./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec2_productSimulator.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_productSimulator.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 2d64e6d161e5f8e99ac9692262fb570feef163d955f29392931b456d77e49162 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 05:47:34,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 05:47:35,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 05:47:35,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 05:47:35,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 05:47:35,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 05:47:35,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 05:47:35,043 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 05:47:35,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 05:47:35,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 05:47:35,045 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 05:47:35,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 05:47:35,047 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 05:47:35,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 05:47:35,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 05:47:35,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 05:47:35,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 05:47:35,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 05:47:35,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 05:47:35,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 05:47:35,062 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 05:47:35,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 05:47:35,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 05:47:35,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 05:47:35,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 05:47:35,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 05:47:35,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 05:47:35,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 05:47:35,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 05:47:35,068 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 05:47:35,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 05:47:35,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 05:47:35,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 05:47:35,069 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 05:47:35,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 05:47:35,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 05:47:35,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 05:47:35,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 05:47:35,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 05:47:35,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 05:47:35,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 05:47:35,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 05:47:35,074 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 05:47:35,103 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 05:47:35,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 05:47:35,111 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 05:47:35,111 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 05:47:35,112 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 05:47:35,112 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 05:47:35,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 05:47:35,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 05:47:35,113 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 05:47:35,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 05:47:35,114 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 05:47:35,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 05:47:35,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 05:47:35,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 05:47:35,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 05:47:35,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 05:47:35,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 05:47:35,115 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 05:47:35,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 05:47:35,115 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 05:47:35,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 05:47:35,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 05:47:35,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 05:47:35,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 05:47:35,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 05:47:35,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 05:47:35,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 05:47:35,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 05:47:35,117 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 05:47:35,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 05:47:35,117 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 05:47:35,118 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 05:47:35,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 05:47:35,118 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d64e6d161e5f8e99ac9692262fb570feef163d955f29392931b456d77e49162 [2022-07-12 05:47:35,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 05:47:35,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 05:47:35,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 05:47:35,313 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 05:47:35,314 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 05:47:35,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_productSimulator.cil.c [2022-07-12 05:47:35,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73176050b/6ca65a0f330d4525ad675e3b7a4f6efd/FLAG661e7dbb1 [2022-07-12 05:47:35,781 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 05:47:35,782 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_productSimulator.cil.c [2022-07-12 05:47:35,798 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73176050b/6ca65a0f330d4525ad675e3b7a4f6efd/FLAG661e7dbb1 [2022-07-12 05:47:36,125 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73176050b/6ca65a0f330d4525ad675e3b7a4f6efd [2022-07-12 05:47:36,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 05:47:36,128 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 05:47:36,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 05:47:36,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 05:47:36,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 05:47:36,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 05:47:36" (1/1) ... [2022-07-12 05:47:36,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20a56bca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:36, skipping insertion in model container [2022-07-12 05:47:36,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 05:47:36" (1/1) ... [2022-07-12 05:47:36,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 05:47:36,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 05:47:36,319 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_productSimulator.cil.c[4370,4383] [2022-07-12 05:47:36,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 05:47:36,512 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 05:47:36,521 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_productSimulator.cil.c[4370,4383] [2022-07-12 05:47:36,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 05:47:36,624 INFO L208 MainTranslator]: Completed translation [2022-07-12 05:47:36,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:36 WrapperNode [2022-07-12 05:47:36,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 05:47:36,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 05:47:36,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 05:47:36,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 05:47:36,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:36" (1/1) ... [2022-07-12 05:47:36,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:36" (1/1) ... [2022-07-12 05:47:36,746 INFO L137 Inliner]: procedures = 110, calls = 382, calls flagged for inlining = 33, calls inlined = 29, statements flattened = 1030 [2022-07-12 05:47:36,746 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 05:47:36,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 05:47:36,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 05:47:36,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 05:47:36,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:36" (1/1) ... [2022-07-12 05:47:36,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:36" (1/1) ... [2022-07-12 05:47:36,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:36" (1/1) ... [2022-07-12 05:47:36,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:36" (1/1) ... [2022-07-12 05:47:36,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:36" (1/1) ... [2022-07-12 05:47:36,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:36" (1/1) ... [2022-07-12 05:47:36,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:36" (1/1) ... [2022-07-12 05:47:36,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 05:47:36,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 05:47:36,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 05:47:36,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 05:47:36,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:36" (1/1) ... [2022-07-12 05:47:36,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 05:47:36,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:47:36,857 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 05:47:36,871 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 05:47:36,888 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2022-07-12 05:47:36,888 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2022-07-12 05:47:36,888 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-07-12 05:47:36,888 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-07-12 05:47:36,889 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-07-12 05:47:36,889 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-07-12 05:47:36,889 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__before__twothirdsfull [2022-07-12 05:47:36,891 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__before__twothirdsfull [2022-07-12 05:47:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2022-07-12 05:47:36,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2022-07-12 05:47:36,892 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-12 05:47:36,892 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-12 05:47:36,892 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__before__empty [2022-07-12 05:47:36,892 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__before__empty [2022-07-12 05:47:36,892 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-07-12 05:47:36,893 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-07-12 05:47:36,893 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-07-12 05:47:36,893 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-07-12 05:47:36,893 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-07-12 05:47:36,893 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-07-12 05:47:36,893 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__before__weight [2022-07-12 05:47:36,894 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__before__weight [2022-07-12 05:47:36,894 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2022-07-12 05:47:36,894 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2022-07-12 05:47:36,894 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-07-12 05:47:36,894 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-07-12 05:47:36,894 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-07-12 05:47:36,894 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-07-12 05:47:36,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 05:47:36,895 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2022-07-12 05:47:36,895 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2022-07-12 05:47:36,895 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-07-12 05:47:36,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-07-12 05:47:36,896 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-07-12 05:47:36,896 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-07-12 05:47:36,896 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__before__overloaded [2022-07-12 05:47:36,896 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__before__overloaded [2022-07-12 05:47:36,896 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-12 05:47:36,897 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-12 05:47:36,897 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2022-07-12 05:47:36,897 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2022-07-12 05:47:36,897 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2022-07-12 05:47:36,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2022-07-12 05:47:36,898 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-07-12 05:47:36,898 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-07-12 05:47:36,898 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__before__weight [2022-07-12 05:47:36,898 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__before__weight [2022-07-12 05:47:36,898 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__before__executivefloor [2022-07-12 05:47:36,898 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__before__executivefloor [2022-07-12 05:47:36,898 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-07-12 05:47:36,899 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-07-12 05:47:36,899 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__before__executivefloor [2022-07-12 05:47:36,899 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__before__executivefloor [2022-07-12 05:47:36,900 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-07-12 05:47:36,901 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-07-12 05:47:36,901 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-07-12 05:47:36,901 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-07-12 05:47:36,902 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-07-12 05:47:36,902 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-07-12 05:47:36,903 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-07-12 05:47:36,903 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-07-12 05:47:36,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 05:47:36,903 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2022-07-12 05:47:36,903 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2022-07-12 05:47:36,904 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-07-12 05:47:36,904 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-07-12 05:47:36,904 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__before__twothirdsfull [2022-07-12 05:47:36,904 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__before__twothirdsfull [2022-07-12 05:47:36,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 05:47:36,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 05:47:36,905 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-07-12 05:47:36,905 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-07-12 05:47:37,038 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 05:47:37,040 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 05:47:37,804 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 05:47:37,816 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 05:47:37,816 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 05:47:37,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 05:47:37 BoogieIcfgContainer [2022-07-12 05:47:37,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 05:47:37,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 05:47:37,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 05:47:37,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 05:47:37,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 05:47:36" (1/3) ... [2022-07-12 05:47:37,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a6b9b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 05:47:37, skipping insertion in model container [2022-07-12 05:47:37,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:36" (2/3) ... [2022-07-12 05:47:37,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a6b9b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 05:47:37, skipping insertion in model container [2022-07-12 05:47:37,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 05:47:37" (3/3) ... [2022-07-12 05:47:37,825 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_productSimulator.cil.c [2022-07-12 05:47:37,834 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 05:47:37,834 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 05:47:37,894 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 05:47:37,899 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@50801e36, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3551b625 [2022-07-12 05:47:37,900 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 05:47:37,909 INFO L276 IsEmpty]: Start isEmpty. Operand has 675 states, 514 states have (on average 1.6478599221789882) internal successors, (847), 541 states have internal predecessors, (847), 125 states have call successors, (125), 34 states have call predecessors, (125), 34 states have return successors, (125), 117 states have call predecessors, (125), 125 states have call successors, (125) [2022-07-12 05:47:37,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-12 05:47:37,927 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:47:37,928 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:47:37,928 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:47:37,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:47:37,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1079928857, now seen corresponding path program 1 times [2022-07-12 05:47:37,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:47:37,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399998130] [2022-07-12 05:47:37,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:47:37,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:47:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:38,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:47:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:38,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:47:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:38,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:47:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:38,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:47:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:38,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:47:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:38,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:47:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:38,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:38,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:38,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:47:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:38,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:47:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:38,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:38,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:38,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:47:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:38,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:38,588 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:47:38,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:47:38,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399998130] [2022-07-12 05:47:38,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399998130] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:47:38,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:47:38,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 05:47:38,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996906609] [2022-07-12 05:47:38,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:47:38,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 05:47:38,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:47:38,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 05:47:38,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-12 05:47:38,633 INFO L87 Difference]: Start difference. First operand has 675 states, 514 states have (on average 1.6478599221789882) internal successors, (847), 541 states have internal predecessors, (847), 125 states have call successors, (125), 34 states have call predecessors, (125), 34 states have return successors, (125), 117 states have call predecessors, (125), 125 states have call successors, (125) Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:47:45,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:47:45,203 INFO L93 Difference]: Finished difference Result 1675 states and 2847 transitions. [2022-07-12 05:47:45,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 05:47:45,206 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 91 [2022-07-12 05:47:45,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:47:45,229 INFO L225 Difference]: With dead ends: 1675 [2022-07-12 05:47:45,229 INFO L226 Difference]: Without dead ends: 1008 [2022-07-12 05:47:45,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:47:45,241 INFO L413 NwaCegarLoop]: 1012 mSDtfsCounter, 1173 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 4853 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 2217 SdHoareTripleChecker+Invalid, 5226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 4853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:47:45,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1285 Valid, 2217 Invalid, 5226 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [373 Valid, 4853 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-07-12 05:47:45,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2022-07-12 05:47:45,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 667. [2022-07-12 05:47:45,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 508 states have (on average 1.639763779527559) internal successors, (833), 533 states have internal predecessors, (833), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2022-07-12 05:47:45,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 1078 transitions. [2022-07-12 05:47:45,395 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 1078 transitions. Word has length 91 [2022-07-12 05:47:45,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:47:45,396 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 1078 transitions. [2022-07-12 05:47:45,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:47:45,396 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 1078 transitions. [2022-07-12 05:47:45,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-12 05:47:45,401 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:47:45,401 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:47:45,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 05:47:45,401 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:47:45,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:47:45,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1333921498, now seen corresponding path program 1 times [2022-07-12 05:47:45,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:47:45,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271122604] [2022-07-12 05:47:45,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:47:45,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:47:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:45,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:47:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:45,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:47:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:45,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:47:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:45,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:47:45,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:45,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:47:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:45,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:47:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:45,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:45,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:47:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:45,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 05:47:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:45,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:45,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:45,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:47:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:45,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:45,769 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:47:45,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:47:45,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271122604] [2022-07-12 05:47:45,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271122604] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:47:45,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:47:45,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:47:45,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064602463] [2022-07-12 05:47:45,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:47:45,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:47:45,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:47:45,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:47:45,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:47:45,773 INFO L87 Difference]: Start difference. First operand 667 states and 1078 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:47:51,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:47:51,018 INFO L93 Difference]: Finished difference Result 1638 states and 2779 transitions. [2022-07-12 05:47:51,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 05:47:51,019 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 94 [2022-07-12 05:47:51,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:47:51,026 INFO L225 Difference]: With dead ends: 1638 [2022-07-12 05:47:51,026 INFO L226 Difference]: Without dead ends: 1008 [2022-07-12 05:47:51,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 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 05:47:51,029 INFO L413 NwaCegarLoop]: 993 mSDtfsCounter, 2250 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 3328 mSolverCounterSat, 808 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 1852 SdHoareTripleChecker+Invalid, 4136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 808 IncrementalHoareTripleChecker+Valid, 3328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-12 05:47:51,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2361 Valid, 1852 Invalid, 4136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [808 Valid, 3328 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-07-12 05:47:51,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2022-07-12 05:47:51,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 667. [2022-07-12 05:47:51,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 508 states have (on average 1.6377952755905512) internal successors, (832), 533 states have internal predecessors, (832), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2022-07-12 05:47:51,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 1077 transitions. [2022-07-12 05:47:51,109 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 1077 transitions. Word has length 94 [2022-07-12 05:47:51,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:47:51,111 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 1077 transitions. [2022-07-12 05:47:51,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:47:51,112 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 1077 transitions. [2022-07-12 05:47:51,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-12 05:47:51,116 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:47:51,116 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:47:51,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 05:47:51,117 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:47:51,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:47:51,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1138356604, now seen corresponding path program 1 times [2022-07-12 05:47:51,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:47:51,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526671400] [2022-07-12 05:47:51,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:47:51,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:47:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:47:51,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:47:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:47:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:47:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:47:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:47:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:47:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:47:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:47:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,457 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:47:51,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:47:51,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526671400] [2022-07-12 05:47:51,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526671400] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:47:51,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:47:51,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:47:51,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752146671] [2022-07-12 05:47:51,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:47:51,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:47:51,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:47:51,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:47:51,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:47:51,459 INFO L87 Difference]: Start difference. First operand 667 states and 1077 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:47:56,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:47:56,840 INFO L93 Difference]: Finished difference Result 1638 states and 2778 transitions. [2022-07-12 05:47:56,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 05:47:56,841 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 95 [2022-07-12 05:47:56,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:47:56,846 INFO L225 Difference]: With dead ends: 1638 [2022-07-12 05:47:56,846 INFO L226 Difference]: Without dead ends: 1008 [2022-07-12 05:47:56,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 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 05:47:56,849 INFO L413 NwaCegarLoop]: 987 mSDtfsCounter, 1707 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 3519 mSolverCounterSat, 593 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1817 SdHoareTripleChecker+Valid, 1835 SdHoareTripleChecker+Invalid, 4112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 593 IncrementalHoareTripleChecker+Valid, 3519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-07-12 05:47:56,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1817 Valid, 1835 Invalid, 4112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [593 Valid, 3519 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-07-12 05:47:56,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2022-07-12 05:47:56,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 667. [2022-07-12 05:47:56,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 508 states have (on average 1.6358267716535433) internal successors, (831), 533 states have internal predecessors, (831), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2022-07-12 05:47:56,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 1076 transitions. [2022-07-12 05:47:56,902 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 1076 transitions. Word has length 95 [2022-07-12 05:47:56,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:47:56,902 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 1076 transitions. [2022-07-12 05:47:56,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:47:56,903 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 1076 transitions. [2022-07-12 05:47:56,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-12 05:47:56,904 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:47:56,904 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:47:56,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 05:47:56,905 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:47:56,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:47:56,905 INFO L85 PathProgramCache]: Analyzing trace with hash 258613534, now seen corresponding path program 1 times [2022-07-12 05:47:56,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:47:56,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659936922] [2022-07-12 05:47:56,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:47:56,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:47:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:56,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:47:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:56,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:47:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:56,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:47:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:56,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:47:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:56,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:47:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:47:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:47:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 05:47:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:47:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:57,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,224 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:47:57,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:47:57,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659936922] [2022-07-12 05:47:57,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659936922] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:47:57,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:47:57,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:47:57,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058708323] [2022-07-12 05:47:57,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:47:57,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:47:57,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:47:57,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:47:57,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:47:57,227 INFO L87 Difference]: Start difference. First operand 667 states and 1076 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:48:02,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:02,210 INFO L93 Difference]: Finished difference Result 1638 states and 2777 transitions. [2022-07-12 05:48:02,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 05:48:02,211 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 96 [2022-07-12 05:48:02,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:02,216 INFO L225 Difference]: With dead ends: 1638 [2022-07-12 05:48:02,216 INFO L226 Difference]: Without dead ends: 1008 [2022-07-12 05:48:02,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 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 05:48:02,219 INFO L413 NwaCegarLoop]: 994 mSDtfsCounter, 1704 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 3392 mSolverCounterSat, 590 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1817 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 3982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 590 IncrementalHoareTripleChecker+Valid, 3392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:02,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1817 Valid, 1873 Invalid, 3982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [590 Valid, 3392 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-12 05:48:02,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2022-07-12 05:48:02,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 667. [2022-07-12 05:48:02,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 508 states have (on average 1.6338582677165354) internal successors, (830), 533 states have internal predecessors, (830), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2022-07-12 05:48:02,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 1075 transitions. [2022-07-12 05:48:02,279 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 1075 transitions. Word has length 96 [2022-07-12 05:48:02,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:02,279 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 1075 transitions. [2022-07-12 05:48:02,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:48:02,280 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 1075 transitions. [2022-07-12 05:48:02,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-12 05:48:02,281 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:02,281 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:02,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 05:48:02,281 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:02,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:02,282 INFO L85 PathProgramCache]: Analyzing trace with hash -355816512, now seen corresponding path program 1 times [2022-07-12 05:48:02,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:02,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421745061] [2022-07-12 05:48:02,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:02,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:02,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:48:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:02,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:02,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:48:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:02,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:48:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:02,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:48:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:02,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:48:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:02,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:02,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 05:48:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:02,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 05:48:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:02,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:02,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:02,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:48:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:02,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:02,610 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:48:02,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:02,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421745061] [2022-07-12 05:48:02,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421745061] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:02,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:02,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:48:02,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454938278] [2022-07-12 05:48:02,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:02,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:48:02,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:02,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:48:02,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:48:02,614 INFO L87 Difference]: Start difference. First operand 667 states and 1075 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:48:07,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:07,595 INFO L93 Difference]: Finished difference Result 1638 states and 2776 transitions. [2022-07-12 05:48:07,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 05:48:07,596 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 97 [2022-07-12 05:48:07,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:07,600 INFO L225 Difference]: With dead ends: 1638 [2022-07-12 05:48:07,600 INFO L226 Difference]: Without dead ends: 1008 [2022-07-12 05:48:07,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 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 05:48:07,603 INFO L413 NwaCegarLoop]: 989 mSDtfsCounter, 1702 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 3403 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1813 SdHoareTripleChecker+Valid, 1847 SdHoareTripleChecker+Invalid, 3998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 3403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:07,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1813 Valid, 1847 Invalid, 3998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 3403 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-12 05:48:07,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2022-07-12 05:48:07,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 667. [2022-07-12 05:48:07,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 508 states have (on average 1.6318897637795275) internal successors, (829), 533 states have internal predecessors, (829), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2022-07-12 05:48:07,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 1074 transitions. [2022-07-12 05:48:07,657 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 1074 transitions. Word has length 97 [2022-07-12 05:48:07,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:07,657 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 1074 transitions. [2022-07-12 05:48:07,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:48:07,658 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 1074 transitions. [2022-07-12 05:48:07,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-12 05:48:07,659 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:07,659 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:07,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 05:48:07,659 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:07,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:07,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1335477406, now seen corresponding path program 1 times [2022-07-12 05:48:07,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:07,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338664131] [2022-07-12 05:48:07,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:07,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:07,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:48:07,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:07,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:07,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:48:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:07,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:48:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:07,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:48:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:07,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:48:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:07,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:07,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:07,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 05:48:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:07,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 05:48:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:07,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:08,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:08,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:08,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:48:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:08,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:08,015 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:48:08,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:08,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338664131] [2022-07-12 05:48:08,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338664131] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:08,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:08,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:48:08,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048990313] [2022-07-12 05:48:08,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:08,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:48:08,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:08,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:48:08,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:48:08,018 INFO L87 Difference]: Start difference. First operand 667 states and 1074 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:48:13,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:13,058 INFO L93 Difference]: Finished difference Result 1638 states and 2775 transitions. [2022-07-12 05:48:13,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 05:48:13,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 98 [2022-07-12 05:48:13,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:13,063 INFO L225 Difference]: With dead ends: 1638 [2022-07-12 05:48:13,063 INFO L226 Difference]: Without dead ends: 1008 [2022-07-12 05:48:13,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:48:13,069 INFO L413 NwaCegarLoop]: 993 mSDtfsCounter, 1697 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 3421 mSolverCounterSat, 584 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1809 SdHoareTripleChecker+Valid, 1863 SdHoareTripleChecker+Invalid, 4005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 584 IncrementalHoareTripleChecker+Valid, 3421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:13,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1809 Valid, 1863 Invalid, 4005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [584 Valid, 3421 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-07-12 05:48:13,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2022-07-12 05:48:13,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 667. [2022-07-12 05:48:13,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 508 states have (on average 1.6299212598425197) internal successors, (828), 533 states have internal predecessors, (828), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2022-07-12 05:48:13,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 1073 transitions. [2022-07-12 05:48:13,122 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 1073 transitions. Word has length 98 [2022-07-12 05:48:13,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:13,123 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 1073 transitions. [2022-07-12 05:48:13,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:48:13,123 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 1073 transitions. [2022-07-12 05:48:13,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 05:48:13,125 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:13,125 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:13,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 05:48:13,125 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:13,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:13,126 INFO L85 PathProgramCache]: Analyzing trace with hash -752392700, now seen corresponding path program 1 times [2022-07-12 05:48:13,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:13,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487778845] [2022-07-12 05:48:13,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:13,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:48:13,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:48:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:48:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:48:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:48:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:48:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 05:48:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:48:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,496 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:48:13,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:13,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487778845] [2022-07-12 05:48:13,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487778845] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:13,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:13,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 05:48:13,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254526548] [2022-07-12 05:48:13,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:13,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 05:48:13,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:13,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 05:48:13,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:48:13,498 INFO L87 Difference]: Start difference. First operand 667 states and 1073 transitions. Second operand has 11 states, 10 states have (on average 6.4) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-07-12 05:48:20,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:20,623 INFO L93 Difference]: Finished difference Result 1615 states and 2725 transitions. [2022-07-12 05:48:20,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 05:48:20,623 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.4) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 99 [2022-07-12 05:48:20,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:20,628 INFO L225 Difference]: With dead ends: 1615 [2022-07-12 05:48:20,628 INFO L226 Difference]: Without dead ends: 1034 [2022-07-12 05:48:20,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2022-07-12 05:48:20,631 INFO L413 NwaCegarLoop]: 985 mSDtfsCounter, 2846 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 6829 mSolverCounterSat, 1086 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2887 SdHoareTripleChecker+Valid, 2662 SdHoareTripleChecker+Invalid, 7915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1086 IncrementalHoareTripleChecker+Valid, 6829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:20,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2887 Valid, 2662 Invalid, 7915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1086 Valid, 6829 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-07-12 05:48:20,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2022-07-12 05:48:20,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 680. [2022-07-12 05:48:20,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 518 states have (on average 1.6274131274131274) internal successors, (843), 545 states have internal predecessors, (843), 126 states have call successors, (126), 34 states have call predecessors, (126), 35 states have return successors, (123), 117 states have call predecessors, (123), 121 states have call successors, (123) [2022-07-12 05:48:20,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 1092 transitions. [2022-07-12 05:48:20,693 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 1092 transitions. Word has length 99 [2022-07-12 05:48:20,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:20,693 INFO L495 AbstractCegarLoop]: Abstraction has 680 states and 1092 transitions. [2022-07-12 05:48:20,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.4) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-07-12 05:48:20,693 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 1092 transitions. [2022-07-12 05:48:20,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-12 05:48:20,696 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:20,696 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:20,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 05:48:20,696 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:20,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:20,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1617041285, now seen corresponding path program 1 times [2022-07-12 05:48:20,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:20,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846733509] [2022-07-12 05:48:20,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:20,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:20,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:20,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:48:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:20,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:20,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:48:20,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:20,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:48:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:20,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:48:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:20,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:48:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:20,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:20,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:48:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:20,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 05:48:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:20,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:20,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:20,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:48:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:20,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:20,966 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:48:20,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:20,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846733509] [2022-07-12 05:48:20,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846733509] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:20,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:20,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:48:20,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071429497] [2022-07-12 05:48:20,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:20,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:48:20,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:20,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:48:20,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:48:20,967 INFO L87 Difference]: Start difference. First operand 680 states and 1092 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:48:26,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:26,082 INFO L93 Difference]: Finished difference Result 1629 states and 2748 transitions. [2022-07-12 05:48:26,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 05:48:26,082 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 99 [2022-07-12 05:48:26,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:26,087 INFO L225 Difference]: With dead ends: 1629 [2022-07-12 05:48:26,087 INFO L226 Difference]: Without dead ends: 1030 [2022-07-12 05:48:26,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 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 05:48:26,090 INFO L413 NwaCegarLoop]: 943 mSDtfsCounter, 1736 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 3469 mSolverCounterSat, 655 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1844 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 4124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 655 IncrementalHoareTripleChecker+Valid, 3469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:26,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1844 Valid, 1796 Invalid, 4124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [655 Valid, 3469 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-07-12 05:48:26,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2022-07-12 05:48:26,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 680. [2022-07-12 05:48:26,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 518 states have (on average 1.6177606177606179) internal successors, (838), 545 states have internal predecessors, (838), 126 states have call successors, (126), 34 states have call predecessors, (126), 35 states have return successors, (123), 117 states have call predecessors, (123), 121 states have call successors, (123) [2022-07-12 05:48:26,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 1087 transitions. [2022-07-12 05:48:26,166 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 1087 transitions. Word has length 99 [2022-07-12 05:48:26,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:26,167 INFO L495 AbstractCegarLoop]: Abstraction has 680 states and 1087 transitions. [2022-07-12 05:48:26,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:48:26,167 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 1087 transitions. [2022-07-12 05:48:26,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-12 05:48:26,168 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:26,168 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:26,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 05:48:26,169 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:26,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:26,169 INFO L85 PathProgramCache]: Analyzing trace with hash -445353755, now seen corresponding path program 1 times [2022-07-12 05:48:26,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:26,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798336369] [2022-07-12 05:48:26,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:26,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:26,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:48:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:26,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:26,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:48:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:26,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:48:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:26,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:48:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:26,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:48:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:26,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:26,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:48:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:26,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 05:48:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:26,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:26,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:26,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:48:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:26,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:26,425 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:48:26,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:26,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798336369] [2022-07-12 05:48:26,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798336369] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:26,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:26,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:48:26,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697329691] [2022-07-12 05:48:26,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:26,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:48:26,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:26,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:48:26,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:48:26,428 INFO L87 Difference]: Start difference. First operand 680 states and 1087 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:48:31,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:31,426 INFO L93 Difference]: Finished difference Result 1629 states and 2743 transitions. [2022-07-12 05:48:31,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 05:48:31,426 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 100 [2022-07-12 05:48:31,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:31,431 INFO L225 Difference]: With dead ends: 1629 [2022-07-12 05:48:31,431 INFO L226 Difference]: Without dead ends: 1030 [2022-07-12 05:48:31,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 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 05:48:31,433 INFO L413 NwaCegarLoop]: 939 mSDtfsCounter, 1738 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 3421 mSolverCounterSat, 646 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1850 SdHoareTripleChecker+Valid, 1801 SdHoareTripleChecker+Invalid, 4067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 646 IncrementalHoareTripleChecker+Valid, 3421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:31,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1850 Valid, 1801 Invalid, 4067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [646 Valid, 3421 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-07-12 05:48:31,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2022-07-12 05:48:31,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 680. [2022-07-12 05:48:31,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 518 states have (on average 1.6081081081081081) internal successors, (833), 545 states have internal predecessors, (833), 126 states have call successors, (126), 34 states have call predecessors, (126), 35 states have return successors, (123), 117 states have call predecessors, (123), 121 states have call successors, (123) [2022-07-12 05:48:31,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 1082 transitions. [2022-07-12 05:48:31,508 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 1082 transitions. Word has length 100 [2022-07-12 05:48:31,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:31,509 INFO L495 AbstractCegarLoop]: Abstraction has 680 states and 1082 transitions. [2022-07-12 05:48:31,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:48:31,509 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 1082 transitions. [2022-07-12 05:48:31,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-12 05:48:31,510 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:31,510 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:31,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 05:48:31,511 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:31,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:31,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1576859744, now seen corresponding path program 1 times [2022-07-12 05:48:31,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:31,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544616108] [2022-07-12 05:48:31,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:31,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:48:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:48:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:48:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:48:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:48:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:48:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 05:48:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:31,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:48:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,745 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:48:31,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:31,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544616108] [2022-07-12 05:48:31,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544616108] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:31,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:31,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:48:31,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857380019] [2022-07-12 05:48:31,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:31,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:48:31,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:31,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:48:31,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:48:31,747 INFO L87 Difference]: Start difference. First operand 680 states and 1082 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:48:37,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:37,355 INFO L93 Difference]: Finished difference Result 1629 states and 2738 transitions. [2022-07-12 05:48:37,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 05:48:37,355 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2022-07-12 05:48:37,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:37,375 INFO L225 Difference]: With dead ends: 1629 [2022-07-12 05:48:37,375 INFO L226 Difference]: Without dead ends: 1030 [2022-07-12 05:48:37,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 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 05:48:37,377 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 1205 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 3609 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 4027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 3609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:37,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 1818 Invalid, 4027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 3609 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-07-12 05:48:37,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2022-07-12 05:48:37,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 680. [2022-07-12 05:48:37,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 518 states have (on average 1.5984555984555984) internal successors, (828), 545 states have internal predecessors, (828), 126 states have call successors, (126), 34 states have call predecessors, (126), 35 states have return successors, (123), 117 states have call predecessors, (123), 121 states have call successors, (123) [2022-07-12 05:48:37,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 1077 transitions. [2022-07-12 05:48:37,440 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 1077 transitions. Word has length 101 [2022-07-12 05:48:37,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:37,441 INFO L495 AbstractCegarLoop]: Abstraction has 680 states and 1077 transitions. [2022-07-12 05:48:37,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:48:37,441 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 1077 transitions. [2022-07-12 05:48:37,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-12 05:48:37,442 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:37,442 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:37,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 05:48:37,443 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:37,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:37,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1807909056, now seen corresponding path program 1 times [2022-07-12 05:48:37,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:37,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266783164] [2022-07-12 05:48:37,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:37,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:37,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:48:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:37,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:37,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:48:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:37,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:48:37,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:37,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:48:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:37,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:48:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:37,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:37,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:48:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:37,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 05:48:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:37,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:37,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:37,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:48:37,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:37,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:37,757 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:48:37,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:37,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266783164] [2022-07-12 05:48:37,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266783164] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:37,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:37,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:48:37,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893463422] [2022-07-12 05:48:37,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:37,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:48:37,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:37,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:48:37,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:48:37,759 INFO L87 Difference]: Start difference. First operand 680 states and 1077 transitions. Second operand has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-12 05:48:44,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:44,117 INFO L93 Difference]: Finished difference Result 1621 states and 2715 transitions. [2022-07-12 05:48:44,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 05:48:44,118 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 102 [2022-07-12 05:48:44,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:44,122 INFO L225 Difference]: With dead ends: 1621 [2022-07-12 05:48:44,123 INFO L226 Difference]: Without dead ends: 1037 [2022-07-12 05:48:44,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-07-12 05:48:44,125 INFO L413 NwaCegarLoop]: 972 mSDtfsCounter, 1758 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 6767 mSolverCounterSat, 603 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1869 SdHoareTripleChecker+Valid, 2695 SdHoareTripleChecker+Invalid, 7370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 603 IncrementalHoareTripleChecker+Valid, 6767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:44,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1869 Valid, 2695 Invalid, 7370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [603 Valid, 6767 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-07-12 05:48:44,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2022-07-12 05:48:44,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 680. [2022-07-12 05:48:44,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 518 states have (on average 1.5965250965250966) internal successors, (827), 545 states have internal predecessors, (827), 126 states have call successors, (126), 34 states have call predecessors, (126), 35 states have return successors, (123), 117 states have call predecessors, (123), 121 states have call successors, (123) [2022-07-12 05:48:44,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 1076 transitions. [2022-07-12 05:48:44,196 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 1076 transitions. Word has length 102 [2022-07-12 05:48:44,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:44,196 INFO L495 AbstractCegarLoop]: Abstraction has 680 states and 1076 transitions. [2022-07-12 05:48:44,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-12 05:48:44,197 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 1076 transitions. [2022-07-12 05:48:44,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-12 05:48:44,198 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:44,198 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:44,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 05:48:44,198 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:44,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:44,199 INFO L85 PathProgramCache]: Analyzing trace with hash 379391072, now seen corresponding path program 1 times [2022-07-12 05:48:44,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:44,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995518967] [2022-07-12 05:48:44,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:44,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:44,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:48:44,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:44,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:44,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:48:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:44,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:48:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:44,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:48:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:44,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:48:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:44,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:44,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:48:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:44,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 05:48:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:44,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:44,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:44,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:44,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:48:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:44,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:44,440 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:48:44,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:44,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995518967] [2022-07-12 05:48:44,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995518967] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:44,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:44,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:48:44,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877299428] [2022-07-12 05:48:44,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:44,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:48:44,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:44,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:48:44,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:48:44,441 INFO L87 Difference]: Start difference. First operand 680 states and 1076 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:48:49,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:49,259 INFO L93 Difference]: Finished difference Result 1629 states and 2730 transitions. [2022-07-12 05:48:49,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 05:48:49,259 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2022-07-12 05:48:49,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:49,263 INFO L225 Difference]: With dead ends: 1629 [2022-07-12 05:48:49,263 INFO L226 Difference]: Without dead ends: 1030 [2022-07-12 05:48:49,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 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 05:48:49,266 INFO L413 NwaCegarLoop]: 949 mSDtfsCounter, 1751 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 3315 mSolverCounterSat, 619 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1862 SdHoareTripleChecker+Valid, 1830 SdHoareTripleChecker+Invalid, 3934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 619 IncrementalHoareTripleChecker+Valid, 3315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:49,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1862 Valid, 1830 Invalid, 3934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [619 Valid, 3315 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-07-12 05:48:49,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2022-07-12 05:48:49,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 680. [2022-07-12 05:48:49,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 518 states have (on average 1.5868725868725868) internal successors, (822), 545 states have internal predecessors, (822), 126 states have call successors, (126), 34 states have call predecessors, (126), 35 states have return successors, (123), 117 states have call predecessors, (123), 121 states have call successors, (123) [2022-07-12 05:48:49,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 1071 transitions. [2022-07-12 05:48:49,338 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 1071 transitions. Word has length 102 [2022-07-12 05:48:49,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:49,338 INFO L495 AbstractCegarLoop]: Abstraction has 680 states and 1071 transitions. [2022-07-12 05:48:49,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:48:49,339 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 1071 transitions. [2022-07-12 05:48:49,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-12 05:48:49,340 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:49,340 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:49,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 05:48:49,340 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:49,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:49,340 INFO L85 PathProgramCache]: Analyzing trace with hash -122738531, now seen corresponding path program 1 times [2022-07-12 05:48:49,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:49,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261586328] [2022-07-12 05:48:49,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:49,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:48:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:48:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:48:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:48:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:48:49,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:48:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:48:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:48:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,620 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:48:49,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:49,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261586328] [2022-07-12 05:48:49,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261586328] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:49,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:49,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:48:49,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735216702] [2022-07-12 05:48:49,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:49,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:48:49,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:49,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:48:49,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:48:49,622 INFO L87 Difference]: Start difference. First operand 680 states and 1071 transitions. Second operand has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-12 05:48:56,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:56,149 INFO L93 Difference]: Finished difference Result 1642 states and 2740 transitions. [2022-07-12 05:48:56,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 05:48:56,149 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 103 [2022-07-12 05:48:56,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:56,153 INFO L225 Difference]: With dead ends: 1642 [2022-07-12 05:48:56,153 INFO L226 Difference]: Without dead ends: 1055 [2022-07-12 05:48:56,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 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 05:48:56,156 INFO L413 NwaCegarLoop]: 956 mSDtfsCounter, 1764 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 6758 mSolverCounterSat, 610 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 2631 SdHoareTripleChecker+Invalid, 7368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 610 IncrementalHoareTripleChecker+Valid, 6758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:56,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 2631 Invalid, 7368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [610 Valid, 6758 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-07-12 05:48:56,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2022-07-12 05:48:56,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 683. [2022-07-12 05:48:56,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 521 states have (on average 1.581573896353167) internal successors, (824), 548 states have internal predecessors, (824), 126 states have call successors, (126), 34 states have call predecessors, (126), 35 states have return successors, (123), 117 states have call predecessors, (123), 121 states have call successors, (123) [2022-07-12 05:48:56,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 1073 transitions. [2022-07-12 05:48:56,234 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 1073 transitions. Word has length 103 [2022-07-12 05:48:56,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:56,234 INFO L495 AbstractCegarLoop]: Abstraction has 683 states and 1073 transitions. [2022-07-12 05:48:56,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-12 05:48:56,234 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 1073 transitions. [2022-07-12 05:48:56,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-12 05:48:56,235 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:56,236 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:56,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 05:48:56,236 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:56,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:56,236 INFO L85 PathProgramCache]: Analyzing trace with hash -728144965, now seen corresponding path program 1 times [2022-07-12 05:48:56,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:56,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789121698] [2022-07-12 05:48:56,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:56,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:56,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:56,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:48:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:56,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:56,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:48:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:56,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:48:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:56,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:48:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:56,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:48:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:56,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:56,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:48:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:56,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:48:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:56,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:56,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:56,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:48:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:56,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:56,489 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:48:56,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:56,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789121698] [2022-07-12 05:48:56,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789121698] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:56,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:56,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:48:56,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922745281] [2022-07-12 05:48:56,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:56,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:48:56,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:56,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:48:56,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:48:56,492 INFO L87 Difference]: Start difference. First operand 683 states and 1073 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:49:01,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:49:01,303 INFO L93 Difference]: Finished difference Result 1638 states and 2731 transitions. [2022-07-12 05:49:01,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 05:49:01,304 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 103 [2022-07-12 05:49:01,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:49:01,308 INFO L225 Difference]: With dead ends: 1638 [2022-07-12 05:49:01,308 INFO L226 Difference]: Without dead ends: 1036 [2022-07-12 05:49:01,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 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 05:49:01,310 INFO L413 NwaCegarLoop]: 939 mSDtfsCounter, 2292 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 3227 mSolverCounterSat, 835 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2399 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 4062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 835 IncrementalHoareTripleChecker+Valid, 3227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:49:01,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2399 Valid, 1794 Invalid, 4062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [835 Valid, 3227 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-07-12 05:49:01,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2022-07-12 05:49:01,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 683. [2022-07-12 05:49:01,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 521 states have (on average 1.5719769673704416) internal successors, (819), 548 states have internal predecessors, (819), 126 states have call successors, (126), 34 states have call predecessors, (126), 35 states have return successors, (123), 117 states have call predecessors, (123), 121 states have call successors, (123) [2022-07-12 05:49:01,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 1068 transitions. [2022-07-12 05:49:01,392 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 1068 transitions. Word has length 103 [2022-07-12 05:49:01,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:49:01,392 INFO L495 AbstractCegarLoop]: Abstraction has 683 states and 1068 transitions. [2022-07-12 05:49:01,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:49:01,393 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 1068 transitions. [2022-07-12 05:49:01,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-12 05:49:01,394 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:49:01,394 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:49:01,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 05:49:01,394 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:49:01,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:49:01,395 INFO L85 PathProgramCache]: Analyzing trace with hash -250562117, now seen corresponding path program 1 times [2022-07-12 05:49:01,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:49:01,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108105259] [2022-07-12 05:49:01,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:49:01,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:49:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:01,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:49:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:01,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:49:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:01,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:49:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:01,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:49:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:01,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:49:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:01,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:49:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:01,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:01,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:49:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:01,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:49:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:01,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:01,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:01,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:49:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:01,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:01,679 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:49:01,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:49:01,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108105259] [2022-07-12 05:49:01,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108105259] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:49:01,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:49:01,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:49:01,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850452642] [2022-07-12 05:49:01,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:49:01,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:49:01,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:49:01,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:49:01,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:49:01,681 INFO L87 Difference]: Start difference. First operand 683 states and 1068 transitions. Second operand has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-12 05:49:08,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:49:08,215 INFO L93 Difference]: Finished difference Result 1648 states and 2737 transitions. [2022-07-12 05:49:08,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 05:49:08,215 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 104 [2022-07-12 05:49:08,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:49:08,225 INFO L225 Difference]: With dead ends: 1648 [2022-07-12 05:49:08,225 INFO L226 Difference]: Without dead ends: 1061 [2022-07-12 05:49:08,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 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 05:49:08,229 INFO L413 NwaCegarLoop]: 948 mSDtfsCounter, 1751 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 6692 mSolverCounterSat, 615 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1861 SdHoareTripleChecker+Valid, 2612 SdHoareTripleChecker+Invalid, 7307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 615 IncrementalHoareTripleChecker+Valid, 6692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:49:08,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1861 Valid, 2612 Invalid, 7307 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [615 Valid, 6692 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-07-12 05:49:08,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2022-07-12 05:49:08,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 687. [2022-07-12 05:49:08,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 525 states have (on average 1.5657142857142856) internal successors, (822), 552 states have internal predecessors, (822), 126 states have call successors, (126), 34 states have call predecessors, (126), 35 states have return successors, (123), 117 states have call predecessors, (123), 121 states have call successors, (123) [2022-07-12 05:49:08,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 1071 transitions. [2022-07-12 05:49:08,318 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 1071 transitions. Word has length 104 [2022-07-12 05:49:08,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:49:08,319 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 1071 transitions. [2022-07-12 05:49:08,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-12 05:49:08,319 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 1071 transitions. [2022-07-12 05:49:08,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-12 05:49:08,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:49:08,320 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:49:08,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 05:49:08,321 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:49:08,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:49:08,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1971174363, now seen corresponding path program 1 times [2022-07-12 05:49:08,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:49:08,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010899449] [2022-07-12 05:49:08,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:49:08,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:49:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:08,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:49:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:08,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:49:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:08,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:49:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:08,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:49:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:08,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:49:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:08,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:49:08,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:08,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:08,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:49:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:08,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:49:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:08,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:08,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:08,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:08,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:49:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:08,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:08,574 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:49:08,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:49:08,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010899449] [2022-07-12 05:49:08,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010899449] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:49:08,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:49:08,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:49:08,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705358010] [2022-07-12 05:49:08,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:49:08,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:49:08,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:49:08,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:49:08,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:49:08,577 INFO L87 Difference]: Start difference. First operand 687 states and 1071 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:49:13,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:49:13,522 INFO L93 Difference]: Finished difference Result 1686 states and 2776 transitions. [2022-07-12 05:49:13,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 05:49:13,523 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2022-07-12 05:49:13,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:49:13,527 INFO L225 Difference]: With dead ends: 1686 [2022-07-12 05:49:13,527 INFO L226 Difference]: Without dead ends: 1016 [2022-07-12 05:49:13,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 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 05:49:13,529 INFO L413 NwaCegarLoop]: 957 mSDtfsCounter, 1668 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 3320 mSolverCounterSat, 583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1778 SdHoareTripleChecker+Valid, 1828 SdHoareTripleChecker+Invalid, 3903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 3320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:49:13,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1778 Valid, 1828 Invalid, 3903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [583 Valid, 3320 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-07-12 05:49:13,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2022-07-12 05:49:13,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 668. [2022-07-12 05:49:13,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 509 states have (on average 1.5717092337917484) internal successors, (800), 534 states have internal predecessors, (800), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2022-07-12 05:49:13,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1045 transitions. [2022-07-12 05:49:13,640 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1045 transitions. Word has length 104 [2022-07-12 05:49:13,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:49:13,640 INFO L495 AbstractCegarLoop]: Abstraction has 668 states and 1045 transitions. [2022-07-12 05:49:13,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:49:13,641 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1045 transitions. [2022-07-12 05:49:13,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-12 05:49:13,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:49:13,642 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:49:13,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 05:49:13,642 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:49:13,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:49:13,643 INFO L85 PathProgramCache]: Analyzing trace with hash -746628296, now seen corresponding path program 1 times [2022-07-12 05:49:13,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:49:13,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255084082] [2022-07-12 05:49:13,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:49:13,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:49:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:13,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:49:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:13,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:49:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:13,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:49:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:13,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:49:13,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:13,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:49:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:13,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:49:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:13,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:13,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:49:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:13,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 05:49:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:13,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:13,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:13,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:13,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:49:13,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:13,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:13,921 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:49:13,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:49:13,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255084082] [2022-07-12 05:49:13,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255084082] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:49:13,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:49:13,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:49:13,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690619067] [2022-07-12 05:49:13,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:49:13,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:49:13,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:49:13,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:49:13,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:49:13,923 INFO L87 Difference]: Start difference. First operand 668 states and 1045 transitions. Second operand has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-12 05:49:20,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:49:20,965 INFO L93 Difference]: Finished difference Result 1621 states and 2691 transitions. [2022-07-12 05:49:20,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-12 05:49:20,965 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 105 [2022-07-12 05:49:20,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:49:20,971 INFO L225 Difference]: With dead ends: 1621 [2022-07-12 05:49:20,971 INFO L226 Difference]: Without dead ends: 1037 [2022-07-12 05:49:20,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 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 05:49:20,973 INFO L413 NwaCegarLoop]: 939 mSDtfsCounter, 1183 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 6748 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 2626 SdHoareTripleChecker+Invalid, 7149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 6748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-07-12 05:49:20,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1293 Valid, 2626 Invalid, 7149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 6748 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-07-12 05:49:20,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2022-07-12 05:49:21,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 673. [2022-07-12 05:49:21,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 514 states have (on average 1.566147859922179) internal successors, (805), 539 states have internal predecessors, (805), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2022-07-12 05:49:21,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 1050 transitions. [2022-07-12 05:49:21,083 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 1050 transitions. Word has length 105 [2022-07-12 05:49:21,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:49:21,083 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 1050 transitions. [2022-07-12 05:49:21,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-12 05:49:21,083 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 1050 transitions. [2022-07-12 05:49:21,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-12 05:49:21,084 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:49:21,085 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:49:21,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 05:49:21,085 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:49:21,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:49:21,085 INFO L85 PathProgramCache]: Analyzing trace with hash 171682984, now seen corresponding path program 1 times [2022-07-12 05:49:21,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:49:21,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890910707] [2022-07-12 05:49:21,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:49:21,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:49:21,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:21,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:49:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:21,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:49:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:21,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:49:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:21,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:49:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:21,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:49:21,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:21,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:49:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:21,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:21,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:49:21,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:21,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 05:49:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:21,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:21,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:21,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:21,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:21,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:49:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:21,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:21,387 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:49:21,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:49:21,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890910707] [2022-07-12 05:49:21,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890910707] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:49:21,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:49:21,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:49:21,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511517186] [2022-07-12 05:49:21,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:49:21,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:49:21,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:49:21,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:49:21,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:49:21,389 INFO L87 Difference]: Start difference. First operand 673 states and 1050 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:49:26,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:49:26,483 INFO L93 Difference]: Finished difference Result 1619 states and 2686 transitions. [2022-07-12 05:49:26,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 05:49:26,484 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 106 [2022-07-12 05:49:26,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:49:26,488 INFO L225 Difference]: With dead ends: 1619 [2022-07-12 05:49:26,488 INFO L226 Difference]: Without dead ends: 1014 [2022-07-12 05:49:26,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 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 05:49:26,490 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 1701 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 3309 mSolverCounterSat, 612 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1811 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 3921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 612 IncrementalHoareTripleChecker+Valid, 3309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-12 05:49:26,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1811 Valid, 1791 Invalid, 3921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [612 Valid, 3309 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-12 05:49:26,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2022-07-12 05:49:26,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 673. [2022-07-12 05:49:26,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 514 states have (on average 1.5583657587548638) internal successors, (801), 539 states have internal predecessors, (801), 125 states have call successors, (125), 34 states have call predecessors, (125), 33 states have return successors, (120), 116 states have call predecessors, (120), 120 states have call successors, (120) [2022-07-12 05:49:26,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 1046 transitions. [2022-07-12 05:49:26,585 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 1046 transitions. Word has length 106 [2022-07-12 05:49:26,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:49:26,586 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 1046 transitions. [2022-07-12 05:49:26,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-12 05:49:26,586 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 1046 transitions. [2022-07-12 05:49:26,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-12 05:49:26,588 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:49:26,588 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:49:26,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 05:49:26,588 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:49:26,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:49:26,588 INFO L85 PathProgramCache]: Analyzing trace with hash 524771366, now seen corresponding path program 1 times [2022-07-12 05:49:26,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:49:26,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269111922] [2022-07-12 05:49:26,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:49:26,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:49:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:26,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:49:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:26,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:49:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:26,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:49:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:26,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:49:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:26,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:49:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:26,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:49:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:26,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:26,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:49:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:26,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 05:49:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:26,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:26,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:26,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:49:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:26,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:26,860 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:49:26,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:49:26,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269111922] [2022-07-12 05:49:26,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269111922] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:49:26,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:49:26,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:49:26,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391224291] [2022-07-12 05:49:26,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:49:26,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:49:26,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:49:26,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:49:26,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:49:26,862 INFO L87 Difference]: Start difference. First operand 673 states and 1046 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-12 05:49:35,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:49:35,962 INFO L93 Difference]: Finished difference Result 2564 states and 4305 transitions. [2022-07-12 05:49:35,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 05:49:35,963 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 106 [2022-07-12 05:49:35,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:49:35,970 INFO L225 Difference]: With dead ends: 2564 [2022-07-12 05:49:35,970 INFO L226 Difference]: Without dead ends: 1988 [2022-07-12 05:49:35,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-07-12 05:49:35,973 INFO L413 NwaCegarLoop]: 1816 mSDtfsCounter, 6210 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 4404 mSolverCounterSat, 2396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6299 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 6800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2396 IncrementalHoareTripleChecker+Valid, 4404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:49:35,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6299 Valid, 2711 Invalid, 6800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2396 Valid, 4404 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2022-07-12 05:49:35,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1988 states. [2022-07-12 05:49:36,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1988 to 1302. [2022-07-12 05:49:36,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 1002 states have (on average 1.56187624750499) internal successors, (1565), 1045 states have internal predecessors, (1565), 234 states have call successors, (234), 66 states have call predecessors, (234), 65 states have return successors, (229), 223 states have call predecessors, (229), 229 states have call successors, (229) [2022-07-12 05:49:36,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 2028 transitions. [2022-07-12 05:49:36,183 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 2028 transitions. Word has length 106 [2022-07-12 05:49:36,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:49:36,184 INFO L495 AbstractCegarLoop]: Abstraction has 1302 states and 2028 transitions. [2022-07-12 05:49:36,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 4 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-12 05:49:36,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 2028 transitions. [2022-07-12 05:49:36,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-12 05:49:36,185 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:49:36,186 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:49:36,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 05:49:36,186 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:49:36,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:49:36,186 INFO L85 PathProgramCache]: Analyzing trace with hash -463267461, now seen corresponding path program 1 times [2022-07-12 05:49:36,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:49:36,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479659672] [2022-07-12 05:49:36,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:49:36,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:49:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:36,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:49:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:36,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:49:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:36,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:49:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:36,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:49:36,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:36,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:49:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:36,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:49:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:36,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:36,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:49:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:36,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 05:49:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:36,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:36,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:36,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:49:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:36,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:36,532 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:49:36,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:49:36,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479659672] [2022-07-12 05:49:36,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479659672] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:49:36,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:49:36,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:49:36,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35352139] [2022-07-12 05:49:36,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:49:36,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:49:36,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:49:36,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:49:36,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:49:36,535 INFO L87 Difference]: Start difference. First operand 1302 states and 2028 transitions. Second operand has 10 states, 10 states have (on average 7.2) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-07-12 05:49:51,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:49:51,738 INFO L93 Difference]: Finished difference Result 4906 states and 8807 transitions. [2022-07-12 05:49:51,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-12 05:49:51,739 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 107 [2022-07-12 05:49:51,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:49:51,758 INFO L225 Difference]: With dead ends: 4906 [2022-07-12 05:49:51,759 INFO L226 Difference]: Without dead ends: 4333 [2022-07-12 05:49:51,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2022-07-12 05:49:51,762 INFO L413 NwaCegarLoop]: 987 mSDtfsCounter, 3575 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 6739 mSolverCounterSat, 1916 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3716 SdHoareTripleChecker+Valid, 2257 SdHoareTripleChecker+Invalid, 8655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1916 IncrementalHoareTripleChecker+Valid, 6739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-07-12 05:49:51,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3716 Valid, 2257 Invalid, 8655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1916 Valid, 6739 Invalid, 0 Unknown, 0 Unchecked, 12.9s Time] [2022-07-12 05:49:51,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4333 states. [2022-07-12 05:49:52,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4333 to 2627. [2022-07-12 05:49:52,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 1959 states have (on average 1.5926493108728943) internal successors, (3120), 2059 states have internal predecessors, (3120), 535 states have call successors, (535), 123 states have call predecessors, (535), 132 states have return successors, (620), 524 states have call predecessors, (620), 530 states have call successors, (620) [2022-07-12 05:49:52,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 4275 transitions. [2022-07-12 05:49:52,336 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 4275 transitions. Word has length 107 [2022-07-12 05:49:52,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:49:52,336 INFO L495 AbstractCegarLoop]: Abstraction has 2627 states and 4275 transitions. [2022-07-12 05:49:52,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.2) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-07-12 05:49:52,337 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 4275 transitions. [2022-07-12 05:49:52,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-07-12 05:49:52,342 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:49:52,343 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:49:52,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 05:49:52,343 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:49:52,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:49:52,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1907178862, now seen corresponding path program 1 times [2022-07-12 05:49:52,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:49:52,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036236482] [2022-07-12 05:49:52,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:49:52,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:49:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:49:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:49:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:49:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:49:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:49:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:49:52,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:52,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:49:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 05:49:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:49:52,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:49:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:49:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:49:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:49:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 05:49:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 05:49:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:52,850 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:49:52,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:49:52,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036236482] [2022-07-12 05:49:52,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036236482] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:49:52,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:49:52,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-12 05:49:52,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109496599] [2022-07-12 05:49:52,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:49:52,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-12 05:49:52,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:49:52,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-12 05:49:52,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2022-07-12 05:49:52,853 INFO L87 Difference]: Start difference. First operand 2627 states and 4275 transitions. Second operand has 17 states, 17 states have (on average 6.0) internal successors, (102), 9 states have internal predecessors, (102), 4 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (20), 8 states have call predecessors, (20), 4 states have call successors, (20) [2022-07-12 05:50:03,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:50:03,269 INFO L93 Difference]: Finished difference Result 7336 states and 13058 transitions. [2022-07-12 05:50:03,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-12 05:50:03,269 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.0) internal successors, (102), 9 states have internal predecessors, (102), 4 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (20), 8 states have call predecessors, (20), 4 states have call successors, (20) Word has length 151 [2022-07-12 05:50:03,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:50:03,288 INFO L225 Difference]: With dead ends: 7336 [2022-07-12 05:50:03,288 INFO L226 Difference]: Without dead ends: 4886 [2022-07-12 05:50:03,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=350, Invalid=982, Unknown=0, NotChecked=0, Total=1332 [2022-07-12 05:50:03,297 INFO L413 NwaCegarLoop]: 896 mSDtfsCounter, 4345 mSDsluCounter, 2659 mSDsCounter, 0 mSdLazyCounter, 9542 mSolverCounterSat, 2109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4345 SdHoareTripleChecker+Valid, 3555 SdHoareTripleChecker+Invalid, 11651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2109 IncrementalHoareTripleChecker+Valid, 9542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-07-12 05:50:03,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4345 Valid, 3555 Invalid, 11651 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2109 Valid, 9542 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-07-12 05:50:03,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4886 states. [2022-07-12 05:50:03,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4886 to 2667. [2022-07-12 05:50:03,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 1987 states have (on average 1.584297936587821) internal successors, (3148), 2087 states have internal predecessors, (3148), 535 states have call successors, (535), 123 states have call predecessors, (535), 144 states have return successors, (652), 536 states have call predecessors, (652), 530 states have call successors, (652) [2022-07-12 05:50:03,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 4335 transitions. [2022-07-12 05:50:03,876 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 4335 transitions. Word has length 151 [2022-07-12 05:50:03,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:50:03,877 INFO L495 AbstractCegarLoop]: Abstraction has 2667 states and 4335 transitions. [2022-07-12 05:50:03,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.0) internal successors, (102), 9 states have internal predecessors, (102), 4 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (20), 8 states have call predecessors, (20), 4 states have call successors, (20) [2022-07-12 05:50:03,878 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 4335 transitions. [2022-07-12 05:50:03,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-12 05:50:03,884 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:50:03,885 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:50:03,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-12 05:50:03,885 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:50:03,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:50:03,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1505919072, now seen corresponding path program 1 times [2022-07-12 05:50:03,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:50:03,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58044913] [2022-07-12 05:50:03,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:50:03,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:50:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:03,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:50:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:03,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:50:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:03,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:50:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:03,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:50:03,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:03,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:50:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:03,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:50:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:04,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:04,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:50:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:04,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 05:50:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:04,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:04,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:04,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:04,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:50:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:04,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:50:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:04,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:04,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:50:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:04,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:50:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:04,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:04,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:50:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:04,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:50:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:04,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 05:50:04,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:04,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:04,373 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-12 05:50:04,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:50:04,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58044913] [2022-07-12 05:50:04,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58044913] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:50:04,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:50:04,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 05:50:04,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679033627] [2022-07-12 05:50:04,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:50:04,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 05:50:04,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:50:04,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 05:50:04,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:50:04,375 INFO L87 Difference]: Start difference. First operand 2667 states and 4335 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 7 states have internal predecessors, (100), 6 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2022-07-12 05:50:19,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:50:19,390 INFO L93 Difference]: Finished difference Result 11928 states and 21839 transitions. [2022-07-12 05:50:19,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-12 05:50:19,392 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 7 states have internal predecessors, (100), 6 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) Word has length 156 [2022-07-12 05:50:19,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:50:19,436 INFO L225 Difference]: With dead ends: 11928 [2022-07-12 05:50:19,436 INFO L226 Difference]: Without dead ends: 9438 [2022-07-12 05:50:19,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=343, Invalid=989, Unknown=0, NotChecked=0, Total=1332 [2022-07-12 05:50:19,450 INFO L413 NwaCegarLoop]: 1677 mSDtfsCounter, 9048 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 5310 mSolverCounterSat, 4643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9048 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 9953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4643 IncrementalHoareTripleChecker+Valid, 5310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:50:19,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9048 Valid, 3067 Invalid, 9953 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4643 Valid, 5310 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2022-07-12 05:50:19,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9438 states. [2022-07-12 05:50:20,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9438 to 5009. [2022-07-12 05:50:20,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5009 states, 3729 states have (on average 1.6098149637972647) internal successors, (6003), 3921 states have internal predecessors, (6003), 1014 states have call successors, (1014), 238 states have call predecessors, (1014), 265 states have return successors, (1228), 1009 states have call predecessors, (1228), 1009 states have call successors, (1228) [2022-07-12 05:50:20,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5009 states to 5009 states and 8245 transitions. [2022-07-12 05:50:20,640 INFO L78 Accepts]: Start accepts. Automaton has 5009 states and 8245 transitions. Word has length 156 [2022-07-12 05:50:20,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:50:20,641 INFO L495 AbstractCegarLoop]: Abstraction has 5009 states and 8245 transitions. [2022-07-12 05:50:20,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 7 states have internal predecessors, (100), 6 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2022-07-12 05:50:20,641 INFO L276 IsEmpty]: Start isEmpty. Operand 5009 states and 8245 transitions. [2022-07-12 05:50:20,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-12 05:50:20,650 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:50:20,650 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:20,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-12 05:50:20,651 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:50:20,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:50:20,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1208691304, now seen corresponding path program 1 times [2022-07-12 05:50:20,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:50:20,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323558269] [2022-07-12 05:50:20,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:50:20,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:50:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:20,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:50:20,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:20,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:50:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:20,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:50:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:20,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:50:20,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:20,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:50:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:20,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:50:20,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:20,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:20,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:50:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:20,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 05:50:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:20,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:21,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:21,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:50:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:21,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:21,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:50:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:21,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 05:50:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:21,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:50:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:21,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:21,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:50:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:21,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 05:50:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:21,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 05:50:21,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:21,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:21,087 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-07-12 05:50:21,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:50:21,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323558269] [2022-07-12 05:50:21,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323558269] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:50:21,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:50:21,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:50:21,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671248149] [2022-07-12 05:50:21,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:50:21,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:50:21,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:50:21,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:50:21,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:50:21,088 INFO L87 Difference]: Start difference. First operand 5009 states and 8245 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (21), 7 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-12 05:50:38,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:50:38,349 INFO L93 Difference]: Finished difference Result 22229 states and 40951 transitions. [2022-07-12 05:50:38,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-12 05:50:38,350 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (21), 7 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 157 [2022-07-12 05:50:38,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:50:38,427 INFO L225 Difference]: With dead ends: 22229 [2022-07-12 05:50:38,427 INFO L226 Difference]: Without dead ends: 17418 [2022-07-12 05:50:38,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=230, Invalid=526, Unknown=0, NotChecked=0, Total=756 [2022-07-12 05:50:38,445 INFO L413 NwaCegarLoop]: 1640 mSDtfsCounter, 4903 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 4297 mSolverCounterSat, 3205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4920 SdHoareTripleChecker+Valid, 2667 SdHoareTripleChecker+Invalid, 7502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3205 IncrementalHoareTripleChecker+Valid, 4297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-07-12 05:50:38,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4920 Valid, 2667 Invalid, 7502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3205 Valid, 4297 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-07-12 05:50:38,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17418 states. [2022-07-12 05:50:40,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17418 to 9811. [2022-07-12 05:50:40,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9811 states, 7271 states have (on average 1.6175216613945813) internal successors, (11761), 7645 states have internal predecessors, (11761), 1988 states have call successors, (1988), 452 states have call predecessors, (1988), 551 states have return successors, (2530), 2017 states have call predecessors, (2530), 1983 states have call successors, (2530) [2022-07-12 05:50:40,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9811 states to 9811 states and 16279 transitions. [2022-07-12 05:50:40,882 INFO L78 Accepts]: Start accepts. Automaton has 9811 states and 16279 transitions. Word has length 157 [2022-07-12 05:50:40,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:50:40,883 INFO L495 AbstractCegarLoop]: Abstraction has 9811 states and 16279 transitions. [2022-07-12 05:50:40,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (21), 7 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-12 05:50:40,883 INFO L276 IsEmpty]: Start isEmpty. Operand 9811 states and 16279 transitions. [2022-07-12 05:50:40,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-12 05:50:40,892 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:50:40,893 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:40,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-12 05:50:40,893 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:50:40,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:50:40,893 INFO L85 PathProgramCache]: Analyzing trace with hash -507091430, now seen corresponding path program 1 times [2022-07-12 05:50:40,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:50:40,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538625761] [2022-07-12 05:50:40,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:50:40,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:50:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:40,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:50:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:40,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:50:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:40,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:50:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:40,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:50:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:40,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:50:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:41,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:50:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:41,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:41,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:50:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:41,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 05:50:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:41,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:41,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:41,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:41,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:50:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:41,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:41,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:50:41,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:41,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 05:50:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:41,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:50:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:41,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:41,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:50:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:41,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 05:50:41,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:41,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 05:50:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:41,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:41,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:41,477 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-07-12 05:50:41,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:50:41,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538625761] [2022-07-12 05:50:41,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538625761] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:50:41,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:50:41,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 05:50:41,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017819246] [2022-07-12 05:50:41,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:50:41,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 05:50:41,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:50:41,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 05:50:41,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:50:41,479 INFO L87 Difference]: Start difference. First operand 9811 states and 16279 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-12 05:50:56,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:50:56,426 INFO L93 Difference]: Finished difference Result 26996 states and 49883 transitions. [2022-07-12 05:50:56,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 05:50:56,427 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 157 [2022-07-12 05:50:56,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:50:56,514 INFO L225 Difference]: With dead ends: 26996 [2022-07-12 05:50:56,514 INFO L226 Difference]: Without dead ends: 17381 [2022-07-12 05:50:56,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-07-12 05:50:56,551 INFO L413 NwaCegarLoop]: 979 mSDtfsCounter, 2495 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 5485 mSolverCounterSat, 1292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2508 SdHoareTripleChecker+Valid, 2574 SdHoareTripleChecker+Invalid, 6777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1292 IncrementalHoareTripleChecker+Valid, 5485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-07-12 05:50:56,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2508 Valid, 2574 Invalid, 6777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1292 Valid, 5485 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-07-12 05:50:56,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17381 states. [2022-07-12 05:50:58,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17381 to 9875. [2022-07-12 05:50:58,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9875 states, 7319 states have (on average 1.6134717857630825) internal successors, (11809), 7693 states have internal predecessors, (11809), 1988 states have call successors, (1988), 468 states have call predecessors, (1988), 567 states have return successors, (2546), 2017 states have call predecessors, (2546), 1983 states have call successors, (2546) [2022-07-12 05:50:59,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9875 states to 9875 states and 16343 transitions. [2022-07-12 05:50:59,030 INFO L78 Accepts]: Start accepts. Automaton has 9875 states and 16343 transitions. Word has length 157 [2022-07-12 05:50:59,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:50:59,030 INFO L495 AbstractCegarLoop]: Abstraction has 9875 states and 16343 transitions. [2022-07-12 05:50:59,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-12 05:50:59,031 INFO L276 IsEmpty]: Start isEmpty. Operand 9875 states and 16343 transitions. [2022-07-12 05:50:59,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-07-12 05:50:59,040 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:50:59,040 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:59,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-12 05:50:59,041 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:50:59,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:50:59,041 INFO L85 PathProgramCache]: Analyzing trace with hash 145303796, now seen corresponding path program 1 times [2022-07-12 05:50:59,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:50:59,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188563337] [2022-07-12 05:50:59,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:50:59,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:50:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:50:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:50:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:50:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:50:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:50:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:50:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:50:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 05:50:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:59,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:50:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:50:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 05:50:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:50:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:50:59,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 05:50:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 05:50:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:59,544 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-07-12 05:50:59,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:50:59,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188563337] [2022-07-12 05:50:59,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188563337] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:50:59,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:50:59,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 05:50:59,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483800072] [2022-07-12 05:50:59,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:50:59,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 05:50:59,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:50:59,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 05:50:59,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:50:59,546 INFO L87 Difference]: Start difference. First operand 9875 states and 16343 transitions. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-12 05:51:14,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:51:14,555 INFO L93 Difference]: Finished difference Result 27140 states and 49915 transitions. [2022-07-12 05:51:14,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 05:51:14,556 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 159 [2022-07-12 05:51:14,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:51:14,634 INFO L225 Difference]: With dead ends: 27140 [2022-07-12 05:51:14,634 INFO L226 Difference]: Without dead ends: 17461 [2022-07-12 05:51:14,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2022-07-12 05:51:14,669 INFO L413 NwaCegarLoop]: 977 mSDtfsCounter, 3040 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 5210 mSolverCounterSat, 1516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3055 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 6726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1516 IncrementalHoareTripleChecker+Valid, 5210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-07-12 05:51:14,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3055 Valid, 2554 Invalid, 6726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1516 Valid, 5210 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-07-12 05:51:14,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17461 states. [2022-07-12 05:51:17,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17461 to 9955. [2022-07-12 05:51:17,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9955 states, 7383 states have (on average 1.6081538669917377) internal successors, (11873), 7757 states have internal predecessors, (11873), 1988 states have call successors, (1988), 484 states have call predecessors, (1988), 583 states have return successors, (2562), 2017 states have call predecessors, (2562), 1983 states have call successors, (2562) [2022-07-12 05:51:17,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9955 states to 9955 states and 16423 transitions. [2022-07-12 05:51:17,232 INFO L78 Accepts]: Start accepts. Automaton has 9955 states and 16423 transitions. Word has length 159 [2022-07-12 05:51:17,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:51:17,233 INFO L495 AbstractCegarLoop]: Abstraction has 9955 states and 16423 transitions. [2022-07-12 05:51:17,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-12 05:51:17,233 INFO L276 IsEmpty]: Start isEmpty. Operand 9955 states and 16423 transitions. [2022-07-12 05:51:17,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-07-12 05:51:17,243 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:51:17,243 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:17,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-12 05:51:17,243 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:51:17,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:51:17,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1763942618, now seen corresponding path program 1 times [2022-07-12 05:51:17,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:51:17,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103421803] [2022-07-12 05:51:17,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:51:17,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:51:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:51:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:51:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:51:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 05:51:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:51:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:51:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:51:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 05:51:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:17,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:51:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 05:51:17,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 05:51:17,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:51:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:17,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 05:51:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 05:51:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 05:51:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:17,751 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-07-12 05:51:17,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:51:17,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103421803] [2022-07-12 05:51:17,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103421803] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:51:17,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:51:17,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 05:51:17,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155127631] [2022-07-12 05:51:17,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:51:17,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 05:51:17,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:51:17,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 05:51:17,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:51:17,754 INFO L87 Difference]: Start difference. First operand 9955 states and 16423 transitions. Second operand has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 6 states have internal predecessors, (105), 4 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21)