/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_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 00:51:55,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 00:51:55,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 00:51:55,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 00:51:55,754 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 00:51:55,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 00:51:55,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 00:51:55,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 00:51:55,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 00:51:55,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 00:51:55,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 00:51:55,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 00:51:55,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 00:51:55,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 00:51:55,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 00:51:55,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 00:51:55,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 00:51:55,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 00:51:55,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 00:51:55,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 00:51:55,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 00:51:55,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 00:51:55,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 00:51:55,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 00:51:55,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 00:51:55,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 00:51:55,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 00:51:55,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 00:51:55,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 00:51:55,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 00:51:55,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 00:51:55,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 00:51:55,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 00:51:55,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 00:51:55,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 00:51:55,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 00:51:55,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 00:51:55,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 00:51:55,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 00:51:55,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 00:51:55,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 00:51:55,795 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 00:51:55,818 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 00:51:55,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 00:51:55,819 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 00:51:55,819 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 00:51:55,820 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 00:51:55,820 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 00:51:55,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 00:51:55,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 00:51:55,820 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 00:51:55,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 00:51:55,821 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 00:51:55,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 00:51:55,821 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 00:51:55,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 00:51:55,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 00:51:55,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 00:51:55,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 00:51:55,822 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 00:51:55,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 00:51:55,822 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 00:51:55,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 00:51:55,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 00:51:55,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 00:51:55,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 00:51:55,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:51:55,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 00:51:55,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 00:51:55,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 00:51:55,823 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 00:51:55,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 00:51:55,823 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 00:51:55,823 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 00:51:55,823 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 00:51:55,823 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 00:51:55,823 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 00:51:55,823 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 00:51:56,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 00:51:56,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 00:51:56,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 00:51:56,025 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 00:51:56,025 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 00:51:56,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product23.cil.c [2023-03-31 00:51:57,229 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 00:51:57,547 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 00:51:57,547 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product23.cil.c [2023-03-31 00:51:57,563 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ff374213/48f927e2ad4c49008fcd3bba768daaf9/FLAG1b30b656f [2023-03-31 00:51:57,572 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ff374213/48f927e2ad4c49008fcd3bba768daaf9 [2023-03-31 00:51:57,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 00:51:57,574 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 00:51:57,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 00:51:57,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 00:51:57,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 00:51:57,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:51:57" (1/1) ... [2023-03-31 00:51:57,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13888c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:57, skipping insertion in model container [2023-03-31 00:51:57,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:51:57" (1/1) ... [2023-03-31 00:51:57,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 00:51:57,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 00:51:57,896 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_product23.cil.c[35995,36008] [2023-03-31 00:51:57,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:51:57,968 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 00:51:58,001 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_product23.cil.c[35995,36008] [2023-03-31 00:51:58,029 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:51:58,048 INFO L208 MainTranslator]: Completed translation [2023-03-31 00:51:58,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:58 WrapperNode [2023-03-31 00:51:58,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 00:51:58,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 00:51:58,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 00:51:58,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 00:51:58,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:58" (1/1) ... [2023-03-31 00:51:58,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:58" (1/1) ... [2023-03-31 00:51:58,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:58" (1/1) ... [2023-03-31 00:51:58,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:58" (1/1) ... [2023-03-31 00:51:58,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:58" (1/1) ... [2023-03-31 00:51:58,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:58" (1/1) ... [2023-03-31 00:51:58,142 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:58" (1/1) ... [2023-03-31 00:51:58,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:58" (1/1) ... [2023-03-31 00:51:58,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 00:51:58,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 00:51:58,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 00:51:58,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 00:51:58,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:58" (1/1) ... [2023-03-31 00:51:58,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:51:58,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:51:58,205 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 00:51:58,249 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 00:51:58,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 00:51:58,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 00:51:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 00:51:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 00:51:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2023-03-31 00:51:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2023-03-31 00:51:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2023-03-31 00:51:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2023-03-31 00:51:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 00:51:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 00:51:58,274 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 00:51:58,275 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 00:51:58,275 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-03-31 00:51:58,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-03-31 00:51:58,275 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-03-31 00:51:58,275 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2023-03-31 00:51:58,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-03-31 00:51:58,275 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-03-31 00:51:58,275 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-03-31 00:51:58,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-03-31 00:51:58,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 00:51:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 00:51:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 00:51:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 00:51:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 00:51:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 00:51:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2023-03-31 00:51:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-03-31 00:51:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2023-03-31 00:51:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-03-31 00:51:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2023-03-31 00:51:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2023-03-31 00:51:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-03-31 00:51:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2023-03-31 00:51:58,276 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 00:51:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2023-03-31 00:51:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2023-03-31 00:51:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2023-03-31 00:51:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 00:51:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2023-03-31 00:51:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 00:51:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 00:51:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 00:51:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 00:51:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2023-03-31 00:51:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2023-03-31 00:51:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 00:51:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-03-31 00:51:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-03-31 00:51:58,277 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-03-31 00:51:58,278 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-03-31 00:51:58,278 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2023-03-31 00:51:58,278 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-03-31 00:51:58,278 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2023-03-31 00:51:58,279 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-03-31 00:51:58,279 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2023-03-31 00:51:58,279 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-03-31 00:51:58,279 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-03-31 00:51:58,279 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2023-03-31 00:51:58,279 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-03-31 00:51:58,279 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-03-31 00:51:58,280 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-03-31 00:51:58,280 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-03-31 00:51:58,280 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-03-31 00:51:58,280 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2023-03-31 00:51:58,280 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2023-03-31 00:51:58,280 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2023-03-31 00:51:58,280 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull [2023-03-31 00:51:58,280 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-03-31 00:51:58,280 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2023-03-31 00:51:58,281 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-03-31 00:51:58,281 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2023-03-31 00:51:58,281 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-03-31 00:51:58,281 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2023-03-31 00:51:58,281 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-03-31 00:51:58,281 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2023-03-31 00:51:58,281 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 00:51:58,281 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2023-03-31 00:51:58,282 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-03-31 00:51:58,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-03-31 00:51:58,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2023-03-31 00:51:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 00:51:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 00:51:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 00:51:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 00:51:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 00:51:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 00:51:58,282 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-03-31 00:51:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-03-31 00:51:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2023-03-31 00:51:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2023-03-31 00:51:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2023-03-31 00:51:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2023-03-31 00:51:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 00:51:58,283 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 00:51:58,284 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 00:51:58,284 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 00:51:58,284 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-03-31 00:51:58,284 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-03-31 00:51:58,284 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2023-03-31 00:51:58,284 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-03-31 00:51:58,284 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-03-31 00:51:58,284 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-03-31 00:51:58,284 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-03-31 00:51:58,284 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-03-31 00:51:58,284 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 00:51:58,284 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 00:51:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 00:51:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 00:51:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 00:51:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 00:51:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 00:51:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 00:51:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 00:51:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 00:51:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 00:51:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 00:51:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 00:51:58,285 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 00:51:58,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 00:51:58,286 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 00:51:58,286 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2023-03-31 00:51:58,286 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-03-31 00:51:58,286 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-03-31 00:51:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2023-03-31 00:51:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-03-31 00:51:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2023-03-31 00:51:58,287 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2023-03-31 00:51:58,288 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-03-31 00:51:58,290 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 00:51:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2023-03-31 00:51:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2023-03-31 00:51:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-03-31 00:51:58,295 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 00:51:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-03-31 00:51:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2023-03-31 00:51:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2023-03-31 00:51:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2023-03-31 00:51:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2023-03-31 00:51:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 00:51:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2023-03-31 00:51:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 00:51:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 00:51:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 00:51:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 00:51:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2023-03-31 00:51:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2023-03-31 00:51:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2023-03-31 00:51:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-03-31 00:51:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-03-31 00:51:58,296 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 00:51:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-03-31 00:51:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-03-31 00:51:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2023-03-31 00:51:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-03-31 00:51:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-03-31 00:51:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2023-03-31 00:51:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2023-03-31 00:51:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2023-03-31 00:51:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-03-31 00:51:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-03-31 00:51:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2023-03-31 00:51:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-03-31 00:51:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2023-03-31 00:51:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2023-03-31 00:51:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull [2023-03-31 00:51:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-03-31 00:51:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-03-31 00:51:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2023-03-31 00:51:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-03-31 00:51:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2023-03-31 00:51:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-03-31 00:51:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2023-03-31 00:51:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-03-31 00:51:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 00:51:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 00:51:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 00:51:58,588 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 00:51:58,590 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 00:51:59,657 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 00:51:59,666 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 00:51:59,666 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-03-31 00:51:59,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:51:59 BoogieIcfgContainer [2023-03-31 00:51:59,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 00:51:59,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 00:51:59,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 00:51:59,671 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 00:51:59,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 12:51:57" (1/3) ... [2023-03-31 00:51:59,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4baafc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:51:59, skipping insertion in model container [2023-03-31 00:51:59,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:58" (2/3) ... [2023-03-31 00:51:59,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4baafc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:51:59, skipping insertion in model container [2023-03-31 00:51:59,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:51:59" (3/3) ... [2023-03-31 00:51:59,672 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product23.cil.c [2023-03-31 00:51:59,683 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 00:51:59,683 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 00:51:59,721 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 00:51:59,725 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;@46b12a1b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 00:51:59,725 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 00:51:59,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 801 states, 555 states have (on average 1.6216216216216217) internal successors, (900), 582 states have internal predecessors, (900), 180 states have call successors, (180), 53 states have call predecessors, (180), 53 states have return successors, (180), 171 states have call predecessors, (180), 180 states have call successors, (180) [2023-03-31 00:51:59,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-03-31 00:51:59,748 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:51:59,749 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:51:59,749 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:51:59,752 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:51:59,752 INFO L85 PathProgramCache]: Analyzing trace with hash 523102141, now seen corresponding path program 1 times [2023-03-31 00:51:59,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:51:59,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962649544] [2023-03-31 00:51:59,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:51:59,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:51:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:00,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:00,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:52:00,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-03-31 00:52:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:52:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:01,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:01,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:01,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:01,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:52:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:01,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-03-31 00:52:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:01,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-03-31 00:52:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:01,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:01,060 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-03-31 00:52:01,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:01,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962649544] [2023-03-31 00:52:01,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962649544] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:01,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:01,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 00:52:01,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061400922] [2023-03-31 00:52:01,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:01,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 00:52:01,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:01,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 00:52:01,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-03-31 00:52:01,100 INFO L87 Difference]: Start difference. First operand has 801 states, 555 states have (on average 1.6216216216216217) internal successors, (900), 582 states have internal predecessors, (900), 180 states have call successors, (180), 53 states have call predecessors, (180), 53 states have return successors, (180), 171 states have call predecessors, (180), 180 states have call successors, (180) Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (27), 8 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-03-31 00:52:10,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:10,305 INFO L93 Difference]: Finished difference Result 1821 states and 3182 transitions. [2023-03-31 00:52:10,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 00:52:10,307 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (27), 8 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 133 [2023-03-31 00:52:10,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:10,340 INFO L225 Difference]: With dead ends: 1821 [2023-03-31 00:52:10,340 INFO L226 Difference]: Without dead ends: 1169 [2023-03-31 00:52:10,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2023-03-31 00:52:10,348 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 1394 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 5155 mSolverCounterSat, 565 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 5720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 565 IncrementalHoareTripleChecker+Valid, 5155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:10,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 716 Invalid, 5720 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [565 Valid, 5155 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2023-03-31 00:52:10,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2023-03-31 00:52:10,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 641. [2023-03-31 00:52:10,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 470 states have (on average 1.646808510638298) internal successors, (774), 489 states have internal predecessors, (774), 125 states have call successors, (125), 49 states have call predecessors, (125), 45 states have return successors, (117), 114 states have call predecessors, (117), 117 states have call successors, (117) [2023-03-31 00:52:10,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 1016 transitions. [2023-03-31 00:52:10,613 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 1016 transitions. Word has length 133 [2023-03-31 00:52:10,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:10,614 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 1016 transitions. [2023-03-31 00:52:10,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (27), 8 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-03-31 00:52:10,615 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 1016 transitions. [2023-03-31 00:52:10,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-03-31 00:52:10,637 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:10,637 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:10,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 00:52:10,638 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:10,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:10,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1400665676, now seen corresponding path program 1 times [2023-03-31 00:52:10,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:10,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3343754] [2023-03-31 00:52:10,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:10,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:10,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:52:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:11,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:52:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:52:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-03-31 00:52:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-03-31 00:52:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:11,456 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-03-31 00:52:11,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:11,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3343754] [2023-03-31 00:52:11,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3343754] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:11,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:11,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 00:52:11,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062165685] [2023-03-31 00:52:11,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:11,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 00:52:11,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:11,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 00:52:11,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-03-31 00:52:11,461 INFO L87 Difference]: Start difference. First operand 641 states and 1016 transitions. Second operand has 10 states, 10 states have (on average 7.4) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (27), 8 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-03-31 00:52:20,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:20,105 INFO L93 Difference]: Finished difference Result 1773 states and 3081 transitions. [2023-03-31 00:52:20,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 00:52:20,106 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (27), 8 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 136 [2023-03-31 00:52:20,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:20,112 INFO L225 Difference]: With dead ends: 1773 [2023-03-31 00:52:20,113 INFO L226 Difference]: Without dead ends: 1169 [2023-03-31 00:52:20,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2023-03-31 00:52:20,115 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 2012 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 4738 mSolverCounterSat, 845 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2116 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 5583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 845 IncrementalHoareTripleChecker+Valid, 4738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:20,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2116 Valid, 760 Invalid, 5583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [845 Valid, 4738 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-03-31 00:52:20,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2023-03-31 00:52:20,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 641. [2023-03-31 00:52:20,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 470 states have (on average 1.6446808510638298) internal successors, (773), 489 states have internal predecessors, (773), 125 states have call successors, (125), 49 states have call predecessors, (125), 45 states have return successors, (117), 114 states have call predecessors, (117), 117 states have call successors, (117) [2023-03-31 00:52:20,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 1015 transitions. [2023-03-31 00:52:20,259 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 1015 transitions. Word has length 136 [2023-03-31 00:52:20,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:20,259 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 1015 transitions. [2023-03-31 00:52:20,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.4) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (27), 8 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-03-31 00:52:20,260 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 1015 transitions. [2023-03-31 00:52:20,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-03-31 00:52:20,262 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:20,263 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:20,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 00:52:20,263 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:20,263 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:20,263 INFO L85 PathProgramCache]: Analyzing trace with hash 893356716, now seen corresponding path program 1 times [2023-03-31 00:52:20,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:20,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234953952] [2023-03-31 00:52:20,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:20,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:20,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:20,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:52:20,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:52:20,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:52:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-03-31 00:52:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-03-31 00:52:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:20,955 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-03-31 00:52:20,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:20,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234953952] [2023-03-31 00:52:20,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234953952] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:20,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:20,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 00:52:20,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732475795] [2023-03-31 00:52:20,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:20,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 00:52:20,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:20,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 00:52:20,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-03-31 00:52:20,959 INFO L87 Difference]: Start difference. First operand 641 states and 1015 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (27), 8 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-03-31 00:52:28,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:28,236 INFO L93 Difference]: Finished difference Result 1773 states and 3080 transitions. [2023-03-31 00:52:28,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 00:52:28,236 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (27), 8 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 137 [2023-03-31 00:52:28,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:28,242 INFO L225 Difference]: With dead ends: 1773 [2023-03-31 00:52:28,242 INFO L226 Difference]: Without dead ends: 1169 [2023-03-31 00:52:28,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2023-03-31 00:52:28,245 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 3921 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 4399 mSolverCounterSat, 1583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4027 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 5982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1583 IncrementalHoareTripleChecker+Valid, 4399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:28,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4027 Valid, 639 Invalid, 5982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1583 Valid, 4399 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-03-31 00:52:28,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2023-03-31 00:52:28,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 641. [2023-03-31 00:52:28,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 470 states have (on average 1.6425531914893616) internal successors, (772), 489 states have internal predecessors, (772), 125 states have call successors, (125), 49 states have call predecessors, (125), 45 states have return successors, (117), 114 states have call predecessors, (117), 117 states have call successors, (117) [2023-03-31 00:52:28,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 1014 transitions. [2023-03-31 00:52:28,387 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 1014 transitions. Word has length 137 [2023-03-31 00:52:28,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:28,387 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 1014 transitions. [2023-03-31 00:52:28,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (27), 8 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-03-31 00:52:28,388 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 1014 transitions. [2023-03-31 00:52:28,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-03-31 00:52:28,390 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:28,390 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:28,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 00:52:28,390 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:28,391 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:28,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1772194864, now seen corresponding path program 1 times [2023-03-31 00:52:28,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:28,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398558861] [2023-03-31 00:52:28,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:28,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:28,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:29,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:29,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:29,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 00:52:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:29,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:29,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 00:52:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:29,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:29,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:29,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:29,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:29,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:52:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:29,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:29,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:29,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:29,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:52:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:29,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-03-31 00:52:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:29,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-03-31 00:52:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:29,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:29,226 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-03-31 00:52:29,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:29,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398558861] [2023-03-31 00:52:29,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398558861] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:29,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:29,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 00:52:29,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171763284] [2023-03-31 00:52:29,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:29,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 00:52:29,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:29,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 00:52:29,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-03-31 00:52:29,229 INFO L87 Difference]: Start difference. First operand 641 states and 1014 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (27), 8 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-03-31 00:52:36,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:36,901 INFO L93 Difference]: Finished difference Result 1773 states and 3079 transitions. [2023-03-31 00:52:36,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 00:52:36,901 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (27), 8 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 138 [2023-03-31 00:52:36,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:36,908 INFO L225 Difference]: With dead ends: 1773 [2023-03-31 00:52:36,908 INFO L226 Difference]: Without dead ends: 1169 [2023-03-31 00:52:36,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2023-03-31 00:52:36,917 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 2568 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 4647 mSolverCounterSat, 1048 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2674 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 5695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1048 IncrementalHoareTripleChecker+Valid, 4647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:36,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2674 Valid, 706 Invalid, 5695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1048 Valid, 4647 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-03-31 00:52:36,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2023-03-31 00:52:37,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 641. [2023-03-31 00:52:37,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 470 states have (on average 1.6404255319148937) internal successors, (771), 489 states have internal predecessors, (771), 125 states have call successors, (125), 49 states have call predecessors, (125), 45 states have return successors, (117), 114 states have call predecessors, (117), 117 states have call successors, (117) [2023-03-31 00:52:37,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 1013 transitions. [2023-03-31 00:52:37,203 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 1013 transitions. Word has length 138 [2023-03-31 00:52:37,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:37,204 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 1013 transitions. [2023-03-31 00:52:37,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.6) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (27), 8 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-03-31 00:52:37,204 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 1013 transitions. [2023-03-31 00:52:37,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-03-31 00:52:37,207 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:37,207 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:37,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 00:52:37,208 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:37,208 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:37,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1729994408, now seen corresponding path program 1 times [2023-03-31 00:52:37,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:37,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380883797] [2023-03-31 00:52:37,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:37,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:37,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:37,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:37,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:37,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:37,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:37,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:37,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:37,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:37,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:37,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:37,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-03-31 00:52:37,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:37,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:37,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:37,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-03-31 00:52:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:37,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:38,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:38,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:38,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:38,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:52:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:38,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:38,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:38,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:38,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:52:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:38,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-03-31 00:52:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:38,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-03-31 00:52:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:38,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:38,041 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-03-31 00:52:38,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:38,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380883797] [2023-03-31 00:52:38,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380883797] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:38,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:38,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 00:52:38,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402207538] [2023-03-31 00:52:38,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:38,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 00:52:38,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:38,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 00:52:38,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-03-31 00:52:38,042 INFO L87 Difference]: Start difference. First operand 641 states and 1013 transitions. Second operand has 10 states, 10 states have (on average 7.7) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (27), 8 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-03-31 00:52:45,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:45,293 INFO L93 Difference]: Finished difference Result 1773 states and 3078 transitions. [2023-03-31 00:52:45,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 00:52:45,293 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (27), 8 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 139 [2023-03-31 00:52:45,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:45,314 INFO L225 Difference]: With dead ends: 1773 [2023-03-31 00:52:45,314 INFO L226 Difference]: Without dead ends: 1169 [2023-03-31 00:52:45,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2023-03-31 00:52:45,316 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 3291 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 4491 mSolverCounterSat, 1338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3398 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 5829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1338 IncrementalHoareTripleChecker+Valid, 4491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:45,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3398 Valid, 618 Invalid, 5829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1338 Valid, 4491 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-03-31 00:52:45,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2023-03-31 00:52:45,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 641. [2023-03-31 00:52:45,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 470 states have (on average 1.6382978723404256) internal successors, (770), 489 states have internal predecessors, (770), 125 states have call successors, (125), 49 states have call predecessors, (125), 45 states have return successors, (117), 114 states have call predecessors, (117), 117 states have call successors, (117) [2023-03-31 00:52:45,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 1012 transitions. [2023-03-31 00:52:45,551 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 1012 transitions. Word has length 139 [2023-03-31 00:52:45,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:45,552 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 1012 transitions. [2023-03-31 00:52:45,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (27), 8 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-03-31 00:52:45,552 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 1012 transitions. [2023-03-31 00:52:45,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-03-31 00:52:45,554 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:45,554 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:45,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 00:52:45,569 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:45,569 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:45,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1094598996, now seen corresponding path program 1 times [2023-03-31 00:52:45,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:45,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106429067] [2023-03-31 00:52:45,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:45,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:45,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:45,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:45,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:45,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:45,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:45,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:45,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:46,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:46,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:46,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:46,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:46,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:46,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:46,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:46,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:46,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:46,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:46,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:46,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:46,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:46,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:52:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:46,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:46,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:46,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:46,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:52:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:46,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-03-31 00:52:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:46,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-03-31 00:52:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:46,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:46,422 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-03-31 00:52:46,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:46,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106429067] [2023-03-31 00:52:46,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106429067] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:46,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:46,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-03-31 00:52:46,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22385483] [2023-03-31 00:52:46,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:46,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-03-31 00:52:46,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:46,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-03-31 00:52:46,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:52:46,424 INFO L87 Difference]: Start difference. First operand 641 states and 1012 transitions. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (27), 8 states have call predecessors, (27), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2023-03-31 00:52:55,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:55,257 INFO L93 Difference]: Finished difference Result 1727 states and 2993 transitions. [2023-03-31 00:52:55,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-03-31 00:52:55,257 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (27), 8 states have call predecessors, (27), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 140 [2023-03-31 00:52:55,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:55,280 INFO L225 Difference]: With dead ends: 1727 [2023-03-31 00:52:55,280 INFO L226 Difference]: Without dead ends: 1169 [2023-03-31 00:52:55,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=196, Invalid=560, Unknown=0, NotChecked=0, Total=756 [2023-03-31 00:52:55,284 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 3230 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 8058 mSolverCounterSat, 1255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3335 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 9313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1255 IncrementalHoareTripleChecker+Valid, 8058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:55,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3335 Valid, 1115 Invalid, 9313 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1255 Valid, 8058 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2023-03-31 00:52:55,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2023-03-31 00:52:55,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 641. [2023-03-31 00:52:55,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 470 states have (on average 1.627659574468085) internal successors, (765), 489 states have internal predecessors, (765), 125 states have call successors, (125), 49 states have call predecessors, (125), 45 states have return successors, (117), 114 states have call predecessors, (117), 117 states have call successors, (117) [2023-03-31 00:52:55,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 1007 transitions. [2023-03-31 00:52:55,484 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 1007 transitions. Word has length 140 [2023-03-31 00:52:55,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:55,484 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 1007 transitions. [2023-03-31 00:52:55,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (27), 8 states have call predecessors, (27), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2023-03-31 00:52:55,484 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 1007 transitions. [2023-03-31 00:52:55,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-03-31 00:52:55,487 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:55,487 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:55,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 00:52:55,487 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:55,487 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:55,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1695915811, now seen corresponding path program 1 times [2023-03-31 00:52:55,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:55,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257202921] [2023-03-31 00:52:55,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:55,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:55,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:55,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:55,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:55,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:55,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:55,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:55,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:55,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:56,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:56,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:56,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:56,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-03-31 00:52:56,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:56,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-03-31 00:52:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:56,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:56,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:56,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:56,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:56,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:52:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:56,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:56,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:56,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:56,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:56,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:52:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:56,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-03-31 00:52:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:56,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-03-31 00:52:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:56,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:56,213 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-03-31 00:52:56,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:56,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257202921] [2023-03-31 00:52:56,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257202921] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:56,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:56,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-03-31 00:52:56,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453283295] [2023-03-31 00:52:56,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:56,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-03-31 00:52:56,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:56,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-03-31 00:52:56,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:52:56,215 INFO L87 Difference]: Start difference. First operand 641 states and 1007 transitions. Second operand has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 6 states have internal predecessors, (79), 4 states have call successors, (27), 8 states have call predecessors, (27), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23)