/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/product-lines/elevator_spec2_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 00:51:19,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 00:51:19,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 00:51:19,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 00:51:19,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 00:51:19,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 00:51:19,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 00:51:19,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 00:51:19,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 00:51:19,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 00:51:19,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 00:51:19,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 00:51:19,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 00:51:19,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 00:51:19,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 00:51:19,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 00:51:19,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 00:51:19,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 00:51:19,081 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 00:51:19,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 00:51:19,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 00:51:19,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 00:51:19,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 00:51:19,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 00:51:19,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 00:51:19,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 00:51:19,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 00:51:19,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 00:51:19,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 00:51:19,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 00:51:19,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 00:51:19,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 00:51:19,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 00:51:19,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 00:51:19,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 00:51:19,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 00:51:19,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 00:51:19,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 00:51:19,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 00:51:19,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 00:51:19,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 00:51:19,110 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-31 00:51:19,136 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 00:51:19,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 00:51:19,137 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 00:51:19,137 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 00:51:19,139 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 00:51:19,139 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 00:51:19,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 00:51:19,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 00:51:19,140 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 00:51:19,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 00:51:19,141 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 00:51:19,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 00:51:19,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 00:51:19,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 00:51:19,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 00:51:19,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 00:51:19,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 00:51:19,142 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 00:51:19,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 00:51:19,142 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 00:51:19,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 00:51:19,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 00:51:19,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 00:51:19,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 00:51:19,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:51:19,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 00:51:19,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 00:51:19,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 00:51:19,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 00:51:19,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 00:51:19,144 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 00:51:19,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 00:51:19,145 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 00:51:19,145 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 00:51:19,145 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 00:51:19,145 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 00:51:19,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 00:51:19,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 00:51:19,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 00:51:19,426 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 00:51:19,426 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 00:51:19,427 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product09.cil.c [2023-03-31 00:51:20,730 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 00:51:21,073 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 00:51:21,075 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product09.cil.c [2023-03-31 00:51:21,102 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/778e0afa9/ee3386a1fb3348f9878eccd7912a5a12/FLAG05aa73c6a [2023-03-31 00:51:21,117 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/778e0afa9/ee3386a1fb3348f9878eccd7912a5a12 [2023-03-31 00:51:21,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 00:51:21,121 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 00:51:21,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 00:51:21,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 00:51:21,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 00:51:21,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:51:21" (1/1) ... [2023-03-31 00:51:21,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5808ab69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:21, skipping insertion in model container [2023-03-31 00:51:21,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:51:21" (1/1) ... [2023-03-31 00:51:21,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 00:51:21,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 00:51:21,523 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product09.cil.c[28842,28855] [2023-03-31 00:51:21,648 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:51:21,659 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 00:51:21,721 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product09.cil.c[28842,28855] [2023-03-31 00:51:21,815 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:51:21,843 INFO L208 MainTranslator]: Completed translation [2023-03-31 00:51:21,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:21 WrapperNode [2023-03-31 00:51:21,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 00:51:21,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 00:51:21,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 00:51:21,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 00:51:21,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:21" (1/1) ... [2023-03-31 00:51:21,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:21" (1/1) ... [2023-03-31 00:51:21,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:21" (1/1) ... [2023-03-31 00:51:21,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:21" (1/1) ... [2023-03-31 00:51:21,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:21" (1/1) ... [2023-03-31 00:51:21,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:21" (1/1) ... [2023-03-31 00:51:21,983 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:21" (1/1) ... [2023-03-31 00:51:22,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:21" (1/1) ... [2023-03-31 00:51:22,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 00:51:22,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 00:51:22,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 00:51:22,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 00:51:22,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:21" (1/1) ... [2023-03-31 00:51:22,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:51:22,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:51:22,047 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) [2023-03-31 00:51:22,056 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 [2023-03-31 00:51:22,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 00:51:22,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 00:51:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 00:51:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 00:51:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2023-03-31 00:51:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-03-31 00:51:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2023-03-31 00:51:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-03-31 00:51:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2023-03-31 00:51:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2023-03-31 00:51:22,086 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-03-31 00:51:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2023-03-31 00:51:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 00:51:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2023-03-31 00:51:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2023-03-31 00:51:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2023-03-31 00:51:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 00:51:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2023-03-31 00:51:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 00:51:22,087 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 00:51:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 00:51:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-03-31 00:51:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-03-31 00:51:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-03-31 00:51:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2023-03-31 00:51:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2023-03-31 00:51:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2023-03-31 00:51:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2023-03-31 00:51:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-03-31 00:51:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-03-31 00:51:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-03-31 00:51:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2023-03-31 00:51:22,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-03-31 00:51:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-03-31 00:51:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-03-31 00:51:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-03-31 00:51:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 00:51:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 00:51:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 00:51:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 00:51:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 00:51:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-03-31 00:51:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2023-03-31 00:51:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-03-31 00:51:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-03-31 00:51:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2023-03-31 00:51:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-03-31 00:51:22,090 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-03-31 00:51:22,090 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2023-03-31 00:51:22,090 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-03-31 00:51:22,090 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-03-31 00:51:22,090 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-03-31 00:51:22,091 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-03-31 00:51:22,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-03-31 00:51:22,091 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2023-03-31 00:51:22,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2023-03-31 00:51:22,092 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-03-31 00:51:22,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2023-03-31 00:51:22,092 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-03-31 00:51:22,092 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2023-03-31 00:51:22,092 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-03-31 00:51:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2023-03-31 00:51:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 00:51:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2023-03-31 00:51:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-03-31 00:51:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 00:51:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 00:51:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 00:51:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 00:51:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 00:51:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 00:51:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 00:51:22,093 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2023-03-31 00:51:22,094 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2023-03-31 00:51:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 00:51:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 00:51:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 00:51:22,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 00:51:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 00:51:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 00:51:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2023-03-31 00:51:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-03-31 00:51:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-03-31 00:51:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-03-31 00:51:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2023-03-31 00:51:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-03-31 00:51:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2023-03-31 00:51:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2023-03-31 00:51:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-03-31 00:51:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 00:51:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2023-03-31 00:51:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2023-03-31 00:51:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-03-31 00:51:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 00:51:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-03-31 00:51:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2023-03-31 00:51:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2023-03-31 00:51:22,097 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2023-03-31 00:51:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2023-03-31 00:51:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 00:51:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2023-03-31 00:51:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 00:51:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2023-03-31 00:51:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2023-03-31 00:51:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 00:51:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 00:51:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 00:51:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 00:51:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 00:51:22,098 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 00:51:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-03-31 00:51:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-03-31 00:51:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 00:51:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-03-31 00:51:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-03-31 00:51:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2023-03-31 00:51:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2023-03-31 00:51:22,099 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-03-31 00:51:22,100 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-03-31 00:51:22,100 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2023-03-31 00:51:22,100 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-03-31 00:51:22,100 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-03-31 00:51:22,100 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-03-31 00:51:22,101 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-03-31 00:51:22,101 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 00:51:22,101 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 00:51:22,101 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-03-31 00:51:22,102 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2023-03-31 00:51:22,102 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-03-31 00:51:22,105 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2023-03-31 00:51:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-03-31 00:51:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2023-03-31 00:51:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-03-31 00:51:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-03-31 00:51:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2023-03-31 00:51:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-03-31 00:51:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2023-03-31 00:51:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-03-31 00:51:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-03-31 00:51:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2023-03-31 00:51:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-03-31 00:51:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2023-03-31 00:51:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-03-31 00:51:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 00:51:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 00:51:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 00:51:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 00:51:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 00:51:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 00:51:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 00:51:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 00:51:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 00:51:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 00:51:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 00:51:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 00:51:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 00:51:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 00:51:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 00:51:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2023-03-31 00:51:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2023-03-31 00:51:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 00:51:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 00:51:22,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 00:51:22,413 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 00:51:22,416 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 00:51:23,602 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 00:51:23,614 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 00:51:23,614 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-03-31 00:51:23,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:51:23 BoogieIcfgContainer [2023-03-31 00:51:23,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 00:51:23,619 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 00:51:23,619 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 00:51:23,622 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 00:51:23,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 12:51:21" (1/3) ... [2023-03-31 00:51:23,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3365adab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:51:23, skipping insertion in model container [2023-03-31 00:51:23,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:21" (2/3) ... [2023-03-31 00:51:23,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3365adab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:51:23, skipping insertion in model container [2023-03-31 00:51:23,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:51:23" (3/3) ... [2023-03-31 00:51:23,624 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product09.cil.c [2023-03-31 00:51:23,640 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 00:51:23,640 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 00:51:23,704 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 00:51:23,710 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6ccc761f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 00:51:23,710 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 00:51:23,719 INFO L276 IsEmpty]: Start isEmpty. Operand has 737 states, 515 states have (on average 1.6504854368932038) internal successors, (850), 542 states have internal predecessors, (850), 163 states have call successors, (163), 46 states have call predecessors, (163), 46 states have return successors, (163), 154 states have call predecessors, (163), 163 states have call successors, (163) [2023-03-31 00:51:23,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-03-31 00:51:23,748 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:51:23,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:51:23,750 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:51:23,754 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:51:23,754 INFO L85 PathProgramCache]: Analyzing trace with hash 877393480, now seen corresponding path program 1 times [2023-03-31 00:51:23,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:51:23,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959738155] [2023-03-31 00:51:23,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:51:23,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:51:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:24,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:51:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:24,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:51:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:24,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:51:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:24,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:51:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:24,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:51:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:24,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:51:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:24,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:51:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:24,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:51:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:24,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:25,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:51:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:25,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:51:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:25,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-03-31 00:51:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:25,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:25,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:25,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:25,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:51:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:25,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:51:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:25,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 00:51:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:25,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:25,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:51:25,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:51:25,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959738155] [2023-03-31 00:51:25,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959738155] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:51:25,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:51:25,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 00:51:25,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953413654] [2023-03-31 00:51:25,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:51:25,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 00:51:25,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:51:25,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 00:51:25,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-03-31 00:51:25,178 INFO L87 Difference]: Start difference. First operand has 737 states, 515 states have (on average 1.6504854368932038) internal successors, (850), 542 states have internal predecessors, (850), 163 states have call successors, (163), 46 states have call predecessors, (163), 46 states have return successors, (163), 154 states have call predecessors, (163), 163 states have call successors, (163) Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (23), 8 states have call predecessors, (23), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2023-03-31 00:51:35,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:51:35,089 INFO L93 Difference]: Finished difference Result 1694 states and 3061 transitions. [2023-03-31 00:51:35,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 00:51:35,091 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (23), 8 states have call predecessors, (23), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 107 [2023-03-31 00:51:35,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:51:35,119 INFO L225 Difference]: With dead ends: 1694 [2023-03-31 00:51:35,120 INFO L226 Difference]: Without dead ends: 1106 [2023-03-31 00:51:35,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2023-03-31 00:51:35,131 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 3014 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 4566 mSolverCounterSat, 1145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3106 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 5711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1145 IncrementalHoareTripleChecker+Valid, 4566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-03-31 00:51:35,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3106 Valid, 764 Invalid, 5711 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1145 Valid, 4566 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-03-31 00:51:35,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2023-03-31 00:51:35,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 577. [2023-03-31 00:51:35,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 430 states have (on average 1.6837209302325582) internal successors, (724), 449 states have internal predecessors, (724), 108 states have call successors, (108), 42 states have call predecessors, (108), 38 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2023-03-31 00:51:35,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 932 transitions. [2023-03-31 00:51:35,463 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 932 transitions. Word has length 107 [2023-03-31 00:51:35,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:51:35,463 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 932 transitions. [2023-03-31 00:51:35,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (23), 8 states have call predecessors, (23), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2023-03-31 00:51:35,464 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 932 transitions. [2023-03-31 00:51:35,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-03-31 00:51:35,470 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:51:35,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:51:35,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 00:51:35,471 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:51:35,471 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:51:35,472 INFO L85 PathProgramCache]: Analyzing trace with hash -574006618, now seen corresponding path program 1 times [2023-03-31 00:51:35,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:51:35,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054871837] [2023-03-31 00:51:35,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:51:35,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:51:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:35,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:51:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:35,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:51:35,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:35,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:51:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:35,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:51:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:35,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:51:35,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:35,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:51:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:51:36,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:51:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:51:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:51:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:51:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:51:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:51:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 00:51:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:51:36,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:51:36,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054871837] [2023-03-31 00:51:36,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054871837] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:51:36,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:51:36,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-03-31 00:51:36,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965840087] [2023-03-31 00:51:36,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:51:36,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-03-31 00:51:36,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:51:36,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-03-31 00:51:36,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:51:36,536 INFO L87 Difference]: Start difference. First operand 577 states and 932 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-03-31 00:51:48,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:51:48,318 INFO L93 Difference]: Finished difference Result 1657 states and 3018 transitions. [2023-03-31 00:51:48,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-03-31 00:51:48,319 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 110 [2023-03-31 00:51:48,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:51:48,328 INFO L225 Difference]: With dead ends: 1657 [2023-03-31 00:51:48,328 INFO L226 Difference]: Without dead ends: 1117 [2023-03-31 00:51:48,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2023-03-31 00:51:48,332 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 1332 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 8543 mSolverCounterSat, 541 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1420 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 9084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 541 IncrementalHoareTripleChecker+Valid, 8543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-03-31 00:51:48,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1420 Valid, 1162 Invalid, 9084 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [541 Valid, 8543 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2023-03-31 00:51:48,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2023-03-31 00:51:48,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 581. [2023-03-31 00:51:48,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 433 states have (on average 1.6766743648960738) internal successors, (726), 452 states have internal predecessors, (726), 108 states have call successors, (108), 42 states have call predecessors, (108), 39 states have return successors, (102), 98 states have call predecessors, (102), 100 states have call successors, (102) [2023-03-31 00:51:48,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 936 transitions. [2023-03-31 00:51:48,573 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 936 transitions. Word has length 110 [2023-03-31 00:51:48,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:51:48,573 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 936 transitions. [2023-03-31 00:51:48,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-03-31 00:51:48,574 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 936 transitions. [2023-03-31 00:51:48,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-03-31 00:51:48,577 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:51:48,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:51:48,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 00:51:48,577 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:51:48,578 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:51:48,578 INFO L85 PathProgramCache]: Analyzing trace with hash -486737685, now seen corresponding path program 1 times [2023-03-31 00:51:48,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:51:48,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639931209] [2023-03-31 00:51:48,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:51:48,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:51:48,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:48,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:51:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:48,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:51:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:48,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:51:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:48,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:51:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:48,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:51:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:48,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:51:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:49,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:51:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:49,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:51:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:49,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:49,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:51:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:49,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:51:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:49,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:51:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:49,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:49,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:49,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:49,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:51:49,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:49,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-03-31 00:51:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:49,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-03-31 00:51:49,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:49,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:49,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:51:49,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:51:49,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639931209] [2023-03-31 00:51:49,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639931209] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:51:49,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:51:49,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-03-31 00:51:49,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956698006] [2023-03-31 00:51:49,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:51:49,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-31 00:51:49,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:51:49,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-31 00:51:49,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-03-31 00:51:49,485 INFO L87 Difference]: Start difference. First operand 581 states and 936 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (23), 8 states have call predecessors, (23), 5 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-03-31 00:52:09,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:09,034 INFO L93 Difference]: Finished difference Result 3385 states and 6559 transitions. [2023-03-31 00:52:09,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-03-31 00:52:09,036 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (23), 8 states have call predecessors, (23), 5 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 115 [2023-03-31 00:52:09,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:09,067 INFO L225 Difference]: With dead ends: 3385 [2023-03-31 00:52:09,068 INFO L226 Difference]: Without dead ends: 2841 [2023-03-31 00:52:09,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1096 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=797, Invalid=2283, Unknown=0, NotChecked=0, Total=3080 [2023-03-31 00:52:09,081 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 6354 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 9513 mSolverCounterSat, 3274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6443 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 12787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3274 IncrementalHoareTripleChecker+Valid, 9513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:09,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6443 Valid, 1117 Invalid, 12787 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3274 Valid, 9513 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2023-03-31 00:52:09,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states. [2023-03-31 00:52:09,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 1448. [2023-03-31 00:52:09,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1079 states have (on average 1.6376274328081557) internal successors, (1767), 1126 states have internal predecessors, (1767), 271 states have call successors, (271), 97 states have call predecessors, (271), 97 states have return successors, (304), 260 states have call predecessors, (304), 263 states have call successors, (304) [2023-03-31 00:52:09,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2342 transitions. [2023-03-31 00:52:09,654 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2342 transitions. Word has length 115 [2023-03-31 00:52:09,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:09,654 INFO L495 AbstractCegarLoop]: Abstraction has 1448 states and 2342 transitions. [2023-03-31 00:52:09,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (23), 8 states have call predecessors, (23), 5 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-03-31 00:52:09,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2342 transitions. [2023-03-31 00:52:09,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-03-31 00:52:09,660 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:09,660 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:52:09,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 00:52:09,661 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:09,661 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:09,661 INFO L85 PathProgramCache]: Analyzing trace with hash -470110970, now seen corresponding path program 1 times [2023-03-31 00:52:09,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:09,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594717212] [2023-03-31 00:52:09,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:09,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:10,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 00:52:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 00:52:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:52:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 00:52:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-03-31 00:52:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-03-31 00:52:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:52:10,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:10,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594717212] [2023-03-31 00:52:10,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594717212] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:10,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:10,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-03-31 00:52:10,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857225054] [2023-03-31 00:52:10,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:10,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-03-31 00:52:10,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:10,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-03-31 00:52:10,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-03-31 00:52:10,764 INFO L87 Difference]: Start difference. First operand 1448 states and 2342 transitions. Second operand has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 10 states have internal predecessors, (80), 5 states have call successors, (24), 8 states have call predecessors, (24), 6 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20)