./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec11_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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_spec11_product37.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 70e213904f46d9e57b153e0058e447b0a5def856d61642628bc56ad0035cdccb --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 04:44:30,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 04:44:30,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 04:44:30,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 04:44:30,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 04:44:30,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 04:44:30,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 04:44:30,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 04:44:30,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 04:44:30,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 04:44:30,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 04:44:30,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 04:44:30,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 04:44:30,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 04:44:30,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 04:44:30,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 04:44:30,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 04:44:30,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 04:44:30,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 04:44:30,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 04:44:30,919 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 04:44:30,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 04:44:30,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 04:44:30,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 04:44:30,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 04:44:30,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 04:44:30,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 04:44:30,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 04:44:30,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 04:44:30,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 04:44:30,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 04:44:30,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 04:44:30,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 04:44:30,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 04:44:30,937 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 04:44:30,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 04:44:30,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 04:44:30,939 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 04:44:30,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 04:44:30,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 04:44:30,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 04:44:30,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 04:44:30,946 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 04:44:30,978 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 04:44:30,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 04:44:30,979 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 04:44:30,979 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 04:44:30,980 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 04:44:30,980 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 04:44:30,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 04:44:30,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 04:44:30,981 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 04:44:30,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 04:44:30,982 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 04:44:30,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 04:44:30,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 04:44:30,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 04:44:30,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 04:44:30,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 04:44:30,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 04:44:30,983 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 04:44:30,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 04:44:30,984 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 04:44:30,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 04:44:30,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 04:44:30,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 04:44:30,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 04:44:30,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 04:44:30,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 04:44:30,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 04:44:30,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 04:44:30,986 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 04:44:30,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 04:44:30,986 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 04:44:30,986 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 04:44:30,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 04:44:30,987 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70e213904f46d9e57b153e0058e447b0a5def856d61642628bc56ad0035cdccb [2022-07-21 04:44:31,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 04:44:31,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 04:44:31,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 04:44:31,354 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 04:44:31,354 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 04:44:31,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec11_product37.cil.c [2022-07-21 04:44:31,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31ec315a5/034b64851271409a86068bdf1184bad8/FLAGe026f4c9e [2022-07-21 04:44:31,972 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 04:44:31,972 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec11_product37.cil.c [2022-07-21 04:44:32,000 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31ec315a5/034b64851271409a86068bdf1184bad8/FLAGe026f4c9e [2022-07-21 04:44:32,378 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31ec315a5/034b64851271409a86068bdf1184bad8 [2022-07-21 04:44:32,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 04:44:32,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 04:44:32,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 04:44:32,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 04:44:32,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 04:44:32,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:44:32" (1/1) ... [2022-07-21 04:44:32,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a62a2db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:32, skipping insertion in model container [2022-07-21 04:44:32,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:44:32" (1/1) ... [2022-07-21 04:44:32,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 04:44:32,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 04:44:32,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec11_product37.cil.c[43755,43768] [2022-07-21 04:44:33,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 04:44:33,019 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 04:44:33,110 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_spec11_product37.cil.c[43755,43768] [2022-07-21 04:44:33,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 04:44:33,170 INFO L208 MainTranslator]: Completed translation [2022-07-21 04:44:33,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:33 WrapperNode [2022-07-21 04:44:33,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 04:44:33,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 04:44:33,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 04:44:33,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 04:44:33,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:33" (1/1) ... [2022-07-21 04:44:33,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:33" (1/1) ... [2022-07-21 04:44:33,280 INFO L137 Inliner]: procedures = 124, calls = 186, calls flagged for inlining = 51, calls inlined = 46, statements flattened = 832 [2022-07-21 04:44:33,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 04:44:33,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 04:44:33,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 04:44:33,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 04:44:33,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:33" (1/1) ... [2022-07-21 04:44:33,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:33" (1/1) ... [2022-07-21 04:44:33,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:33" (1/1) ... [2022-07-21 04:44:33,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:33" (1/1) ... [2022-07-21 04:44:33,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:33" (1/1) ... [2022-07-21 04:44:33,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:33" (1/1) ... [2022-07-21 04:44:33,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:33" (1/1) ... [2022-07-21 04:44:33,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 04:44:33,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 04:44:33,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 04:44:33,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 04:44:33,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:33" (1/1) ... [2022-07-21 04:44:33,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 04:44:33,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:44:33,423 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) [2022-07-21 04:44:33,434 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 [2022-07-21 04:44:33,464 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-07-21 04:44:33,464 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-07-21 04:44:33,464 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-07-21 04:44:33,464 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-07-21 04:44:33,465 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-07-21 04:44:33,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-07-21 04:44:33,465 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-07-21 04:44:33,465 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-07-21 04:44:33,465 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-07-21 04:44:33,465 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-07-21 04:44:33,466 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-07-21 04:44:33,466 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-07-21 04:44:33,466 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-07-21 04:44:33,466 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-07-21 04:44:33,466 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-07-21 04:44:33,466 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-07-21 04:44:33,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-07-21 04:44:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 04:44:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-07-21 04:44:33,467 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-07-21 04:44:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-07-21 04:44:33,467 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-07-21 04:44:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-07-21 04:44:33,468 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-07-21 04:44:33,468 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-07-21 04:44:33,468 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-07-21 04:44:33,468 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-07-21 04:44:33,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-07-21 04:44:33,468 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-07-21 04:44:33,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-07-21 04:44:33,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 04:44:33,469 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-07-21 04:44:33,469 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-07-21 04:44:33,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 04:44:33,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 04:44:33,630 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 04:44:33,632 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 04:44:34,277 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 04:44:34,286 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 04:44:34,286 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 04:44:34,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:44:34 BoogieIcfgContainer [2022-07-21 04:44:34,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 04:44:34,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 04:44:34,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 04:44:34,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 04:44:34,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:44:32" (1/3) ... [2022-07-21 04:44:34,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0c5723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:44:34, skipping insertion in model container [2022-07-21 04:44:34,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:44:33" (2/3) ... [2022-07-21 04:44:34,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0c5723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:44:34, skipping insertion in model container [2022-07-21 04:44:34,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:44:34" (3/3) ... [2022-07-21 04:44:34,296 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec11_product37.cil.c [2022-07-21 04:44:34,309 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 04:44:34,309 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 04:44:34,356 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 04:44:34,363 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@1cd669d0, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@392dd947 [2022-07-21 04:44:34,363 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 04:44:34,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 258 states, 201 states have (on average 1.5223880597014925) internal successors, (306), 203 states have internal predecessors, (306), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-07-21 04:44:34,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-21 04:44:34,423 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:34,424 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-07-21 04:44:34,425 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:34,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:34,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1778421815, now seen corresponding path program 1 times [2022-07-21 04:44:34,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:34,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168336451] [2022-07-21 04:44:34,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:34,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:34,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:34,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:34,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:34,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 04:44:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:34,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:44:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:34,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:44:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:34,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 04:44:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:34,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 04:44:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:34,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 04:44:34,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:34,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 04:44:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:34,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 04:44:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:34,967 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-21 04:44:34,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:34,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168336451] [2022-07-21 04:44:34,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168336451] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:44:34,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93377828] [2022-07-21 04:44:34,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:34,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:44:34,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:44:34,976 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) [2022-07-21 04:44:34,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 04:44:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:35,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 04:44:35,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:44:35,283 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-21 04:44:35,284 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:44:35,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93377828] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:35,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:44:35,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-07-21 04:44:35,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616396975] [2022-07-21 04:44:35,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:35,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 04:44:35,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:35,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 04:44:35,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:44:35,327 INFO L87 Difference]: Start difference. First operand has 258 states, 201 states have (on average 1.5223880597014925) internal successors, (306), 203 states have internal predecessors, (306), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:44:35,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:35,381 INFO L93 Difference]: Finished difference Result 357 states and 518 transitions. [2022-07-21 04:44:35,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 04:44:35,385 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 87 [2022-07-21 04:44:35,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:35,396 INFO L225 Difference]: With dead ends: 357 [2022-07-21 04:44:35,398 INFO L226 Difference]: Without dead ends: 251 [2022-07-21 04:44:35,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:44:35,417 INFO L413 NwaCegarLoop]: 382 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, 382 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 [2022-07-21 04:44:35,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:44:35,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-07-21 04:44:35,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2022-07-21 04:44:35,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 195 states have (on average 1.5128205128205128) internal successors, (295), 196 states have internal predecessors, (295), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-07-21 04:44:35,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 374 transitions. [2022-07-21 04:44:35,475 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 374 transitions. Word has length 87 [2022-07-21 04:44:35,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:35,477 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 374 transitions. [2022-07-21 04:44:35,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:44:35,478 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 374 transitions. [2022-07-21 04:44:35,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-21 04:44:35,482 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:35,482 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-07-21 04:44:35,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-21 04:44:35,690 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 [2022-07-21 04:44:35,691 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:35,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:35,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1824099872, now seen corresponding path program 1 times [2022-07-21 04:44:35,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:35,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132047453] [2022-07-21 04:44:35,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:35,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:35,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:35,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:35,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:35,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:35,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 04:44:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:35,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:44:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:35,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:44:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:35,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 04:44:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:35,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:44:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:35,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 04:44:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:35,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-21 04:44:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:35,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 04:44:35,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:35,906 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-21 04:44:35,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:35,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132047453] [2022-07-21 04:44:35,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132047453] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:44:35,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500550572] [2022-07-21 04:44:35,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:35,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:44:35,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:44:35,909 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) [2022-07-21 04:44:35,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 04:44:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 04:44:36,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:44:36,189 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-21 04:44:36,190 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:44:36,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500550572] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:36,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:44:36,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-21 04:44:36,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491841002] [2022-07-21 04:44:36,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:36,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 04:44:36,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:36,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 04:44:36,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:44:36,194 INFO L87 Difference]: Start difference. First operand 251 states and 374 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:44:36,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:36,229 INFO L93 Difference]: Finished difference Result 347 states and 499 transitions. [2022-07-21 04:44:36,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 04:44:36,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 88 [2022-07-21 04:44:36,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:36,233 INFO L225 Difference]: With dead ends: 347 [2022-07-21 04:44:36,234 INFO L226 Difference]: Without dead ends: 254 [2022-07-21 04:44:36,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:44:36,236 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 1 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 742 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 [2022-07-21 04:44:36,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 742 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:44:36,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-07-21 04:44:36,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 253. [2022-07-21 04:44:36,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 197 states have (on average 1.5076142131979695) internal successors, (297), 198 states have internal predecessors, (297), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-07-21 04:44:36,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 376 transitions. [2022-07-21 04:44:36,259 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 376 transitions. Word has length 88 [2022-07-21 04:44:36,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:36,260 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 376 transitions. [2022-07-21 04:44:36,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:44:36,261 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 376 transitions. [2022-07-21 04:44:36,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-21 04:44:36,264 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:36,264 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-07-21 04:44:36,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 04:44:36,487 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 [2022-07-21 04:44:36,488 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:36,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:36,488 INFO L85 PathProgramCache]: Analyzing trace with hash -2103248094, now seen corresponding path program 1 times [2022-07-21 04:44:36,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:36,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625933442] [2022-07-21 04:44:36,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:36,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:36,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 04:44:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:44:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:44:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:44:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 04:44:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 04:44:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 04:44:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:44:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,659 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-21 04:44:36,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:36,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625933442] [2022-07-21 04:44:36,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625933442] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:44:36,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960606853] [2022-07-21 04:44:36,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:36,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:44:36,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:44:36,662 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) [2022-07-21 04:44:36,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 04:44:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:36,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 954 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 04:44:36,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:44:36,919 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-07-21 04:44:36,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:44:36,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960606853] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:36,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:44:36,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-07-21 04:44:36,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641799037] [2022-07-21 04:44:36,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:36,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 04:44:36,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:36,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 04:44:36,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:44:36,925 INFO L87 Difference]: Start difference. First operand 253 states and 376 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:44:36,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:36,964 INFO L93 Difference]: Finished difference Result 541 states and 819 transitions. [2022-07-21 04:44:36,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 04:44:36,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2022-07-21 04:44:36,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:36,968 INFO L225 Difference]: With dead ends: 541 [2022-07-21 04:44:36,969 INFO L226 Difference]: Without dead ends: 315 [2022-07-21 04:44:36,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:44:36,972 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 115 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:36,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 722 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:44:36,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-07-21 04:44:36,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 307. [2022-07-21 04:44:36,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 240 states have (on average 1.5291666666666666) internal successors, (367), 241 states have internal predecessors, (367), 51 states have call successors, (51), 15 states have call predecessors, (51), 15 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-07-21 04:44:36,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 468 transitions. [2022-07-21 04:44:36,996 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 468 transitions. Word has length 97 [2022-07-21 04:44:36,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:36,996 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 468 transitions. [2022-07-21 04:44:36,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:44:36,997 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 468 transitions. [2022-07-21 04:44:36,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 04:44:36,999 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:36,999 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-07-21 04:44:37,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-21 04:44:37,225 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 [2022-07-21 04:44:37,226 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:37,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:37,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1819301075, now seen corresponding path program 1 times [2022-07-21 04:44:37,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:37,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817793448] [2022-07-21 04:44:37,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:37,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:37,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:37,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:37,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:37,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:37,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 04:44:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:37,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:44:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:37,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:44:37,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:37,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-21 04:44:37,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:37,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 04:44:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:37,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 04:44:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:37,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 04:44:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:37,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 04:44:37,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:37,345 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-21 04:44:37,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:37,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817793448] [2022-07-21 04:44:37,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817793448] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:44:37,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709854314] [2022-07-21 04:44:37,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:37,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:44:37,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:44:37,348 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) [2022-07-21 04:44:37,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 04:44:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:37,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 04:44:37,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:44:37,668 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-21 04:44:37,668 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:44:37,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709854314] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:37,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:44:37,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-07-21 04:44:37,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298023314] [2022-07-21 04:44:37,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:37,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:44:37,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:37,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:44:37,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:44:37,671 INFO L87 Difference]: Start difference. First operand 307 states and 468 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 04:44:37,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:37,747 INFO L93 Difference]: Finished difference Result 605 states and 926 transitions. [2022-07-21 04:44:37,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:44:37,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 98 [2022-07-21 04:44:37,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:37,752 INFO L225 Difference]: With dead ends: 605 [2022-07-21 04:44:37,752 INFO L226 Difference]: Without dead ends: 309 [2022-07-21 04:44:37,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:44:37,755 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 133 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1307 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 [2022-07-21 04:44:37,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1307 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:44:37,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2022-07-21 04:44:37,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2022-07-21 04:44:37,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 241 states have (on average 1.5269709543568464) internal successors, (368), 243 states have internal predecessors, (368), 51 states have call successors, (51), 15 states have call predecessors, (51), 16 states have return successors, (52), 50 states have call predecessors, (52), 50 states have call successors, (52) [2022-07-21 04:44:37,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 471 transitions. [2022-07-21 04:44:37,794 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 471 transitions. Word has length 98 [2022-07-21 04:44:37,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:37,795 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 471 transitions. [2022-07-21 04:44:37,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 04:44:37,796 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 471 transitions. [2022-07-21 04:44:37,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 04:44:37,799 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:37,799 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-07-21 04:44:37,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 04:44:38,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:44:38,012 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:38,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:38,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1833333552, now seen corresponding path program 1 times [2022-07-21 04:44:38,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:38,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007450349] [2022-07-21 04:44:38,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:38,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:38,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:38,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-21 04:44:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 04:44:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 04:44:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 04:44:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 04:44:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 04:44:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 04:44:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,208 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:44:38,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:38,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007450349] [2022-07-21 04:44:38,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007450349] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:44:38,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582624904] [2022-07-21 04:44:38,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:38,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:44:38,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:44:38,211 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) [2022-07-21 04:44:38,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 04:44:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-21 04:44:38,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:44:38,479 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-21 04:44:38,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:44:38,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582624904] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:38,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:44:38,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-07-21 04:44:38,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086876525] [2022-07-21 04:44:38,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:38,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:44:38,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:38,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:44:38,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-07-21 04:44:38,482 INFO L87 Difference]: Start difference. First operand 309 states and 471 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 04:44:38,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:38,549 INFO L93 Difference]: Finished difference Result 607 states and 931 transitions. [2022-07-21 04:44:38,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:44:38,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 99 [2022-07-21 04:44:38,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:38,553 INFO L225 Difference]: With dead ends: 607 [2022-07-21 04:44:38,553 INFO L226 Difference]: Without dead ends: 311 [2022-07-21 04:44:38,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-07-21 04:44:38,556 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 132 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:38,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1296 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:44:38,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-07-21 04:44:38,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2022-07-21 04:44:38,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 242 states have (on average 1.524793388429752) internal successors, (369), 245 states have internal predecessors, (369), 51 states have call successors, (51), 15 states have call predecessors, (51), 17 states have return successors, (57), 50 states have call predecessors, (57), 50 states have call successors, (57) [2022-07-21 04:44:38,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 477 transitions. [2022-07-21 04:44:38,586 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 477 transitions. Word has length 99 [2022-07-21 04:44:38,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:38,587 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 477 transitions. [2022-07-21 04:44:38,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 04:44:38,587 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 477 transitions. [2022-07-21 04:44:38,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 04:44:38,589 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:38,590 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:44:38,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-21 04:44:38,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:44:38,810 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:38,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:38,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1735515559, now seen corresponding path program 1 times [2022-07-21 04:44:38,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:38,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177981071] [2022-07-21 04:44:38,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:38,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:38,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:38,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 04:44:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 04:44:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 04:44:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 04:44:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 04:44:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 04:44:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:38,944 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-21 04:44:38,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:38,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177981071] [2022-07-21 04:44:38,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177981071] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:38,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:38,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 04:44:38,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895785183] [2022-07-21 04:44:38,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:38,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 04:44:38,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:38,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 04:44:38,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:44:38,947 INFO L87 Difference]: Start difference. First operand 311 states and 477 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 04:44:40,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:40,363 INFO L93 Difference]: Finished difference Result 722 states and 1120 transitions. [2022-07-21 04:44:40,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 04:44:40,364 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 100 [2022-07-21 04:44:40,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:40,367 INFO L225 Difference]: With dead ends: 722 [2022-07-21 04:44:40,367 INFO L226 Difference]: Without dead ends: 434 [2022-07-21 04:44:40,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-21 04:44:40,369 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 799 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:40,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 1317 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 04:44:40,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-07-21 04:44:40,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 311. [2022-07-21 04:44:40,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 242 states have (on average 1.524793388429752) internal successors, (369), 245 states have internal predecessors, (369), 51 states have call successors, (51), 15 states have call predecessors, (51), 17 states have return successors, (56), 50 states have call predecessors, (56), 50 states have call successors, (56) [2022-07-21 04:44:40,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 476 transitions. [2022-07-21 04:44:40,395 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 476 transitions. Word has length 100 [2022-07-21 04:44:40,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:40,395 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 476 transitions. [2022-07-21 04:44:40,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 04:44:40,396 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 476 transitions. [2022-07-21 04:44:40,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 04:44:40,398 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:40,398 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2022-07-21 04:44:40,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 04:44:40,398 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:40,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:40,399 INFO L85 PathProgramCache]: Analyzing trace with hash 2005228972, now seen corresponding path program 2 times [2022-07-21 04:44:40,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:40,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994230105] [2022-07-21 04:44:40,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:40,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:40,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:40,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:40,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:40,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:40,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:40,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:40,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:44:40,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:40,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:44:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:40,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 04:44:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:40,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:44:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:40,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 04:44:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:40,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 04:44:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:40,502 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-21 04:44:40,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:40,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994230105] [2022-07-21 04:44:40,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994230105] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:40,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:40,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 04:44:40,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264479237] [2022-07-21 04:44:40,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:40,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 04:44:40,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:40,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 04:44:40,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:44:40,504 INFO L87 Difference]: Start difference. First operand 311 states and 476 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 04:44:41,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:41,838 INFO L93 Difference]: Finished difference Result 724 states and 1123 transitions. [2022-07-21 04:44:41,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 04:44:41,839 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2022-07-21 04:44:41,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:41,842 INFO L225 Difference]: With dead ends: 724 [2022-07-21 04:44:41,842 INFO L226 Difference]: Without dead ends: 436 [2022-07-21 04:44:41,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-21 04:44:41,844 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 795 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 1502 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 1835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 1502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:41,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 1316 Invalid, 1835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 1502 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-21 04:44:41,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-07-21 04:44:41,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 313. [2022-07-21 04:44:41,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 243 states have (on average 1.522633744855967) internal successors, (370), 247 states have internal predecessors, (370), 51 states have call successors, (51), 15 states have call predecessors, (51), 18 states have return successors, (58), 50 states have call predecessors, (58), 50 states have call successors, (58) [2022-07-21 04:44:41,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 479 transitions. [2022-07-21 04:44:41,872 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 479 transitions. Word has length 101 [2022-07-21 04:44:41,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:41,873 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 479 transitions. [2022-07-21 04:44:41,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 04:44:41,873 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 479 transitions. [2022-07-21 04:44:41,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-21 04:44:41,875 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:41,876 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:44:41,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 04:44:41,876 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:41,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:41,877 INFO L85 PathProgramCache]: Analyzing trace with hash 2093975266, now seen corresponding path program 1 times [2022-07-21 04:44:41,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:41,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415485281] [2022-07-21 04:44:41,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:41,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:41,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:41,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:41,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-21 04:44:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:42,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:44:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:42,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:44:42,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:42,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 04:44:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:42,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-21 04:44:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:42,022 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:44:42,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:42,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415485281] [2022-07-21 04:44:42,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415485281] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:42,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:42,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 04:44:42,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154814728] [2022-07-21 04:44:42,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:42,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 04:44:42,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:42,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 04:44:42,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:44:42,024 INFO L87 Difference]: Start difference. First operand 313 states and 479 transitions. Second operand has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-21 04:44:43,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:43,713 INFO L93 Difference]: Finished difference Result 722 states and 1118 transitions. [2022-07-21 04:44:43,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 04:44:43,717 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 102 [2022-07-21 04:44:43,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:43,720 INFO L225 Difference]: With dead ends: 722 [2022-07-21 04:44:43,720 INFO L226 Difference]: Without dead ends: 436 [2022-07-21 04:44:43,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-07-21 04:44:43,722 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 914 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 2650 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 3035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 2650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:43,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [914 Valid, 1630 Invalid, 3035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 2650 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 04:44:43,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-07-21 04:44:43,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 313. [2022-07-21 04:44:43,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 243 states have (on average 1.522633744855967) internal successors, (370), 247 states have internal predecessors, (370), 51 states have call successors, (51), 15 states have call predecessors, (51), 18 states have return successors, (57), 50 states have call predecessors, (57), 50 states have call successors, (57) [2022-07-21 04:44:43,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 478 transitions. [2022-07-21 04:44:43,747 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 478 transitions. Word has length 102 [2022-07-21 04:44:43,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:43,747 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 478 transitions. [2022-07-21 04:44:43,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-21 04:44:43,748 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 478 transitions. [2022-07-21 04:44:43,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-21 04:44:43,750 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:43,750 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:44:43,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 04:44:43,750 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:43,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:43,751 INFO L85 PathProgramCache]: Analyzing trace with hash 796053935, now seen corresponding path program 2 times [2022-07-21 04:44:43,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:43,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964569430] [2022-07-21 04:44:43,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:43,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:43,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:43,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:43,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:43,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:43,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:43,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:43,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 04:44:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:43,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 04:44:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:43,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 04:44:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:43,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 04:44:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:43,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 04:44:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:43,894 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:44:43,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:43,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964569430] [2022-07-21 04:44:43,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964569430] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:43,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:43,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 04:44:43,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690071754] [2022-07-21 04:44:43,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:43,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 04:44:43,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:43,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 04:44:43,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:44:43,896 INFO L87 Difference]: Start difference. First operand 313 states and 478 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-21 04:44:45,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:45,617 INFO L93 Difference]: Finished difference Result 724 states and 1124 transitions. [2022-07-21 04:44:45,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 04:44:45,618 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 103 [2022-07-21 04:44:45,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:45,621 INFO L225 Difference]: With dead ends: 724 [2022-07-21 04:44:45,621 INFO L226 Difference]: Without dead ends: 438 [2022-07-21 04:44:45,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-07-21 04:44:45,623 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 909 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 2683 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 3063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 2683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:45,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [909 Valid, 1631 Invalid, 3063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 2683 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-21 04:44:45,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2022-07-21 04:44:45,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 315. [2022-07-21 04:44:45,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 244 states have (on average 1.5204918032786885) internal successors, (371), 249 states have internal predecessors, (371), 51 states have call successors, (51), 15 states have call predecessors, (51), 19 states have return successors, (62), 50 states have call predecessors, (62), 50 states have call successors, (62) [2022-07-21 04:44:45,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 484 transitions. [2022-07-21 04:44:45,645 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 484 transitions. Word has length 103 [2022-07-21 04:44:45,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:45,646 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 484 transitions. [2022-07-21 04:44:45,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-21 04:44:45,646 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 484 transitions. [2022-07-21 04:44:45,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-21 04:44:45,648 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:45,648 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:44:45,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 04:44:45,648 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:45,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:45,649 INFO L85 PathProgramCache]: Analyzing trace with hash -280241827, now seen corresponding path program 1 times [2022-07-21 04:44:45,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:45,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111852915] [2022-07-21 04:44:45,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:45,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 04:44:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 04:44:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 04:44:45,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 04:44:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 04:44:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,770 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-21 04:44:45,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:45,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111852915] [2022-07-21 04:44:45,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111852915] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:44:45,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622161215] [2022-07-21 04:44:45,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:45,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:44:45,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:44:45,772 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) [2022-07-21 04:44:45,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-21 04:44:45,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:45,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 04:44:45,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:44:46,055 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-21 04:44:46,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 04:44:46,136 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-21 04:44:46,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622161215] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 04:44:46,136 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 04:44:46,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-07-21 04:44:46,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70082750] [2022-07-21 04:44:46,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 04:44:46,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-21 04:44:46,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:46,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-21 04:44:46,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-21 04:44:46,141 INFO L87 Difference]: Start difference. First operand 315 states and 484 transitions. Second operand has 15 states, 14 states have (on average 8.357142857142858) internal successors, (117), 11 states have internal predecessors, (117), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2022-07-21 04:44:49,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:49,049 INFO L93 Difference]: Finished difference Result 1453 states and 2432 transitions. [2022-07-21 04:44:49,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-21 04:44:49,049 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.357142857142858) internal successors, (117), 11 states have internal predecessors, (117), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) Word has length 104 [2022-07-21 04:44:49,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:49,057 INFO L225 Difference]: With dead ends: 1453 [2022-07-21 04:44:49,057 INFO L226 Difference]: Without dead ends: 1169 [2022-07-21 04:44:49,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-07-21 04:44:49,061 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 2871 mSDsluCounter, 2993 mSDsCounter, 0 mSdLazyCounter, 3806 mSolverCounterSat, 1176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2873 SdHoareTripleChecker+Valid, 3650 SdHoareTripleChecker+Invalid, 4982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1176 IncrementalHoareTripleChecker+Valid, 3806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:49,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2873 Valid, 3650 Invalid, 4982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1176 Valid, 3806 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-21 04:44:49,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2022-07-21 04:44:49,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 668. [2022-07-21 04:44:49,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 533 states have (on average 1.5797373358348967) internal successors, (842), 538 states have internal predecessors, (842), 115 states have call successors, (115), 15 states have call predecessors, (115), 19 states have return successors, (136), 114 states have call predecessors, (136), 114 states have call successors, (136) [2022-07-21 04:44:49,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1093 transitions. [2022-07-21 04:44:49,141 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1093 transitions. Word has length 104 [2022-07-21 04:44:49,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:49,142 INFO L495 AbstractCegarLoop]: Abstraction has 668 states and 1093 transitions. [2022-07-21 04:44:49,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.357142857142858) internal successors, (117), 11 states have internal predecessors, (117), 4 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (20), 3 states have call predecessors, (20), 4 states have call successors, (20) [2022-07-21 04:44:49,142 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1093 transitions. [2022-07-21 04:44:49,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-21 04:44:49,146 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:49,146 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-07-21 04:44:49,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-21 04:44:49,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:44:49,372 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:49,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:49,372 INFO L85 PathProgramCache]: Analyzing trace with hash 110933035, now seen corresponding path program 1 times [2022-07-21 04:44:49,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:49,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014413171] [2022-07-21 04:44:49,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:49,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:49,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:49,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:49,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:49,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:49,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:49,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:49,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:49,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 04:44:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:49,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 04:44:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:49,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 04:44:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:49,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 04:44:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:49,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 04:44:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:49,498 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-21 04:44:49,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:49,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014413171] [2022-07-21 04:44:49,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014413171] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:49,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:49,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:49,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062354841] [2022-07-21 04:44:49,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:49,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:49,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:49,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:49,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:49,501 INFO L87 Difference]: Start difference. First operand 668 states and 1093 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:44:50,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:50,578 INFO L93 Difference]: Finished difference Result 1714 states and 2875 transitions. [2022-07-21 04:44:50,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:50,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2022-07-21 04:44:50,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:50,584 INFO L225 Difference]: With dead ends: 1714 [2022-07-21 04:44:50,585 INFO L226 Difference]: Without dead ends: 1124 [2022-07-21 04:44:50,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:44:50,588 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 790 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:50,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 1162 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 846 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 04:44:50,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2022-07-21 04:44:50,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 993. [2022-07-21 04:44:50,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 794 states have (on average 1.5957178841309825) internal successors, (1267), 799 states have internal predecessors, (1267), 179 states have call successors, (179), 15 states have call predecessors, (179), 19 states have return successors, (210), 178 states have call predecessors, (210), 178 states have call successors, (210) [2022-07-21 04:44:50,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1656 transitions. [2022-07-21 04:44:50,664 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1656 transitions. Word has length 107 [2022-07-21 04:44:50,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:50,665 INFO L495 AbstractCegarLoop]: Abstraction has 993 states and 1656 transitions. [2022-07-21 04:44:50,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:44:50,665 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1656 transitions. [2022-07-21 04:44:50,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-21 04:44:50,670 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:50,670 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-07-21 04:44:50,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 04:44:50,670 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:50,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:50,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1931200409, now seen corresponding path program 1 times [2022-07-21 04:44:50,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:50,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173073435] [2022-07-21 04:44:50,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:50,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:50,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 04:44:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 04:44:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-21 04:44:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:44:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 04:44:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:50,776 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-21 04:44:50,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:50,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173073435] [2022-07-21 04:44:50,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173073435] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:50,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:50,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:50,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411683745] [2022-07-21 04:44:50,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:50,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:50,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:50,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:50,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:50,778 INFO L87 Difference]: Start difference. First operand 993 states and 1656 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:44:51,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:51,898 INFO L93 Difference]: Finished difference Result 2519 states and 4259 transitions. [2022-07-21 04:44:51,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:51,898 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2022-07-21 04:44:51,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:51,908 INFO L225 Difference]: With dead ends: 2519 [2022-07-21 04:44:51,909 INFO L226 Difference]: Without dead ends: 1657 [2022-07-21 04:44:51,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:44:51,913 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 789 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:51,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 1151 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 04:44:51,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2022-07-21 04:44:52,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1526. [2022-07-21 04:44:52,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1232 states have (on average 1.6014610389610389) internal successors, (1973), 1237 states have internal predecessors, (1973), 274 states have call successors, (274), 15 states have call predecessors, (274), 19 states have return successors, (305), 273 states have call predecessors, (305), 273 states have call successors, (305) [2022-07-21 04:44:52,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 2552 transitions. [2022-07-21 04:44:52,050 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 2552 transitions. Word has length 108 [2022-07-21 04:44:52,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:52,051 INFO L495 AbstractCegarLoop]: Abstraction has 1526 states and 2552 transitions. [2022-07-21 04:44:52,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:44:52,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 2552 transitions. [2022-07-21 04:44:52,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-07-21 04:44:52,057 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:52,058 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-07-21 04:44:52,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 04:44:52,058 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:52,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:52,059 INFO L85 PathProgramCache]: Analyzing trace with hash -997062983, now seen corresponding path program 1 times [2022-07-21 04:44:52,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:52,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349341378] [2022-07-21 04:44:52,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:52,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:52,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:52,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:52,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:52,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:52,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:52,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:52,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 04:44:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:52,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 04:44:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:52,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 04:44:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:52,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 04:44:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:52,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:44:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:52,138 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-21 04:44:52,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:52,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349341378] [2022-07-21 04:44:52,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349341378] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:52,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:52,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:52,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809124545] [2022-07-21 04:44:52,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:52,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:52,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:52,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:52,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:52,141 INFO L87 Difference]: Start difference. First operand 1526 states and 2552 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:44:53,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:53,177 INFO L93 Difference]: Finished difference Result 3726 states and 6345 transitions. [2022-07-21 04:44:53,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:53,177 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2022-07-21 04:44:53,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:53,194 INFO L225 Difference]: With dead ends: 3726 [2022-07-21 04:44:53,194 INFO L226 Difference]: Without dead ends: 2466 [2022-07-21 04:44:53,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:44:53,202 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 785 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:53,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 1147 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 04:44:53,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2466 states. [2022-07-21 04:44:53,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2466 to 2335. [2022-07-21 04:44:53,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 1918 states have (on average 1.6058394160583942) internal successors, (3080), 1923 states have internal predecessors, (3080), 397 states have call successors, (397), 15 states have call predecessors, (397), 19 states have return successors, (444), 396 states have call predecessors, (444), 396 states have call successors, (444) [2022-07-21 04:44:53,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 3921 transitions. [2022-07-21 04:44:53,395 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 3921 transitions. Word has length 109 [2022-07-21 04:44:53,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:53,395 INFO L495 AbstractCegarLoop]: Abstraction has 2335 states and 3921 transitions. [2022-07-21 04:44:53,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:44:53,396 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 3921 transitions. [2022-07-21 04:44:53,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-21 04:44:53,403 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:53,404 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-07-21 04:44:53,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 04:44:53,404 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:53,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:53,405 INFO L85 PathProgramCache]: Analyzing trace with hash 699673466, now seen corresponding path program 1 times [2022-07-21 04:44:53,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:53,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214727055] [2022-07-21 04:44:53,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:53,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:53,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:53,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:53,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:53,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:53,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:53,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:53,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:53,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:53,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-21 04:44:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:53,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 04:44:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:53,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 04:44:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:53,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 04:44:53,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:53,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 04:44:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:53,519 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-21 04:44:53,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:53,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214727055] [2022-07-21 04:44:53,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214727055] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:53,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:53,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:53,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17204286] [2022-07-21 04:44:53,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:53,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:53,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:53,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:53,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:53,522 INFO L87 Difference]: Start difference. First operand 2335 states and 3921 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:44:54,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:54,531 INFO L93 Difference]: Finished difference Result 5610 states and 9605 transitions. [2022-07-21 04:44:54,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:54,532 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2022-07-21 04:44:54,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:54,551 INFO L225 Difference]: With dead ends: 5610 [2022-07-21 04:44:54,552 INFO L226 Difference]: Without dead ends: 3760 [2022-07-21 04:44:54,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:44:54,559 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 785 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 1193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:54,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 1145 Invalid, 1193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 04:44:54,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3760 states. [2022-07-21 04:44:54,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3760 to 3629. [2022-07-21 04:44:54,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3629 states, 3033 states have (on average 1.6083086053412463) internal successors, (4878), 3038 states have internal predecessors, (4878), 576 states have call successors, (576), 15 states have call predecessors, (576), 19 states have return successors, (649), 575 states have call predecessors, (649), 575 states have call successors, (649) [2022-07-21 04:44:54,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3629 states to 3629 states and 6103 transitions. [2022-07-21 04:44:54,835 INFO L78 Accepts]: Start accepts. Automaton has 3629 states and 6103 transitions. Word has length 110 [2022-07-21 04:44:54,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:54,836 INFO L495 AbstractCegarLoop]: Abstraction has 3629 states and 6103 transitions. [2022-07-21 04:44:54,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:44:54,836 INFO L276 IsEmpty]: Start isEmpty. Operand 3629 states and 6103 transitions. [2022-07-21 04:44:54,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-21 04:44:54,845 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:54,845 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-07-21 04:44:54,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 04:44:54,846 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:54,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:54,846 INFO L85 PathProgramCache]: Analyzing trace with hash -293605899, now seen corresponding path program 1 times [2022-07-21 04:44:54,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:54,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464598073] [2022-07-21 04:44:54,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:54,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:54,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:54,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:54,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:54,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:54,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:54,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:54,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-21 04:44:54,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:54,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 04:44:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:54,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 04:44:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:54,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 04:44:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:54,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 04:44:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:54,930 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-21 04:44:54,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:54,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464598073] [2022-07-21 04:44:54,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464598073] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:54,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:54,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:54,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468674186] [2022-07-21 04:44:54,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:54,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:54,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:54,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:54,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:54,933 INFO L87 Difference]: Start difference. First operand 3629 states and 6103 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:44:56,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:56,024 INFO L93 Difference]: Finished difference Result 8713 states and 14969 transitions. [2022-07-21 04:44:56,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:56,025 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2022-07-21 04:44:56,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:56,059 INFO L225 Difference]: With dead ends: 8713 [2022-07-21 04:44:56,060 INFO L226 Difference]: Without dead ends: 5901 [2022-07-21 04:44:56,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:44:56,072 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 783 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:56,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 1169 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 04:44:56,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5901 states. [2022-07-21 04:44:56,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5901 to 5770. [2022-07-21 04:44:56,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5770 states, 4798 states have (on average 1.6015006252605253) internal successors, (7684), 4803 states have internal predecessors, (7684), 952 states have call successors, (952), 15 states have call predecessors, (952), 19 states have return successors, (1069), 951 states have call predecessors, (1069), 951 states have call successors, (1069) [2022-07-21 04:44:56,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5770 states to 5770 states and 9705 transitions. [2022-07-21 04:44:56,573 INFO L78 Accepts]: Start accepts. Automaton has 5770 states and 9705 transitions. Word has length 111 [2022-07-21 04:44:56,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:56,573 INFO L495 AbstractCegarLoop]: Abstraction has 5770 states and 9705 transitions. [2022-07-21 04:44:56,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:44:56,575 INFO L276 IsEmpty]: Start isEmpty. Operand 5770 states and 9705 transitions. [2022-07-21 04:44:56,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-21 04:44:56,586 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:56,587 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-07-21 04:44:56,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 04:44:56,587 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:56,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:56,588 INFO L85 PathProgramCache]: Analyzing trace with hash 298768446, now seen corresponding path program 1 times [2022-07-21 04:44:56,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:56,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151140459] [2022-07-21 04:44:56,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:56,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:56,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:56,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:56,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:56,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:56,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:56,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:56,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 04:44:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:56,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:44:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:56,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-21 04:44:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:56,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-21 04:44:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:56,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-21 04:44:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:56,693 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-21 04:44:56,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:56,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151140459] [2022-07-21 04:44:56,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151140459] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:56,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:56,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:56,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669669732] [2022-07-21 04:44:56,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:56,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:56,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:56,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:56,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:56,696 INFO L87 Difference]: Start difference. First operand 5770 states and 9705 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:44:57,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:44:57,998 INFO L93 Difference]: Finished difference Result 14330 states and 24582 transitions. [2022-07-21 04:44:57,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:44:57,998 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2022-07-21 04:44:57,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:44:58,047 INFO L225 Difference]: With dead ends: 14330 [2022-07-21 04:44:58,048 INFO L226 Difference]: Without dead ends: 9779 [2022-07-21 04:44:58,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:44:58,067 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 782 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 04:44:58,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 1144 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 04:44:58,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9779 states. [2022-07-21 04:44:58,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9779 to 9648. [2022-07-21 04:44:58,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9648 states, 8070 states have (on average 1.5988847583643122) internal successors, (12903), 8075 states have internal predecessors, (12903), 1558 states have call successors, (1558), 15 states have call predecessors, (1558), 19 states have return successors, (1753), 1557 states have call predecessors, (1753), 1557 states have call successors, (1753) [2022-07-21 04:44:58,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9648 states to 9648 states and 16214 transitions. [2022-07-21 04:44:58,842 INFO L78 Accepts]: Start accepts. Automaton has 9648 states and 16214 transitions. Word has length 112 [2022-07-21 04:44:58,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:44:58,843 INFO L495 AbstractCegarLoop]: Abstraction has 9648 states and 16214 transitions. [2022-07-21 04:44:58,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:44:58,843 INFO L276 IsEmpty]: Start isEmpty. Operand 9648 states and 16214 transitions. [2022-07-21 04:44:58,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-21 04:44:58,857 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:44:58,857 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-07-21 04:44:58,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 04:44:58,858 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:44:58,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:44:58,858 INFO L85 PathProgramCache]: Analyzing trace with hash 374256355, now seen corresponding path program 1 times [2022-07-21 04:44:58,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:44:58,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198576662] [2022-07-21 04:44:58,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:44:58,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:44:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:58,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:44:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:58,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:44:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:58,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:44:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:58,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:44:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:58,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:44:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:58,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:44:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:58,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 04:44:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:58,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 04:44:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:58,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 04:44:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:58,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-21 04:44:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:58,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-21 04:44:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:44:58,953 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-21 04:44:58,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:44:58,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198576662] [2022-07-21 04:44:58,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198576662] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:44:58,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:44:58,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:44:58,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804083620] [2022-07-21 04:44:58,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:44:58,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:44:58,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:44:58,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:44:58,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:44:58,957 INFO L87 Difference]: Start difference. First operand 9648 states and 16214 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:45:00,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:45:00,584 INFO L93 Difference]: Finished difference Result 25039 states and 42863 transitions. [2022-07-21 04:45:00,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:45:00,585 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 113 [2022-07-21 04:45:00,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:45:00,651 INFO L225 Difference]: With dead ends: 25039 [2022-07-21 04:45:00,652 INFO L226 Difference]: Without dead ends: 17092 [2022-07-21 04:45:00,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:45:00,684 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 777 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 04:45:00,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 1197 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 04:45:00,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17092 states. [2022-07-21 04:45:01,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17092 to 16961. [2022-07-21 04:45:01,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16961 states, 14180 states have (on average 1.5901974612129761) internal successors, (22549), 14185 states have internal predecessors, (22549), 2761 states have call successors, (2761), 15 states have call predecessors, (2761), 19 states have return successors, (3100), 2760 states have call predecessors, (3100), 2760 states have call successors, (3100) [2022-07-21 04:45:01,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16961 states to 16961 states and 28410 transitions. [2022-07-21 04:45:01,891 INFO L78 Accepts]: Start accepts. Automaton has 16961 states and 28410 transitions. Word has length 113 [2022-07-21 04:45:01,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:45:01,892 INFO L495 AbstractCegarLoop]: Abstraction has 16961 states and 28410 transitions. [2022-07-21 04:45:01,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:45:01,892 INFO L276 IsEmpty]: Start isEmpty. Operand 16961 states and 28410 transitions. [2022-07-21 04:45:01,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-21 04:45:01,910 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:45:01,910 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-07-21 04:45:01,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 04:45:01,911 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:45:01,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:45:01,911 INFO L85 PathProgramCache]: Analyzing trace with hash -791689921, now seen corresponding path program 1 times [2022-07-21 04:45:01,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:45:01,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941680063] [2022-07-21 04:45:01,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:45:01,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:45:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:01,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:45:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:01,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:45:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:01,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:45:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:01,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:45:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:01,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:45:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:01,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:45:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:01,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 04:45:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:01,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 04:45:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:01,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 04:45:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:01,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 04:45:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:01,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-21 04:45:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:01,995 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-21 04:45:01,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:45:01,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941680063] [2022-07-21 04:45:01,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941680063] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:45:01,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:45:01,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:45:01,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541062613] [2022-07-21 04:45:01,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:45:01,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:45:01,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:45:01,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:45:01,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:45:01,999 INFO L87 Difference]: Start difference. First operand 16961 states and 28410 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:45:04,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:45:04,287 INFO L93 Difference]: Finished difference Result 45015 states and 76876 transitions. [2022-07-21 04:45:04,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:45:04,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 114 [2022-07-21 04:45:04,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:45:04,417 INFO L225 Difference]: With dead ends: 45015 [2022-07-21 04:45:04,417 INFO L226 Difference]: Without dead ends: 30432 [2022-07-21 04:45:04,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:45:04,464 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 777 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1149 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 04:45:04,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1149 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 04:45:04,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30432 states. [2022-07-21 04:45:06,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30432 to 30301. [2022-07-21 04:45:06,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30301 states, 25481 states have (on average 1.5859660138927043) internal successors, (40412), 25486 states have internal predecessors, (40412), 4800 states have call successors, (4800), 15 states have call predecessors, (4800), 19 states have return successors, (5413), 4799 states have call predecessors, (5413), 4799 states have call successors, (5413) [2022-07-21 04:45:06,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30301 states to 30301 states and 50625 transitions. [2022-07-21 04:45:06,393 INFO L78 Accepts]: Start accepts. Automaton has 30301 states and 50625 transitions. Word has length 114 [2022-07-21 04:45:06,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:45:06,394 INFO L495 AbstractCegarLoop]: Abstraction has 30301 states and 50625 transitions. [2022-07-21 04:45:06,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:45:06,394 INFO L276 IsEmpty]: Start isEmpty. Operand 30301 states and 50625 transitions. [2022-07-21 04:45:06,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-21 04:45:06,414 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:45:06,414 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:45:06,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 04:45:06,415 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:45:06,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:45:06,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1052143685, now seen corresponding path program 1 times [2022-07-21 04:45:06,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:45:06,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31325765] [2022-07-21 04:45:06,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:45:06,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:45:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:06,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:45:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:06,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:45:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:06,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:45:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:06,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:45:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:06,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:45:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:06,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:45:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:06,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-21 04:45:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:06,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 04:45:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:06,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-21 04:45:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:06,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 04:45:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:06,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 04:45:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:06,522 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-21 04:45:06,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:45:06,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31325765] [2022-07-21 04:45:06,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31325765] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:45:06,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:45:06,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:45:06,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597766094] [2022-07-21 04:45:06,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:45:06,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:45:06,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:45:06,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:45:06,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:45:06,525 INFO L87 Difference]: Start difference. First operand 30301 states and 50625 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:45:09,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:45:09,855 INFO L93 Difference]: Finished difference Result 82752 states and 140400 transitions. [2022-07-21 04:45:09,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:45:09,856 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 115 [2022-07-21 04:45:09,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:45:10,128 INFO L225 Difference]: With dead ends: 82752 [2022-07-21 04:45:10,129 INFO L226 Difference]: Without dead ends: 55641 [2022-07-21 04:45:10,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:45:10,226 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 774 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 04:45:10,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 1151 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 04:45:10,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55641 states. [2022-07-21 04:45:13,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55641 to 55510. [2022-07-21 04:45:13,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55510 states, 46975 states have (on average 1.580478978179883) internal successors, (74243), 46980 states have internal predecessors, (74243), 8515 states have call successors, (8515), 15 states have call predecessors, (8515), 19 states have return successors, (9660), 8514 states have call predecessors, (9660), 8514 states have call successors, (9660) [2022-07-21 04:45:13,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55510 states to 55510 states and 92418 transitions. [2022-07-21 04:45:13,500 INFO L78 Accepts]: Start accepts. Automaton has 55510 states and 92418 transitions. Word has length 115 [2022-07-21 04:45:13,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:45:13,501 INFO L495 AbstractCegarLoop]: Abstraction has 55510 states and 92418 transitions. [2022-07-21 04:45:13,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:45:13,501 INFO L276 IsEmpty]: Start isEmpty. Operand 55510 states and 92418 transitions. [2022-07-21 04:45:13,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-21 04:45:13,521 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:45:13,521 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:45:13,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 04:45:13,522 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:45:13,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:45:13,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1724726367, now seen corresponding path program 1 times [2022-07-21 04:45:13,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:45:13,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446751695] [2022-07-21 04:45:13,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:45:13,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:45:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:45:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:45:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:45:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:45:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:45:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:45:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-21 04:45:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 04:45:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 04:45:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 04:45:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 04:45:13,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:13,600 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-21 04:45:13,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:45:13,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446751695] [2022-07-21 04:45:13,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446751695] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:45:13,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:45:13,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:45:13,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122142617] [2022-07-21 04:45:13,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:45:13,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:45:13,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:45:13,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:45:13,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:45:13,602 INFO L87 Difference]: Start difference. First operand 55510 states and 92418 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:45:18,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:45:18,642 INFO L93 Difference]: Finished difference Result 103808 states and 176386 transitions. [2022-07-21 04:45:18,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:45:18,643 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 116 [2022-07-21 04:45:18,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:45:19,259 INFO L225 Difference]: With dead ends: 103808 [2022-07-21 04:45:19,259 INFO L226 Difference]: Without dead ends: 103715 [2022-07-21 04:45:19,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-07-21 04:45:19,304 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 773 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 04:45:19,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 1151 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 04:45:19,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103715 states. [2022-07-21 04:45:24,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103715 to 103584. [2022-07-21 04:45:24,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103584 states, 88250 states have (on average 1.573643059490085) internal successors, (138874), 88255 states have internal predecessors, (138874), 15314 states have call successors, (15314), 15 states have call predecessors, (15314), 19 states have return successors, (17505), 15313 states have call predecessors, (17505), 15313 states have call successors, (17505) [2022-07-21 04:45:25,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103584 states to 103584 states and 171693 transitions. [2022-07-21 04:45:25,007 INFO L78 Accepts]: Start accepts. Automaton has 103584 states and 171693 transitions. Word has length 116 [2022-07-21 04:45:25,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:45:25,007 INFO L495 AbstractCegarLoop]: Abstraction has 103584 states and 171693 transitions. [2022-07-21 04:45:25,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 04:45:25,007 INFO L276 IsEmpty]: Start isEmpty. Operand 103584 states and 171693 transitions. [2022-07-21 04:45:25,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-21 04:45:25,025 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:45:25,025 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:45:25,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-21 04:45:25,025 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:45:25,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:45:25,026 INFO L85 PathProgramCache]: Analyzing trace with hash 726867652, now seen corresponding path program 1 times [2022-07-21 04:45:25,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:45:25,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568828053] [2022-07-21 04:45:25,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:45:25,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:45:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:25,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:45:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:25,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:45:25,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:25,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:45:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:25,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:45:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:25,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:45:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:25,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:45:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:25,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:45:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:25,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 04:45:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:25,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 04:45:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:25,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 04:45:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:25,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 04:45:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:25,554 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-21 04:45:25,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:45:25,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568828053] [2022-07-21 04:45:25,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568828053] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:45:25,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026440169] [2022-07-21 04:45:25,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:45:25,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:45:25,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:45:25,560 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 04:45:25,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-21 04:45:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:25,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-21 04:45:25,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:45:26,049 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-21 04:45:26,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:45:26,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026440169] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:45:26,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:45:26,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [19] total 29 [2022-07-21 04:45:26,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411377982] [2022-07-21 04:45:26,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:45:26,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 04:45:26,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:45:26,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 04:45:26,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=744, Unknown=0, NotChecked=0, Total=812 [2022-07-21 04:45:26,051 INFO L87 Difference]: Start difference. First operand 103584 states and 171693 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 10 states have internal predecessors, (87), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2022-07-21 04:45:30,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:45:30,965 INFO L93 Difference]: Finished difference Result 103924 states and 172164 transitions. [2022-07-21 04:45:30,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 04:45:30,966 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 10 states have internal predecessors, (87), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 117 [2022-07-21 04:45:30,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:45:31,386 INFO L225 Difference]: With dead ends: 103924 [2022-07-21 04:45:31,386 INFO L226 Difference]: Without dead ends: 103837 [2022-07-21 04:45:31,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=197, Invalid=1609, Unknown=0, NotChecked=0, Total=1806 [2022-07-21 04:45:31,431 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 737 mSDsluCounter, 3414 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 3834 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 04:45:31,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 3834 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 04:45:31,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103837 states. [2022-07-21 04:45:36,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103837 to 103734. [2022-07-21 04:45:36,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103734 states, 88364 states have (on average 1.5733669820288805) internal successors, (139029), 88370 states have internal predecessors, (139029), 15338 states have call successors, (15338), 24 states have call predecessors, (15338), 31 states have return successors, (17537), 15339 states have call predecessors, (17537), 15336 states have call successors, (17537) [2022-07-21 04:45:37,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103734 states to 103734 states and 171904 transitions. [2022-07-21 04:45:37,256 INFO L78 Accepts]: Start accepts. Automaton has 103734 states and 171904 transitions. Word has length 117 [2022-07-21 04:45:37,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:45:37,257 INFO L495 AbstractCegarLoop]: Abstraction has 103734 states and 171904 transitions. [2022-07-21 04:45:37,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 10 states have internal predecessors, (87), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2022-07-21 04:45:37,257 INFO L276 IsEmpty]: Start isEmpty. Operand 103734 states and 171904 transitions. [2022-07-21 04:45:37,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-21 04:45:37,273 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:45:37,274 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:45:37,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-21 04:45:37,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:45:37,500 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:45:37,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:45:37,500 INFO L85 PathProgramCache]: Analyzing trace with hash 2131257369, now seen corresponding path program 1 times [2022-07-21 04:45:37,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:45:37,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246657047] [2022-07-21 04:45:37,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:45:37,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:45:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:37,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 04:45:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:37,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:45:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:37,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 04:45:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:37,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:45:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:37,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:45:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:37,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 04:45:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:37,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:45:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:37,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-21 04:45:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:37,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 04:45:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:37,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 04:45:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:37,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 04:45:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:45:37,937 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-21 04:45:37,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:45:37,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246657047] [2022-07-21 04:45:37,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246657047] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:45:37,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:45:37,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 04:45:37,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596463669] [2022-07-21 04:45:37,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:45:37,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 04:45:37,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:45:37,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 04:45:37,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:45:37,940 INFO L87 Difference]: Start difference. First operand 103734 states and 171904 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11)