./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec2_product09.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec2_product09.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4cb164e6307f0ddcae5850d7f4578967441d1456f6ed5a5be472ba090758b873 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 05:42:50,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 05:42:50,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 05:42:50,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 05:42:50,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 05:42:50,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 05:42:50,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 05:42:50,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 05:42:50,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 05:42:50,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 05:42:50,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 05:42:50,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 05:42:50,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 05:42:50,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 05:42:50,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 05:42:50,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 05:42:50,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 05:42:50,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 05:42:50,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 05:42:50,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 05:42:50,870 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 05:42:50,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 05:42:50,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 05:42:50,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 05:42:50,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 05:42:50,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 05:42:50,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 05:42:50,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 05:42:50,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 05:42:50,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 05:42:50,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 05:42:50,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 05:42:50,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 05:42:50,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 05:42:50,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 05:42:50,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 05:42:50,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 05:42:50,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 05:42:50,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 05:42:50,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 05:42:50,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 05:42:50,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 05:42:50,889 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 05:42:50,913 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 05:42:50,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 05:42:50,914 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 05:42:50,914 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 05:42:50,915 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 05:42:50,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 05:42:50,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 05:42:50,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 05:42:50,916 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 05:42:50,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 05:42:50,917 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 05:42:50,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 05:42:50,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 05:42:50,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 05:42:50,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 05:42:50,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 05:42:50,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 05:42:50,918 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 05:42:50,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 05:42:50,919 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 05:42:50,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 05:42:50,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 05:42:50,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 05:42:50,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 05:42:50,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 05:42:50,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 05:42:50,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 05:42:50,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 05:42:50,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 05:42:50,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 05:42:50,921 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 05:42:50,922 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 05:42:50,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 05:42:50,922 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4cb164e6307f0ddcae5850d7f4578967441d1456f6ed5a5be472ba090758b873 [2022-07-12 05:42:51,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 05:42:51,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 05:42:51,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 05:42:51,155 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 05:42:51,156 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 05:42:51,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product09.cil.c [2022-07-12 05:42:51,209 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/888fd6e14/905588de75e9466abbd8459341603b42/FLAG1bd1c5a11 [2022-07-12 05:42:51,694 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 05:42:51,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product09.cil.c [2022-07-12 05:42:51,724 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/888fd6e14/905588de75e9466abbd8459341603b42/FLAG1bd1c5a11 [2022-07-12 05:42:52,231 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/888fd6e14/905588de75e9466abbd8459341603b42 [2022-07-12 05:42:52,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 05:42:52,234 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 05:42:52,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 05:42:52,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 05:42:52,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 05:42:52,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 05:42:52" (1/1) ... [2022-07-12 05:42:52,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@281e3676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:42:52, skipping insertion in model container [2022-07-12 05:42:52,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 05:42:52" (1/1) ... [2022-07-12 05:42:52,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 05:42:52,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 05:42:52,608 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/elevator_spec2_product09.cil.c[28842,28855] [2022-07-12 05:42:52,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 05:42:52,776 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 05:42:52,818 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/elevator_spec2_product09.cil.c[28842,28855] [2022-07-12 05:42:52,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 05:42:52,880 INFO L208 MainTranslator]: Completed translation [2022-07-12 05:42:52,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:42:52 WrapperNode [2022-07-12 05:42:52,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 05:42:52,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 05:42:52,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 05:42:52,883 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 05:42:52,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:42:52" (1/1) ... [2022-07-12 05:42:52,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:42:52" (1/1) ... [2022-07-12 05:42:52,954 INFO L137 Inliner]: procedures = 89, calls = 330, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 812 [2022-07-12 05:42:52,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 05:42:52,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 05:42:52,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 05:42:52,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 05:42:52,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:42:52" (1/1) ... [2022-07-12 05:42:52,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:42:52" (1/1) ... [2022-07-12 05:42:52,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:42:52" (1/1) ... [2022-07-12 05:42:52,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:42:52" (1/1) ... [2022-07-12 05:42:52,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:42:52" (1/1) ... [2022-07-12 05:42:53,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:42:52" (1/1) ... [2022-07-12 05:42:53,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:42:52" (1/1) ... [2022-07-12 05:42:53,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 05:42:53,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 05:42:53,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 05:42:53,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 05:42:53,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:42:52" (1/1) ... [2022-07-12 05:42:53,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 05:42:53,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:42:53,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 05:42:53,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 05:42:53,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 05:42:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2022-07-12 05:42:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2022-07-12 05:42:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-07-12 05:42:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-07-12 05:42:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-07-12 05:42:53,141 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-07-12 05:42:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-07-12 05:42:53,142 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-07-12 05:42:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-12 05:42:53,142 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-12 05:42:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-12 05:42:53,143 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-12 05:42:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2022-07-12 05:42:53,143 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2022-07-12 05:42:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2022-07-12 05:42:53,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2022-07-12 05:42:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-07-12 05:42:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-07-12 05:42:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-07-12 05:42:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-07-12 05:42:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-07-12 05:42:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-07-12 05:42:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-07-12 05:42:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-07-12 05:42:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-07-12 05:42:53,145 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-07-12 05:42:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-07-12 05:42:53,145 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-07-12 05:42:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-07-12 05:42:53,145 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-07-12 05:42:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-07-12 05:42:53,146 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-07-12 05:42:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 05:42:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-07-12 05:42:53,146 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-07-12 05:42:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-07-12 05:42:53,146 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-07-12 05:42:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-07-12 05:42:53,146 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-07-12 05:42:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 05:42:53,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 05:42:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-07-12 05:42:53,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-07-12 05:42:53,290 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 05:42:53,305 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 05:42:54,261 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 05:42:54,274 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 05:42:54,274 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 05:42:54,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 05:42:54 BoogieIcfgContainer [2022-07-12 05:42:54,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 05:42:54,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 05:42:54,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 05:42:54,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 05:42:54,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 05:42:52" (1/3) ... [2022-07-12 05:42:54,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397858f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 05:42:54, skipping insertion in model container [2022-07-12 05:42:54,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:42:52" (2/3) ... [2022-07-12 05:42:54,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397858f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 05:42:54, skipping insertion in model container [2022-07-12 05:42:54,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 05:42:54" (3/3) ... [2022-07-12 05:42:54,285 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product09.cil.c [2022-07-12 05:42:54,296 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 05:42:54,297 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 05:42:54,351 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 05:42:54,357 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@17b438a5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1ab5fe6d [2022-07-12 05:42:54,357 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 05:42:54,369 INFO L276 IsEmpty]: Start isEmpty. Operand has 526 states, 418 states have (on average 1.7177033492822966) internal successors, (718), 439 states have internal predecessors, (718), 86 states have call successors, (86), 20 states have call predecessors, (86), 20 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) [2022-07-12 05:42:54,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-12 05:42:54,391 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:42:54,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:42:54,392 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:42:54,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:42:54,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1063489521, now seen corresponding path program 1 times [2022-07-12 05:42:54,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:42:54,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526773380] [2022-07-12 05:42:54,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:42:54,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:42:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:42:54,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:42:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:42:54,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:42:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:42:54,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:42:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:42:55,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 05:42:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:42:55,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:42:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:42:55,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:42:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:42:55,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 05:42:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:42:55,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 05:42:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:42:55,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:42:55,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:42:55,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526773380] [2022-07-12 05:42:55,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526773380] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:42:55,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:42:55,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:42:55,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133579559] [2022-07-12 05:42:55,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:42:55,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:42:55,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:42:55,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:42:55,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:42:55,171 INFO L87 Difference]: Start difference. First operand has 526 states, 418 states have (on average 1.7177033492822966) internal successors, (718), 439 states have internal predecessors, (718), 86 states have call successors, (86), 20 states have call predecessors, (86), 20 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:43:02,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:43:02,423 INFO L93 Difference]: Finished difference Result 1499 states and 2644 transitions. [2022-07-12 05:43:02,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 05:43:02,425 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2022-07-12 05:43:02,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:43:02,450 INFO L225 Difference]: With dead ends: 1499 [2022-07-12 05:43:02,450 INFO L226 Difference]: Without dead ends: 985 [2022-07-12 05:43:02,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2022-07-12 05:43:02,463 INFO L413 NwaCegarLoop]: 937 mSDtfsCounter, 1389 mSDsluCounter, 2371 mSDsCounter, 0 mSdLazyCounter, 4787 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 3308 SdHoareTripleChecker+Invalid, 5404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 4787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:43:02,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1459 Valid, 3308 Invalid, 5404 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [617 Valid, 4787 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-07-12 05:43:02,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2022-07-12 05:43:02,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 520. [2022-07-12 05:43:02,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 414 states have (on average 1.710144927536232) internal successors, (708), 433 states have internal predecessors, (708), 86 states have call successors, (86), 20 states have call predecessors, (86), 19 states have return successors, (81), 79 states have call predecessors, (81), 81 states have call successors, (81) [2022-07-12 05:43:02,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 875 transitions. [2022-07-12 05:43:02,647 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 875 transitions. Word has length 74 [2022-07-12 05:43:02,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:43:02,648 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 875 transitions. [2022-07-12 05:43:02,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:43:02,649 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 875 transitions. [2022-07-12 05:43:02,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-12 05:43:02,661 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:43:02,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:43:02,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 05:43:02,661 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:43:02,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:43:02,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1687716467, now seen corresponding path program 1 times [2022-07-12 05:43:02,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:43:02,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677381441] [2022-07-12 05:43:02,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:43:02,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:43:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:02,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:43:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:02,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:02,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:43:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:02,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 05:43:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:03,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:03,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:03,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:43:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:03,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:43:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:03,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:43:03,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:43:03,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677381441] [2022-07-12 05:43:03,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677381441] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:43:03,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:43:03,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:43:03,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053778799] [2022-07-12 05:43:03,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:43:03,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:43:03,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:43:03,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:43:03,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:43:03,068 INFO L87 Difference]: Start difference. First operand 520 states and 875 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:43:08,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:43:08,849 INFO L93 Difference]: Finished difference Result 1324 states and 2278 transitions. [2022-07-12 05:43:08,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 05:43:08,850 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 80 [2022-07-12 05:43:08,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:43:08,857 INFO L225 Difference]: With dead ends: 1324 [2022-07-12 05:43:08,857 INFO L226 Difference]: Without dead ends: 822 [2022-07-12 05:43:08,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2022-07-12 05:43:08,862 INFO L413 NwaCegarLoop]: 972 mSDtfsCounter, 1014 mSDsluCounter, 3021 mSDsCounter, 0 mSdLazyCounter, 5072 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 3993 SdHoareTripleChecker+Invalid, 5371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 5072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-12 05:43:08,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 3993 Invalid, 5371 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [299 Valid, 5072 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-07-12 05:43:08,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2022-07-12 05:43:08,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 524. [2022-07-12 05:43:08,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 417 states have (on average 1.7026378896882495) internal successors, (710), 436 states have internal predecessors, (710), 86 states have call successors, (86), 20 states have call predecessors, (86), 20 states have return successors, (83), 80 states have call predecessors, (83), 81 states have call successors, (83) [2022-07-12 05:43:08,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 879 transitions. [2022-07-12 05:43:08,932 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 879 transitions. Word has length 80 [2022-07-12 05:43:08,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:43:08,932 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 879 transitions. [2022-07-12 05:43:08,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-12 05:43:08,933 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 879 transitions. [2022-07-12 05:43:08,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-12 05:43:08,944 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:43:08,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:43:08,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 05:43:08,946 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:43:08,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:43:08,947 INFO L85 PathProgramCache]: Analyzing trace with hash -2018436953, now seen corresponding path program 1 times [2022-07-12 05:43:08,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:43:08,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853175515] [2022-07-12 05:43:08,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:43:08,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:43:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:09,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:43:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:09,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:09,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:43:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:09,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 05:43:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:09,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:09,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:09,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:43:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:09,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 05:43:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:09,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:43:09,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:43:09,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853175515] [2022-07-12 05:43:09,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853175515] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:43:09,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:43:09,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 05:43:09,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864830219] [2022-07-12 05:43:09,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:43:09,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 05:43:09,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:43:09,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 05:43:09,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:43:09,344 INFO L87 Difference]: Start difference. First operand 524 states and 879 transitions. Second operand has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 8 states have internal predecessors, (68), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-12 05:43:21,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:43:21,015 INFO L93 Difference]: Finished difference Result 2467 states and 4405 transitions. [2022-07-12 05:43:21,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-12 05:43:21,016 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 8 states have internal predecessors, (68), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 85 [2022-07-12 05:43:21,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:43:21,032 INFO L225 Difference]: With dead ends: 2467 [2022-07-12 05:43:21,032 INFO L226 Difference]: Without dead ends: 1961 [2022-07-12 05:43:21,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=260, Invalid=670, Unknown=0, NotChecked=0, Total=930 [2022-07-12 05:43:21,038 INFO L413 NwaCegarLoop]: 1057 mSDtfsCounter, 3646 mSDsluCounter, 3805 mSDsCounter, 0 mSdLazyCounter, 8522 mSolverCounterSat, 1502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3722 SdHoareTripleChecker+Valid, 4862 SdHoareTripleChecker+Invalid, 10024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1502 IncrementalHoareTripleChecker+Valid, 8522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:43:21,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3722 Valid, 4862 Invalid, 10024 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1502 Valid, 8522 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-07-12 05:43:21,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1961 states. [2022-07-12 05:43:21,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1961 to 1377. [2022-07-12 05:43:21,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1085 states have (on average 1.6617511520737327) internal successors, (1803), 1132 states have internal predecessors, (1803), 235 states have call successors, (235), 53 states have call predecessors, (235), 56 states have return successors, (269), 227 states have call predecessors, (269), 230 states have call successors, (269) [2022-07-12 05:43:21,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2307 transitions. [2022-07-12 05:43:21,224 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2307 transitions. Word has length 85 [2022-07-12 05:43:21,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:43:21,225 INFO L495 AbstractCegarLoop]: Abstraction has 1377 states and 2307 transitions. [2022-07-12 05:43:21,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 8 states have internal predecessors, (68), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2022-07-12 05:43:21,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2307 transitions. [2022-07-12 05:43:21,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-12 05:43:21,231 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:43:21,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:43:21,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 05:43:21,232 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:43:21,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:43:21,232 INFO L85 PathProgramCache]: Analyzing trace with hash 620001365, now seen corresponding path program 1 times [2022-07-12 05:43:21,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:43:21,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008063202] [2022-07-12 05:43:21,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:43:21,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:43:21,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:21,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:43:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:21,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:21,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 05:43:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:21,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 05:43:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:21,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:21,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:21,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:43:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:21,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:43:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:21,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 05:43:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:21,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:43:21,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:43:21,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008063202] [2022-07-12 05:43:21,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008063202] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:43:21,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:43:21,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 05:43:21,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136475878] [2022-07-12 05:43:21,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:43:21,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 05:43:21,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:43:21,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 05:43:21,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:43:21,572 INFO L87 Difference]: Start difference. First operand 1377 states and 2307 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-12 05:43:26,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:43:26,879 INFO L93 Difference]: Finished difference Result 3424 states and 5950 transitions. [2022-07-12 05:43:26,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 05:43:26,880 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 94 [2022-07-12 05:43:26,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:43:26,889 INFO L225 Difference]: With dead ends: 3424 [2022-07-12 05:43:26,889 INFO L226 Difference]: Without dead ends: 1924 [2022-07-12 05:43:26,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2022-07-12 05:43:26,897 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 1599 mSDsluCounter, 2822 mSDsCounter, 0 mSdLazyCounter, 4814 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1658 SdHoareTripleChecker+Valid, 3746 SdHoareTripleChecker+Invalid, 5153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 4814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:43:26,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1658 Valid, 3746 Invalid, 5153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 4814 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-07-12 05:43:26,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2022-07-12 05:43:27,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1377. [2022-07-12 05:43:27,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1085 states have (on average 1.6451612903225807) internal successors, (1785), 1132 states have internal predecessors, (1785), 235 states have call successors, (235), 53 states have call predecessors, (235), 56 states have return successors, (269), 227 states have call predecessors, (269), 230 states have call successors, (269) [2022-07-12 05:43:27,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2289 transitions. [2022-07-12 05:43:27,039 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2289 transitions. Word has length 94 [2022-07-12 05:43:27,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:43:27,039 INFO L495 AbstractCegarLoop]: Abstraction has 1377 states and 2289 transitions. [2022-07-12 05:43:27,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-07-12 05:43:27,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2289 transitions. [2022-07-12 05:43:27,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 05:43:27,042 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:43:27,042 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:43:27,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 05:43:27,043 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:43:27,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:43:27,044 INFO L85 PathProgramCache]: Analyzing trace with hash -2018113095, now seen corresponding path program 1 times [2022-07-12 05:43:27,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:43:27,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529988239] [2022-07-12 05:43:27,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:43:27,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:43:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:27,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:43:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:27,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:27,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:27,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 05:43:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:27,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-12 05:43:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:27,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:27,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:27,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:43:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:27,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:43:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:27,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 05:43:27,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:27,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:43:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:27,376 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 05:43:27,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:43:27,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529988239] [2022-07-12 05:43:27,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529988239] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:43:27,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:43:27,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:43:27,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333178683] [2022-07-12 05:43:27,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:43:27,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:43:27,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:43:27,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:43:27,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:43:27,379 INFO L87 Difference]: Start difference. First operand 1377 states and 2289 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 05:43:31,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:43:31,415 INFO L93 Difference]: Finished difference Result 3283 states and 5622 transitions. [2022-07-12 05:43:31,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 05:43:31,416 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 97 [2022-07-12 05:43:31,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:43:31,424 INFO L225 Difference]: With dead ends: 3283 [2022-07-12 05:43:31,425 INFO L226 Difference]: Without dead ends: 1924 [2022-07-12 05:43:31,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:43:31,429 INFO L413 NwaCegarLoop]: 919 mSDtfsCounter, 941 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 2580 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 2305 SdHoareTripleChecker+Invalid, 2837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 2580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:43:31,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 2305 Invalid, 2837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 2580 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-12 05:43:31,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2022-07-12 05:43:31,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 1377. [2022-07-12 05:43:31,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1085 states have (on average 1.6442396313364056) internal successors, (1784), 1132 states have internal predecessors, (1784), 235 states have call successors, (235), 53 states have call predecessors, (235), 56 states have return successors, (269), 227 states have call predecessors, (269), 230 states have call successors, (269) [2022-07-12 05:43:31,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2288 transitions. [2022-07-12 05:43:31,556 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2288 transitions. Word has length 97 [2022-07-12 05:43:31,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:43:31,556 INFO L495 AbstractCegarLoop]: Abstraction has 1377 states and 2288 transitions. [2022-07-12 05:43:31,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 05:43:31,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2288 transitions. [2022-07-12 05:43:31,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 05:43:31,558 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:43:31,558 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:43:31,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 05:43:31,559 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:43:31,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:43:31,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1537886588, now seen corresponding path program 1 times [2022-07-12 05:43:31,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:43:31,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47805835] [2022-07-12 05:43:31,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:43:31,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:43:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:31,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:43:31,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:31,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:31,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:43:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:31,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 05:43:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:31,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:31,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:31,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:31,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:43:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:31,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:43:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:31,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 05:43:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:31,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:43:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:31,890 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-12 05:43:31,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:43:31,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47805835] [2022-07-12 05:43:31,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47805835] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:43:31,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:43:31,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 05:43:31,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244962255] [2022-07-12 05:43:31,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:43:31,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 05:43:31,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:43:31,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 05:43:31,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:43:31,894 INFO L87 Difference]: Start difference. First operand 1377 states and 2288 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-12 05:43:37,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:43:37,626 INFO L93 Difference]: Finished difference Result 3365 states and 5856 transitions. [2022-07-12 05:43:37,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-12 05:43:37,627 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 98 [2022-07-12 05:43:37,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:43:37,642 INFO L225 Difference]: With dead ends: 3365 [2022-07-12 05:43:37,642 INFO L226 Difference]: Without dead ends: 2046 [2022-07-12 05:43:37,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=103, Invalid=449, Unknown=0, NotChecked=0, Total=552 [2022-07-12 05:43:37,650 INFO L413 NwaCegarLoop]: 923 mSDtfsCounter, 1624 mSDsluCounter, 4075 mSDsCounter, 0 mSdLazyCounter, 6228 mSolverCounterSat, 534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1687 SdHoareTripleChecker+Valid, 4998 SdHoareTripleChecker+Invalid, 6762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 6228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:43:37,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1687 Valid, 4998 Invalid, 6762 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [534 Valid, 6228 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-07-12 05:43:37,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2046 states. [2022-07-12 05:43:37,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2046 to 1397. [2022-07-12 05:43:37,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1397 states, 1095 states have (on average 1.6337899543378995) internal successors, (1789), 1149 states have internal predecessors, (1789), 238 states have call successors, (238), 53 states have call predecessors, (238), 63 states have return successors, (301), 230 states have call predecessors, (301), 233 states have call successors, (301) [2022-07-12 05:43:37,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 2328 transitions. [2022-07-12 05:43:37,831 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 2328 transitions. Word has length 98 [2022-07-12 05:43:37,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:43:37,831 INFO L495 AbstractCegarLoop]: Abstraction has 1397 states and 2328 transitions. [2022-07-12 05:43:37,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-12 05:43:37,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 2328 transitions. [2022-07-12 05:43:37,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 05:43:37,834 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:43:37,834 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:43:37,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 05:43:37,834 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:43:37,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:43:37,835 INFO L85 PathProgramCache]: Analyzing trace with hash -141304047, now seen corresponding path program 1 times [2022-07-12 05:43:37,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:43:37,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893371097] [2022-07-12 05:43:37,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:43:37,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:43:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:37,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:43:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:37,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:37,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:43:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:38,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-12 05:43:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:38,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:38,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:38,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:38,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:43:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:38,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:43:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:38,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 05:43:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:38,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:43:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:38,117 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 05:43:38,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:43:38,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893371097] [2022-07-12 05:43:38,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893371097] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:43:38,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:43:38,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:43:38,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711798] [2022-07-12 05:43:38,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:43:38,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:43:38,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:43:38,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:43:38,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:43:38,119 INFO L87 Difference]: Start difference. First operand 1397 states and 2328 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 05:43:42,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:43:42,271 INFO L93 Difference]: Finished difference Result 3289 states and 5669 transitions. [2022-07-12 05:43:42,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 05:43:42,272 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 99 [2022-07-12 05:43:42,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:43:42,286 INFO L225 Difference]: With dead ends: 3289 [2022-07-12 05:43:42,286 INFO L226 Difference]: Without dead ends: 1950 [2022-07-12 05:43:42,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:43:42,293 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 989 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 309 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 2271 SdHoareTripleChecker+Invalid, 2829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 309 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-12 05:43:42,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 2271 Invalid, 2829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [309 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-12 05:43:42,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2022-07-12 05:43:42,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1397. [2022-07-12 05:43:42,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1397 states, 1095 states have (on average 1.6292237442922375) internal successors, (1784), 1149 states have internal predecessors, (1784), 238 states have call successors, (238), 53 states have call predecessors, (238), 63 states have return successors, (301), 230 states have call predecessors, (301), 233 states have call successors, (301) [2022-07-12 05:43:42,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 2323 transitions. [2022-07-12 05:43:42,471 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 2323 transitions. Word has length 99 [2022-07-12 05:43:42,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:43:42,471 INFO L495 AbstractCegarLoop]: Abstraction has 1397 states and 2323 transitions. [2022-07-12 05:43:42,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 05:43:42,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 2323 transitions. [2022-07-12 05:43:42,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 05:43:42,476 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:43:42,476 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:43:42,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 05:43:42,477 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:43:42,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:43:42,477 INFO L85 PathProgramCache]: Analyzing trace with hash 99870936, now seen corresponding path program 1 times [2022-07-12 05:43:42,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:43:42,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824023257] [2022-07-12 05:43:42,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:43:42,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:43:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:42,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:43:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:42,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:42,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:43:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:42,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 05:43:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:42,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:42,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:42,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:42,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:43:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:42,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:43:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:42,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 05:43:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:42,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:43:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:42,806 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 05:43:42,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:43:42,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824023257] [2022-07-12 05:43:42,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824023257] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:43:42,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:43:42,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:43:42,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443497980] [2022-07-12 05:43:42,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:43:42,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:43:42,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:43:42,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:43:42,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:43:42,808 INFO L87 Difference]: Start difference. First operand 1397 states and 2323 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 05:43:46,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:43:46,236 INFO L93 Difference]: Finished difference Result 3289 states and 5664 transitions. [2022-07-12 05:43:46,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 05:43:46,237 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 100 [2022-07-12 05:43:46,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:43:46,247 INFO L225 Difference]: With dead ends: 3289 [2022-07-12 05:43:46,248 INFO L226 Difference]: Without dead ends: 1950 [2022-07-12 05:43:46,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:43:46,253 INFO L413 NwaCegarLoop]: 869 mSDtfsCounter, 1769 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 2231 mSolverCounterSat, 571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1839 SdHoareTripleChecker+Valid, 2137 SdHoareTripleChecker+Invalid, 2802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 571 IncrementalHoareTripleChecker+Valid, 2231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-12 05:43:46,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1839 Valid, 2137 Invalid, 2802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [571 Valid, 2231 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-12 05:43:46,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2022-07-12 05:43:46,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1397. [2022-07-12 05:43:46,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1397 states, 1095 states have (on average 1.6246575342465754) internal successors, (1779), 1149 states have internal predecessors, (1779), 238 states have call successors, (238), 53 states have call predecessors, (238), 63 states have return successors, (301), 230 states have call predecessors, (301), 233 states have call successors, (301) [2022-07-12 05:43:46,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 2318 transitions. [2022-07-12 05:43:46,465 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 2318 transitions. Word has length 100 [2022-07-12 05:43:46,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:43:46,465 INFO L495 AbstractCegarLoop]: Abstraction has 1397 states and 2318 transitions. [2022-07-12 05:43:46,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 05:43:46,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 2318 transitions. [2022-07-12 05:43:46,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-12 05:43:46,469 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:43:46,469 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:43:46,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 05:43:46,470 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:43:46,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:43:46,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1204417932, now seen corresponding path program 1 times [2022-07-12 05:43:46,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:43:46,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419353700] [2022-07-12 05:43:46,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:43:46,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:43:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:46,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:43:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:46,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:46,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:43:46,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:46,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 05:43:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:46,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:46,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:46,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:46,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:43:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:46,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:43:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:46,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 05:43:46,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:46,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:43:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:46,738 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 05:43:46,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:43:46,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419353700] [2022-07-12 05:43:46,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419353700] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:43:46,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:43:46,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:43:46,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046187076] [2022-07-12 05:43:46,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:43:46,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:43:46,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:43:46,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:43:46,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:43:46,741 INFO L87 Difference]: Start difference. First operand 1397 states and 2318 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 05:43:50,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:43:50,811 INFO L93 Difference]: Finished difference Result 3289 states and 5659 transitions. [2022-07-12 05:43:50,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 05:43:50,812 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2022-07-12 05:43:50,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:43:50,821 INFO L225 Difference]: With dead ends: 3289 [2022-07-12 05:43:50,821 INFO L226 Difference]: Without dead ends: 1950 [2022-07-12 05:43:50,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:43:50,825 INFO L413 NwaCegarLoop]: 876 mSDtfsCounter, 1003 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 287 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 287 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:43:50,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 2282 Invalid, 2754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [287 Valid, 2467 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-12 05:43:50,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2022-07-12 05:43:50,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1397. [2022-07-12 05:43:50,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1397 states, 1095 states have (on average 1.6200913242009132) internal successors, (1774), 1149 states have internal predecessors, (1774), 238 states have call successors, (238), 53 states have call predecessors, (238), 63 states have return successors, (301), 230 states have call predecessors, (301), 233 states have call successors, (301) [2022-07-12 05:43:50,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1397 states to 1397 states and 2313 transitions. [2022-07-12 05:43:50,985 INFO L78 Accepts]: Start accepts. Automaton has 1397 states and 2313 transitions. Word has length 101 [2022-07-12 05:43:50,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:43:50,986 INFO L495 AbstractCegarLoop]: Abstraction has 1397 states and 2313 transitions. [2022-07-12 05:43:50,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 05:43:50,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1397 states and 2313 transitions. [2022-07-12 05:43:50,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-12 05:43:50,988 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:43:50,988 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:43:50,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 05:43:50,989 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:43:50,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:43:50,989 INFO L85 PathProgramCache]: Analyzing trace with hash 387102411, now seen corresponding path program 1 times [2022-07-12 05:43:50,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:43:50,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544512649] [2022-07-12 05:43:50,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:43:50,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:43:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:51,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:43:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:51,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:51,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:51,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:43:51,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:51,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 05:43:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:51,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:51,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:51,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:43:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:51,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:43:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:51,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 05:43:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:51,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:43:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:51,301 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 05:43:51,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:43:51,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544512649] [2022-07-12 05:43:51,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544512649] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:43:51,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:43:51,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:43:51,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639524262] [2022-07-12 05:43:51,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:43:51,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:43:51,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:43:51,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:43:51,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:43:51,303 INFO L87 Difference]: Start difference. First operand 1397 states and 2313 transitions. Second operand has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-12 05:43:56,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:43:56,551 INFO L93 Difference]: Finished difference Result 3312 states and 5688 transitions. [2022-07-12 05:43:56,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 05:43:56,552 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 101 [2022-07-12 05:43:56,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:43:56,564 INFO L225 Difference]: With dead ends: 3312 [2022-07-12 05:43:56,564 INFO L226 Difference]: Without dead ends: 1979 [2022-07-12 05:43:56,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-07-12 05:43:56,570 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 1384 mSDsluCounter, 2764 mSDsCounter, 0 mSdLazyCounter, 4700 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 3653 SdHoareTripleChecker+Invalid, 5111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 4700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:43:56,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1455 Valid, 3653 Invalid, 5111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 4700 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-07-12 05:43:56,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2022-07-12 05:43:56,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1399. [2022-07-12 05:43:56,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1399 states, 1097 states have (on average 1.6189608021877848) internal successors, (1776), 1151 states have internal predecessors, (1776), 238 states have call successors, (238), 53 states have call predecessors, (238), 63 states have return successors, (301), 230 states have call predecessors, (301), 233 states have call successors, (301) [2022-07-12 05:43:56,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1399 states to 1399 states and 2315 transitions. [2022-07-12 05:43:56,789 INFO L78 Accepts]: Start accepts. Automaton has 1399 states and 2315 transitions. Word has length 101 [2022-07-12 05:43:56,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:43:56,789 INFO L495 AbstractCegarLoop]: Abstraction has 1399 states and 2315 transitions. [2022-07-12 05:43:56,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-12 05:43:56,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1399 states and 2315 transitions. [2022-07-12 05:43:56,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-12 05:43:56,792 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:43:56,792 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:43:56,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 05:43:56,792 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:43:56,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:43:56,793 INFO L85 PathProgramCache]: Analyzing trace with hash -991273741, now seen corresponding path program 1 times [2022-07-12 05:43:56,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:43:56,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963860464] [2022-07-12 05:43:56,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:43:56,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:43:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:56,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:43:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:56,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:56,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:43:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:57,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:43:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:57,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:57,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:43:57,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:57,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:43:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:57,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:43:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:57,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 05:43:57,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:57,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:43:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:43:57,086 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 05:43:57,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:43:57,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963860464] [2022-07-12 05:43:57,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963860464] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:43:57,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:43:57,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:43:57,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949502038] [2022-07-12 05:43:57,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:43:57,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:43:57,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:43:57,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:43:57,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:43:57,089 INFO L87 Difference]: Start difference. First operand 1399 states and 2315 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 05:44:01,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:44:01,222 INFO L93 Difference]: Finished difference Result 3295 states and 5660 transitions. [2022-07-12 05:44:01,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 05:44:01,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 102 [2022-07-12 05:44:01,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:44:01,233 INFO L225 Difference]: With dead ends: 3295 [2022-07-12 05:44:01,233 INFO L226 Difference]: Without dead ends: 1954 [2022-07-12 05:44:01,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:44:01,239 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 1000 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 2455 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 2250 SdHoareTripleChecker+Invalid, 2736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 2455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-07-12 05:44:01,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1070 Valid, 2250 Invalid, 2736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 2455 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-07-12 05:44:01,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2022-07-12 05:44:01,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1399. [2022-07-12 05:44:01,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1399 states, 1097 states have (on average 1.6144029170464904) internal successors, (1771), 1151 states have internal predecessors, (1771), 238 states have call successors, (238), 53 states have call predecessors, (238), 63 states have return successors, (301), 230 states have call predecessors, (301), 233 states have call successors, (301) [2022-07-12 05:44:01,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1399 states to 1399 states and 2310 transitions. [2022-07-12 05:44:01,446 INFO L78 Accepts]: Start accepts. Automaton has 1399 states and 2310 transitions. Word has length 102 [2022-07-12 05:44:01,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:44:01,446 INFO L495 AbstractCegarLoop]: Abstraction has 1399 states and 2310 transitions. [2022-07-12 05:44:01,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 05:44:01,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1399 states and 2310 transitions. [2022-07-12 05:44:01,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-12 05:44:01,448 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:44:01,448 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:44:01,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 05:44:01,449 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:44:01,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:44:01,449 INFO L85 PathProgramCache]: Analyzing trace with hash 48646230, now seen corresponding path program 1 times [2022-07-12 05:44:01,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:44:01,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296664752] [2022-07-12 05:44:01,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:44:01,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:44:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:01,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:44:01,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:01,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:01,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:01,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:44:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:01,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:44:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:01,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:01,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:01,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:44:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:01,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:44:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:01,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 05:44:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:01,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:44:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:01,742 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 05:44:01,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:44:01,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296664752] [2022-07-12 05:44:01,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296664752] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:44:01,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:44:01,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:44:01,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411809128] [2022-07-12 05:44:01,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:44:01,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:44:01,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:44:01,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:44:01,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:44:01,744 INFO L87 Difference]: Start difference. First operand 1399 states and 2310 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-12 05:44:06,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:44:06,872 INFO L93 Difference]: Finished difference Result 3316 states and 5685 transitions. [2022-07-12 05:44:06,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 05:44:06,873 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 102 [2022-07-12 05:44:06,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:44:06,882 INFO L225 Difference]: With dead ends: 3316 [2022-07-12 05:44:06,882 INFO L226 Difference]: Without dead ends: 1983 [2022-07-12 05:44:06,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-07-12 05:44:06,889 INFO L413 NwaCegarLoop]: 876 mSDtfsCounter, 1403 mSDsluCounter, 2748 mSDsCounter, 0 mSdLazyCounter, 4594 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 3624 SdHoareTripleChecker+Invalid, 5015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 4594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-07-12 05:44:06,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 3624 Invalid, 5015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 4594 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-07-12 05:44:06,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2022-07-12 05:44:07,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 1402. [2022-07-12 05:44:07,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1100 states have (on average 1.6127272727272728) internal successors, (1774), 1154 states have internal predecessors, (1774), 238 states have call successors, (238), 53 states have call predecessors, (238), 63 states have return successors, (301), 230 states have call predecessors, (301), 233 states have call successors, (301) [2022-07-12 05:44:07,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 2313 transitions. [2022-07-12 05:44:07,087 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 2313 transitions. Word has length 102 [2022-07-12 05:44:07,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:44:07,088 INFO L495 AbstractCegarLoop]: Abstraction has 1402 states and 2313 transitions. [2022-07-12 05:44:07,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-12 05:44:07,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 2313 transitions. [2022-07-12 05:44:07,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-12 05:44:07,090 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:44:07,091 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:44:07,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 05:44:07,091 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:44:07,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:44:07,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1879818247, now seen corresponding path program 1 times [2022-07-12 05:44:07,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:44:07,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262103881] [2022-07-12 05:44:07,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:44:07,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:44:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:07,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:44:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:07,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:07,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:07,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:44:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:07,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:44:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:07,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:07,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:07,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:44:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:07,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:44:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:07,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 05:44:07,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:07,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:44:07,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:07,357 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 05:44:07,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:44:07,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262103881] [2022-07-12 05:44:07,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262103881] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:44:07,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:44:07,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:44:07,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029685269] [2022-07-12 05:44:07,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:44:07,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:44:07,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:44:07,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:44:07,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:44:07,359 INFO L87 Difference]: Start difference. First operand 1402 states and 2313 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 05:44:11,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:44:11,124 INFO L93 Difference]: Finished difference Result 3344 states and 5714 transitions. [2022-07-12 05:44:11,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 05:44:11,125 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 103 [2022-07-12 05:44:11,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:44:11,133 INFO L225 Difference]: With dead ends: 3344 [2022-07-12 05:44:11,133 INFO L226 Difference]: Without dead ends: 1960 [2022-07-12 05:44:11,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:44:11,137 INFO L413 NwaCegarLoop]: 890 mSDtfsCounter, 1312 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 2260 mSolverCounterSat, 392 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 2217 SdHoareTripleChecker+Invalid, 2652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 392 IncrementalHoareTripleChecker+Valid, 2260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:44:11,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 2217 Invalid, 2652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [392 Valid, 2260 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-12 05:44:11,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1960 states. [2022-07-12 05:44:11,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1960 to 1402. [2022-07-12 05:44:11,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1100 states have (on average 1.6118181818181818) internal successors, (1773), 1154 states have internal predecessors, (1773), 238 states have call successors, (238), 53 states have call predecessors, (238), 63 states have return successors, (301), 230 states have call predecessors, (301), 233 states have call successors, (301) [2022-07-12 05:44:11,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 2312 transitions. [2022-07-12 05:44:11,318 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 2312 transitions. Word has length 103 [2022-07-12 05:44:11,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:44:11,318 INFO L495 AbstractCegarLoop]: Abstraction has 1402 states and 2312 transitions. [2022-07-12 05:44:11,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 05:44:11,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 2312 transitions. [2022-07-12 05:44:11,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-12 05:44:11,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:44:11,321 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:44:11,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 05:44:11,321 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:44:11,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:44:11,321 INFO L85 PathProgramCache]: Analyzing trace with hash 711621992, now seen corresponding path program 1 times [2022-07-12 05:44:11,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:44:11,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8393618] [2022-07-12 05:44:11,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:44:11,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:44:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:11,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:44:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:11,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:11,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:44:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:11,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:44:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:11,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:11,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:11,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:11,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:44:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:11,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:44:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:11,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 05:44:11,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:11,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:44:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:11,620 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 05:44:11,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:44:11,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8393618] [2022-07-12 05:44:11,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8393618] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:44:11,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:44:11,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:44:11,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687832486] [2022-07-12 05:44:11,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:44:11,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:44:11,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:44:11,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:44:11,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:44:11,622 INFO L87 Difference]: Start difference. First operand 1402 states and 2312 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-12 05:44:16,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:44:16,735 INFO L93 Difference]: Finished difference Result 3304 states and 5664 transitions. [2022-07-12 05:44:16,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 05:44:16,735 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 103 [2022-07-12 05:44:16,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:44:16,746 INFO L225 Difference]: With dead ends: 3304 [2022-07-12 05:44:16,746 INFO L226 Difference]: Without dead ends: 1950 [2022-07-12 05:44:16,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-07-12 05:44:16,756 INFO L413 NwaCegarLoop]: 897 mSDtfsCounter, 1010 mSDsluCounter, 2799 mSDsCounter, 0 mSdLazyCounter, 4699 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 3696 SdHoareTripleChecker+Invalid, 4958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 4699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:44:16,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1080 Valid, 3696 Invalid, 4958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 4699 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-07-12 05:44:16,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2022-07-12 05:44:16,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1394. [2022-07-12 05:44:16,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1092 states have (on average 1.6135531135531136) internal successors, (1762), 1146 states have internal predecessors, (1762), 238 states have call successors, (238), 53 states have call predecessors, (238), 63 states have return successors, (301), 230 states have call predecessors, (301), 233 states have call successors, (301) [2022-07-12 05:44:17,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 2301 transitions. [2022-07-12 05:44:17,003 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 2301 transitions. Word has length 103 [2022-07-12 05:44:17,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:44:17,005 INFO L495 AbstractCegarLoop]: Abstraction has 1394 states and 2301 transitions. [2022-07-12 05:44:17,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-12 05:44:17,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 2301 transitions. [2022-07-12 05:44:17,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-12 05:44:17,007 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:44:17,008 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:44:17,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 05:44:17,008 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:44:17,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:44:17,008 INFO L85 PathProgramCache]: Analyzing trace with hash -682021401, now seen corresponding path program 1 times [2022-07-12 05:44:17,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:44:17,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487371700] [2022-07-12 05:44:17,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:44:17,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:44:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:17,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:44:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:17,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:17,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:44:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:17,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:44:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:17,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:17,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:17,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:44:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:17,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:44:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:17,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 05:44:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:17,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:44:17,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:17,296 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 05:44:17,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:44:17,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487371700] [2022-07-12 05:44:17,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487371700] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:44:17,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:44:17,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:44:17,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41270983] [2022-07-12 05:44:17,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:44:17,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:44:17,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:44:17,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:44:17,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:44:17,298 INFO L87 Difference]: Start difference. First operand 1394 states and 2301 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-12 05:44:22,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:44:22,806 INFO L93 Difference]: Finished difference Result 3304 states and 5660 transitions. [2022-07-12 05:44:22,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 05:44:22,807 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 103 [2022-07-12 05:44:22,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:44:22,819 INFO L225 Difference]: With dead ends: 3304 [2022-07-12 05:44:22,819 INFO L226 Difference]: Without dead ends: 1971 [2022-07-12 05:44:22,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-07-12 05:44:22,825 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 1352 mSDsluCounter, 2774 mSDsCounter, 0 mSdLazyCounter, 4541 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 3649 SdHoareTripleChecker+Invalid, 4944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 4541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:44:22,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 3649 Invalid, 4944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 4541 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-12 05:44:22,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2022-07-12 05:44:23,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1398. [2022-07-12 05:44:23,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1398 states, 1096 states have (on average 1.6113138686131387) internal successors, (1766), 1150 states have internal predecessors, (1766), 238 states have call successors, (238), 53 states have call predecessors, (238), 63 states have return successors, (301), 230 states have call predecessors, (301), 233 states have call successors, (301) [2022-07-12 05:44:23,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 2305 transitions. [2022-07-12 05:44:23,055 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 2305 transitions. Word has length 103 [2022-07-12 05:44:23,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:44:23,055 INFO L495 AbstractCegarLoop]: Abstraction has 1398 states and 2305 transitions. [2022-07-12 05:44:23,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-12 05:44:23,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 2305 transitions. [2022-07-12 05:44:23,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-12 05:44:23,057 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:44:23,057 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:44:23,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 05:44:23,058 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:44:23,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:44:23,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1650050416, now seen corresponding path program 1 times [2022-07-12 05:44:23,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:44:23,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478660241] [2022-07-12 05:44:23,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:44:23,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:44:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:23,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:44:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:23,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:23,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:23,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:44:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:23,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:44:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:23,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:23,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:23,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:44:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:23,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:44:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:23,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 05:44:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:23,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:44:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:23,343 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 05:44:23,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:44:23,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478660241] [2022-07-12 05:44:23,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478660241] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:44:23,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:44:23,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:44:23,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300675349] [2022-07-12 05:44:23,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:44:23,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:44:23,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:44:23,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:44:23,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:44:23,346 INFO L87 Difference]: Start difference. First operand 1398 states and 2305 transitions. Second operand has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-12 05:44:28,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:44:28,964 INFO L93 Difference]: Finished difference Result 3312 states and 5666 transitions. [2022-07-12 05:44:28,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 05:44:28,965 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 104 [2022-07-12 05:44:28,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:44:28,976 INFO L225 Difference]: With dead ends: 3312 [2022-07-12 05:44:28,976 INFO L226 Difference]: Without dead ends: 1979 [2022-07-12 05:44:28,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-07-12 05:44:28,981 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 1347 mSDsluCounter, 2758 mSDsCounter, 0 mSdLazyCounter, 4538 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 3632 SdHoareTripleChecker+Invalid, 4942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 4538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-12 05:44:28,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 3632 Invalid, 4942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 4538 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-12 05:44:28,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2022-07-12 05:44:29,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1403. [2022-07-12 05:44:29,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1101 states have (on average 1.608537693006358) internal successors, (1771), 1155 states have internal predecessors, (1771), 238 states have call successors, (238), 53 states have call predecessors, (238), 63 states have return successors, (301), 230 states have call predecessors, (301), 233 states have call successors, (301) [2022-07-12 05:44:29,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 2310 transitions. [2022-07-12 05:44:29,187 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 2310 transitions. Word has length 104 [2022-07-12 05:44:29,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:44:29,187 INFO L495 AbstractCegarLoop]: Abstraction has 1403 states and 2310 transitions. [2022-07-12 05:44:29,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-07-12 05:44:29,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 2310 transitions. [2022-07-12 05:44:29,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-12 05:44:29,190 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:44:29,190 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:44:29,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 05:44:29,190 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:44:29,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:44:29,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1915216684, now seen corresponding path program 1 times [2022-07-12 05:44:29,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:44:29,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685778595] [2022-07-12 05:44:29,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:44:29,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:44:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:29,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:44:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:29,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:29,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:44:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:29,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:44:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:29,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:29,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:29,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:29,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:44:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:29,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:44:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:29,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 05:44:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:29,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:44:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:29,498 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 05:44:29,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:44:29,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685778595] [2022-07-12 05:44:29,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685778595] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:44:29,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:44:29,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:44:29,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105092583] [2022-07-12 05:44:29,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:44:29,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:44:29,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:44:29,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:44:29,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:44:29,501 INFO L87 Difference]: Start difference. First operand 1403 states and 2310 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 05:44:33,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:44:33,391 INFO L93 Difference]: Finished difference Result 3310 states and 5661 transitions. [2022-07-12 05:44:33,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 05:44:33,391 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 105 [2022-07-12 05:44:33,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:44:33,400 INFO L225 Difference]: With dead ends: 3310 [2022-07-12 05:44:33,401 INFO L226 Difference]: Without dead ends: 1956 [2022-07-12 05:44:33,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:44:33,405 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 1718 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 2156 mSolverCounterSat, 532 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1788 SdHoareTripleChecker+Valid, 2145 SdHoareTripleChecker+Invalid, 2688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 532 IncrementalHoareTripleChecker+Valid, 2156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:44:33,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1788 Valid, 2145 Invalid, 2688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [532 Valid, 2156 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 05:44:33,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2022-07-12 05:44:33,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 1403. [2022-07-12 05:44:33,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1101 states have (on average 1.6049046321525886) internal successors, (1767), 1155 states have internal predecessors, (1767), 238 states have call successors, (238), 53 states have call predecessors, (238), 63 states have return successors, (301), 230 states have call predecessors, (301), 233 states have call successors, (301) [2022-07-12 05:44:33,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 2306 transitions. [2022-07-12 05:44:33,641 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 2306 transitions. Word has length 105 [2022-07-12 05:44:33,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:44:33,641 INFO L495 AbstractCegarLoop]: Abstraction has 1403 states and 2306 transitions. [2022-07-12 05:44:33,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-12 05:44:33,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 2306 transitions. [2022-07-12 05:44:33,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-12 05:44:33,643 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:44:33,643 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:44:33,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 05:44:33,644 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:44:33,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:44:33,644 INFO L85 PathProgramCache]: Analyzing trace with hash 645646162, now seen corresponding path program 1 times [2022-07-12 05:44:33,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:44:33,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265272079] [2022-07-12 05:44:33,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:44:33,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:44:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:33,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:44:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:33,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:33,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:44:33,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:33,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:44:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:33,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:34,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:34,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:44:34,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:34,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:44:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:34,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 05:44:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:34,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:44:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:34,085 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 05:44:34,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:44:34,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265272079] [2022-07-12 05:44:34,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265272079] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:44:34,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:44:34,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-07-12 05:44:34,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120504912] [2022-07-12 05:44:34,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:44:34,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-12 05:44:34,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:44:34,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-12 05:44:34,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-07-12 05:44:34,088 INFO L87 Difference]: Start difference. First operand 1403 states and 2306 transitions. Second operand has 16 states, 15 states have (on average 5.333333333333333) internal successors, (80), 12 states have internal predecessors, (80), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (10), 7 states have call predecessors, (10), 4 states have call successors, (10) [2022-07-12 05:45:03,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:45:03,934 INFO L93 Difference]: Finished difference Result 6648 states and 11910 transitions. [2022-07-12 05:45:03,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-07-12 05:45:03,935 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.333333333333333) internal successors, (80), 12 states have internal predecessors, (80), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (10), 7 states have call predecessors, (10), 4 states have call successors, (10) Word has length 105 [2022-07-12 05:45:03,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:45:03,956 INFO L225 Difference]: With dead ends: 6648 [2022-07-12 05:45:03,956 INFO L226 Difference]: Without dead ends: 5319 [2022-07-12 05:45:03,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3154 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=1333, Invalid=7409, Unknown=0, NotChecked=0, Total=8742 [2022-07-12 05:45:03,964 INFO L413 NwaCegarLoop]: 1539 mSDtfsCounter, 11229 mSDsluCounter, 6955 mSDsCounter, 0 mSdLazyCounter, 21596 mSolverCounterSat, 5647 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11302 SdHoareTripleChecker+Valid, 8494 SdHoareTripleChecker+Invalid, 27243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5647 IncrementalHoareTripleChecker+Valid, 21596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2022-07-12 05:45:03,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11302 Valid, 8494 Invalid, 27243 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5647 Valid, 21596 Invalid, 0 Unknown, 0 Unchecked, 21.5s Time] [2022-07-12 05:45:03,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5319 states. [2022-07-12 05:45:04,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5319 to 3080. [2022-07-12 05:45:04,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3080 states, 2416 states have (on average 1.5815397350993377) internal successors, (3821), 2534 states have internal predecessors, (3821), 512 states have call successors, (512), 118 states have call predecessors, (512), 151 states have return successors, (687), 499 states have call predecessors, (687), 507 states have call successors, (687) [2022-07-12 05:45:04,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3080 states to 3080 states and 5020 transitions. [2022-07-12 05:45:04,616 INFO L78 Accepts]: Start accepts. Automaton has 3080 states and 5020 transitions. Word has length 105 [2022-07-12 05:45:04,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:45:04,617 INFO L495 AbstractCegarLoop]: Abstraction has 3080 states and 5020 transitions. [2022-07-12 05:45:04,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.333333333333333) internal successors, (80), 12 states have internal predecessors, (80), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (10), 7 states have call predecessors, (10), 4 states have call successors, (10) [2022-07-12 05:45:04,617 INFO L276 IsEmpty]: Start isEmpty. Operand 3080 states and 5020 transitions. [2022-07-12 05:45:04,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-12 05:45:04,620 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:45:04,621 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:45:04,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 05:45:04,621 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:45:04,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:45:04,621 INFO L85 PathProgramCache]: Analyzing trace with hash 871924812, now seen corresponding path program 1 times [2022-07-12 05:45:04,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:45:04,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334240667] [2022-07-12 05:45:04,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:45:04,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:45:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:04,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:45:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:04,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:04,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:45:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:04,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:45:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:04,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:04,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:04,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:45:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:04,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:45:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:05,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 05:45:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:05,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:45:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:05,014 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-12 05:45:05,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:45:05,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334240667] [2022-07-12 05:45:05,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334240667] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:45:05,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909436039] [2022-07-12 05:45:05,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:45:05,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:45:05,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:45:05,020 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) [2022-07-12 05:45:05,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 05:45:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:05,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 1416 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 05:45:05,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:45:05,403 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 05:45:05,403 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:45:05,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909436039] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:45:05,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:45:05,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2022-07-12 05:45:05,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210654167] [2022-07-12 05:45:05,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:45:05,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:45:05,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:45:05,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:45:05,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-07-12 05:45:05,405 INFO L87 Difference]: Start difference. First operand 3080 states and 5020 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-12 05:45:06,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:45:06,173 INFO L93 Difference]: Finished difference Result 3196 states and 5207 transitions. [2022-07-12 05:45:06,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:45:06,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 106 [2022-07-12 05:45:06,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:45:06,187 INFO L225 Difference]: With dead ends: 3196 [2022-07-12 05:45:06,187 INFO L226 Difference]: Without dead ends: 3181 [2022-07-12 05:45:06,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-07-12 05:45:06,190 INFO L413 NwaCegarLoop]: 817 mSDtfsCounter, 800 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 05:45:06,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 1464 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 05:45:06,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3181 states. [2022-07-12 05:45:06,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3181 to 3089. [2022-07-12 05:45:06,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3089 states, 2425 states have (on average 1.579381443298969) internal successors, (3830), 2543 states have internal predecessors, (3830), 512 states have call successors, (512), 118 states have call predecessors, (512), 151 states have return successors, (687), 499 states have call predecessors, (687), 507 states have call successors, (687) [2022-07-12 05:45:06,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 5029 transitions. [2022-07-12 05:45:06,709 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 5029 transitions. Word has length 106 [2022-07-12 05:45:06,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:45:06,709 INFO L495 AbstractCegarLoop]: Abstraction has 3089 states and 5029 transitions. [2022-07-12 05:45:06,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-12 05:45:06,709 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 5029 transitions. [2022-07-12 05:45:06,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-12 05:45:06,711 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:45:06,711 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:45:06,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 05:45:06,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:45:06,931 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:45:06,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:45:06,932 INFO L85 PathProgramCache]: Analyzing trace with hash 456499591, now seen corresponding path program 1 times [2022-07-12 05:45:06,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:45:06,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277620525] [2022-07-12 05:45:06,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:45:06,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:45:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:07,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:45:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:07,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:07,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:45:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:07,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:45:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:07,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:07,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:07,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:45:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:07,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:45:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:07,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 05:45:07,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:07,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:45:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:07,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 05:45:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:07,289 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 05:45:07,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:45:07,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277620525] [2022-07-12 05:45:07,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277620525] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:45:07,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:45:07,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:45:07,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886525482] [2022-07-12 05:45:07,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:45:07,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:45:07,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:45:07,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:45:07,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:45:07,292 INFO L87 Difference]: Start difference. First operand 3089 states and 5029 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-12 05:45:15,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:45:15,378 INFO L93 Difference]: Finished difference Result 4239 states and 7308 transitions. [2022-07-12 05:45:15,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-12 05:45:15,379 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2022-07-12 05:45:15,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:45:15,397 INFO L225 Difference]: With dead ends: 4239 [2022-07-12 05:45:15,397 INFO L226 Difference]: Without dead ends: 4224 [2022-07-12 05:45:15,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=206, Invalid=724, Unknown=0, NotChecked=0, Total=930 [2022-07-12 05:45:15,402 INFO L413 NwaCegarLoop]: 912 mSDtfsCounter, 3939 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 4633 mSolverCounterSat, 1383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4004 SdHoareTripleChecker+Valid, 2935 SdHoareTripleChecker+Invalid, 6016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1383 IncrementalHoareTripleChecker+Valid, 4633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-07-12 05:45:15,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4004 Valid, 2935 Invalid, 6016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1383 Valid, 4633 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-07-12 05:45:15,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4224 states. [2022-07-12 05:45:16,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4224 to 3089. [2022-07-12 05:45:16,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3089 states, 2425 states have (on average 1.5764948453608247) internal successors, (3823), 2543 states have internal predecessors, (3823), 512 states have call successors, (512), 118 states have call predecessors, (512), 151 states have return successors, (687), 499 states have call predecessors, (687), 507 states have call successors, (687) [2022-07-12 05:45:16,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 5022 transitions. [2022-07-12 05:45:16,107 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 5022 transitions. Word has length 112 [2022-07-12 05:45:16,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:45:16,107 INFO L495 AbstractCegarLoop]: Abstraction has 3089 states and 5022 transitions. [2022-07-12 05:45:16,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-12 05:45:16,107 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 5022 transitions. [2022-07-12 05:45:16,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-12 05:45:16,109 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:45:16,109 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:45:16,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 05:45:16,110 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:45:16,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:45:16,110 INFO L85 PathProgramCache]: Analyzing trace with hash 708799487, now seen corresponding path program 1 times [2022-07-12 05:45:16,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:45:16,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674434720] [2022-07-12 05:45:16,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:45:16,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:45:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:16,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:45:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:16,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:16,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:16,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:45:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:16,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:45:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:16,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:16,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:16,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:45:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:16,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:45:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:16,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 05:45:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:16,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:45:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:16,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 05:45:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:16,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 05:45:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:16,415 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-12 05:45:16,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:45:16,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674434720] [2022-07-12 05:45:16,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674434720] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:45:16,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:45:16,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 05:45:16,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700341334] [2022-07-12 05:45:16,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:45:16,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 05:45:16,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:45:16,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 05:45:16,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:45:16,418 INFO L87 Difference]: Start difference. First operand 3089 states and 5022 transitions. Second operand has 12 states, 12 states have (on average 7.583333333333333) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 05:45:30,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:45:30,995 INFO L93 Difference]: Finished difference Result 8053 states and 13877 transitions. [2022-07-12 05:45:30,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-07-12 05:45:30,996 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.583333333333333) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 3 states have call successors, (12) Word has length 123 [2022-07-12 05:45:30,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:45:31,017 INFO L225 Difference]: With dead ends: 8053 [2022-07-12 05:45:31,018 INFO L226 Difference]: Without dead ends: 5050 [2022-07-12 05:45:31,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=370, Invalid=1610, Unknown=0, NotChecked=0, Total=1980 [2022-07-12 05:45:31,028 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 6045 mSDsluCounter, 2208 mSDsCounter, 0 mSdLazyCounter, 8764 mSolverCounterSat, 2917 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6046 SdHoareTripleChecker+Valid, 3020 SdHoareTripleChecker+Invalid, 11681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2917 IncrementalHoareTripleChecker+Valid, 8764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-07-12 05:45:31,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6046 Valid, 3020 Invalid, 11681 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2917 Valid, 8764 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2022-07-12 05:45:31,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5050 states. [2022-07-12 05:45:31,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5050 to 3105. [2022-07-12 05:45:31,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3105 states, 2437 states have (on average 1.5699630693475586) internal successors, (3826), 2555 states have internal predecessors, (3826), 512 states have call successors, (512), 118 states have call predecessors, (512), 155 states have return successors, (728), 503 states have call predecessors, (728), 507 states have call successors, (728) [2022-07-12 05:45:31,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3105 states to 3105 states and 5066 transitions. [2022-07-12 05:45:31,659 INFO L78 Accepts]: Start accepts. Automaton has 3105 states and 5066 transitions. Word has length 123 [2022-07-12 05:45:31,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:45:31,660 INFO L495 AbstractCegarLoop]: Abstraction has 3105 states and 5066 transitions. [2022-07-12 05:45:31,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.583333333333333) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-12 05:45:31,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3105 states and 5066 transitions. [2022-07-12 05:45:31,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-12 05:45:31,662 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:45:31,662 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:45:31,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-12 05:45:31,662 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:45:31,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:45:31,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1146644955, now seen corresponding path program 1 times [2022-07-12 05:45:31,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:45:31,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574209607] [2022-07-12 05:45:31,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:45:31,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:45:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:31,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:45:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:31,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:31,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:45:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:31,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:45:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:31,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:31,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:31,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:45:31,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:31,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:45:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:31,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 05:45:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:32,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:45:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:32,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 05:45:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:32,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 05:45:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:32,018 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 05:45:32,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:45:32,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574209607] [2022-07-12 05:45:32,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574209607] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:45:32,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917692296] [2022-07-12 05:45:32,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:45:32,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:45:32,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:45:32,024 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) [2022-07-12 05:45:32,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 05:45:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:32,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 1471 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-12 05:45:32,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:45:32,453 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 05:45:32,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 05:45:32,745 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-12 05:45:32,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917692296] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 05:45:32,745 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 05:45:32,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 13 [2022-07-12 05:45:32,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534858648] [2022-07-12 05:45:32,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 05:45:32,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 05:45:32,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:45:32,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 05:45:32,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-12 05:45:32,747 INFO L87 Difference]: Start difference. First operand 3105 states and 5066 transitions. Second operand has 13 states, 13 states have (on average 10.76923076923077) internal successors, (140), 10 states have internal predecessors, (140), 6 states have call successors, (25), 8 states have call predecessors, (25), 5 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2022-07-12 05:45:45,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:45:45,983 INFO L93 Difference]: Finished difference Result 8008 states and 13657 transitions. [2022-07-12 05:45:45,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-12 05:45:45,986 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.76923076923077) internal successors, (140), 10 states have internal predecessors, (140), 6 states have call successors, (25), 8 states have call predecessors, (25), 5 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) Word has length 124 [2022-07-12 05:45:45,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:45:46,007 INFO L225 Difference]: With dead ends: 8008 [2022-07-12 05:45:46,008 INFO L226 Difference]: Without dead ends: 4983 [2022-07-12 05:45:46,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=279, Invalid=843, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 05:45:46,019 INFO L413 NwaCegarLoop]: 1093 mSDtfsCounter, 5275 mSDsluCounter, 3316 mSDsCounter, 0 mSdLazyCounter, 7650 mSolverCounterSat, 1889 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5333 SdHoareTripleChecker+Valid, 4409 SdHoareTripleChecker+Invalid, 9539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1889 IncrementalHoareTripleChecker+Valid, 7650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:45:46,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5333 Valid, 4409 Invalid, 9539 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1889 Valid, 7650 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2022-07-12 05:45:46,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4983 states. [2022-07-12 05:45:46,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4983 to 3508. [2022-07-12 05:45:46,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3508 states, 2757 states have (on average 1.557127312295974) internal successors, (4293), 2887 states have internal predecessors, (4293), 567 states have call successors, (567), 138 states have call predecessors, (567), 183 states have return successors, (820), 555 states have call predecessors, (820), 562 states have call successors, (820) [2022-07-12 05:45:46,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3508 states to 3508 states and 5680 transitions. [2022-07-12 05:45:46,729 INFO L78 Accepts]: Start accepts. Automaton has 3508 states and 5680 transitions. Word has length 124 [2022-07-12 05:45:46,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:45:46,730 INFO L495 AbstractCegarLoop]: Abstraction has 3508 states and 5680 transitions. [2022-07-12 05:45:46,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.76923076923077) internal successors, (140), 10 states have internal predecessors, (140), 6 states have call successors, (25), 8 states have call predecessors, (25), 5 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2022-07-12 05:45:46,730 INFO L276 IsEmpty]: Start isEmpty. Operand 3508 states and 5680 transitions. [2022-07-12 05:45:46,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-12 05:45:46,732 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:45:46,732 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:45:46,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 05:45:46,951 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,SelfDestructingSolverStorable21 [2022-07-12 05:45:46,951 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:45:46,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:45:46,951 INFO L85 PathProgramCache]: Analyzing trace with hash -2144101129, now seen corresponding path program 1 times [2022-07-12 05:45:46,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:45:46,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829593862] [2022-07-12 05:45:46,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:45:46,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:45:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:47,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:45:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:47,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:47,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:45:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:47,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:45:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:47,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:47,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:47,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:45:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:47,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:45:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:47,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:45:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:47,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:45:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:47,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 05:45:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:47,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-12 05:45:47,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:47,269 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 05:45:47,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:45:47,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829593862] [2022-07-12 05:45:47,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829593862] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:45:47,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:45:47,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:45:47,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004167220] [2022-07-12 05:45:47,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:45:47,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:45:47,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:45:47,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:45:47,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:45:47,270 INFO L87 Difference]: Start difference. First operand 3508 states and 5680 transitions. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-07-12 05:45:56,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:45:56,706 INFO L93 Difference]: Finished difference Result 8497 states and 14373 transitions. [2022-07-12 05:45:56,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-12 05:45:56,707 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 127 [2022-07-12 05:45:56,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:45:56,726 INFO L225 Difference]: With dead ends: 8497 [2022-07-12 05:45:56,726 INFO L226 Difference]: Without dead ends: 5073 [2022-07-12 05:45:56,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=165, Invalid=537, Unknown=0, NotChecked=0, Total=702 [2022-07-12 05:45:56,735 INFO L413 NwaCegarLoop]: 965 mSDtfsCounter, 4155 mSDsluCounter, 2786 mSDsCounter, 0 mSdLazyCounter, 5647 mSolverCounterSat, 1365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4212 SdHoareTripleChecker+Valid, 3751 SdHoareTripleChecker+Invalid, 7012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1365 IncrementalHoareTripleChecker+Valid, 5647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:45:56,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4212 Valid, 3751 Invalid, 7012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1365 Valid, 5647 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-07-12 05:45:56,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5073 states. [2022-07-12 05:45:57,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5073 to 3805. [2022-07-12 05:45:57,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3805 states, 3010 states have (on average 1.5471760797342193) internal successors, (4657), 3140 states have internal predecessors, (4657), 591 states have call successors, (591), 158 states have call predecessors, (591), 203 states have return successors, (820), 579 states have call predecessors, (820), 586 states have call successors, (820) [2022-07-12 05:45:57,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3805 states to 3805 states and 6068 transitions. [2022-07-12 05:45:57,471 INFO L78 Accepts]: Start accepts. Automaton has 3805 states and 6068 transitions. Word has length 127 [2022-07-12 05:45:57,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:45:57,471 INFO L495 AbstractCegarLoop]: Abstraction has 3805 states and 6068 transitions. [2022-07-12 05:45:57,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 4 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-07-12 05:45:57,471 INFO L276 IsEmpty]: Start isEmpty. Operand 3805 states and 6068 transitions. [2022-07-12 05:45:57,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-12 05:45:57,473 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:45:57,473 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:45:57,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-12 05:45:57,474 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:45:57,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:45:57,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1656096214, now seen corresponding path program 1 times [2022-07-12 05:45:57,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:45:57,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209367844] [2022-07-12 05:45:57,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:45:57,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:45:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:57,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:45:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:57,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:57,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:57,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:45:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:57,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:45:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:57,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:57,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:57,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:45:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:57,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:45:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:57,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 05:45:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:57,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-12 05:45:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:57,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:45:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:57,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:45:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:57,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 05:45:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:57,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:45:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:57,755 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-12 05:45:57,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:45:57,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209367844] [2022-07-12 05:45:57,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209367844] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:45:57,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:45:57,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 05:45:57,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619838776] [2022-07-12 05:45:57,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:45:57,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 05:45:57,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:45:57,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 05:45:57,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-12 05:45:57,756 INFO L87 Difference]: Start difference. First operand 3805 states and 6068 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:46:11,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:46:11,295 INFO L93 Difference]: Finished difference Result 17117 states and 29795 transitions. [2022-07-12 05:46:11,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-12 05:46:11,296 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 133 [2022-07-12 05:46:11,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:46:11,363 INFO L225 Difference]: With dead ends: 17117 [2022-07-12 05:46:11,364 INFO L226 Difference]: Without dead ends: 13402 [2022-07-12 05:46:11,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2022-07-12 05:46:11,384 INFO L413 NwaCegarLoop]: 1202 mSDtfsCounter, 5465 mSDsluCounter, 1837 mSDsCounter, 0 mSdLazyCounter, 4619 mSolverCounterSat, 2257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5524 SdHoareTripleChecker+Valid, 3039 SdHoareTripleChecker+Invalid, 6876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2257 IncrementalHoareTripleChecker+Valid, 4619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:46:11,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5524 Valid, 3039 Invalid, 6876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2257 Valid, 4619 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2022-07-12 05:46:11,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13402 states. [2022-07-12 05:46:13,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13402 to 9486. [2022-07-12 05:46:13,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9486 states, 7249 states have (on average 1.5316595392467927) internal successors, (11103), 7657 states have internal predecessors, (11103), 1734 states have call successors, (1734), 362 states have call predecessors, (1734), 502 states have return successors, (2542), 1708 states have call predecessors, (2542), 1729 states have call successors, (2542) [2022-07-12 05:46:13,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9486 states to 9486 states and 15379 transitions. [2022-07-12 05:46:13,748 INFO L78 Accepts]: Start accepts. Automaton has 9486 states and 15379 transitions. Word has length 133 [2022-07-12 05:46:13,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:46:13,749 INFO L495 AbstractCegarLoop]: Abstraction has 9486 states and 15379 transitions. [2022-07-12 05:46:13,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 5 states have internal predecessors, (97), 4 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:46:13,749 INFO L276 IsEmpty]: Start isEmpty. Operand 9486 states and 15379 transitions. [2022-07-12 05:46:13,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-07-12 05:46:13,751 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:46:13,751 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:46:13,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-12 05:46:13,752 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:46:13,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:46:13,752 INFO L85 PathProgramCache]: Analyzing trace with hash 646348994, now seen corresponding path program 1 times [2022-07-12 05:46:13,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:46:13,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438943633] [2022-07-12 05:46:13,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:46:13,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:46:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:13,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:46:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:13,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:13,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:46:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:13,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:46:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:14,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:14,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:14,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:14,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:46:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:14,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:46:14,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:14,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 05:46:14,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:14,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-12 05:46:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:14,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:46:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:14,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:46:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:14,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 05:46:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:14,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:46:14,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:14,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 05:46:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:14,087 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-12 05:46:14,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:46:14,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438943633] [2022-07-12 05:46:14,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438943633] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:46:14,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:46:14,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 05:46:14,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155442529] [2022-07-12 05:46:14,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:46:14,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 05:46:14,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:46:14,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 05:46:14,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-12 05:46:14,089 INFO L87 Difference]: Start difference. First operand 9486 states and 15379 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 5 states have internal predecessors, (101), 5 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-12 05:46:32,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:46:32,591 INFO L93 Difference]: Finished difference Result 40404 states and 74614 transitions. [2022-07-12 05:46:32,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-12 05:46:32,592 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 5 states have internal predecessors, (101), 5 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 141 [2022-07-12 05:46:32,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:46:32,794 INFO L225 Difference]: With dead ends: 40404 [2022-07-12 05:46:32,794 INFO L226 Difference]: Without dead ends: 31000 [2022-07-12 05:46:32,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2022-07-12 05:46:32,852 INFO L413 NwaCegarLoop]: 1115 mSDtfsCounter, 4358 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 2919 mSolverCounterSat, 1567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4424 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 4486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1567 IncrementalHoareTripleChecker+Valid, 2919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:46:32,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4424 Valid, 2790 Invalid, 4486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1567 Valid, 2919 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-07-12 05:46:32,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31000 states. [2022-07-12 05:46:38,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31000 to 20823. [2022-07-12 05:46:38,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20823 states, 15589 states have (on average 1.5281929565719417) internal successors, (23823), 16554 states have internal predecessors, (23823), 4174 states have call successors, (4174), 719 states have call predecessors, (4174), 1059 states have return successors, (6986), 4151 states have call predecessors, (6986), 4169 states have call successors, (6986) [2022-07-12 05:46:39,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20823 states to 20823 states and 34983 transitions. [2022-07-12 05:46:39,109 INFO L78 Accepts]: Start accepts. Automaton has 20823 states and 34983 transitions. Word has length 141 [2022-07-12 05:46:39,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:46:39,109 INFO L495 AbstractCegarLoop]: Abstraction has 20823 states and 34983 transitions. [2022-07-12 05:46:39,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 5 states have internal predecessors, (101), 5 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-12 05:46:39,110 INFO L276 IsEmpty]: Start isEmpty. Operand 20823 states and 34983 transitions. [2022-07-12 05:46:39,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-12 05:46:39,114 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:46:39,114 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:46:39,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-12 05:46:39,114 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:46:39,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:46:39,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1438434222, now seen corresponding path program 1 times [2022-07-12 05:46:39,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:46:39,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180679411] [2022-07-12 05:46:39,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:46:39,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:46:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:39,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:46:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:39,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:39,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:46:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:39,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:46:39,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:39,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:39,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:39,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:46:39,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:39,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:46:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:39,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 05:46:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:39,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-12 05:46:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:39,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:46:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:39,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:46:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:39,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 05:46:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:39,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:46:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:39,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 05:46:39,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:39,530 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-12 05:46:39,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:46:39,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180679411] [2022-07-12 05:46:39,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180679411] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:46:39,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:46:39,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 05:46:39,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79367313] [2022-07-12 05:46:39,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:46:39,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 05:46:39,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:46:39,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 05:46:39,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-12 05:46:39,532 INFO L87 Difference]: Start difference. First operand 20823 states and 34983 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 5 states have internal predecessors, (102), 5 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15)