/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_spec1_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 00:49:28,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 00:49:28,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 00:49:28,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 00:49:28,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 00:49:28,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 00:49:28,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 00:49:28,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 00:49:28,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 00:49:28,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 00:49:28,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 00:49:28,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 00:49:28,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 00:49:28,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 00:49:28,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 00:49:28,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 00:49:28,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 00:49:28,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 00:49:28,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 00:49:28,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 00:49:28,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 00:49:28,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 00:49:28,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 00:49:28,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 00:49:28,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 00:49:28,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 00:49:28,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 00:49:28,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 00:49:28,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 00:49:28,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 00:49:28,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 00:49:28,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 00:49:28,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 00:49:28,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 00:49:28,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 00:49:28,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 00:49:28,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 00:49:28,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 00:49:28,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 00:49:28,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 00:49:28,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 00:49:28,704 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 00:49:28,718 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 00:49:28,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 00:49:28,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 00:49:28,718 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 00:49:28,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 00:49:28,719 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 00:49:28,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 00:49:28,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 00:49:28,719 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 00:49:28,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 00:49:28,720 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 00:49:28,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 00:49:28,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 00:49:28,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 00:49:28,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 00:49:28,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 00:49:28,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 00:49:28,720 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 00:49:28,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 00:49:28,721 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 00:49:28,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 00:49:28,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 00:49:28,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 00:49:28,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 00:49:28,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:49:28,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 00:49:28,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 00:49:28,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 00:49:28,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 00:49:28,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 00:49:28,721 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 00:49:28,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 00:49:28,722 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 00:49:28,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 00:49:28,722 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 00:49:28,722 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 00:49:28,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 00:49:28,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 00:49:28,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 00:49:28,912 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 00:49:28,912 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 00:49:28,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec1_product01.cil.c [2023-03-31 00:49:30,004 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 00:49:30,271 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 00:49:30,271 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec1_product01.cil.c [2023-03-31 00:49:30,285 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f65bc150b/6f0a05c4627c4dbbaf3af671c3776bc9/FLAG9c695fabf [2023-03-31 00:49:30,295 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f65bc150b/6f0a05c4627c4dbbaf3af671c3776bc9 [2023-03-31 00:49:30,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 00:49:30,297 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 00:49:30,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 00:49:30,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 00:49:30,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 00:49:30,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:49:30" (1/1) ... [2023-03-31 00:49:30,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60613182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:49:30, skipping insertion in model container [2023-03-31 00:49:30,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:49:30" (1/1) ... [2023-03-31 00:49:30,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 00:49:30,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 00:49:30,448 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_spec1_product01.cil.c[1545,1558] [2023-03-31 00:49:30,726 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:49:30,736 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 00:49:30,745 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_spec1_product01.cil.c[1545,1558] [2023-03-31 00:49:30,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:49:30,887 INFO L208 MainTranslator]: Completed translation [2023-03-31 00:49:30,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:49:30 WrapperNode [2023-03-31 00:49:30,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 00:49:30,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 00:49:30,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 00:49:30,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 00:49:30,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:49:30" (1/1) ... [2023-03-31 00:49:30,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:49:30" (1/1) ... [2023-03-31 00:49:30,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:49:30" (1/1) ... [2023-03-31 00:49:30,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:49:30" (1/1) ... [2023-03-31 00:49:30,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:49:30" (1/1) ... [2023-03-31 00:49:30,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:49:30" (1/1) ... [2023-03-31 00:49:30,999 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:49:30" (1/1) ... [2023-03-31 00:49:31,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:49:30" (1/1) ... [2023-03-31 00:49:31,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 00:49:31,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 00:49:31,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 00:49:31,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 00:49:31,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:49:30" (1/1) ... [2023-03-31 00:49:31,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:49:31,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:49:31,055 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 00:49:31,057 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 00:49:31,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 00:49:31,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 00:49:31,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 00:49:31,087 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 00:49:31,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 00:49:31,087 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-03-31 00:49:31,088 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2023-03-31 00:49:31,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-03-31 00:49:31,088 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-03-31 00:49:31,088 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-03-31 00:49:31,088 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-03-31 00:49:31,088 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2023-03-31 00:49:31,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-03-31 00:49:31,088 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-03-31 00:49:31,088 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-03-31 00:49:31,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-03-31 00:49:31,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-03-31 00:49:31,089 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2023-03-31 00:49:31,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2023-03-31 00:49:31,089 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-03-31 00:49:31,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2023-03-31 00:49:31,089 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-03-31 00:49:31,089 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2023-03-31 00:49:31,089 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-03-31 00:49:31,089 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2023-03-31 00:49:31,089 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 00:49:31,089 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2023-03-31 00:49:31,089 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-03-31 00:49:31,089 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2023-03-31 00:49:31,089 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-03-31 00:49:31,089 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2023-03-31 00:49:31,089 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-03-31 00:49:31,089 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2023-03-31 00:49:31,089 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2023-03-31 00:49:31,090 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-03-31 00:49:31,090 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2023-03-31 00:49:31,090 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 00:49:31,090 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2023-03-31 00:49:31,090 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2023-03-31 00:49:31,090 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2023-03-31 00:49:31,090 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 00:49:31,090 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2023-03-31 00:49:31,090 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 00:49:31,090 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 00:49:31,090 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 00:49:31,090 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-03-31 00:49:31,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-03-31 00:49:31,090 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-03-31 00:49:31,090 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2023-03-31 00:49:31,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-03-31 00:49:31,091 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-03-31 00:49:31,091 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-03-31 00:49:31,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-03-31 00:49:31,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 00:49:31,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 00:49:31,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 00:49:31,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 00:49:31,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 00:49:31,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 00:49:31,091 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 00:49:31,091 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2023-03-31 00:49:31,091 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2023-03-31 00:49:31,091 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-03-31 00:49:31,091 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-03-31 00:49:31,092 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-03-31 00:49:31,092 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 00:49:31,092 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 00:49:31,092 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 00:49:31,092 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 00:49:31,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2023-03-31 00:49:31,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2023-03-31 00:49:31,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2023-03-31 00:49:31,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2023-03-31 00:49:31,092 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 00:49:31,092 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 00:49:31,092 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 00:49:31,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 00:49:31,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 00:49:31,092 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 00:49:31,093 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 00:49:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-03-31 00:49:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-03-31 00:49:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-03-31 00:49:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-03-31 00:49:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-03-31 00:49:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-03-31 00:49:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-03-31 00:49:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-03-31 00:49:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 00:49:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-03-31 00:49:31,095 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2023-03-31 00:49:31,095 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-03-31 00:49:31,095 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2023-03-31 00:49:31,095 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-03-31 00:49:31,095 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-03-31 00:49:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2023-03-31 00:49:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-03-31 00:49:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-03-31 00:49:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2023-03-31 00:49:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-03-31 00:49:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-03-31 00:49:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2023-03-31 00:49:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-03-31 00:49:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2023-03-31 00:49:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-03-31 00:49:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-03-31 00:49:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2023-03-31 00:49:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-03-31 00:49:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2023-03-31 00:49:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2023-03-31 00:49:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-03-31 00:49:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 00:49:31,097 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2023-03-31 00:49:31,097 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-03-31 00:49:31,097 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-03-31 00:49:31,097 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-03-31 00:49:31,097 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2023-03-31 00:49:31,097 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-03-31 00:49:31,097 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2023-03-31 00:49:31,098 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2023-03-31 00:49:31,098 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-03-31 00:49:31,098 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2023-03-31 00:49:31,098 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 00:49:31,098 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2023-03-31 00:49:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2023-03-31 00:49:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2023-03-31 00:49:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 00:49:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2023-03-31 00:49:31,100 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 00:49:31,102 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2023-03-31 00:49:31,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2023-03-31 00:49:31,103 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 00:49:31,103 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 00:49:31,103 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 00:49:31,103 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 00:49:31,103 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 00:49:31,103 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 00:49:31,103 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2023-03-31 00:49:31,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2023-03-31 00:49:31,103 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 00:49:31,103 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 00:49:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 00:49:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 00:49:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 00:49:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 00:49:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 00:49:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 00:49:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 00:49:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 00:49:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 00:49:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 00:49:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 00:49:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 00:49:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 00:49:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2023-03-31 00:49:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2023-03-31 00:49:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-03-31 00:49:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 00:49:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 00:49:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 00:49:31,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 00:49:31,318 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 00:49:31,321 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 00:49:32,350 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 00:49:32,359 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 00:49:32,359 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-03-31 00:49:32,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:49:32 BoogieIcfgContainer [2023-03-31 00:49:32,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 00:49:32,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 00:49:32,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 00:49:32,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 00:49:32,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 12:49:30" (1/3) ... [2023-03-31 00:49:32,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a33e21d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:49:32, skipping insertion in model container [2023-03-31 00:49:32,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:49:30" (2/3) ... [2023-03-31 00:49:32,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a33e21d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:49:32, skipping insertion in model container [2023-03-31 00:49:32,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:49:32" (3/3) ... [2023-03-31 00:49:32,367 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product01.cil.c [2023-03-31 00:49:32,379 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 00:49:32,379 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 00:49:32,435 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 00:49:32,440 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;@63df7105, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 00:49:32,440 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 00:49:32,446 INFO L276 IsEmpty]: Start isEmpty. Operand has 722 states, 503 states have (on average 1.6520874751491055) internal successors, (831), 530 states have internal predecessors, (831), 162 states have call successors, (162), 44 states have call predecessors, (162), 44 states have return successors, (162), 153 states have call predecessors, (162), 162 states have call successors, (162) [2023-03-31 00:49:32,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-03-31 00:49:32,464 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:49:32,465 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:49:32,465 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:49:32,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:49:32,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1945212947, now seen corresponding path program 1 times [2023-03-31 00:49:32,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:49:32,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136848910] [2023-03-31 00:49:32,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:32,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:49:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:33,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:49:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:49:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:49:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:49:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:49:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:49:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-03-31 00:49:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:49:33,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:49:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 00:49:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:33,782 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-03-31 00:49:33,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:49:33,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136848910] [2023-03-31 00:49:33,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136848910] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:49:33,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850632326] [2023-03-31 00:49:33,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:33,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:49:33,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:49:33,786 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 00:49:33,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 00:49:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:34,279 INFO L262 TraceCheckSpWp]: Trace formula consists of 2858 conjuncts, 1 conjunts are in the unsatisfiable core [2023-03-31 00:49:34,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:49:34,337 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-03-31 00:49:34,338 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 00:49:34,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850632326] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:49:34,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 00:49:34,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [10] total 10 [2023-03-31 00:49:34,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004819492] [2023-03-31 00:49:34,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:49:34,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 00:49:34,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:49:34,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 00:49:34,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-03-31 00:49:34,381 INFO L87 Difference]: Start difference. First operand has 722 states, 503 states have (on average 1.6520874751491055) internal successors, (831), 530 states have internal predecessors, (831), 162 states have call successors, (162), 44 states have call predecessors, (162), 44 states have return successors, (162), 153 states have call predecessors, (162), 162 states have call successors, (162) Second operand has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2023-03-31 00:49:34,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:49:34,448 INFO L93 Difference]: Finished difference Result 605 states and 974 transitions. [2023-03-31 00:49:34,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 00:49:34,450 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 138 [2023-03-31 00:49:34,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:49:34,472 INFO L225 Difference]: With dead ends: 605 [2023-03-31 00:49:34,472 INFO L226 Difference]: Without dead ends: 568 [2023-03-31 00:49:34,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-03-31 00:49:34,479 INFO L413 NwaCegarLoop]: 929 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 00:49:34,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 00:49:34,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-03-31 00:49:34,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2023-03-31 00:49:34,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 421 states have (on average 1.6840855106888362) internal successors, (709), 440 states have internal predecessors, (709), 109 states have call successors, (109), 41 states have call predecessors, (109), 37 states have return successors, (101), 98 states have call predecessors, (101), 101 states have call successors, (101) [2023-03-31 00:49:34,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 919 transitions. [2023-03-31 00:49:34,581 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 919 transitions. Word has length 138 [2023-03-31 00:49:34,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:49:34,585 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 919 transitions. [2023-03-31 00:49:34,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2023-03-31 00:49:34,585 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 919 transitions. [2023-03-31 00:49:34,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-03-31 00:49:34,592 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:49:34,593 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:49:34,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-03-31 00:49:34,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-03-31 00:49:34,802 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:49:34,802 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:49:34,803 INFO L85 PathProgramCache]: Analyzing trace with hash 503987744, now seen corresponding path program 1 times [2023-03-31 00:49:34,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:49:34,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60909318] [2023-03-31 00:49:34,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:34,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:49:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:35,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:49:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:49:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:49:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:49:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:49:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:49:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-03-31 00:49:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:49:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:49:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 00:49:35,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:35,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:35,643 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-03-31 00:49:35,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:49:35,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60909318] [2023-03-31 00:49:35,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60909318] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:49:35,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636653071] [2023-03-31 00:49:35,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:35,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:49:35,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:49:35,654 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 00:49:35,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-31 00:49:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:36,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 2861 conjuncts, 3 conjunts are in the unsatisfiable core [2023-03-31 00:49:36,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:49:36,180 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-03-31 00:49:36,181 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 00:49:36,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636653071] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:49:36,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 00:49:36,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-03-31 00:49:36,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775377007] [2023-03-31 00:49:36,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:49:36,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 00:49:36,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:49:36,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 00:49:36,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-03-31 00:49:36,184 INFO L87 Difference]: Start difference. First operand 568 states and 919 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-03-31 00:49:36,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:49:36,278 INFO L93 Difference]: Finished difference Result 1108 states and 1811 transitions. [2023-03-31 00:49:36,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-03-31 00:49:36,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 140 [2023-03-31 00:49:36,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:49:36,284 INFO L225 Difference]: With dead ends: 1108 [2023-03-31 00:49:36,284 INFO L226 Difference]: Without dead ends: 568 [2023-03-31 00:49:36,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:49:36,291 INFO L413 NwaCegarLoop]: 905 mSDtfsCounter, 14 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2708 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 00:49:36,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2708 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 00:49:36,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-03-31 00:49:36,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2023-03-31 00:49:36,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 421 states have (on average 1.6817102137767221) internal successors, (708), 440 states have internal predecessors, (708), 109 states have call successors, (109), 41 states have call predecessors, (109), 37 states have return successors, (101), 98 states have call predecessors, (101), 101 states have call successors, (101) [2023-03-31 00:49:36,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 918 transitions. [2023-03-31 00:49:36,323 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 918 transitions. Word has length 140 [2023-03-31 00:49:36,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:49:36,323 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 918 transitions. [2023-03-31 00:49:36,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-03-31 00:49:36,323 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 918 transitions. [2023-03-31 00:49:36,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-03-31 00:49:36,328 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:49:36,328 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:49:36,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-31 00:49:36,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-03-31 00:49:36,541 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:49:36,541 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:49:36,542 INFO L85 PathProgramCache]: Analyzing trace with hash -2008292290, now seen corresponding path program 1 times [2023-03-31 00:49:36,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:49:36,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678974655] [2023-03-31 00:49:36,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:36,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:49:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:36,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:36,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:36,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:36,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:36,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:49:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:36,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:49:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:36,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:49:36,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:37,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:37,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:37,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:37,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:49:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:37,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:37,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:37,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-03-31 00:49:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:37,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:37,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:49:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:37,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:37,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:37,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-03-31 00:49:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:37,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:37,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:37,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:37,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:37,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:49:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:37,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:49:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:37,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 00:49:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:37,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:37,279 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-03-31 00:49:37,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:49:37,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678974655] [2023-03-31 00:49:37,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678974655] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:49:37,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290030909] [2023-03-31 00:49:37,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:37,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:49:37,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:49:37,281 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 00:49:37,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-03-31 00:49:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:37,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 2863 conjuncts, 3 conjunts are in the unsatisfiable core [2023-03-31 00:49:37,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:49:37,717 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-03-31 00:49:37,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 00:49:37,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290030909] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:49:37,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 00:49:37,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-03-31 00:49:37,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295975161] [2023-03-31 00:49:37,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:49:37,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 00:49:37,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:49:37,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 00:49:37,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-03-31 00:49:37,719 INFO L87 Difference]: Start difference. First operand 568 states and 918 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-03-31 00:49:37,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:49:37,785 INFO L93 Difference]: Finished difference Result 1108 states and 1809 transitions. [2023-03-31 00:49:37,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-03-31 00:49:37,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 142 [2023-03-31 00:49:37,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:49:37,789 INFO L225 Difference]: With dead ends: 1108 [2023-03-31 00:49:37,789 INFO L226 Difference]: Without dead ends: 568 [2023-03-31 00:49:37,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:49:37,792 INFO L413 NwaCegarLoop]: 905 mSDtfsCounter, 12 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2708 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 00:49:37,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2708 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 00:49:37,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-03-31 00:49:37,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2023-03-31 00:49:37,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 421 states have (on average 1.6793349168646081) internal successors, (707), 440 states have internal predecessors, (707), 109 states have call successors, (109), 41 states have call predecessors, (109), 37 states have return successors, (101), 98 states have call predecessors, (101), 101 states have call successors, (101) [2023-03-31 00:49:37,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 917 transitions. [2023-03-31 00:49:37,810 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 917 transitions. Word has length 142 [2023-03-31 00:49:37,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:49:37,810 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 917 transitions. [2023-03-31 00:49:37,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-03-31 00:49:37,811 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 917 transitions. [2023-03-31 00:49:37,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-03-31 00:49:37,813 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:49:37,813 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:49:37,823 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-03-31 00:49:38,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:49:38,023 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:49:38,024 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:49:38,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1735850840, now seen corresponding path program 1 times [2023-03-31 00:49:38,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:49:38,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812064960] [2023-03-31 00:49:38,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:38,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:49:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:49:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:49:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:49:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 00:49:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:38,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:38,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-03-31 00:49:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:49:38,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:49:38,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 00:49:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:38,740 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-03-31 00:49:38,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:49:38,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812064960] [2023-03-31 00:49:38,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812064960] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:49:38,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535032377] [2023-03-31 00:49:38,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:38,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:49:38,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:49:38,742 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 00:49:38,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-03-31 00:49:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:39,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 2865 conjuncts, 3 conjunts are in the unsatisfiable core [2023-03-31 00:49:39,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:49:39,232 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-03-31 00:49:39,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 00:49:39,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535032377] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:49:39,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 00:49:39,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-03-31 00:49:39,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753181006] [2023-03-31 00:49:39,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:49:39,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 00:49:39,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:49:39,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 00:49:39,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-03-31 00:49:39,234 INFO L87 Difference]: Start difference. First operand 568 states and 917 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-03-31 00:49:39,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:49:39,288 INFO L93 Difference]: Finished difference Result 1115 states and 1816 transitions. [2023-03-31 00:49:39,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 00:49:39,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 144 [2023-03-31 00:49:39,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:49:39,292 INFO L225 Difference]: With dead ends: 1115 [2023-03-31 00:49:39,292 INFO L226 Difference]: Without dead ends: 577 [2023-03-31 00:49:39,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:49:39,295 INFO L413 NwaCegarLoop]: 905 mSDtfsCounter, 20 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2708 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 00:49:39,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2708 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 00:49:39,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2023-03-31 00:49:39,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2023-03-31 00:49:39,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 429 states have (on average 1.675990675990676) internal successors, (719), 448 states have internal predecessors, (719), 109 states have call successors, (109), 42 states have call predecessors, (109), 38 states have return successors, (101), 98 states have call predecessors, (101), 101 states have call successors, (101) [2023-03-31 00:49:39,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 929 transitions. [2023-03-31 00:49:39,322 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 929 transitions. Word has length 144 [2023-03-31 00:49:39,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:49:39,322 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 929 transitions. [2023-03-31 00:49:39,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-03-31 00:49:39,322 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 929 transitions. [2023-03-31 00:49:39,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-03-31 00:49:39,325 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:49:39,325 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:49:39,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-03-31 00:49:39,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:49:39,533 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:49:39,533 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:49:39,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1608513725, now seen corresponding path program 1 times [2023-03-31 00:49:39,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:49:39,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036001365] [2023-03-31 00:49:39,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:39,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:49:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:39,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:39,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:39,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:39,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:39,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:49:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:39,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:49:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:39,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:49:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:40,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:40,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:40,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 00:49:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:40,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:40,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:40,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-03-31 00:49:40,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:40,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:40,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:40,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:40,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:40,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:40,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-03-31 00:49:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:40,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:40,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:40,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:40,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:49:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:40,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:49:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:40,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 00:49:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:40,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:40,192 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-03-31 00:49:40,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:49:40,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036001365] [2023-03-31 00:49:40,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036001365] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:49:40,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790938013] [2023-03-31 00:49:40,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:40,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:49:40,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:49:40,194 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 00:49:40,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-03-31 00:49:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:40,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 2866 conjuncts, 3 conjunts are in the unsatisfiable core [2023-03-31 00:49:40,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:49:40,635 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-03-31 00:49:40,635 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 00:49:40,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790938013] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:49:40,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 00:49:40,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-03-31 00:49:40,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818846259] [2023-03-31 00:49:40,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:49:40,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 00:49:40,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:49:40,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 00:49:40,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-03-31 00:49:40,637 INFO L87 Difference]: Start difference. First operand 577 states and 929 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-03-31 00:49:40,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:49:40,696 INFO L93 Difference]: Finished difference Result 1117 states and 1817 transitions. [2023-03-31 00:49:40,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 00:49:40,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 145 [2023-03-31 00:49:40,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:49:40,700 INFO L225 Difference]: With dead ends: 1117 [2023-03-31 00:49:40,700 INFO L226 Difference]: Without dead ends: 577 [2023-03-31 00:49:40,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:49:40,702 INFO L413 NwaCegarLoop]: 905 mSDtfsCounter, 18 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2708 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 00:49:40,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2708 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 00:49:40,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2023-03-31 00:49:40,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2023-03-31 00:49:40,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 429 states have (on average 1.6736596736596736) internal successors, (718), 448 states have internal predecessors, (718), 109 states have call successors, (109), 42 states have call predecessors, (109), 38 states have return successors, (101), 98 states have call predecessors, (101), 101 states have call successors, (101) [2023-03-31 00:49:40,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 928 transitions. [2023-03-31 00:49:40,717 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 928 transitions. Word has length 145 [2023-03-31 00:49:40,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:49:40,718 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 928 transitions. [2023-03-31 00:49:40,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-03-31 00:49:40,718 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 928 transitions. [2023-03-31 00:49:40,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-03-31 00:49:40,720 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:49:40,720 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:49:40,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-03-31 00:49:40,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:49:40,929 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:49:40,929 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:49:40,929 INFO L85 PathProgramCache]: Analyzing trace with hash -955789044, now seen corresponding path program 1 times [2023-03-31 00:49:40,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:49:40,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620601531] [2023-03-31 00:49:40,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:40,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:49:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:49:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:49:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:49:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-03-31 00:49:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 00:49:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-03-31 00:49:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:41,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:49:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:49:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 00:49:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:41,699 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-03-31 00:49:41,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:49:41,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620601531] [2023-03-31 00:49:41,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620601531] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:49:41,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236009015] [2023-03-31 00:49:41,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:41,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:49:41,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:49:41,701 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 00:49:41,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-03-31 00:49:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:42,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 2867 conjuncts, 3 conjunts are in the unsatisfiable core [2023-03-31 00:49:42,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:49:42,154 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-03-31 00:49:42,154 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 00:49:42,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236009015] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:49:42,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 00:49:42,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-03-31 00:49:42,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209957819] [2023-03-31 00:49:42,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:49:42,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 00:49:42,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:49:42,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 00:49:42,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-03-31 00:49:42,156 INFO L87 Difference]: Start difference. First operand 577 states and 928 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-03-31 00:49:42,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:49:42,200 INFO L93 Difference]: Finished difference Result 1117 states and 1816 transitions. [2023-03-31 00:49:42,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 00:49:42,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 146 [2023-03-31 00:49:42,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:49:42,203 INFO L225 Difference]: With dead ends: 1117 [2023-03-31 00:49:42,203 INFO L226 Difference]: Without dead ends: 577 [2023-03-31 00:49:42,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:49:42,205 INFO L413 NwaCegarLoop]: 905 mSDtfsCounter, 17 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2708 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 00:49:42,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2708 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 00:49:42,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2023-03-31 00:49:42,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2023-03-31 00:49:42,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 429 states have (on average 1.6713286713286712) internal successors, (717), 448 states have internal predecessors, (717), 109 states have call successors, (109), 42 states have call predecessors, (109), 38 states have return successors, (101), 98 states have call predecessors, (101), 101 states have call successors, (101) [2023-03-31 00:49:42,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 927 transitions. [2023-03-31 00:49:42,219 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 927 transitions. Word has length 146 [2023-03-31 00:49:42,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:49:42,220 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 927 transitions. [2023-03-31 00:49:42,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-03-31 00:49:42,220 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 927 transitions. [2023-03-31 00:49:42,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-03-31 00:49:42,222 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:49:42,222 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:49:42,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-03-31 00:49:42,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:49:42,432 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:49:42,432 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:49:42,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1195919001, now seen corresponding path program 1 times [2023-03-31 00:49:42,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:49:42,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980332209] [2023-03-31 00:49:42,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:42,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:49:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:42,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:42,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:42,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:42,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:42,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:42,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:49:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:42,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:49:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:42,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:49:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:43,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:43,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:43,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:43,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:43,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:43,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:43,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:43,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:43,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-03-31 00:49:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:43,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:43,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:43,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:43,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:43,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:43,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-03-31 00:49:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:43,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:43,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:43,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:43,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:43,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:49:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:43,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:49:43,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:43,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 00:49:43,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:43,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:43,200 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-03-31 00:49:43,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:49:43,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980332209] [2023-03-31 00:49:43,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980332209] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:49:43,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767658727] [2023-03-31 00:49:43,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:43,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:49:43,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:49:43,202 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 00:49:43,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-03-31 00:49:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:43,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 2868 conjuncts, 7 conjunts are in the unsatisfiable core [2023-03-31 00:49:43,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:49:43,738 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:49:43,738 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 00:49:43,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767658727] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:49:43,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 00:49:43,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2023-03-31 00:49:43,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678342713] [2023-03-31 00:49:43,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:49:43,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 00:49:43,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:49:43,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 00:49:43,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-03-31 00:49:43,740 INFO L87 Difference]: Start difference. First operand 577 states and 927 transitions. Second operand has 7 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-03-31 00:49:43,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:49:43,837 INFO L93 Difference]: Finished difference Result 1124 states and 1825 transitions. [2023-03-31 00:49:43,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 00:49:43,837 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 147 [2023-03-31 00:49:43,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:49:43,840 INFO L225 Difference]: With dead ends: 1124 [2023-03-31 00:49:43,840 INFO L226 Difference]: Without dead ends: 588 [2023-03-31 00:49:43,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-03-31 00:49:43,843 INFO L413 NwaCegarLoop]: 907 mSDtfsCounter, 84 mSDsluCounter, 4437 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 5344 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:49:43,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 5344 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 00:49:43,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-03-31 00:49:43,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 584. [2023-03-31 00:49:43,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 432 states have (on average 1.6666666666666667) internal successors, (720), 453 states have internal predecessors, (720), 111 states have call successors, (111), 42 states have call predecessors, (111), 40 states have return successors, (106), 100 states have call predecessors, (106), 103 states have call successors, (106) [2023-03-31 00:49:43,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 937 transitions. [2023-03-31 00:49:43,859 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 937 transitions. Word has length 147 [2023-03-31 00:49:43,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:49:43,859 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 937 transitions. [2023-03-31 00:49:43,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-03-31 00:49:43,860 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 937 transitions. [2023-03-31 00:49:43,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-03-31 00:49:43,862 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:49:43,862 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:49:43,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-03-31 00:49:44,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:49:44,070 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:49:44,070 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:49:44,070 INFO L85 PathProgramCache]: Analyzing trace with hash -2019600472, now seen corresponding path program 1 times [2023-03-31 00:49:44,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:49:44,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112658079] [2023-03-31 00:49:44,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:44,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:49:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:44,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:49:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:49:44,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:49:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-03-31 00:49:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:49:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-03-31 00:49:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:44,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:49:44,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:49:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 00:49:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:44,732 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-03-31 00:49:44,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:49:44,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112658079] [2023-03-31 00:49:44,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112658079] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:49:44,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389781876] [2023-03-31 00:49:44,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:44,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:49:44,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:49:44,733 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 00:49:44,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-03-31 00:49:45,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 2867 conjuncts, 3 conjunts are in the unsatisfiable core [2023-03-31 00:49:45,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:49:45,255 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:49:45,255 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 00:49:45,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389781876] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:49:45,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 00:49:45,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-03-31 00:49:45,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240230595] [2023-03-31 00:49:45,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:49:45,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 00:49:45,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:49:45,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 00:49:45,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-03-31 00:49:45,258 INFO L87 Difference]: Start difference. First operand 584 states and 937 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-03-31 00:49:45,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:49:45,367 INFO L93 Difference]: Finished difference Result 1129 states and 1836 transitions. [2023-03-31 00:49:45,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-03-31 00:49:45,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 147 [2023-03-31 00:49:45,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:49:45,372 INFO L225 Difference]: With dead ends: 1129 [2023-03-31 00:49:45,372 INFO L226 Difference]: Without dead ends: 584 [2023-03-31 00:49:45,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:49:45,376 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 71 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:49:45,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 2546 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 00:49:45,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2023-03-31 00:49:45,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2023-03-31 00:49:45,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 432 states have (on average 1.6550925925925926) internal successors, (715), 453 states have internal predecessors, (715), 111 states have call successors, (111), 42 states have call predecessors, (111), 40 states have return successors, (106), 100 states have call predecessors, (106), 103 states have call successors, (106) [2023-03-31 00:49:45,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 932 transitions. [2023-03-31 00:49:45,394 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 932 transitions. Word has length 147 [2023-03-31 00:49:45,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:49:45,394 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 932 transitions. [2023-03-31 00:49:45,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-03-31 00:49:45,394 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 932 transitions. [2023-03-31 00:49:45,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-03-31 00:49:45,397 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:49:45,397 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:49:45,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-03-31 00:49:45,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-03-31 00:49:45,605 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:49:45,605 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:49:45,606 INFO L85 PathProgramCache]: Analyzing trace with hash 757344474, now seen corresponding path program 1 times [2023-03-31 00:49:45,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:49:45,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677307051] [2023-03-31 00:49:45,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:45,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:49:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:49:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:45,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:49:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:49:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:46,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-03-31 00:49:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 00:49:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-03-31 00:49:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-03-31 00:49:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:49:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:49:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 00:49:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:46,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,302 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-03-31 00:49:46,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:49:46,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677307051] [2023-03-31 00:49:46,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677307051] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:49:46,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903778636] [2023-03-31 00:49:46,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:46,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:49:46,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:49:46,316 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 00:49:46,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-03-31 00:49:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:46,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 2869 conjuncts, 3 conjunts are in the unsatisfiable core [2023-03-31 00:49:46,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:49:46,751 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:49:46,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 00:49:46,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903778636] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:49:46,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 00:49:46,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-03-31 00:49:46,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566063902] [2023-03-31 00:49:46,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:49:46,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 00:49:46,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:49:46,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 00:49:46,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-03-31 00:49:46,753 INFO L87 Difference]: Start difference. First operand 584 states and 932 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-03-31 00:49:46,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:49:46,850 INFO L93 Difference]: Finished difference Result 1129 states and 1826 transitions. [2023-03-31 00:49:46,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-03-31 00:49:46,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 149 [2023-03-31 00:49:46,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:49:46,854 INFO L225 Difference]: With dead ends: 1129 [2023-03-31 00:49:46,854 INFO L226 Difference]: Without dead ends: 584 [2023-03-31 00:49:46,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:49:46,857 INFO L413 NwaCegarLoop]: 855 mSDtfsCounter, 65 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:49:46,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 2546 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 00:49:46,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2023-03-31 00:49:46,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2023-03-31 00:49:46,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 432 states have (on average 1.6435185185185186) internal successors, (710), 453 states have internal predecessors, (710), 111 states have call successors, (111), 42 states have call predecessors, (111), 40 states have return successors, (106), 100 states have call predecessors, (106), 103 states have call successors, (106) [2023-03-31 00:49:46,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 927 transitions. [2023-03-31 00:49:46,871 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 927 transitions. Word has length 149 [2023-03-31 00:49:46,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:49:46,871 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 927 transitions. [2023-03-31 00:49:46,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-03-31 00:49:46,872 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 927 transitions. [2023-03-31 00:49:46,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-03-31 00:49:46,874 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:49:46,874 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:49:46,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-03-31 00:49:47,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:49:47,082 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:49:47,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:49:47,082 INFO L85 PathProgramCache]: Analyzing trace with hash -203713250, now seen corresponding path program 1 times [2023-03-31 00:49:47,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:49:47,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921905819] [2023-03-31 00:49:47,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:47,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:49:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:49:47,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:49:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:49:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-03-31 00:49:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-03-31 00:49:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-03-31 00:49:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-03-31 00:49:47,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:47,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:49:47,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:49:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 00:49:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:47,853 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-03-31 00:49:47,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:49:47,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921905819] [2023-03-31 00:49:47,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921905819] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:49:47,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709282752] [2023-03-31 00:49:47,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:47,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:49:47,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:49:47,869 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 00:49:47,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-03-31 00:49:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:48,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 2871 conjuncts, 3 conjunts are in the unsatisfiable core [2023-03-31 00:49:48,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:49:48,336 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:49:48,337 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 00:49:48,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709282752] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:49:48,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 00:49:48,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 19 [2023-03-31 00:49:48,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850142401] [2023-03-31 00:49:48,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:49:48,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 00:49:48,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:49:48,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 00:49:48,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-03-31 00:49:48,339 INFO L87 Difference]: Start difference. First operand 584 states and 927 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-03-31 00:49:48,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:49:48,477 INFO L93 Difference]: Finished difference Result 1165 states and 1874 transitions. [2023-03-31 00:49:48,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 00:49:48,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 151 [2023-03-31 00:49:48,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:49:48,481 INFO L225 Difference]: With dead ends: 1165 [2023-03-31 00:49:48,481 INFO L226 Difference]: Without dead ends: 626 [2023-03-31 00:49:48,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2023-03-31 00:49:48,483 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 115 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 2556 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:49:48,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 2556 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 00:49:48,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2023-03-31 00:49:48,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 623. [2023-03-31 00:49:48,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 469 states have (on average 1.6460554371002132) internal successors, (772), 490 states have internal predecessors, (772), 112 states have call successors, (112), 43 states have call predecessors, (112), 41 states have return successors, (106), 101 states have call predecessors, (106), 104 states have call successors, (106) [2023-03-31 00:49:48,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 990 transitions. [2023-03-31 00:49:48,501 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 990 transitions. Word has length 151 [2023-03-31 00:49:48,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:49:48,501 INFO L495 AbstractCegarLoop]: Abstraction has 623 states and 990 transitions. [2023-03-31 00:49:48,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-03-31 00:49:48,501 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 990 transitions. [2023-03-31 00:49:48,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-03-31 00:49:48,503 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:49:48,504 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:49:48,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-03-31 00:49:48,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-03-31 00:49:48,711 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:49:48,712 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:49:48,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1380425991, now seen corresponding path program 1 times [2023-03-31 00:49:48,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:49:48,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845850375] [2023-03-31 00:49:48,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:48,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:49:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:49:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:49:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:49:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:49,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-03-31 00:49:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-03-31 00:49:49,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 00:49:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:49:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:49:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 00:49:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:49,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:49,568 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-03-31 00:49:49,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:49:49,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845850375] [2023-03-31 00:49:49,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845850375] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:49:49,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:49:49,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-03-31 00:49:49,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064035835] [2023-03-31 00:49:49,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:49:49,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-03-31 00:49:49,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:49:49,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-03-31 00:49:49,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-03-31 00:49:49,570 INFO L87 Difference]: Start difference. First operand 623 states and 990 transitions. Second operand has 15 states, 14 states have (on average 6.357142857142857) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (28), 8 states have call predecessors, (28), 4 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2023-03-31 00:49:59,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:49:59,243 INFO L93 Difference]: Finished difference Result 1480 states and 2554 transitions. [2023-03-31 00:49:59,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-03-31 00:49:59,243 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.357142857142857) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (28), 8 states have call predecessors, (28), 4 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) Word has length 152 [2023-03-31 00:49:59,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:49:59,248 INFO L225 Difference]: With dead ends: 1480 [2023-03-31 00:49:59,248 INFO L226 Difference]: Without dead ends: 1016 [2023-03-31 00:49:59,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=349, Invalid=1211, Unknown=0, NotChecked=0, Total=1560 [2023-03-31 00:49:59,251 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 1190 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 8799 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 9251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 8799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-03-31 00:49:59,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1250 Valid, 1248 Invalid, 9251 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [452 Valid, 8799 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-03-31 00:49:59,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2023-03-31 00:49:59,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 630. [2023-03-31 00:49:59,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 472 states have (on average 1.6419491525423728) internal successors, (775), 495 states have internal predecessors, (775), 114 states have call successors, (114), 43 states have call predecessors, (114), 43 states have return successors, (110), 103 states have call predecessors, (110), 106 states have call successors, (110) [2023-03-31 00:49:59,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 999 transitions. [2023-03-31 00:49:59,390 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 999 transitions. Word has length 152 [2023-03-31 00:49:59,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:49:59,391 INFO L495 AbstractCegarLoop]: Abstraction has 630 states and 999 transitions. [2023-03-31 00:49:59,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.357142857142857) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (28), 8 states have call predecessors, (28), 4 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2023-03-31 00:49:59,391 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 999 transitions. [2023-03-31 00:49:59,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-03-31 00:49:59,394 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:49:59,394 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:49:59,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-03-31 00:49:59,394 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:49:59,394 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:49:59,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1092616734, now seen corresponding path program 1 times [2023-03-31 00:49:59,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:49:59,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18576204] [2023-03-31 00:49:59,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:49:59,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:49:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:59,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:59,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:59,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:49:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:59,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:59,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:49:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:59,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:49:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:59,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:49:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:59,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:49:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:59,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:59,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:49:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:59,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:49:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:59,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:59,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-03-31 00:49:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:59,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:59,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 00:49:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:59,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-03-31 00:49:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:59,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:49:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:49:59,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-03-31 00:49:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:00,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:00,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:00,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:00,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:00,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:50:00,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:00,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:50:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:00,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 00:50:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:00,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:00,031 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-03-31 00:50:00,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:50:00,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18576204] [2023-03-31 00:50:00,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18576204] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:50:00,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:50:00,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 00:50:00,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12322337] [2023-03-31 00:50:00,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:50:00,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 00:50:00,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:50:00,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 00:50:00,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-03-31 00:50:00,032 INFO L87 Difference]: Start difference. First operand 630 states and 999 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 4 states have internal predecessors, (91), 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 00:50:06,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:50:06,210 INFO L93 Difference]: Finished difference Result 1506 states and 2565 transitions. [2023-03-31 00:50:06,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 00:50:06,211 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 4 states have internal predecessors, (91), 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 153 [2023-03-31 00:50:06,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:50:06,215 INFO L225 Difference]: With dead ends: 1506 [2023-03-31 00:50:06,215 INFO L226 Difference]: Without dead ends: 938 [2023-03-31 00:50:06,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=92, Invalid=148, Unknown=0, NotChecked=0, Total=240 [2023-03-31 00:50:06,217 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 1815 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 4188 mSolverCounterSat, 645 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1874 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 4833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 645 IncrementalHoareTripleChecker+Valid, 4188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-03-31 00:50:06,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1874 Valid, 528 Invalid, 4833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [645 Valid, 4188 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-03-31 00:50:06,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2023-03-31 00:50:06,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 594. [2023-03-31 00:50:06,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 440 states have (on average 1.6204545454545454) internal successors, (713), 461 states have internal predecessors, (713), 112 states have call successors, (112), 43 states have call predecessors, (112), 41 states have return successors, (106), 101 states have call predecessors, (106), 104 states have call successors, (106) [2023-03-31 00:50:06,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 931 transitions. [2023-03-31 00:50:06,358 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 931 transitions. Word has length 153 [2023-03-31 00:50:06,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:50:06,358 INFO L495 AbstractCegarLoop]: Abstraction has 594 states and 931 transitions. [2023-03-31 00:50:06,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 4 states have internal predecessors, (91), 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 00:50:06,358 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 931 transitions. [2023-03-31 00:50:06,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-03-31 00:50:06,360 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:50:06,360 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:50:06,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-03-31 00:50:06,361 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:50:06,361 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:50:06,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1590031628, now seen corresponding path program 1 times [2023-03-31 00:50:06,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:50:06,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29651472] [2023-03-31 00:50:06,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:50:06,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:50:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:06,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:50:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:06,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:50:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:06,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:50:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:06,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:50:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:06,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:50:06,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:06,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:50:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:06,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:50:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:06,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:50:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:06,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:06,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:50:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:06,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:50:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:06,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:06,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-03-31 00:50:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:06,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:06,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:06,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:50:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:06,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:50:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:06,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:07,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-03-31 00:50:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:07,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:07,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:07,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:07,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:07,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:50:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:07,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:50:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:07,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 00:50:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:07,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:07,036 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-03-31 00:50:07,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:50:07,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29651472] [2023-03-31 00:50:07,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29651472] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:50:07,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:50:07,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-03-31 00:50:07,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198512184] [2023-03-31 00:50:07,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:50:07,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-03-31 00:50:07,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:50:07,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-03-31 00:50:07,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:50:07,038 INFO L87 Difference]: Start difference. First operand 594 states and 931 transitions. Second operand has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 7 states have internal predecessors, (95), 5 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (25), 3 states have call predecessors, (25), 5 states have call successors, (25) [2023-03-31 00:50:14,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:50:14,144 INFO L93 Difference]: Finished difference Result 1456 states and 2475 transitions. [2023-03-31 00:50:14,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-03-31 00:50:14,145 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 7 states have internal predecessors, (95), 5 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (25), 3 states have call predecessors, (25), 5 states have call successors, (25) Word has length 154 [2023-03-31 00:50:14,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:50:14,149 INFO L225 Difference]: With dead ends: 1456 [2023-03-31 00:50:14,149 INFO L226 Difference]: Without dead ends: 947 [2023-03-31 00:50:14,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=149, Invalid=553, Unknown=0, NotChecked=0, Total=702 [2023-03-31 00:50:14,151 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 2163 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 7177 mSolverCounterSat, 796 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2222 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 7973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 796 IncrementalHoareTripleChecker+Valid, 7177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:50:14,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2222 Valid, 1048 Invalid, 7973 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [796 Valid, 7177 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-03-31 00:50:14,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2023-03-31 00:50:14,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 603. [2023-03-31 00:50:14,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 447 states have (on average 1.621923937360179) internal successors, (725), 469 states have internal predecessors, (725), 112 states have call successors, (112), 43 states have call predecessors, (112), 43 states have return successors, (108), 102 states have call predecessors, (108), 104 states have call successors, (108) [2023-03-31 00:50:14,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 945 transitions. [2023-03-31 00:50:14,316 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 945 transitions. Word has length 154 [2023-03-31 00:50:14,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:50:14,316 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 945 transitions. [2023-03-31 00:50:14,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 7 states have internal predecessors, (95), 5 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (25), 3 states have call predecessors, (25), 5 states have call successors, (25) [2023-03-31 00:50:14,317 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 945 transitions. [2023-03-31 00:50:14,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-03-31 00:50:14,319 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:50:14,319 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:50:14,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-03-31 00:50:14,319 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:50:14,320 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:50:14,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1259744690, now seen corresponding path program 1 times [2023-03-31 00:50:14,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:50:14,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272756354] [2023-03-31 00:50:14,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:50:14,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:50:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:50:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:50:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:50:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:50:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:50:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:50:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:50:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:50:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:50:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:50:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-03-31 00:50:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:50:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:50:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-03-31 00:50:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:50:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:50:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 00:50:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:14,996 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-03-31 00:50:14,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:50:14,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272756354] [2023-03-31 00:50:14,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272756354] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:50:14,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819575795] [2023-03-31 00:50:14,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:50:14,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:50:14,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:50:15,011 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 00:50:15,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-03-31 00:50:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:15,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 2875 conjuncts, 3 conjunts are in the unsatisfiable core [2023-03-31 00:50:15,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:50:15,488 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:50:15,488 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 00:50:15,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819575795] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:50:15,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 00:50:15,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 17 [2023-03-31 00:50:15,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358717433] [2023-03-31 00:50:15,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:50:15,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 00:50:15,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:50:15,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 00:50:15,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-03-31 00:50:15,489 INFO L87 Difference]: Start difference. First operand 603 states and 945 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-03-31 00:50:15,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:50:15,668 INFO L93 Difference]: Finished difference Result 1125 states and 1787 transitions. [2023-03-31 00:50:15,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 00:50:15,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 155 [2023-03-31 00:50:15,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:50:15,671 INFO L225 Difference]: With dead ends: 1125 [2023-03-31 00:50:15,671 INFO L226 Difference]: Without dead ends: 603 [2023-03-31 00:50:15,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2023-03-31 00:50:15,673 INFO L413 NwaCegarLoop]: 858 mSDtfsCounter, 65 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 2545 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:50:15,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 2545 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 00:50:15,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2023-03-31 00:50:15,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 603. [2023-03-31 00:50:15,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 447 states have (on average 1.610738255033557) internal successors, (720), 469 states have internal predecessors, (720), 112 states have call successors, (112), 43 states have call predecessors, (112), 43 states have return successors, (108), 102 states have call predecessors, (108), 104 states have call successors, (108) [2023-03-31 00:50:15,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 940 transitions. [2023-03-31 00:50:15,801 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 940 transitions. Word has length 155 [2023-03-31 00:50:15,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:50:15,801 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 940 transitions. [2023-03-31 00:50:15,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-03-31 00:50:15,801 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 940 transitions. [2023-03-31 00:50:15,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-03-31 00:50:15,803 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:50:15,804 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:50:15,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-03-31 00:50:16,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-03-31 00:50:16,012 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:50:16,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:50:16,012 INFO L85 PathProgramCache]: Analyzing trace with hash -638850994, now seen corresponding path program 1 times [2023-03-31 00:50:16,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:50:16,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449088538] [2023-03-31 00:50:16,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:50:16,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:50:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:50:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:50:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:50:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:50:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:50:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:50:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:50:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:50:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:50:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:50:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-03-31 00:50:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:50:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:50:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-03-31 00:50:16,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:50:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:50:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 00:50:16,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:16,660 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-03-31 00:50:16,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:50:16,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449088538] [2023-03-31 00:50:16,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449088538] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 00:50:16,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930690404] [2023-03-31 00:50:16,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:50:16,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 00:50:16,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:50:16,661 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 00:50:16,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-03-31 00:50:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:17,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 2876 conjuncts, 3 conjunts are in the unsatisfiable core [2023-03-31 00:50:17,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 00:50:17,114 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:50:17,114 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 00:50:17,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930690404] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:50:17,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 00:50:17,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 17 [2023-03-31 00:50:17,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935561029] [2023-03-31 00:50:17,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:50:17,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 00:50:17,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:50:17,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 00:50:17,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-03-31 00:50:17,116 INFO L87 Difference]: Start difference. First operand 603 states and 940 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-03-31 00:50:17,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:50:17,299 INFO L93 Difference]: Finished difference Result 1125 states and 1782 transitions. [2023-03-31 00:50:17,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 00:50:17,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 156 [2023-03-31 00:50:17,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:50:17,316 INFO L225 Difference]: With dead ends: 1125 [2023-03-31 00:50:17,316 INFO L226 Difference]: Without dead ends: 603 [2023-03-31 00:50:17,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2023-03-31 00:50:17,318 INFO L413 NwaCegarLoop]: 857 mSDtfsCounter, 61 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:50:17,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 2546 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 00:50:17,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2023-03-31 00:50:17,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 603. [2023-03-31 00:50:17,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 447 states have (on average 1.599552572706935) internal successors, (715), 469 states have internal predecessors, (715), 112 states have call successors, (112), 43 states have call predecessors, (112), 43 states have return successors, (108), 102 states have call predecessors, (108), 104 states have call successors, (108) [2023-03-31 00:50:17,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 935 transitions. [2023-03-31 00:50:17,439 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 935 transitions. Word has length 156 [2023-03-31 00:50:17,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:50:17,439 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 935 transitions. [2023-03-31 00:50:17,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2023-03-31 00:50:17,439 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 935 transitions. [2023-03-31 00:50:17,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-03-31 00:50:17,441 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:50:17,441 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:50:17,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-03-31 00:50:17,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-03-31 00:50:17,650 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:50:17,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:50:17,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1167477037, now seen corresponding path program 1 times [2023-03-31 00:50:17,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:50:17,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509570769] [2023-03-31 00:50:17,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:50:17,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:50:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:17,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:50:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:17,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:50:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:17,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:50:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:17,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:50:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:17,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:50:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:17,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:50:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:18,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:50:18,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:18,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:50:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:18,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:18,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:50:18,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:18,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:50:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:18,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:18,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:18,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-03-31 00:50:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:18,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:18,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:50:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:18,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:50:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:18,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:18,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-03-31 00:50:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:18,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:18,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:18,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:18,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:18,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:18,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:50:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:18,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:50:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:18,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 00:50:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:18,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:18,290 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-03-31 00:50:18,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:50:18,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509570769] [2023-03-31 00:50:18,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509570769] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:50:18,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:50:18,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-03-31 00:50:18,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547768807] [2023-03-31 00:50:18,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:50:18,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-03-31 00:50:18,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:50:18,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-03-31 00:50:18,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:50:18,292 INFO L87 Difference]: Start difference. First operand 603 states and 935 transitions. Second operand has 13 states, 12 states have (on average 8.166666666666666) internal successors, (98), 6 states have internal predecessors, (98), 5 states have call successors, (29), 8 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 5 states have call successors, (25) [2023-03-31 00:50:25,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:50:25,573 INFO L93 Difference]: Finished difference Result 1486 states and 2529 transitions. [2023-03-31 00:50:25,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-03-31 00:50:25,574 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.166666666666666) internal successors, (98), 6 states have internal predecessors, (98), 5 states have call successors, (29), 8 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 5 states have call successors, (25) Word has length 157 [2023-03-31 00:50:25,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:50:25,580 INFO L225 Difference]: With dead ends: 1486 [2023-03-31 00:50:25,580 INFO L226 Difference]: Without dead ends: 966 [2023-03-31 00:50:25,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=177, Invalid=635, Unknown=0, NotChecked=0, Total=812 [2023-03-31 00:50:25,582 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 2369 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 6945 mSolverCounterSat, 893 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2427 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 7838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 893 IncrementalHoareTripleChecker+Valid, 6945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:50:25,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2427 Valid, 964 Invalid, 7838 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [893 Valid, 6945 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-03-31 00:50:25,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2023-03-31 00:50:25,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 606. [2023-03-31 00:50:25,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 449 states have (on average 1.5968819599109132) internal successors, (717), 471 states have internal predecessors, (717), 112 states have call successors, (112), 43 states have call predecessors, (112), 44 states have return successors, (109), 103 states have call predecessors, (109), 104 states have call successors, (109) [2023-03-31 00:50:25,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 938 transitions. [2023-03-31 00:50:25,758 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 938 transitions. Word has length 157 [2023-03-31 00:50:25,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:50:25,758 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 938 transitions. [2023-03-31 00:50:25,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.166666666666666) internal successors, (98), 6 states have internal predecessors, (98), 5 states have call successors, (29), 8 states have call predecessors, (29), 3 states have return successors, (25), 3 states have call predecessors, (25), 5 states have call successors, (25) [2023-03-31 00:50:25,758 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 938 transitions. [2023-03-31 00:50:25,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-03-31 00:50:25,760 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:50:25,760 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:50:25,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-03-31 00:50:25,760 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:50:25,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:50:25,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1531912304, now seen corresponding path program 1 times [2023-03-31 00:50:25,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:50:25,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278219153] [2023-03-31 00:50:25,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:50:25,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:50:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:25,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:50:25,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:25,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:50:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:25,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:50:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:25,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:50:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:25,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:50:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:25,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:50:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:26,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:50:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:26,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:50:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:26,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:26,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:50:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:26,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:50:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:26,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:26,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-03-31 00:50:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:26,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:26,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:50:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:26,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:50:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:26,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:26,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-03-31 00:50:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:26,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:26,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:26,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:26,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 00:50:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:26,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:50:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:26,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-03-31 00:50:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:26,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:50:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:50:26,405 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-03-31 00:50:26,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:50:26,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278219153] [2023-03-31 00:50:26,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278219153] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:50:26,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:50:26,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-03-31 00:50:26,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909823951] [2023-03-31 00:50:26,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:50:26,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-03-31 00:50:26,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:50:26,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-03-31 00:50:26,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:50:26,407 INFO L87 Difference]: Start difference. First operand 606 states and 938 transitions. Second operand has 13 states, 12 states have (on average 8.25) internal successors, (99), 7 states have internal predecessors, (99), 5 states have call successors, (29), 8 states have call predecessors, (29), 4 states have return successors, (25), 3 states have call predecessors, (25), 5 states have call successors, (25)