22,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218720558] [2022-07-13 17:39:22,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218720558] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:39:22,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979207342] [2022-07-13 17:39:22,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:22,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:39:22,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:39:23,004 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) [2022-07-13 17:39:23,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 17:39:23,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:23,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-13 17:39:23,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:39:23,448 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-13 17:39:23,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:39:23,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979207342] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:23,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:39:23,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [18] total 28 [2022-07-13 17:39:23,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100244194] [2022-07-13 17:39:23,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:23,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 17:39:23,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:23,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 17:39:23,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2022-07-13 17:39:23,450 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) [2022-07-13 17:39:25,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:25,734 INFO L93 Difference]: Finished difference Result 67816 states and 111054 transitions. [2022-07-13 17:39:25,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-13 17:39:25,735 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 [2022-07-13 17:39:25,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:26,049 INFO L225 Difference]: With dead ends: 67816 [2022-07-13 17:39:26,050 INFO L226 Difference]: Without dead ends: 67708 [2022-07-13 17:39:26,070 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:39:26,071 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 643 mSDsluCounter, 3046 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 3394 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:26,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 3394 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 17:39:26,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67708 states. [2022-07-13 17:39:28,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67708 to 67622. [2022-07-13 17:39:28,426 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) [2022-07-13 17:39:28,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67622 states to 67622 states and 110779 transitions. [2022-07-13 17:39:28,569 INFO L78 Accepts]: Start accepts. Automaton has 67622 states and 110779 transitions. Word has length 111 [2022-07-13 17:39:28,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:28,570 INFO L495 AbstractCegarLoop]: Abstraction has 67622 states and 110779 transitions. [2022-07-13 17:39:28,570 INFO L496 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) [2022-07-13 17:39:28,570 INFO L276 IsEmpty]: Start isEmpty. Operand 67622 states and 110779 transitions. [2022-07-13 17:39:28,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-13 17:39:28,612 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:28,613 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:39:28,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-13 17:39:28,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:39:28,827 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:28,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:28,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1154622035, now seen corresponding path program 1 times [2022-07-13 17:39:28,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:28,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437847623] [2022-07-13 17:39:28,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:28,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:28,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:28,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:28,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:39:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:28,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 17:39:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:28,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:39:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:28,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-13 17:39:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:28,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-13 17:39:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:28,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-13 17:39:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:28,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-13 17:39:28,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:28,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 17:39:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:28,900 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-13 17:39:28,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:28,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437847623] [2022-07-13 17:39:28,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437847623] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:28,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:39:28,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 17:39:28,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140950289] [2022-07-13 17:39:28,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:28,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 17:39:28,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:28,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 17:39:28,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:39:28,902 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) [2022-07-13 17:39:33,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:33,872 INFO L93 Difference]: Finished difference Result 133107 states and 218465 transitions. [2022-07-13 17:39:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 17:39:33,873 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 [2022-07-13 17:39:33,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:34,221 INFO L225 Difference]: With dead ends: 133107 [2022-07-13 17:39:34,222 INFO L226 Difference]: Without dead ends: 132862 [2022-07-13 17:39:34,263 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:39:34,264 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 1303 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 1654 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 1654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:34,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1320 Valid, 968 Invalid, 2166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 1654 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-13 17:39:34,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132862 states. [2022-07-13 17:39:38,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132862 to 132322. [2022-07-13 17:39:39,077 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) [2022-07-13 17:39:39,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132322 states to 132322 states and 217040 transitions. [2022-07-13 17:39:39,638 INFO L78 Accepts]: Start accepts. Automaton has 132322 states and 217040 transitions. Word has length 112 [2022-07-13 17:39:39,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:39:39,639 INFO L495 AbstractCegarLoop]: Abstraction has 132322 states and 217040 transitions. [2022-07-13 17:39:39,639 INFO L496 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) [2022-07-13 17:39:39,639 INFO L276 IsEmpty]: Start isEmpty. Operand 132322 states and 217040 transitions. [2022-07-13 17:39:39,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-13 17:39:39,709 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:39:39,718 INFO L195 NwaCegarLoop]: 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] [2022-07-13 17:39:39,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-13 17:39:39,719 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__BaseErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:39:39,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:39:39,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1059166913, now seen corresponding path program 1 times [2022-07-13 17:39:39,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:39:39,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938210167] [2022-07-13 17:39:39,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:39,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:39:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:39,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-13 17:39:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:39,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-13 17:39:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:39,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:39:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:39,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-13 17:39:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:39,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-13 17:39:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:39,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-13 17:39:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:39,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-13 17:39:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:39,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-13 17:39:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:39,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-13 17:39:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:39,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 17:39:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:39,856 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-13 17:39:39,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:39:39,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938210167] [2022-07-13 17:39:39,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938210167] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 17:39:39,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770024766] [2022-07-13 17:39:39,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:39:39,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 17:39:39,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:39:39,882 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) [2022-07-13 17:39:39,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 17:39:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:39:40,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-13 17:39:40,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 17:39:40,228 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-13 17:39:40,229 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 17:39:40,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770024766] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:39:40,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 17:39:40,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [14] total 24 [2022-07-13 17:39:40,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044560577] [2022-07-13 17:39:40,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:39:40,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 17:39:40,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:39:40,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 17:39:40,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2022-07-13 17:39:40,231 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) [2022-07-13 17:39:44,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:39:44,001 INFO L93 Difference]: Finished difference Result 133246 states and 218480 transitions. [2022-07-13 17:39:44,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 17:39:44,001 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 [2022-07-13 17:39:44,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:39:44,451 INFO L225 Difference]: With dead ends: 133246 [2022-07-13 17:39:44,451 INFO L226 Difference]: Without dead ends: 132676 [2022-07-13 17:39:44,487 INFO L412 NwaCegarLoop]: 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 [2022-07-13 17:39:44,488 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 148 mSDsluCounter, 2847 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 3146 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:39:44,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 3146 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:39:44,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132676 states.