/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/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.BOUNDED-10.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:59:54,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:59:54,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:59:54,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:59:54,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:59:54,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:59:54,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:59:54,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:59:54,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:59:54,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:59:54,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:59:54,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:59:54,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:59:54,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:59:54,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:59:54,805 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:59:54,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:59:54,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:59:54,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:59:54,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:59:54,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:59:54,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:59:54,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:59:54,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:59:54,823 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:59:54,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:59:54,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:59:54,824 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:59:54,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:59:54,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:59:54,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:59:54,826 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:59:54,827 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:59:54,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:59:54,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:59:54,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:59:54,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:59:54,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:59:54,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:59:54,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:59:54,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:59:54,832 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 [2023-04-02 04:59:54,858 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:59:54,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:59:54,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:59:54,859 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:59:54,860 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:59:54,860 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:59:54,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:59:54,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:59:54,861 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:59:54,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:59:54,862 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:59:54,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:59:54,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:59:54,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:59:54,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:59:54,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:59:54,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:59:54,863 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:59:54,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:59:54,863 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:59:54,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:59:54,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:59:54,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:59:54,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:59:54,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:59:54,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:59:54,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:59:54,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:59:54,864 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:59:54,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:59:54,864 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:59:54,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:59:54,865 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:59:54,865 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:59:54,865 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:59:54,865 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:59:55,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:59:55,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:59:55,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:59:55,124 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:59:55,125 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:59:55,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.BOUNDED-10.pals.c [2023-04-02 04:59:56,318 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:59:56,497 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:59:56,498 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.BOUNDED-10.pals.c [2023-04-02 04:59:56,510 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07f32f9e9/6e551b21387d4a45b063233d03743f4f/FLAGd3e3db9ae [2023-04-02 04:59:56,521 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07f32f9e9/6e551b21387d4a45b063233d03743f4f [2023-04-02 04:59:56,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:59:56,524 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:59:56,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:59:56,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:59:56,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:59:56,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:59:56" (1/1) ... [2023-04-02 04:59:56,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24b452dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:59:56, skipping insertion in model container [2023-04-02 04:59:56,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:59:56" (1/1) ... [2023-04-02 04:59:56,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:59:56,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:59:56,814 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/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.BOUNDED-10.pals.c[12042,12055] [2023-04-02 04:59:56,818 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:59:56,831 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:59:56,897 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/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.BOUNDED-10.pals.c[12042,12055] [2023-04-02 04:59:56,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:59:56,920 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:59:56,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:59:56 WrapperNode [2023-04-02 04:59:56,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:59:56,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:59:56,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:59:56,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:59:56,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:59:56" (1/1) ... [2023-04-02 04:59:56,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:59:56" (1/1) ... [2023-04-02 04:59:56,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:59:56" (1/1) ... [2023-04-02 04:59:56,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:59:56" (1/1) ... [2023-04-02 04:59:56,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:59:56" (1/1) ... [2023-04-02 04:59:56,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:59:56" (1/1) ... [2023-04-02 04:59:56,976 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:59:56" (1/1) ... [2023-04-02 04:59:56,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:59:56" (1/1) ... [2023-04-02 04:59:56,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:59:56,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:59:56,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:59:56,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:59:56,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:59:56" (1/1) ... [2023-04-02 04:59:56,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:59:57,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:59:57,034 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) [2023-04-02 04:59:57,041 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 [2023-04-02 04:59:57,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:59:57,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:59:57,069 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:59:57,069 INFO L138 BoogieDeclarations]: Found implementation of procedure add_history_type [2023-04-02 04:59:57,069 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_int8 [2023-04-02 04:59:57,070 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_bool [2023-04-02 04:59:57,070 INFO L138 BoogieDeclarations]: Found implementation of procedure write_history_int8 [2023-04-02 04:59:57,071 INFO L138 BoogieDeclarations]: Found implementation of procedure write_history_bool [2023-04-02 04:59:57,071 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-04-02 04:59:57,071 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-04-02 04:59:57,074 INFO L138 BoogieDeclarations]: Found implementation of procedure gate1_each_pals_period [2023-04-02 04:59:57,074 INFO L138 BoogieDeclarations]: Found implementation of procedure gate2_each_pals_period [2023-04-02 04:59:57,074 INFO L138 BoogieDeclarations]: Found implementation of procedure gate3_each_pals_period [2023-04-02 04:59:57,074 INFO L138 BoogieDeclarations]: Found implementation of procedure voter [2023-04-02 04:59:57,074 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:59:57,074 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-02 04:59:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:59:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:59:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:59:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:59:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 04:59:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 04:59:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-04-02 04:59:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-04-02 04:59:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-02 04:59:57,075 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_bool [2023-04-02 04:59:57,076 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_int8 [2023-04-02 04:59:57,076 INFO L130 BoogieDeclarations]: Found specification of procedure add_history_type [2023-04-02 04:59:57,076 INFO L130 BoogieDeclarations]: Found specification of procedure write_history_int8 [2023-04-02 04:59:57,076 INFO L130 BoogieDeclarations]: Found specification of procedure write_history_bool [2023-04-02 04:59:57,076 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-04-02 04:59:57,076 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-04-02 04:59:57,076 INFO L130 BoogieDeclarations]: Found specification of procedure gate1_each_pals_period [2023-04-02 04:59:57,076 INFO L130 BoogieDeclarations]: Found specification of procedure gate2_each_pals_period [2023-04-02 04:59:57,076 INFO L130 BoogieDeclarations]: Found specification of procedure gate3_each_pals_period [2023-04-02 04:59:57,076 INFO L130 BoogieDeclarations]: Found specification of procedure voter [2023-04-02 04:59:57,077 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:59:57,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:59:57,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:59:57,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:59:57,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:59:57,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:59:57,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:59:57,180 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:59:57,183 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:59:57,655 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:59:57,663 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:59:57,663 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-04-02 04:59:57,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:59:57 BoogieIcfgContainer [2023-04-02 04:59:57,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:59:57,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:59:57,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:59:57,671 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:59:57,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:59:56" (1/3) ... [2023-04-02 04:59:57,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664e2090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:59:57, skipping insertion in model container [2023-04-02 04:59:57,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:59:56" (2/3) ... [2023-04-02 04:59:57,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664e2090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:59:57, skipping insertion in model container [2023-04-02 04:59:57,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:59:57" (3/3) ... [2023-04-02 04:59:57,673 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.ufo.BOUNDED-10.pals.c [2023-04-02 04:59:57,692 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:59:57,692 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:59:57,747 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:59:57,753 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;@54c4e479, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:59:57,754 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:59:57,759 INFO L276 IsEmpty]: Start isEmpty. Operand has 204 states, 147 states have (on average 1.564625850340136) internal successors, (230), 151 states have internal predecessors, (230), 41 states have call successors, (41), 14 states have call predecessors, (41), 14 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-04-02 04:59:57,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-04-02 04:59:57,773 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:59:57,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:59:57,775 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:59:57,780 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:59:57,780 INFO L85 PathProgramCache]: Analyzing trace with hash -573606927, now seen corresponding path program 1 times [2023-04-02 04:59:57,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:59:57,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999637750] [2023-04-02 04:59:57,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:59:57,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:59:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:58,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:59:58,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:58,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:59:58,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:59:58,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999637750] [2023-04-02 04:59:58,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999637750] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:59:58,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:59:58,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 04:59:58,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682421708] [2023-04-02 04:59:58,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:59:58,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 04:59:58,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:59:58,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 04:59:58,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 04:59:58,268 INFO L87 Difference]: Start difference. First operand has 204 states, 147 states have (on average 1.564625850340136) internal successors, (230), 151 states have internal predecessors, (230), 41 states have call successors, (41), 14 states have call predecessors, (41), 14 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 04:59:59,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:59:59,562 INFO L93 Difference]: Finished difference Result 411 states and 673 transitions. [2023-04-02 04:59:59,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 04:59:59,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-04-02 04:59:59,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:59:59,574 INFO L225 Difference]: With dead ends: 411 [2023-04-02 04:59:59,574 INFO L226 Difference]: Without dead ends: 211 [2023-04-02 04:59:59,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:59:59,582 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 199 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 04:59:59,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 285 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 04:59:59,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-04-02 04:59:59,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 205. [2023-04-02 04:59:59,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 149 states have (on average 1.5100671140939597) internal successors, (225), 152 states have internal predecessors, (225), 41 states have call successors, (41), 15 states have call predecessors, (41), 14 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-04-02 04:59:59,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 306 transitions. [2023-04-02 04:59:59,665 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 306 transitions. Word has length 21 [2023-04-02 04:59:59,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:59:59,666 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 306 transitions. [2023-04-02 04:59:59,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 04:59:59,666 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 306 transitions. [2023-04-02 04:59:59,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-04-02 04:59:59,668 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:59:59,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:59:59,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:59:59,669 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:59:59,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:59:59,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1505615145, now seen corresponding path program 1 times [2023-04-02 04:59:59,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:59:59,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525528338] [2023-04-02 04:59:59,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:59:59,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:59:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:59,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:59:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:59,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:59:59,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:59:59,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525528338] [2023-04-02 04:59:59,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525528338] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:59:59,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:59:59,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 04:59:59,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524690189] [2023-04-02 04:59:59,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:59:59,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 04:59:59,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:59:59,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 04:59:59,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 04:59:59,805 INFO L87 Difference]: Start difference. First operand 205 states and 306 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:00:00,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:00,960 INFO L93 Difference]: Finished difference Result 421 states and 635 transitions. [2023-04-02 05:00:00,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:00,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2023-04-02 05:00:00,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:00,968 INFO L225 Difference]: With dead ends: 421 [2023-04-02 05:00:00,968 INFO L226 Difference]: Without dead ends: 225 [2023-04-02 05:00:00,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:00:00,975 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 207 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:00,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 268 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:00:00,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2023-04-02 05:00:01,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 218. [2023-04-02 05:00:01,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 160 states have (on average 1.49375) internal successors, (239), 163 states have internal predecessors, (239), 42 states have call successors, (42), 16 states have call predecessors, (42), 15 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-04-02 05:00:01,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 322 transitions. [2023-04-02 05:00:01,019 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 322 transitions. Word has length 22 [2023-04-02 05:00:01,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:01,019 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 322 transitions. [2023-04-02 05:00:01,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 05:00:01,020 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 322 transitions. [2023-04-02 05:00:01,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-04-02 05:00:01,021 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:01,021 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 05:00:01,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 05:00:01,022 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:01,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:01,022 INFO L85 PathProgramCache]: Analyzing trace with hash 120073444, now seen corresponding path program 1 times [2023-04-02 05:00:01,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:01,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004245469] [2023-04-02 05:00:01,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:01,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:01,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:01,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:01,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:01,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:00:01,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:01,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004245469] [2023-04-02 05:00:01,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004245469] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:01,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:01,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 05:00:01,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565049117] [2023-04-02 05:00:01,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:01,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:00:01,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:01,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:00:01,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 05:00:01,162 INFO L87 Difference]: Start difference. First operand 218 states and 322 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-02 05:00:01,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:01,992 INFO L93 Difference]: Finished difference Result 453 states and 681 transitions. [2023-04-02 05:00:01,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 05:00:01,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2023-04-02 05:00:01,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:01,994 INFO L225 Difference]: With dead ends: 453 [2023-04-02 05:00:01,995 INFO L226 Difference]: Without dead ends: 251 [2023-04-02 05:00:01,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:00:01,997 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 218 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:01,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 182 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:00:01,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2023-04-02 05:00:02,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 220. [2023-04-02 05:00:02,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 162 states have (on average 1.4876543209876543) internal successors, (241), 165 states have internal predecessors, (241), 42 states have call successors, (42), 16 states have call predecessors, (42), 15 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-04-02 05:00:02,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 324 transitions. [2023-04-02 05:00:02,049 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 324 transitions. Word has length 30 [2023-04-02 05:00:02,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:02,049 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 324 transitions. [2023-04-02 05:00:02,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-02 05:00:02,049 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 324 transitions. [2023-04-02 05:00:02,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-04-02 05:00:02,050 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:02,050 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 05:00:02,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 05:00:02,051 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:02,051 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:02,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1738451533, now seen corresponding path program 1 times [2023-04-02 05:00:02,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:02,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707176386] [2023-04-02 05:00:02,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:02,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:02,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:02,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:02,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:02,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:02,235 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:00:02,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:02,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707176386] [2023-04-02 05:00:02,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707176386] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:02,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:02,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 05:00:02,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47217496] [2023-04-02 05:00:02,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:02,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:00:02,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:02,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:00:02,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:00:02,237 INFO L87 Difference]: Start difference. First operand 220 states and 324 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-02 05:00:03,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:03,342 INFO L93 Difference]: Finished difference Result 430 states and 639 transitions. [2023-04-02 05:00:03,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:03,343 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2023-04-02 05:00:03,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:03,345 INFO L225 Difference]: With dead ends: 430 [2023-04-02 05:00:03,345 INFO L226 Difference]: Without dead ends: 232 [2023-04-02 05:00:03,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:00:03,347 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 179 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:03,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 354 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:00:03,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2023-04-02 05:00:03,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 224. [2023-04-02 05:00:03,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 165 states have (on average 1.4787878787878788) internal successors, (244), 168 states have internal predecessors, (244), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 42 states have call predecessors, (42), 41 states have call successors, (42) [2023-04-02 05:00:03,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 328 transitions. [2023-04-02 05:00:03,379 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 328 transitions. Word has length 38 [2023-04-02 05:00:03,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:03,380 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 328 transitions. [2023-04-02 05:00:03,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-02 05:00:03,380 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 328 transitions. [2023-04-02 05:00:03,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-04-02 05:00:03,381 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:03,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:03,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 05:00:03,382 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:03,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:03,382 INFO L85 PathProgramCache]: Analyzing trace with hash -2081461230, now seen corresponding path program 1 times [2023-04-02 05:00:03,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:03,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540772802] [2023-04-02 05:00:03,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:03,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:03,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:03,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:03,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:03,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:03,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:00:03,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:03,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540772802] [2023-04-02 05:00:03,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540772802] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:03,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:03,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 05:00:03,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618371578] [2023-04-02 05:00:03,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:03,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:00:03,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:03,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:00:03,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:00:03,570 INFO L87 Difference]: Start difference. First operand 224 states and 328 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-04-02 05:00:04,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:04,483 INFO L93 Difference]: Finished difference Result 401 states and 594 transitions. [2023-04-02 05:00:04,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:04,484 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 41 [2023-04-02 05:00:04,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:04,485 INFO L225 Difference]: With dead ends: 401 [2023-04-02 05:00:04,485 INFO L226 Difference]: Without dead ends: 234 [2023-04-02 05:00:04,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-02 05:00:04,487 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 177 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:04,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 340 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 964 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:00:04,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-04-02 05:00:04,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 220. [2023-04-02 05:00:04,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 162 states have (on average 1.4567901234567902) internal successors, (236), 165 states have internal predecessors, (236), 42 states have call successors, (42), 16 states have call predecessors, (42), 15 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-04-02 05:00:04,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 319 transitions. [2023-04-02 05:00:04,518 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 319 transitions. Word has length 41 [2023-04-02 05:00:04,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:04,519 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 319 transitions. [2023-04-02 05:00:04,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-04-02 05:00:04,519 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 319 transitions. [2023-04-02 05:00:04,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-04-02 05:00:04,520 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:04,520 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 05:00:04,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 05:00:04,520 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:04,521 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:04,521 INFO L85 PathProgramCache]: Analyzing trace with hash -2101978489, now seen corresponding path program 1 times [2023-04-02 05:00:04,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:04,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046748115] [2023-04-02 05:00:04,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:04,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:04,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:04,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:04,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:04,651 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:00:04,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:04,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046748115] [2023-04-02 05:00:04,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046748115] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:00:04,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870268409] [2023-04-02 05:00:04,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:04,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:00:04,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:00:04,657 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) [2023-04-02 05:00:04,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 05:00:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:04,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 05:00:04,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:00:04,895 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:00:04,895 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:00:04,943 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 05:00:04,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870268409] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:00:04,951 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:00:04,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 6 [2023-04-02 05:00:04,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214547450] [2023-04-02 05:00:04,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:00:04,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:00:04,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:04,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:00:04,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:00:04,953 INFO L87 Difference]: Start difference. First operand 220 states and 319 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-04-02 05:00:06,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:06,147 INFO L93 Difference]: Finished difference Result 486 states and 725 transitions. [2023-04-02 05:00:06,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:06,148 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 41 [2023-04-02 05:00:06,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:06,152 INFO L225 Difference]: With dead ends: 486 [2023-04-02 05:00:06,153 INFO L226 Difference]: Without dead ends: 283 [2023-04-02 05:00:06,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:00:06,160 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 307 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:06,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 182 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:00:06,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-04-02 05:00:06,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 273. [2023-04-02 05:00:06,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 205 states have (on average 1.4390243902439024) internal successors, (295), 208 states have internal predecessors, (295), 52 states have call successors, (52), 16 states have call predecessors, (52), 15 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-04-02 05:00:06,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 398 transitions. [2023-04-02 05:00:06,223 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 398 transitions. Word has length 41 [2023-04-02 05:00:06,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:06,223 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 398 transitions. [2023-04-02 05:00:06,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-04-02 05:00:06,224 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 398 transitions. [2023-04-02 05:00:06,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-04-02 05:00:06,225 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:06,225 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:06,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-02 05:00:06,432 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,SelfDestructingSolverStorable5 [2023-04-02 05:00:06,432 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:06,433 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:06,433 INFO L85 PathProgramCache]: Analyzing trace with hash 891902567, now seen corresponding path program 2 times [2023-04-02 05:00:06,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:06,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121348128] [2023-04-02 05:00:06,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:06,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:06,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:06,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:06,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:06,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:06,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:06,593 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 05:00:06,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:06,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121348128] [2023-04-02 05:00:06,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121348128] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:06,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:06,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:00:06,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769263823] [2023-04-02 05:00:06,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:06,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:00:06,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:06,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:00:06,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:00:06,594 INFO L87 Difference]: Start difference. First operand 273 states and 398 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-02 05:00:07,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:07,618 INFO L93 Difference]: Finished difference Result 554 states and 822 transitions. [2023-04-02 05:00:07,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:07,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2023-04-02 05:00:07,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:07,621 INFO L225 Difference]: With dead ends: 554 [2023-04-02 05:00:07,622 INFO L226 Difference]: Without dead ends: 316 [2023-04-02 05:00:07,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:00:07,624 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 197 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:07,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 268 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:00:07,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-04-02 05:00:07,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 309. [2023-04-02 05:00:07,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 237 states have (on average 1.40084388185654) internal successors, (332), 240 states have internal predecessors, (332), 55 states have call successors, (55), 17 states have call predecessors, (55), 16 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-04-02 05:00:07,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 441 transitions. [2023-04-02 05:00:07,674 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 441 transitions. Word has length 63 [2023-04-02 05:00:07,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:07,675 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 441 transitions. [2023-04-02 05:00:07,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-02 05:00:07,675 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 441 transitions. [2023-04-02 05:00:07,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-04-02 05:00:07,675 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:07,676 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:07,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 05:00:07,676 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:07,676 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:07,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1083570664, now seen corresponding path program 1 times [2023-04-02 05:00:07,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:07,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439701688] [2023-04-02 05:00:07,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:07,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:07,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:07,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:07,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:07,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:07,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:07,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:07,835 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-04-02 05:00:07,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:07,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439701688] [2023-04-02 05:00:07,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439701688] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:07,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:07,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:00:07,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070991122] [2023-04-02 05:00:07,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:07,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:00:07,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:07,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:00:07,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:00:07,838 INFO L87 Difference]: Start difference. First operand 309 states and 441 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-02 05:00:08,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:08,886 INFO L93 Difference]: Finished difference Result 591 states and 870 transitions. [2023-04-02 05:00:08,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:08,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2023-04-02 05:00:08,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:08,888 INFO L225 Difference]: With dead ends: 591 [2023-04-02 05:00:08,889 INFO L226 Difference]: Without dead ends: 322 [2023-04-02 05:00:08,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:00:08,890 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 194 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:08,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 268 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:00:08,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-04-02 05:00:08,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 316. [2023-04-02 05:00:08,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 243 states have (on average 1.3991769547325104) internal successors, (340), 246 states have internal predecessors, (340), 55 states have call successors, (55), 18 states have call predecessors, (55), 17 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-04-02 05:00:08,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 449 transitions. [2023-04-02 05:00:08,941 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 449 transitions. Word has length 63 [2023-04-02 05:00:08,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:08,941 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 449 transitions. [2023-04-02 05:00:08,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-02 05:00:08,942 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 449 transitions. [2023-04-02 05:00:08,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-04-02 05:00:08,943 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:08,944 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-04-02 05:00:08,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 05:00:08,944 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:08,944 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:08,944 INFO L85 PathProgramCache]: Analyzing trace with hash -792739588, now seen corresponding path program 1 times [2023-04-02 05:00:08,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:08,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704943307] [2023-04-02 05:00:08,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:08,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:09,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:09,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:09,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:09,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:09,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:09,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:09,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:09,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 05:00:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:09,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:09,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:09,135 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-04-02 05:00:09,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:09,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704943307] [2023-04-02 05:00:09,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704943307] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:09,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:09,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 05:00:09,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002772796] [2023-04-02 05:00:09,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:09,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:00:09,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:09,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:00:09,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:00:09,137 INFO L87 Difference]: Start difference. First operand 316 states and 449 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-04-02 05:00:10,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:10,301 INFO L93 Difference]: Finished difference Result 579 states and 837 transitions. [2023-04-02 05:00:10,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:10,302 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 81 [2023-04-02 05:00:10,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:10,304 INFO L225 Difference]: With dead ends: 579 [2023-04-02 05:00:10,304 INFO L226 Difference]: Without dead ends: 322 [2023-04-02 05:00:10,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:00:10,306 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 170 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:10,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 354 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:00:10,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-04-02 05:00:10,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 316. [2023-04-02 05:00:10,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 243 states have (on average 1.3868312757201646) internal successors, (337), 246 states have internal predecessors, (337), 55 states have call successors, (55), 18 states have call predecessors, (55), 17 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-04-02 05:00:10,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 446 transitions. [2023-04-02 05:00:10,369 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 446 transitions. Word has length 81 [2023-04-02 05:00:10,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:10,370 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 446 transitions. [2023-04-02 05:00:10,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2023-04-02 05:00:10,370 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 446 transitions. [2023-04-02 05:00:10,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-04-02 05:00:10,371 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:10,371 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-04-02 05:00:10,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 05:00:10,372 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:10,372 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:10,372 INFO L85 PathProgramCache]: Analyzing trace with hash -716978914, now seen corresponding path program 1 times [2023-04-02 05:00:10,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:10,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193786958] [2023-04-02 05:00:10,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:10,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:10,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:10,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:10,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:10,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:10,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:10,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 05:00:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:10,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:10,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:10,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:10,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:10,540 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-04-02 05:00:10,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:10,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193786958] [2023-04-02 05:00:10,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193786958] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:10,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:10,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:00:10,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289404728] [2023-04-02 05:00:10,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:10,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:00:10,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:10,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:00:10,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:00:10,543 INFO L87 Difference]: Start difference. First operand 316 states and 446 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-04-02 05:00:11,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:11,541 INFO L93 Difference]: Finished difference Result 616 states and 893 transitions. [2023-04-02 05:00:11,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:11,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 110 [2023-04-02 05:00:11,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:11,544 INFO L225 Difference]: With dead ends: 616 [2023-04-02 05:00:11,544 INFO L226 Difference]: Without dead ends: 364 [2023-04-02 05:00:11,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:00:11,546 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 198 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:11,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 268 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:00:11,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-04-02 05:00:11,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 357. [2023-04-02 05:00:11,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 280 states have (on average 1.3535714285714286) internal successors, (379), 283 states have internal predecessors, (379), 58 states have call successors, (58), 19 states have call predecessors, (58), 18 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2023-04-02 05:00:11,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 494 transitions. [2023-04-02 05:00:11,617 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 494 transitions. Word has length 110 [2023-04-02 05:00:11,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:11,618 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 494 transitions. [2023-04-02 05:00:11,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-04-02 05:00:11,618 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 494 transitions. [2023-04-02 05:00:11,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-04-02 05:00:11,619 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:11,619 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-04-02 05:00:11,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 05:00:11,619 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:11,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:11,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1476853717, now seen corresponding path program 1 times [2023-04-02 05:00:11,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:11,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479522469] [2023-04-02 05:00:11,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:11,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:11,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:11,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:11,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:11,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:11,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:11,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 05:00:11,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:11,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:11,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:11,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:11,775 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-04-02 05:00:11,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:11,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479522469] [2023-04-02 05:00:11,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479522469] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:11,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:11,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:00:11,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952380748] [2023-04-02 05:00:11,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:11,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:00:11,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:11,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:00:11,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:00:11,777 INFO L87 Difference]: Start difference. First operand 357 states and 494 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-04-02 05:00:12,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:12,584 INFO L93 Difference]: Finished difference Result 642 states and 914 transitions. [2023-04-02 05:00:12,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:00:12,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 111 [2023-04-02 05:00:12,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:12,586 INFO L225 Difference]: With dead ends: 642 [2023-04-02 05:00:12,586 INFO L226 Difference]: Without dead ends: 355 [2023-04-02 05:00:12,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-04-02 05:00:12,588 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 181 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:12,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 268 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:00:12,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-04-02 05:00:12,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 351. [2023-04-02 05:00:12,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 275 states have (on average 1.3345454545454545) internal successors, (367), 278 states have internal predecessors, (367), 57 states have call successors, (57), 19 states have call predecessors, (57), 18 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-04-02 05:00:12,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 480 transitions. [2023-04-02 05:00:12,635 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 480 transitions. Word has length 111 [2023-04-02 05:00:12,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:12,635 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 480 transitions. [2023-04-02 05:00:12,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-04-02 05:00:12,636 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 480 transitions. [2023-04-02 05:00:12,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-04-02 05:00:12,637 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:12,637 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-04-02 05:00:12,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 05:00:12,637 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:12,637 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:12,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1540931359, now seen corresponding path program 1 times [2023-04-02 05:00:12,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:12,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102745671] [2023-04-02 05:00:12,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:12,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:12,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:12,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:12,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:12,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:12,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:12,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 05:00:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:12,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:12,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:12,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:12,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:12,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 05:00:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:12,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:12,801 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-04-02 05:00:12,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:12,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102745671] [2023-04-02 05:00:12,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102745671] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:12,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:12,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 05:00:12,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447163359] [2023-04-02 05:00:12,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:12,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:00:12,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:12,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:00:12,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:00:12,803 INFO L87 Difference]: Start difference. First operand 351 states and 480 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-04-02 05:00:13,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:13,753 INFO L93 Difference]: Finished difference Result 617 states and 862 transitions. [2023-04-02 05:00:13,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:13,753 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 130 [2023-04-02 05:00:13,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:13,755 INFO L225 Difference]: With dead ends: 617 [2023-04-02 05:00:13,756 INFO L226 Difference]: Without dead ends: 357 [2023-04-02 05:00:13,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:00:13,757 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 167 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:13,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 354 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:00:13,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-04-02 05:00:13,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 351. [2023-04-02 05:00:13,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 275 states have (on average 1.3236363636363637) internal successors, (364), 278 states have internal predecessors, (364), 57 states have call successors, (57), 19 states have call predecessors, (57), 18 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-04-02 05:00:13,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 477 transitions. [2023-04-02 05:00:13,804 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 477 transitions. Word has length 130 [2023-04-02 05:00:13,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:13,805 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 477 transitions. [2023-04-02 05:00:13,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) [2023-04-02 05:00:13,805 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 477 transitions. [2023-04-02 05:00:13,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-04-02 05:00:13,806 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:13,806 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 7, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:13,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 05:00:13,807 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:13,807 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:13,807 INFO L85 PathProgramCache]: Analyzing trace with hash 145911259, now seen corresponding path program 1 times [2023-04-02 05:00:13,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:13,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792981667] [2023-04-02 05:00:13,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:13,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:13,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:13,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 05:00:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:13,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:13,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:13,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:13,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 05:00:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:13,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:13,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:13,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:13,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 05:00:13,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:13,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:13,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:13,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:13,957 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2023-04-02 05:00:13,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:13,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792981667] [2023-04-02 05:00:13,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792981667] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:13,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:13,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:00:13,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256242660] [2023-04-02 05:00:13,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:13,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:00:13,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:13,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:00:13,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:00:13,959 INFO L87 Difference]: Start difference. First operand 351 states and 477 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-04-02 05:00:14,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:14,836 INFO L93 Difference]: Finished difference Result 580 states and 823 transitions. [2023-04-02 05:00:14,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:00:14,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 163 [2023-04-02 05:00:14,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:14,842 INFO L225 Difference]: With dead ends: 580 [2023-04-02 05:00:14,842 INFO L226 Difference]: Without dead ends: 353 [2023-04-02 05:00:14,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-04-02 05:00:14,845 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 176 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:14,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 268 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:00:14,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-04-02 05:00:14,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 349. [2023-04-02 05:00:14,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 274 states have (on average 1.3211678832116789) internal successors, (362), 277 states have internal predecessors, (362), 56 states have call successors, (56), 19 states have call predecessors, (56), 18 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-04-02 05:00:14,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 473 transitions. [2023-04-02 05:00:14,910 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 473 transitions. Word has length 163 [2023-04-02 05:00:14,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:14,911 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 473 transitions. [2023-04-02 05:00:14,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-04-02 05:00:14,911 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 473 transitions. [2023-04-02 05:00:14,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-04-02 05:00:14,913 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:14,913 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:14,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 05:00:14,914 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:14,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:14,914 INFO L85 PathProgramCache]: Analyzing trace with hash -97413063, now seen corresponding path program 1 times [2023-04-02 05:00:14,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:14,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779978721] [2023-04-02 05:00:14,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:14,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:15,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:15,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:15,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:15,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:15,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:15,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:15,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:15,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:15,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:15,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:15,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:15,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:15,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:15,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:15,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:15,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:15,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:15,167 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2023-04-02 05:00:15,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:15,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779978721] [2023-04-02 05:00:15,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779978721] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:15,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:15,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:00:15,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304595887] [2023-04-02 05:00:15,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:15,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:00:15,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:15,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:00:15,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:00:15,169 INFO L87 Difference]: Start difference. First operand 349 states and 473 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 05:00:16,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:16,114 INFO L93 Difference]: Finished difference Result 520 states and 718 transitions. [2023-04-02 05:00:16,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:16,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 182 [2023-04-02 05:00:16,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:16,116 INFO L225 Difference]: With dead ends: 520 [2023-04-02 05:00:16,117 INFO L226 Difference]: Without dead ends: 336 [2023-04-02 05:00:16,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:00:16,118 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 201 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:16,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 268 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:00:16,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-04-02 05:00:16,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 332. [2023-04-02 05:00:16,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 260 states have (on average 1.3115384615384615) internal successors, (341), 263 states have internal predecessors, (341), 53 states have call successors, (53), 19 states have call predecessors, (53), 18 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-04-02 05:00:16,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 446 transitions. [2023-04-02 05:00:16,161 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 446 transitions. Word has length 182 [2023-04-02 05:00:16,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:16,161 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 446 transitions. [2023-04-02 05:00:16,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 05:00:16,161 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 446 transitions. [2023-04-02 05:00:16,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-04-02 05:00:16,163 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:16,163 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:16,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 05:00:16,163 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:16,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:16,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1581753522, now seen corresponding path program 1 times [2023-04-02 05:00:16,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:16,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554169688] [2023-04-02 05:00:16,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:16,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:16,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:16,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:16,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:16,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:16,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:16,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:16,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:16,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:16,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:16,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:16,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:16,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:16,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:16,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:16,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:16,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:16,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:16,417 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2023-04-02 05:00:16,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:16,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554169688] [2023-04-02 05:00:16,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554169688] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:16,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:16,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:00:16,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097733798] [2023-04-02 05:00:16,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:16,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:00:16,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:16,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:00:16,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:00:16,421 INFO L87 Difference]: Start difference. First operand 332 states and 446 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 05:00:17,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:17,292 INFO L93 Difference]: Finished difference Result 503 states and 691 transitions. [2023-04-02 05:00:17,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:17,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 184 [2023-04-02 05:00:17,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:17,296 INFO L225 Difference]: With dead ends: 503 [2023-04-02 05:00:17,296 INFO L226 Difference]: Without dead ends: 317 [2023-04-02 05:00:17,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:00:17,298 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 190 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:17,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 268 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:00:17,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-04-02 05:00:17,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 313. [2023-04-02 05:00:17,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 244 states have (on average 1.3032786885245902) internal successors, (318), 247 states have internal predecessors, (318), 50 states have call successors, (50), 19 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-04-02 05:00:17,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 417 transitions. [2023-04-02 05:00:17,337 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 417 transitions. Word has length 184 [2023-04-02 05:00:17,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:17,337 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 417 transitions. [2023-04-02 05:00:17,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-02 05:00:17,338 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 417 transitions. [2023-04-02 05:00:17,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-04-02 05:00:17,339 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:17,339 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 7, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:17,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 05:00:17,340 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:17,340 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:17,340 INFO L85 PathProgramCache]: Analyzing trace with hash 85985377, now seen corresponding path program 1 times [2023-04-02 05:00:17,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:17,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123521497] [2023-04-02 05:00:17,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:17,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:17,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:17,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:17,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:17,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:17,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:17,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:17,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:17,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:17,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:17,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:17,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:17,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:17,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:17,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:17,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:17,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:17,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:17,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:17,670 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2023-04-02 05:00:17,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:17,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123521497] [2023-04-02 05:00:17,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123521497] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:17,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:17,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 05:00:17,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139262379] [2023-04-02 05:00:17,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:17,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:00:17,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:17,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:00:17,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:00:17,673 INFO L87 Difference]: Start difference. First operand 313 states and 417 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 1 states have call successors, (10) [2023-04-02 05:00:18,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:18,632 INFO L93 Difference]: Finished difference Result 483 states and 661 transitions. [2023-04-02 05:00:18,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 05:00:18,632 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 1 states have call successors, (10) Word has length 185 [2023-04-02 05:00:18,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:18,634 INFO L225 Difference]: With dead ends: 483 [2023-04-02 05:00:18,634 INFO L226 Difference]: Without dead ends: 317 [2023-04-02 05:00:18,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:00:18,636 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 162 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:18,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 354 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:00:18,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-04-02 05:00:18,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 313. [2023-04-02 05:00:18,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 244 states have (on average 1.278688524590164) internal successors, (312), 247 states have internal predecessors, (312), 50 states have call successors, (50), 19 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-04-02 05:00:18,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 411 transitions. [2023-04-02 05:00:18,677 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 411 transitions. Word has length 185 [2023-04-02 05:00:18,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:18,677 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 411 transitions. [2023-04-02 05:00:18,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (10), 3 states have call predecessors, (10), 1 states have call successors, (10) [2023-04-02 05:00:18,677 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 411 transitions. [2023-04-02 05:00:18,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-04-02 05:00:18,679 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:18,679 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:18,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 05:00:18,679 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:18,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:18,680 INFO L85 PathProgramCache]: Analyzing trace with hash 954648192, now seen corresponding path program 1 times [2023-04-02 05:00:18,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:18,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352808704] [2023-04-02 05:00:18,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:18,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:18,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:18,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:18,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:18,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:18,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:18,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:18,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:18,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:18,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:18,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:18,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:18,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:18,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:18,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:18,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:18,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:18,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:18,927 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 138 proven. 11 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2023-04-02 05:00:18,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:18,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352808704] [2023-04-02 05:00:18,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352808704] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:00:18,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633653351] [2023-04-02 05:00:18,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:18,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:00:18,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:00:18,929 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) [2023-04-02 05:00:18,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 05:00:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:19,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 05:00:19,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:00:19,165 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 138 proven. 11 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2023-04-02 05:00:19,165 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:00:19,309 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2023-04-02 05:00:19,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633653351] provided 1 perfect and 1 imperfect interpolant sequences [2023-04-02 05:00:19,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-04-02 05:00:19,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 6 [2023-04-02 05:00:19,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419442291] [2023-04-02 05:00:19,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:19,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:00:19,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:19,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:00:19,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:00:19,311 INFO L87 Difference]: Start difference. First operand 313 states and 411 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2023-04-02 05:00:19,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:19,397 INFO L93 Difference]: Finished difference Result 500 states and 677 transitions. [2023-04-02 05:00:19,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 05:00:19,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) Word has length 192 [2023-04-02 05:00:19,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:19,400 INFO L225 Difference]: With dead ends: 500 [2023-04-02 05:00:19,400 INFO L226 Difference]: Without dead ends: 292 [2023-04-02 05:00:19,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-02 05:00:19,401 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 20 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:19,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 789 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 05:00:19,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-04-02 05:00:19,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2023-04-02 05:00:19,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 226 states have (on average 1.2699115044247788) internal successors, (287), 229 states have internal predecessors, (287), 47 states have call successors, (47), 19 states have call predecessors, (47), 18 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-04-02 05:00:19,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 380 transitions. [2023-04-02 05:00:19,438 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 380 transitions. Word has length 192 [2023-04-02 05:00:19,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:19,439 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 380 transitions. [2023-04-02 05:00:19,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2023-04-02 05:00:19,439 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 380 transitions. [2023-04-02 05:00:19,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-04-02 05:00:19,441 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:19,441 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:19,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 05:00:19,648 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,SelfDestructingSolverStorable16 [2023-04-02 05:00:19,649 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:19,649 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:19,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1540310675, now seen corresponding path program 1 times [2023-04-02 05:00:19,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:19,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257549551] [2023-04-02 05:00:19,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:19,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:19,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:19,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:19,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:20,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:20,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:20,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:20,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:20,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:20,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:20,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:20,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:20,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:20,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:20,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:20,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:20,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:20,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:20,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:20,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:20,075 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-04-02 05:00:20,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:20,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257549551] [2023-04-02 05:00:20,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257549551] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:20,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:20,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 05:00:20,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511014158] [2023-04-02 05:00:20,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:20,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 05:00:20,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:20,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 05:00:20,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 05:00:20,079 INFO L87 Difference]: Start difference. First operand 292 states and 380 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-04-02 05:00:21,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:21,057 INFO L93 Difference]: Finished difference Result 459 states and 623 transitions. [2023-04-02 05:00:21,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 05:00:21,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 216 [2023-04-02 05:00:21,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:21,059 INFO L225 Difference]: With dead ends: 459 [2023-04-02 05:00:21,059 INFO L226 Difference]: Without dead ends: 302 [2023-04-02 05:00:21,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:00:21,061 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 165 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:21,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 261 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-02 05:00:21,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-04-02 05:00:21,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 296. [2023-04-02 05:00:21,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 229 states have (on average 1.2663755458515285) internal successors, (290), 232 states have internal predecessors, (290), 47 states have call successors, (47), 20 states have call predecessors, (47), 19 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-04-02 05:00:21,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 383 transitions. [2023-04-02 05:00:21,121 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 383 transitions. Word has length 216 [2023-04-02 05:00:21,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:21,123 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 383 transitions. [2023-04-02 05:00:21,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-04-02 05:00:21,123 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 383 transitions. [2023-04-02 05:00:21,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-04-02 05:00:21,126 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:21,126 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:21,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-02 05:00:21,126 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:21,127 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:21,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1344929112, now seen corresponding path program 1 times [2023-04-02 05:00:21,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:21,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950301434] [2023-04-02 05:00:21,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:21,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:21,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:00:21,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:21,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,379 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-04-02 05:00:21,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:21,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950301434] [2023-04-02 05:00:21,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950301434] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:00:21,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7184045] [2023-04-02 05:00:21,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:21,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:00:21,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:00:21,381 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) [2023-04-02 05:00:21,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 05:00:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:21,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 05:00:21,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:00:21,617 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-04-02 05:00:21,617 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:00:21,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7184045] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:21,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:00:21,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2023-04-02 05:00:21,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886106556] [2023-04-02 05:00:21,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:21,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:00:21,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:21,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:00:21,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 05:00:21,620 INFO L87 Difference]: Start difference. First operand 296 states and 383 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-04-02 05:00:21,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:21,674 INFO L93 Difference]: Finished difference Result 464 states and 625 transitions. [2023-04-02 05:00:21,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:00:21,675 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 226 [2023-04-02 05:00:21,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:21,677 INFO L225 Difference]: With dead ends: 464 [2023-04-02 05:00:21,677 INFO L226 Difference]: Without dead ends: 303 [2023-04-02 05:00:21,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:00:21,678 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 7 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:21,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 835 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 05:00:21,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-04-02 05:00:21,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 301. [2023-04-02 05:00:21,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 233 states have (on average 1.261802575107296) internal successors, (294), 236 states have internal predecessors, (294), 47 states have call successors, (47), 21 states have call predecessors, (47), 20 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-04-02 05:00:21,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 387 transitions. [2023-04-02 05:00:21,715 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 387 transitions. Word has length 226 [2023-04-02 05:00:21,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:21,716 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 387 transitions. [2023-04-02 05:00:21,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-04-02 05:00:21,716 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 387 transitions. [2023-04-02 05:00:21,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2023-04-02 05:00:21,719 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:21,719 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-04-02 05:00:21,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-02 05:00:21,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:00:21,927 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:21,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:21,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1874838368, now seen corresponding path program 1 times [2023-04-02 05:00:21,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:21,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041084701] [2023-04-02 05:00:21,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:21,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:22,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:22,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:00:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:00:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,229 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2023-04-02 05:00:22,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:22,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041084701] [2023-04-02 05:00:22,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041084701] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:00:22,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424718034] [2023-04-02 05:00:22,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:22,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:00:22,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:00:22,231 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) [2023-04-02 05:00:22,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-02 05:00:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:22,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 1121 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 05:00:22,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:00:22,466 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2023-04-02 05:00:22,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:00:22,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424718034] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:22,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:00:22,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 8 [2023-04-02 05:00:22,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235540973] [2023-04-02 05:00:22,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:22,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:00:22,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:22,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:00:22,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-02 05:00:22,471 INFO L87 Difference]: Start difference. First operand 301 states and 387 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-04-02 05:00:22,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:22,592 INFO L93 Difference]: Finished difference Result 466 states and 623 transitions. [2023-04-02 05:00:22,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 05:00:22,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 237 [2023-04-02 05:00:22,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:22,595 INFO L225 Difference]: With dead ends: 466 [2023-04-02 05:00:22,595 INFO L226 Difference]: Without dead ends: 300 [2023-04-02 05:00:22,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:00:22,597 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 7 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:22,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 821 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 05:00:22,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-04-02 05:00:22,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2023-04-02 05:00:22,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 233 states have (on average 1.2489270386266094) internal successors, (291), 235 states have internal predecessors, (291), 46 states have call successors, (46), 21 states have call predecessors, (46), 20 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-04-02 05:00:22,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 382 transitions. [2023-04-02 05:00:22,642 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 382 transitions. Word has length 237 [2023-04-02 05:00:22,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:22,642 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 382 transitions. [2023-04-02 05:00:22,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-04-02 05:00:22,643 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 382 transitions. [2023-04-02 05:00:22,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2023-04-02 05:00:22,645 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:22,645 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:22,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-02 05:00:22,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:00:22,857 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:22,857 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:22,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1152934265, now seen corresponding path program 1 times [2023-04-02 05:00:22,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:22,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743247422] [2023-04-02 05:00:22,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:22,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:23,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:23,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:23,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:00:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:00:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:00:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:23,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:23,209 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2023-04-02 05:00:23,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:23,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743247422] [2023-04-02 05:00:23,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743247422] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:23,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:23,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 05:00:23,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865049287] [2023-04-02 05:00:23,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:23,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:00:23,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:23,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:00:23,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:00:23,211 INFO L87 Difference]: Start difference. First operand 300 states and 382 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (20), 8 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-04-02 05:00:24,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:24,229 INFO L93 Difference]: Finished difference Result 464 states and 613 transitions. [2023-04-02 05:00:24,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 05:00:24,230 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (20), 8 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 249 [2023-04-02 05:00:24,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:24,232 INFO L225 Difference]: With dead ends: 464 [2023-04-02 05:00:24,232 INFO L226 Difference]: Without dead ends: 299 [2023-04-02 05:00:24,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:00:24,233 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 362 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:24,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 257 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 05:00:24,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2023-04-02 05:00:24,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2023-04-02 05:00:24,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 233 states have (on average 1.2446351931330473) internal successors, (290), 234 states have internal predecessors, (290), 45 states have call successors, (45), 21 states have call predecessors, (45), 20 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-04-02 05:00:24,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 379 transitions. [2023-04-02 05:00:24,270 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 379 transitions. Word has length 249 [2023-04-02 05:00:24,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:24,271 INFO L495 AbstractCegarLoop]: Abstraction has 299 states and 379 transitions. [2023-04-02 05:00:24,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (20), 8 states have call predecessors, (20), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-04-02 05:00:24,272 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 379 transitions. [2023-04-02 05:00:24,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-04-02 05:00:24,274 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:24,274 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:24,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-04-02 05:00:24,275 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:24,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:24,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1039463575, now seen corresponding path program 1 times [2023-04-02 05:00:24,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:24,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477882475] [2023-04-02 05:00:24,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:24,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:24,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:00:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:00:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:00:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:24,568 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2023-04-02 05:00:24,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:24,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477882475] [2023-04-02 05:00:24,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477882475] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:24,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:24,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 05:00:24,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751385249] [2023-04-02 05:00:24,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:24,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:00:24,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:24,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:00:24,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-04-02 05:00:24,570 INFO L87 Difference]: Start difference. First operand 299 states and 379 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-04-02 05:00:26,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:26,391 INFO L93 Difference]: Finished difference Result 766 states and 1025 transitions. [2023-04-02 05:00:26,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 05:00:26,396 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 250 [2023-04-02 05:00:26,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:26,401 INFO L225 Difference]: With dead ends: 766 [2023-04-02 05:00:26,401 INFO L226 Difference]: Without dead ends: 602 [2023-04-02 05:00:26,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=191, Invalid=409, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:00:26,404 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 962 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:26,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [987 Valid, 453 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:00:26,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2023-04-02 05:00:26,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 482. [2023-04-02 05:00:26,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 369 states have (on average 1.3035230352303524) internal successors, (481), 371 states have internal predecessors, (481), 78 states have call successors, (78), 33 states have call predecessors, (78), 34 states have return successors, (80), 77 states have call predecessors, (80), 77 states have call successors, (80) [2023-04-02 05:00:26,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 639 transitions. [2023-04-02 05:00:26,482 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 639 transitions. Word has length 250 [2023-04-02 05:00:26,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:26,483 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 639 transitions. [2023-04-02 05:00:26,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-04-02 05:00:26,483 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 639 transitions. [2023-04-02 05:00:26,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-04-02 05:00:26,487 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:26,487 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:26,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-04-02 05:00:26,488 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:26,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:26,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1659221923, now seen corresponding path program 1 times [2023-04-02 05:00:26,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:26,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716048472] [2023-04-02 05:00:26,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:26,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:26,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:00:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:00:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:00:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-04-02 05:00:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-04-02 05:00:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 05:00:26,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 05:00:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:26,895 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 609 trivial. 0 not checked. [2023-04-02 05:00:26,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:26,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716048472] [2023-04-02 05:00:26,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716048472] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:26,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:26,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 05:00:26,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131447958] [2023-04-02 05:00:26,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:26,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 05:00:26,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:26,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 05:00:26,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:00:26,898 INFO L87 Difference]: Start difference. First operand 482 states and 639 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (24), 9 states have call predecessors, (24), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 05:00:29,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:29,104 INFO L93 Difference]: Finished difference Result 1329 states and 1819 transitions. [2023-04-02 05:00:29,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 05:00:29,109 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (24), 9 states have call predecessors, (24), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 286 [2023-04-02 05:00:29,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:29,114 INFO L225 Difference]: With dead ends: 1329 [2023-04-02 05:00:29,114 INFO L226 Difference]: Without dead ends: 830 [2023-04-02 05:00:29,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=233, Invalid=523, Unknown=0, NotChecked=0, Total=756 [2023-04-02 05:00:29,117 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 1078 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 1614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:29,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1103 Valid, 130 Invalid, 1614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:00:29,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2023-04-02 05:00:29,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 818. [2023-04-02 05:00:29,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 620 states have (on average 1.3080645161290323) internal successors, (811), 625 states have internal predecessors, (811), 134 states have call successors, (134), 59 states have call predecessors, (134), 63 states have return successors, (144), 133 states have call predecessors, (144), 133 states have call successors, (144) [2023-04-02 05:00:29,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1089 transitions. [2023-04-02 05:00:29,237 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1089 transitions. Word has length 286 [2023-04-02 05:00:29,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:29,238 INFO L495 AbstractCegarLoop]: Abstraction has 818 states and 1089 transitions. [2023-04-02 05:00:29,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (24), 9 states have call predecessors, (24), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 05:00:29,238 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1089 transitions. [2023-04-02 05:00:29,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2023-04-02 05:00:29,242 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:29,243 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:29,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-04-02 05:00:29,243 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:29,243 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:29,243 INFO L85 PathProgramCache]: Analyzing trace with hash 607264543, now seen corresponding path program 1 times [2023-04-02 05:00:29,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:29,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84881520] [2023-04-02 05:00:29,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:29,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:29,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:29,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:29,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:00:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:00:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:00:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:29,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-04-02 05:00:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-04-02 05:00:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 05:00:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 05:00:29,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,640 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 623 trivial. 0 not checked. [2023-04-02 05:00:29,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:29,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84881520] [2023-04-02 05:00:29,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84881520] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:00:29,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60540255] [2023-04-02 05:00:29,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:29,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:00:29,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:00:29,642 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) [2023-04-02 05:00:29,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-02 05:00:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:29,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 1327 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 05:00:29,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:00:29,971 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2023-04-02 05:00:29,971 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:00:29,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60540255] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:29,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:00:29,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-04-02 05:00:29,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63026168] [2023-04-02 05:00:29,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:29,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:00:29,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:29,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:00:29,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:00:29,973 INFO L87 Difference]: Start difference. First operand 818 states and 1089 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-02 05:00:30,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:30,138 INFO L93 Difference]: Finished difference Result 1525 states and 2075 transitions. [2023-04-02 05:00:30,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:00:30,140 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), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 288 [2023-04-02 05:00:30,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:30,145 INFO L225 Difference]: With dead ends: 1525 [2023-04-02 05:00:30,145 INFO L226 Difference]: Without dead ends: 854 [2023-04-02 05:00:30,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-04-02 05:00:30,148 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 15 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:30,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 746 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 05:00:30,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2023-04-02 05:00:30,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 854. [2023-04-02 05:00:30,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 650 states have (on average 1.3123076923076924) internal successors, (853), 655 states have internal predecessors, (853), 134 states have call successors, (134), 65 states have call predecessors, (134), 69 states have return successors, (144), 133 states have call predecessors, (144), 133 states have call successors, (144) [2023-04-02 05:00:30,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1131 transitions. [2023-04-02 05:00:30,268 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1131 transitions. Word has length 288 [2023-04-02 05:00:30,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:30,269 INFO L495 AbstractCegarLoop]: Abstraction has 854 states and 1131 transitions. [2023-04-02 05:00:30,269 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), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-02 05:00:30,269 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1131 transitions. [2023-04-02 05:00:30,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2023-04-02 05:00:30,271 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:30,272 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:30,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-04-02 05:00:30,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-04-02 05:00:30,481 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:30,481 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:30,481 INFO L85 PathProgramCache]: Analyzing trace with hash 627367838, now seen corresponding path program 1 times [2023-04-02 05:00:30,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:30,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675761305] [2023-04-02 05:00:30,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:30,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:30,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:00:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:00:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:00:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-04-02 05:00:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:30,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-04-02 05:00:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 05:00:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 05:00:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:30,822 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2023-04-02 05:00:30,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:30,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675761305] [2023-04-02 05:00:30,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675761305] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:30,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:30,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:00:30,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610350977] [2023-04-02 05:00:30,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:30,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:00:30,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:30,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:00:30,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:00:30,825 INFO L87 Difference]: Start difference. First operand 854 states and 1131 transitions. Second operand has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (24), 9 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 05:00:33,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:33,162 INFO L93 Difference]: Finished difference Result 2275 states and 3089 transitions. [2023-04-02 05:00:33,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 05:00:33,163 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (24), 9 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 289 [2023-04-02 05:00:33,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:33,171 INFO L225 Difference]: With dead ends: 2275 [2023-04-02 05:00:33,171 INFO L226 Difference]: Without dead ends: 1556 [2023-04-02 05:00:33,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:00:33,176 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 1203 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:33,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 129 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-02 05:00:33,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2023-04-02 05:00:33,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1503. [2023-04-02 05:00:33,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1136 states have (on average 1.3309859154929577) internal successors, (1512), 1147 states have internal predecessors, (1512), 242 states have call successors, (242), 114 states have call predecessors, (242), 124 states have return successors, (264), 241 states have call predecessors, (264), 241 states have call successors, (264) [2023-04-02 05:00:33,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 2018 transitions. [2023-04-02 05:00:33,438 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 2018 transitions. Word has length 289 [2023-04-02 05:00:33,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:33,438 INFO L495 AbstractCegarLoop]: Abstraction has 1503 states and 2018 transitions. [2023-04-02 05:00:33,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (24), 9 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 05:00:33,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 2018 transitions. [2023-04-02 05:00:33,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-04-02 05:00:33,443 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:33,443 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:33,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-04-02 05:00:33,444 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:33,444 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:33,444 INFO L85 PathProgramCache]: Analyzing trace with hash 633034812, now seen corresponding path program 1 times [2023-04-02 05:00:33,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:33,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366857928] [2023-04-02 05:00:33,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:33,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:33,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:33,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:00:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:00:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:00:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-04-02 05:00:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-04-02 05:00:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 05:00:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:33,817 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2023-04-02 05:00:33,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:33,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366857928] [2023-04-02 05:00:33,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366857928] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:33,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:33,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:00:33,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727126836] [2023-04-02 05:00:33,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:33,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:00:33,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:33,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:00:33,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:00:33,819 INFO L87 Difference]: Start difference. First operand 1503 states and 2018 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 4 states have internal predecessors, (97), 4 states have call successors, (24), 9 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 05:00:36,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:36,055 INFO L93 Difference]: Finished difference Result 4201 states and 5746 transitions. [2023-04-02 05:00:36,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 05:00:36,056 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 4 states have internal predecessors, (97), 4 states have call successors, (24), 9 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 290 [2023-04-02 05:00:36,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:36,071 INFO L225 Difference]: With dead ends: 4201 [2023-04-02 05:00:36,071 INFO L226 Difference]: Without dead ends: 2857 [2023-04-02 05:00:36,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2023-04-02 05:00:36,077 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 963 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 1604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:36,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 112 Invalid, 1604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:00:36,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2023-04-02 05:00:36,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 2115. [2023-04-02 05:00:36,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2115 states, 1594 states have (on average 1.3400250941028857) internal successors, (2136), 1611 states have internal predecessors, (2136), 346 states have call successors, (346), 158 states have call predecessors, (346), 174 states have return successors, (380), 345 states have call predecessors, (380), 345 states have call successors, (380) [2023-04-02 05:00:36,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2115 states to 2115 states and 2862 transitions. [2023-04-02 05:00:36,433 INFO L78 Accepts]: Start accepts. Automaton has 2115 states and 2862 transitions. Word has length 290 [2023-04-02 05:00:36,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:36,433 INFO L495 AbstractCegarLoop]: Abstraction has 2115 states and 2862 transitions. [2023-04-02 05:00:36,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 4 states have internal predecessors, (97), 4 states have call successors, (24), 9 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 05:00:36,434 INFO L276 IsEmpty]: Start isEmpty. Operand 2115 states and 2862 transitions. [2023-04-02 05:00:36,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2023-04-02 05:00:36,439 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:36,439 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:36,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-04-02 05:00:36,440 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:36,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:36,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1081893947, now seen corresponding path program 1 times [2023-04-02 05:00:36,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:36,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259816578] [2023-04-02 05:00:36,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:36,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:36,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:36,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:36,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:36,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:00:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:00:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:00:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 05:00:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-04-02 05:00:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 05:00:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:36,836 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2023-04-02 05:00:36,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:36,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259816578] [2023-04-02 05:00:36,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259816578] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:36,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:36,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 05:00:36,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382056269] [2023-04-02 05:00:36,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:36,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 05:00:36,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:36,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 05:00:36,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:00:36,839 INFO L87 Difference]: Start difference. First operand 2115 states and 2862 transitions. Second operand has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (24), 9 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 05:00:38,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:38,778 INFO L93 Difference]: Finished difference Result 4086 states and 5570 transitions. [2023-04-02 05:00:38,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 05:00:38,778 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (24), 9 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 293 [2023-04-02 05:00:38,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:38,788 INFO L225 Difference]: With dead ends: 4086 [2023-04-02 05:00:38,789 INFO L226 Difference]: Without dead ends: 2130 [2023-04-02 05:00:38,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2023-04-02 05:00:38,794 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 1398 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:38,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1413 Valid, 104 Invalid, 1619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-02 05:00:38,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2023-04-02 05:00:39,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 1492. [2023-04-02 05:00:39,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1129 states have (on average 1.3215234720992028) internal successors, (1492), 1140 states have internal predecessors, (1492), 240 states have call successors, (240), 112 states have call predecessors, (240), 122 states have return successors, (254), 239 states have call predecessors, (254), 239 states have call successors, (254) [2023-04-02 05:00:39,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 1986 transitions. [2023-04-02 05:00:39,064 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 1986 transitions. Word has length 293 [2023-04-02 05:00:39,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:39,065 INFO L495 AbstractCegarLoop]: Abstraction has 1492 states and 1986 transitions. [2023-04-02 05:00:39,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (24), 9 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 05:00:39,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 1986 transitions. [2023-04-02 05:00:39,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-04-02 05:00:39,068 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:39,069 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:39,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-04-02 05:00:39,069 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:39,069 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:39,069 INFO L85 PathProgramCache]: Analyzing trace with hash 238668026, now seen corresponding path program 1 times [2023-04-02 05:00:39,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:39,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055837727] [2023-04-02 05:00:39,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:39,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:39,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:39,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:39,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:00:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:00:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 05:00:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-04-02 05:00:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2023-04-02 05:00:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 05:00:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:39,469 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2023-04-02 05:00:39,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:39,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055837727] [2023-04-02 05:00:39,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055837727] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:39,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:39,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 05:00:39,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611117933] [2023-04-02 05:00:39,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:39,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 05:00:39,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:39,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 05:00:39,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-02 05:00:39,471 INFO L87 Difference]: Start difference. First operand 1492 states and 1986 transitions. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (24), 9 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-02 05:00:40,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:40,550 INFO L93 Difference]: Finished difference Result 2570 states and 3441 transitions. [2023-04-02 05:00:40,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 05:00:40,550 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (24), 9 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 290 [2023-04-02 05:00:40,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:40,557 INFO L225 Difference]: With dead ends: 2570 [2023-04-02 05:00:40,557 INFO L226 Difference]: Without dead ends: 1183 [2023-04-02 05:00:40,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:00:40,561 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 575 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:40,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 84 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 05:00:40,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2023-04-02 05:00:40,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2023-04-02 05:00:40,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 897 states have (on average 1.3110367892976589) internal successors, (1176), 905 states have internal predecessors, (1176), 188 states have call successors, (188), 90 states have call predecessors, (188), 97 states have return successors, (198), 187 states have call predecessors, (198), 187 states have call successors, (198) [2023-04-02 05:00:40,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1562 transitions. [2023-04-02 05:00:40,780 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1562 transitions. Word has length 290 [2023-04-02 05:00:40,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:40,780 INFO L495 AbstractCegarLoop]: Abstraction has 1183 states and 1562 transitions. [2023-04-02 05:00:40,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (24), 9 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-02 05:00:40,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1562 transitions. [2023-04-02 05:00:40,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-04-02 05:00:40,784 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:40,784 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:40,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-04-02 05:00:40,784 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:40,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:40,785 INFO L85 PathProgramCache]: Analyzing trace with hash 2010782274, now seen corresponding path program 1 times [2023-04-02 05:00:40,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:40,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936923585] [2023-04-02 05:00:40,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:40,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:00:41,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:00:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:00:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 05:00:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-04-02 05:00:41,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:00:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 05:00:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:41,473 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2023-04-02 05:00:41,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:41,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936923585] [2023-04-02 05:00:41,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936923585] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:41,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:41,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 05:00:41,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266079066] [2023-04-02 05:00:41,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:41,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 05:00:41,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:41,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 05:00:41,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 05:00:41,475 INFO L87 Difference]: Start difference. First operand 1183 states and 1562 transitions. Second operand has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (24), 9 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2023-04-02 05:00:43,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:43,002 INFO L93 Difference]: Finished difference Result 1240 states and 1663 transitions. [2023-04-02 05:00:43,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 05:00:43,002 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (24), 9 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 291 [2023-04-02 05:00:43,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:43,010 INFO L225 Difference]: With dead ends: 1240 [2023-04-02 05:00:43,010 INFO L226 Difference]: Without dead ends: 1238 [2023-04-02 05:00:43,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2023-04-02 05:00:43,011 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 592 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 1770 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:43,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 188 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1770 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-02 05:00:43,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2023-04-02 05:00:43,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1207. [2023-04-02 05:00:43,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 910 states have (on average 1.3065934065934066) internal successors, (1189), 927 states have internal predecessors, (1189), 189 states have call successors, (189), 91 states have call predecessors, (189), 107 states have return successors, (211), 188 states have call predecessors, (211), 188 states have call successors, (211) [2023-04-02 05:00:43,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1589 transitions. [2023-04-02 05:00:43,219 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1589 transitions. Word has length 291 [2023-04-02 05:00:43,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:43,219 INFO L495 AbstractCegarLoop]: Abstraction has 1207 states and 1589 transitions. [2023-04-02 05:00:43,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.538461538461538) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (24), 9 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2023-04-02 05:00:43,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1589 transitions. [2023-04-02 05:00:43,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2023-04-02 05:00:43,223 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:43,223 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-04-02 05:00:43,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-04-02 05:00:43,224 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:43,224 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:43,224 INFO L85 PathProgramCache]: Analyzing trace with hash 96736865, now seen corresponding path program 1 times [2023-04-02 05:00:43,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:43,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638720864] [2023-04-02 05:00:43,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:43,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:43,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:00:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:00:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:00:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 05:00:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-04-02 05:00:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:00:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 05:00:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 05:00:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:43,980 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 142 proven. 27 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2023-04-02 05:00:43,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:43,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638720864] [2023-04-02 05:00:43,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638720864] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:00:43,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789861626] [2023-04-02 05:00:43,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:43,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:00:43,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:00:43,982 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) [2023-04-02 05:00:43,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-04-02 05:00:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:44,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 1361 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-02 05:00:44,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:00:44,548 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 251 proven. 33 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2023-04-02 05:00:44,549 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:00:45,236 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 146 proven. 23 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2023-04-02 05:00:45,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789861626] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:00:45,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:00:45,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 13, 14] total 36 [2023-04-02 05:00:45,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465033568] [2023-04-02 05:00:45,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:00:45,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-04-02 05:00:45,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:45,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-04-02 05:00:45,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1137, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 05:00:45,239 INFO L87 Difference]: Start difference. First operand 1207 states and 1589 transitions. Second operand has 36 states, 36 states have (on average 5.555555555555555) internal successors, (200), 23 states have internal predecessors, (200), 9 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (43), 14 states have call predecessors, (43), 9 states have call successors, (43) [2023-04-02 05:00:53,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:53,025 INFO L93 Difference]: Finished difference Result 4849 states and 7104 transitions. [2023-04-02 05:00:53,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-04-02 05:00:53,026 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 5.555555555555555) internal successors, (200), 23 states have internal predecessors, (200), 9 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (43), 14 states have call predecessors, (43), 9 states have call successors, (43) Word has length 299 [2023-04-02 05:00:53,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:53,046 INFO L225 Difference]: With dead ends: 4849 [2023-04-02 05:00:53,046 INFO L226 Difference]: Without dead ends: 3801 [2023-04-02 05:00:53,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 649 SyntacticMatches, 4 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1753 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1071, Invalid=5735, Unknown=0, NotChecked=0, Total=6806 [2023-04-02 05:00:53,052 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 2667 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 8427 mSolverCounterSat, 1161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2715 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 9588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1161 IncrementalHoareTripleChecker+Valid, 8427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:53,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2715 Valid, 390 Invalid, 9588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1161 Valid, 8427 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-04-02 05:00:53,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3801 states. [2023-04-02 05:00:53,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3801 to 2946. [2023-04-02 05:00:53,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2200 states have (on average 1.3213636363636363) internal successors, (2907), 2262 states have internal predecessors, (2907), 467 states have call successors, (467), 206 states have call predecessors, (467), 278 states have return successors, (583), 477 states have call predecessors, (583), 466 states have call successors, (583) [2023-04-02 05:00:53,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 3957 transitions. [2023-04-02 05:00:53,533 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 3957 transitions. Word has length 299 [2023-04-02 05:00:53,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:53,534 INFO L495 AbstractCegarLoop]: Abstraction has 2946 states and 3957 transitions. [2023-04-02 05:00:53,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 5.555555555555555) internal successors, (200), 23 states have internal predecessors, (200), 9 states have call successors, (49), 13 states have call predecessors, (49), 13 states have return successors, (43), 14 states have call predecessors, (43), 9 states have call successors, (43) [2023-04-02 05:00:53,534 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 3957 transitions. [2023-04-02 05:00:53,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2023-04-02 05:00:53,542 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:53,542 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-04-02 05:00:53,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-04-02 05:00:53,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:00:53,751 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:53,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:53,751 INFO L85 PathProgramCache]: Analyzing trace with hash 789838562, now seen corresponding path program 1 times [2023-04-02 05:00:53,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:53,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484409762] [2023-04-02 05:00:53,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:53,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:53,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:00:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:53,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:54,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:00:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:54,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:54,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:00:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:54,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:54,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 05:00:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:54,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:54,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-04-02 05:00:54,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:54,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:54,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:00:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:54,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 05:00:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:54,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 05:00:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:54,144 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2023-04-02 05:00:54,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:54,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484409762] [2023-04-02 05:00:54,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484409762] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:00:54,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835611314] [2023-04-02 05:00:54,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:54,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:00:54,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:00:54,146 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) [2023-04-02 05:00:54,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-04-02 05:00:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:54,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 1360 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 05:00:54,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:00:54,436 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2023-04-02 05:00:54,437 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:00:54,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835611314] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:54,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:00:54,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 11 [2023-04-02 05:00:54,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010767037] [2023-04-02 05:00:54,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:54,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:00:54,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:54,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:00:54,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:00:54,438 INFO L87 Difference]: Start difference. First operand 2946 states and 3957 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-02 05:00:54,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:54,906 INFO L93 Difference]: Finished difference Result 5285 states and 7231 transitions. [2023-04-02 05:00:54,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:00:54,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 299 [2023-04-02 05:00:54,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:54,917 INFO L225 Difference]: With dead ends: 5285 [2023-04-02 05:00:54,917 INFO L226 Difference]: Without dead ends: 2433 [2023-04-02 05:00:54,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:00:54,925 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 11 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:54,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 743 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 05:00:54,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2433 states. [2023-04-02 05:00:55,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2433 to 2433. [2023-04-02 05:00:55,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2433 states, 1858 states have (on average 1.2728740581270184) internal successors, (2365), 1902 states have internal predecessors, (2365), 323 states have call successors, (323), 206 states have call predecessors, (323), 251 states have return successors, (409), 324 states have call predecessors, (409), 322 states have call successors, (409) [2023-04-02 05:00:55,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2433 states to 2433 states and 3097 transitions. [2023-04-02 05:00:55,360 INFO L78 Accepts]: Start accepts. Automaton has 2433 states and 3097 transitions. Word has length 299 [2023-04-02 05:00:55,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:55,361 INFO L495 AbstractCegarLoop]: Abstraction has 2433 states and 3097 transitions. [2023-04-02 05:00:55,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-02 05:00:55,361 INFO L276 IsEmpty]: Start isEmpty. Operand 2433 states and 3097 transitions. [2023-04-02 05:00:55,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2023-04-02 05:00:55,368 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:55,368 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 9, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-04-02 05:00:55,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-04-02 05:00:55,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:00:55,576 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:55,577 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:55,577 INFO L85 PathProgramCache]: Analyzing trace with hash -759505533, now seen corresponding path program 1 times [2023-04-02 05:00:55,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:55,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440601368] [2023-04-02 05:00:55,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:55,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:55,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:55,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 05:00:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 05:00:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-04-02 05:00:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-04-02 05:00:55,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-04-02 05:00:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-04-02 05:00:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-04-02 05:00:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:55,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:00:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 05:00:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 05:00:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,004 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 121 proven. 19 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2023-04-02 05:00:56,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:56,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440601368] [2023-04-02 05:00:56,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440601368] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:00:56,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112834082] [2023-04-02 05:00:56,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:56,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:00:56,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:00:56,006 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) [2023-04-02 05:00:56,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-04-02 05:00:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:56,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 1361 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 05:00:56,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:00:56,259 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 222 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2023-04-02 05:00:56,259 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:00:56,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112834082] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:56,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:00:56,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 11 [2023-04-02 05:00:56,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216557379] [2023-04-02 05:00:56,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:56,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:00:56,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:56,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:00:56,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:00:56,261 INFO L87 Difference]: Start difference. First operand 2433 states and 3097 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-02 05:00:56,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:00:56,690 INFO L93 Difference]: Finished difference Result 4760 states and 6264 transitions. [2023-04-02 05:00:56,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:00:56,690 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 302 [2023-04-02 05:00:56,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:00:56,716 INFO L225 Difference]: With dead ends: 4760 [2023-04-02 05:00:56,716 INFO L226 Difference]: Without dead ends: 2370 [2023-04-02 05:00:56,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:00:56,724 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 8 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:00:56,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 746 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 05:00:56,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2370 states. [2023-04-02 05:00:57,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2370 to 2370. [2023-04-02 05:00:57,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2370 states, 1800 states have (on average 1.255) internal successors, (2259), 1844 states have internal predecessors, (2259), 321 states have call successors, (321), 206 states have call predecessors, (321), 248 states have return successors, (402), 319 states have call predecessors, (402), 320 states have call successors, (402) [2023-04-02 05:00:57,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2370 states to 2370 states and 2982 transitions. [2023-04-02 05:00:57,162 INFO L78 Accepts]: Start accepts. Automaton has 2370 states and 2982 transitions. Word has length 302 [2023-04-02 05:00:57,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:00:57,162 INFO L495 AbstractCegarLoop]: Abstraction has 2370 states and 2982 transitions. [2023-04-02 05:00:57,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-02 05:00:57,162 INFO L276 IsEmpty]: Start isEmpty. Operand 2370 states and 2982 transitions. [2023-04-02 05:00:57,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2023-04-02 05:00:57,166 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:00:57,166 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 8, 8, 8, 7, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:00:57,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-04-02 05:00:57,377 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,SelfDestructingSolverStorable31 [2023-04-02 05:00:57,377 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:00:57,377 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:00:57,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1787957989, now seen corresponding path program 1 times [2023-04-02 05:00:57,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:00:57,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759109436] [2023-04-02 05:00:57,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:00:57,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:00:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:00:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:00:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:00:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:00:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:00:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:00:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:00:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:00:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:00:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:00:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:00:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:00:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:00:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:00:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:00:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:00:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:00:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:00:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 05:00:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-04-02 05:00:57,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:00:57,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:00:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 05:00:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 05:00:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 05:00:57,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 05:00:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:00:57,852 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2023-04-02 05:00:57,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:00:57,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759109436] [2023-04-02 05:00:57,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759109436] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:00:57,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:00:57,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:00:57,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811436368] [2023-04-02 05:00:57,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:00:57,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:00:57,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:00:57,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:00:57,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:00:57,854 INFO L87 Difference]: Start difference. First operand 2370 states and 2982 transitions. Second operand has 17 states, 16 states have (on average 6.5625) internal successors, (105), 9 states have internal predecessors, (105), 4 states have call successors, (27), 9 states have call predecessors, (27), 5 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2023-04-02 05:01:01,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:01,253 INFO L93 Difference]: Finished difference Result 5064 states and 6450 transitions. [2023-04-02 05:01:01,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-04-02 05:01:01,253 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.5625) internal successors, (105), 9 states have internal predecessors, (105), 4 states have call successors, (27), 9 states have call predecessors, (27), 5 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) Word has length 314 [2023-04-02 05:01:01,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:01,265 INFO L225 Difference]: With dead ends: 5064 [2023-04-02 05:01:01,265 INFO L226 Difference]: Without dead ends: 3593 [2023-04-02 05:01:01,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=365, Invalid=1441, Unknown=0, NotChecked=0, Total=1806 [2023-04-02 05:01:01,269 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 883 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 4080 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 4306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 4080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:01,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 264 Invalid, 4306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 4080 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-04-02 05:01:01,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3593 states. [2023-04-02 05:01:01,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3593 to 3285. [2023-04-02 05:01:01,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3285 states, 2490 states have (on average 1.2542168674698795) internal successors, (3123), 2558 states have internal predecessors, (3123), 453 states have call successors, (453), 275 states have call predecessors, (453), 341 states have return successors, (594), 451 states have call predecessors, (594), 452 states have call successors, (594) [2023-04-02 05:01:01,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3285 states to 3285 states and 4170 transitions. [2023-04-02 05:01:01,732 INFO L78 Accepts]: Start accepts. Automaton has 3285 states and 4170 transitions. Word has length 314 [2023-04-02 05:01:01,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:01,732 INFO L495 AbstractCegarLoop]: Abstraction has 3285 states and 4170 transitions. [2023-04-02 05:01:01,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.5625) internal successors, (105), 9 states have internal predecessors, (105), 4 states have call successors, (27), 9 states have call predecessors, (27), 5 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2023-04-02 05:01:01,732 INFO L276 IsEmpty]: Start isEmpty. Operand 3285 states and 4170 transitions. [2023-04-02 05:01:01,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2023-04-02 05:01:01,737 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:01,737 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 8, 8, 8, 7, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:01:01,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-04-02 05:01:01,737 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:01,738 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:01,738 INFO L85 PathProgramCache]: Analyzing trace with hash 120499801, now seen corresponding path program 1 times [2023-04-02 05:01:01,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:01,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177725707] [2023-04-02 05:01:01,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:01,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:01,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:01,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:01,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:01,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:01:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:01:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:01:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 05:01:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-04-02 05:01:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:01:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 05:01:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 05:01:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 05:01:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 05:01:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,192 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2023-04-02 05:01:02,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:02,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177725707] [2023-04-02 05:01:02,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177725707] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:01:02,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367423022] [2023-04-02 05:01:02,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:02,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:02,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:01:02,194 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) [2023-04-02 05:01:02,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-04-02 05:01:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:02,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 1407 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-02 05:01:02,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:01:02,621 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2023-04-02 05:01:02,621 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:01:02,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367423022] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:02,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:01:02,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 21 [2023-04-02 05:01:02,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491222012] [2023-04-02 05:01:02,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:02,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:01:02,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:02,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:01:02,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2023-04-02 05:01:02,623 INFO L87 Difference]: Start difference. First operand 3285 states and 4170 transitions. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 5 states have internal predecessors, (110), 4 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-04-02 05:01:03,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:03,559 INFO L93 Difference]: Finished difference Result 5707 states and 7236 transitions. [2023-04-02 05:01:03,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 05:01:03,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 5 states have internal predecessors, (110), 4 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 314 [2023-04-02 05:01:03,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:03,570 INFO L225 Difference]: With dead ends: 5707 [2023-04-02 05:01:03,571 INFO L226 Difference]: Without dead ends: 3144 [2023-04-02 05:01:03,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:01:03,576 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 349 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:03,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 71 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 05:01:03,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2023-04-02 05:01:04,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 3099. [2023-04-02 05:01:04,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3099 states, 2352 states have (on average 1.2512755102040816) internal successors, (2943), 2411 states have internal predecessors, (2943), 426 states have call successors, (426), 263 states have call predecessors, (426), 320 states have return successors, (537), 424 states have call predecessors, (537), 425 states have call successors, (537) [2023-04-02 05:01:04,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3099 states to 3099 states and 3906 transitions. [2023-04-02 05:01:04,068 INFO L78 Accepts]: Start accepts. Automaton has 3099 states and 3906 transitions. Word has length 314 [2023-04-02 05:01:04,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:04,069 INFO L495 AbstractCegarLoop]: Abstraction has 3099 states and 3906 transitions. [2023-04-02 05:01:04,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 5 states have internal predecessors, (110), 4 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-04-02 05:01:04,069 INFO L276 IsEmpty]: Start isEmpty. Operand 3099 states and 3906 transitions. [2023-04-02 05:01:04,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-04-02 05:01:04,073 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:04,073 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 8, 8, 8, 7, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:01:04,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-04-02 05:01:04,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:04,299 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:04,299 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:04,300 INFO L85 PathProgramCache]: Analyzing trace with hash -66297120, now seen corresponding path program 1 times [2023-04-02 05:01:04,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:04,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735778006] [2023-04-02 05:01:04,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:04,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:04,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:04,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:04,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:01:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:01:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:01:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 05:01:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 05:01:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:01:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 05:01:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 05:01:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 05:01:04,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 05:01:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:04,769 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2023-04-02 05:01:04,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:04,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735778006] [2023-04-02 05:01:04,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735778006] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:01:04,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963430049] [2023-04-02 05:01:04,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:04,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:04,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:01:04,771 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) [2023-04-02 05:01:04,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-04-02 05:01:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:05,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 1409 conjuncts, 31 conjunts are in the unsatisfiable core [2023-04-02 05:01:05,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:01:05,282 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2023-04-02 05:01:05,282 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:01:05,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963430049] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:05,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:01:05,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17] total 26 [2023-04-02 05:01:05,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009076141] [2023-04-02 05:01:05,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:05,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:01:05,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:05,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:01:05,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2023-04-02 05:01:05,284 INFO L87 Difference]: Start difference. First operand 3099 states and 3906 transitions. Second operand has 13 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 5 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2023-04-02 05:01:07,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:07,228 INFO L93 Difference]: Finished difference Result 5435 states and 6873 transitions. [2023-04-02 05:01:07,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 05:01:07,228 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 5 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) Word has length 315 [2023-04-02 05:01:07,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:07,238 INFO L225 Difference]: With dead ends: 5435 [2023-04-02 05:01:07,238 INFO L226 Difference]: Without dead ends: 3274 [2023-04-02 05:01:07,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=1267, Unknown=0, NotChecked=0, Total=1406 [2023-04-02 05:01:07,243 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 459 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 4005 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 4092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 4005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:07,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 233 Invalid, 4092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 4005 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 05:01:07,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3274 states. [2023-04-02 05:01:07,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3274 to 3120. [2023-04-02 05:01:07,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 2367 states have (on average 1.249683143219265) internal successors, (2958), 2426 states have internal predecessors, (2958), 432 states have call successors, (432), 266 states have call predecessors, (432), 320 states have return successors, (534), 427 states have call predecessors, (534), 431 states have call successors, (534) [2023-04-02 05:01:07,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 3924 transitions. [2023-04-02 05:01:07,677 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 3924 transitions. Word has length 315 [2023-04-02 05:01:07,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:07,678 INFO L495 AbstractCegarLoop]: Abstraction has 3120 states and 3924 transitions. [2023-04-02 05:01:07,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 5 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2023-04-02 05:01:07,678 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 3924 transitions. [2023-04-02 05:01:07,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2023-04-02 05:01:07,682 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:07,682 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 9, 8, 8, 8, 7, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:01:07,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-04-02 05:01:07,894 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,SelfDestructingSolverStorable34 [2023-04-02 05:01:07,895 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:07,895 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:07,895 INFO L85 PathProgramCache]: Analyzing trace with hash -622801776, now seen corresponding path program 1 times [2023-04-02 05:01:07,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:07,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331357413] [2023-04-02 05:01:07,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:07,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:01:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:01:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:01:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 05:01:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-04-02 05:01:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:01:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 05:01:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 05:01:08,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 05:01:08,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 05:01:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,324 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2023-04-02 05:01:08,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:08,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331357413] [2023-04-02 05:01:08,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331357413] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:01:08,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945783779] [2023-04-02 05:01:08,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:08,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:08,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:01:08,326 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) [2023-04-02 05:01:08,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-04-02 05:01:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:08,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 1412 conjuncts, 15 conjunts are in the unsatisfiable core [2023-04-02 05:01:08,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:01:08,695 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2023-04-02 05:01:08,695 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:01:08,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945783779] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:08,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:01:08,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [17] total 20 [2023-04-02 05:01:08,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931046626] [2023-04-02 05:01:08,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:08,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 05:01:08,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:08,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 05:01:08,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2023-04-02 05:01:08,697 INFO L87 Difference]: Start difference. First operand 3120 states and 3924 transitions. Second operand has 9 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-04-02 05:01:09,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:09,457 INFO L93 Difference]: Finished difference Result 5333 states and 6747 transitions. [2023-04-02 05:01:09,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 05:01:09,458 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 316 [2023-04-02 05:01:09,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:09,468 INFO L225 Difference]: With dead ends: 5333 [2023-04-02 05:01:09,469 INFO L226 Difference]: Without dead ends: 3193 [2023-04-02 05:01:09,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2023-04-02 05:01:09,474 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 147 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 2972 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:09,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 2972 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 05:01:09,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3193 states. [2023-04-02 05:01:10,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3193 to 2844. [2023-04-02 05:01:10,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2844 states, 2166 states have (on average 1.242382271468144) internal successors, (2691), 2216 states have internal predecessors, (2691), 384 states have call successors, (384), 254 states have call predecessors, (384), 293 states have return successors, (438), 373 states have call predecessors, (438), 383 states have call successors, (438) [2023-04-02 05:01:10,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2844 states to 2844 states and 3513 transitions. [2023-04-02 05:01:10,020 INFO L78 Accepts]: Start accepts. Automaton has 2844 states and 3513 transitions. Word has length 316 [2023-04-02 05:01:10,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:10,021 INFO L495 AbstractCegarLoop]: Abstraction has 2844 states and 3513 transitions. [2023-04-02 05:01:10,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-04-02 05:01:10,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2844 states and 3513 transitions. [2023-04-02 05:01:10,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2023-04-02 05:01:10,025 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:10,026 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:01:10,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-04-02 05:01:10,233 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,SelfDestructingSolverStorable35 [2023-04-02 05:01:10,234 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:10,234 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:10,234 INFO L85 PathProgramCache]: Analyzing trace with hash -279722889, now seen corresponding path program 1 times [2023-04-02 05:01:10,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:10,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857754614] [2023-04-02 05:01:10,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:10,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:10,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:10,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:01:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:01:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:01:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:10,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 05:01:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-04-02 05:01:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:01:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 05:01:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 05:01:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 05:01:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 05:01:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:10,617 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2023-04-02 05:01:10,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:10,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857754614] [2023-04-02 05:01:10,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857754614] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:10,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:01:10,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 05:01:10,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553042517] [2023-04-02 05:01:10,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:10,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:01:10,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:10,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:01:10,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-04-02 05:01:10,620 INFO L87 Difference]: Start difference. First operand 2844 states and 3513 transitions. Second operand has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 6 states have internal predecessors, (107), 5 states have call successors, (27), 9 states have call predecessors, (27), 2 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) [2023-04-02 05:01:12,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:12,628 INFO L93 Difference]: Finished difference Result 6934 states and 9312 transitions. [2023-04-02 05:01:12,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 05:01:12,629 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 6 states have internal predecessors, (107), 5 states have call successors, (27), 9 states have call predecessors, (27), 2 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) Word has length 320 [2023-04-02 05:01:12,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:12,658 INFO L225 Difference]: With dead ends: 6934 [2023-04-02 05:01:12,658 INFO L226 Difference]: Without dead ends: 4929 [2023-04-02 05:01:12,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2023-04-02 05:01:12,665 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 1466 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:12,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 66 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 05:01:12,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4929 states. [2023-04-02 05:01:13,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4929 to 3249. [2023-04-02 05:01:13,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3249 states, 2469 states have (on average 1.2648845686512757) internal successors, (3123), 2528 states have internal predecessors, (3123), 477 states have call successors, (477), 254 states have call predecessors, (477), 302 states have return successors, (543), 466 states have call predecessors, (543), 476 states have call successors, (543) [2023-04-02 05:01:13,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3249 states to 3249 states and 4143 transitions. [2023-04-02 05:01:13,198 INFO L78 Accepts]: Start accepts. Automaton has 3249 states and 4143 transitions. Word has length 320 [2023-04-02 05:01:13,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:13,198 INFO L495 AbstractCegarLoop]: Abstraction has 3249 states and 4143 transitions. [2023-04-02 05:01:13,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 6 states have internal predecessors, (107), 5 states have call successors, (27), 9 states have call predecessors, (27), 2 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) [2023-04-02 05:01:13,198 INFO L276 IsEmpty]: Start isEmpty. Operand 3249 states and 4143 transitions. [2023-04-02 05:01:13,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2023-04-02 05:01:13,203 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:13,203 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:01:13,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-04-02 05:01:13,204 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:13,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:13,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1628072691, now seen corresponding path program 1 times [2023-04-02 05:01:13,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:13,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563370485] [2023-04-02 05:01:13,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:13,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:13,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:01:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:01:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:01:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 05:01:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-04-02 05:01:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:01:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 05:01:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 05:01:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 05:01:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 05:01:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,677 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 754 trivial. 0 not checked. [2023-04-02 05:01:13,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:13,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563370485] [2023-04-02 05:01:13,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563370485] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:01:13,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943121563] [2023-04-02 05:01:13,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:13,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:13,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:01:13,679 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) [2023-04-02 05:01:13,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-04-02 05:01:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:13,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 31 conjunts are in the unsatisfiable core [2023-04-02 05:01:13,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:01:14,182 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2023-04-02 05:01:14,182 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:01:14,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943121563] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:14,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:01:14,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17] total 28 [2023-04-02 05:01:14,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634793651] [2023-04-02 05:01:14,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:14,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:01:14,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:14,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:01:14,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2023-04-02 05:01:14,184 INFO L87 Difference]: Start difference. First operand 3249 states and 4143 transitions. Second operand has 13 states, 12 states have (on average 10.333333333333334) internal successors, (124), 11 states have internal predecessors, (124), 5 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2023-04-02 05:01:16,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:16,160 INFO L93 Difference]: Finished difference Result 5768 states and 7395 transitions. [2023-04-02 05:01:16,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 05:01:16,160 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.333333333333334) internal successors, (124), 11 states have internal predecessors, (124), 5 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) Word has length 320 [2023-04-02 05:01:16,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:16,170 INFO L225 Difference]: With dead ends: 5768 [2023-04-02 05:01:16,170 INFO L226 Difference]: Without dead ends: 3523 [2023-04-02 05:01:16,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=1420, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:01:16,176 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 572 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 3775 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 3905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 3775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:16,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 223 Invalid, 3905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 3775 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-02 05:01:16,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3523 states. [2023-04-02 05:01:16,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3523 to 3252. [2023-04-02 05:01:16,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3252 states, 2466 states have (on average 1.2627737226277371) internal successors, (3114), 2528 states have internal predecessors, (3114), 483 states have call successors, (483), 254 states have call predecessors, (483), 302 states have return successors, (546), 469 states have call predecessors, (546), 482 states have call successors, (546) [2023-04-02 05:01:16,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3252 states to 3252 states and 4143 transitions. [2023-04-02 05:01:16,738 INFO L78 Accepts]: Start accepts. Automaton has 3252 states and 4143 transitions. Word has length 320 [2023-04-02 05:01:16,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:16,738 INFO L495 AbstractCegarLoop]: Abstraction has 3252 states and 4143 transitions. [2023-04-02 05:01:16,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.333333333333334) internal successors, (124), 11 states have internal predecessors, (124), 5 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2023-04-02 05:01:16,739 INFO L276 IsEmpty]: Start isEmpty. Operand 3252 states and 4143 transitions. [2023-04-02 05:01:16,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2023-04-02 05:01:16,743 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:16,743 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:01:16,751 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-04-02 05:01:16,951 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,SelfDestructingSolverStorable37 [2023-04-02 05:01:16,952 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:16,952 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:16,952 INFO L85 PathProgramCache]: Analyzing trace with hash -610710285, now seen corresponding path program 1 times [2023-04-02 05:01:16,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:16,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320751532] [2023-04-02 05:01:16,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:16,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:01:17,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:01:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:01:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 05:01:17,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-04-02 05:01:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:01:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 05:01:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 05:01:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 05:01:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 05:01:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,416 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 754 trivial. 0 not checked. [2023-04-02 05:01:17,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:17,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320751532] [2023-04-02 05:01:17,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320751532] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:01:17,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795372762] [2023-04-02 05:01:17,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:17,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:17,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:01:17,417 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:01:17,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-04-02 05:01:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:17,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 31 conjunts are in the unsatisfiable core [2023-04-02 05:01:17,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:01:17,902 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2023-04-02 05:01:17,902 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:01:17,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795372762] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:17,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:01:17,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [17] total 28 [2023-04-02 05:01:17,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29433597] [2023-04-02 05:01:17,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:17,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 05:01:17,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:17,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 05:01:17,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2023-04-02 05:01:17,904 INFO L87 Difference]: Start difference. First operand 3252 states and 4143 transitions. Second operand has 13 states, 12 states have (on average 10.166666666666666) internal successors, (122), 11 states have internal predecessors, (122), 5 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2023-04-02 05:01:19,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:19,963 INFO L93 Difference]: Finished difference Result 5651 states and 7227 transitions. [2023-04-02 05:01:19,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 05:01:19,964 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.166666666666666) internal successors, (122), 11 states have internal predecessors, (122), 5 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) Word has length 320 [2023-04-02 05:01:19,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:19,974 INFO L225 Difference]: With dead ends: 5651 [2023-04-02 05:01:19,975 INFO L226 Difference]: Without dead ends: 3394 [2023-04-02 05:01:19,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=144, Invalid=1416, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 05:01:19,982 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 572 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 3763 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 3895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 3763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:19,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 204 Invalid, 3895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 3763 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 05:01:19,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3394 states. [2023-04-02 05:01:20,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3394 to 3216. [2023-04-02 05:01:20,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 2436 states have (on average 1.2561576354679802) internal successors, (3060), 2498 states have internal predecessors, (3060), 477 states have call successors, (477), 254 states have call predecessors, (477), 302 states have return successors, (540), 463 states have call predecessors, (540), 476 states have call successors, (540) [2023-04-02 05:01:20,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 4077 transitions. [2023-04-02 05:01:20,608 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 4077 transitions. Word has length 320 [2023-04-02 05:01:20,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:20,609 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 4077 transitions. [2023-04-02 05:01:20,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.166666666666666) internal successors, (122), 11 states have internal predecessors, (122), 5 states have call successors, (27), 5 states have call predecessors, (27), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2023-04-02 05:01:20,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 4077 transitions. [2023-04-02 05:01:20,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2023-04-02 05:01:20,613 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:20,613 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:01:20,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-04-02 05:01:20,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-04-02 05:01:20,814 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:20,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:20,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1334674389, now seen corresponding path program 1 times [2023-04-02 05:01:20,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:20,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173469228] [2023-04-02 05:01:20,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:20,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:20,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:20,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:21,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:01:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:21,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:21,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:01:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:21,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:21,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:01:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:21,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:21,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 05:01:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:21,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:21,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-04-02 05:01:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:21,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:21,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:01:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:21,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 05:01:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:21,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 05:01:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:21,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 05:01:21,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:21,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 05:01:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:21,213 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 754 trivial. 0 not checked. [2023-04-02 05:01:21,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:21,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173469228] [2023-04-02 05:01:21,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173469228] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:01:21,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897488824] [2023-04-02 05:01:21,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:21,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:21,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:01:21,217 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:01:21,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-04-02 05:01:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:21,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 05:01:21,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:01:21,540 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2023-04-02 05:01:21,540 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:01:21,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897488824] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:21,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:01:21,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [16] total 16 [2023-04-02 05:01:21,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469553617] [2023-04-02 05:01:21,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:21,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 05:01:21,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:21,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 05:01:21,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:01:21,542 INFO L87 Difference]: Start difference. First operand 3216 states and 4077 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-02 05:01:22,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:22,012 INFO L93 Difference]: Finished difference Result 5375 states and 6843 transitions. [2023-04-02 05:01:22,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 05:01:22,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) Word has length 322 [2023-04-02 05:01:22,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:22,021 INFO L225 Difference]: With dead ends: 5375 [2023-04-02 05:01:22,022 INFO L226 Difference]: Without dead ends: 3232 [2023-04-02 05:01:22,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-04-02 05:01:22,028 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 135 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:22,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 563 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 05:01:22,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3232 states. [2023-04-02 05:01:22,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3232 to 2994. [2023-04-02 05:01:22,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2994 states, 2277 states have (on average 1.2450592885375493) internal successors, (2835), 2324 states have internal predecessors, (2835), 432 states have call successors, (432), 248 states have call predecessors, (432), 284 states have return successors, (471), 421 states have call predecessors, (471), 431 states have call successors, (471) [2023-04-02 05:01:22,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2994 states to 2994 states and 3738 transitions. [2023-04-02 05:01:22,537 INFO L78 Accepts]: Start accepts. Automaton has 2994 states and 3738 transitions. Word has length 322 [2023-04-02 05:01:22,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:22,537 INFO L495 AbstractCegarLoop]: Abstraction has 2994 states and 3738 transitions. [2023-04-02 05:01:22,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-02 05:01:22,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2994 states and 3738 transitions. [2023-04-02 05:01:22,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2023-04-02 05:01:22,542 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:22,542 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 8, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 05:01:22,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-04-02 05:01:22,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:22,745 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:22,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:22,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1426578866, now seen corresponding path program 1 times [2023-04-02 05:01:22,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:22,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834250251] [2023-04-02 05:01:22,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:22,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:22,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:22,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:22,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:22,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:22,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:22,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:22,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:22,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:22,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:22,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:22,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:22,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:22,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:22,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:22,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:22,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:22,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:22,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:22,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:22,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:01:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:01:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:01:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 05:01:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 05:01:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:01:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 05:01:23,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 05:01:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 05:01:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 05:01:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,278 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 754 trivial. 0 not checked. [2023-04-02 05:01:23,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:23,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834250251] [2023-04-02 05:01:23,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834250251] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:01:23,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065782624] [2023-04-02 05:01:23,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:23,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:23,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:01:23,280 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:01:23,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-04-02 05:01:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:23,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 17 conjunts are in the unsatisfiable core [2023-04-02 05:01:23,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:01:23,643 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2023-04-02 05:01:23,644 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:01:23,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065782624] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:23,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:01:23,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [21] total 25 [2023-04-02 05:01:23,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043384822] [2023-04-02 05:01:23,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:23,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 05:01:23,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:23,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 05:01:23,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:01:23,645 INFO L87 Difference]: Start difference. First operand 2994 states and 3738 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 4 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-04-02 05:01:24,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:24,497 INFO L93 Difference]: Finished difference Result 4909 states and 6150 transitions. [2023-04-02 05:01:24,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 05:01:24,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 4 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 322 [2023-04-02 05:01:24,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:24,506 INFO L225 Difference]: With dead ends: 4909 [2023-04-02 05:01:24,506 INFO L226 Difference]: Without dead ends: 2442 [2023-04-02 05:01:24,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 381 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2023-04-02 05:01:24,510 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 366 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:24,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 65 Invalid, 1003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 05:01:24,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2023-04-02 05:01:25,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2427. [2023-04-02 05:01:25,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2427 states, 1839 states have (on average 1.2365415986949428) internal successors, (2274), 1877 states have internal predecessors, (2274), 354 states have call successors, (354), 209 states have call predecessors, (354), 233 states have return successors, (378), 340 states have call predecessors, (378), 353 states have call successors, (378) [2023-04-02 05:01:25,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 3006 transitions. [2023-04-02 05:01:25,023 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 3006 transitions. Word has length 322 [2023-04-02 05:01:25,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:25,023 INFO L495 AbstractCegarLoop]: Abstraction has 2427 states and 3006 transitions. [2023-04-02 05:01:25,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 4 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2023-04-02 05:01:25,023 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 3006 transitions. [2023-04-02 05:01:25,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2023-04-02 05:01:25,029 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:25,029 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 05:01:25,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-04-02 05:01:25,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:25,238 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:25,239 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:25,239 INFO L85 PathProgramCache]: Analyzing trace with hash 409648079, now seen corresponding path program 1 times [2023-04-02 05:01:25,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:25,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218199579] [2023-04-02 05:01:25,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:25,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:26,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:26,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:26,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:01:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:01:26,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:01:26,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 05:01:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-04-02 05:01:26,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:26,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:01:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 05:01:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-04-02 05:01:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-04-02 05:01:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-04-02 05:01:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-04-02 05:01:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-04-02 05:01:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-04-02 05:01:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:01:26,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 05:01:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 05:01:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,697 INFO L134 CoverageAnalysis]: Checked inductivity of 895 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2023-04-02 05:01:26,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:26,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218199579] [2023-04-02 05:01:26,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218199579] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:01:26,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437731669] [2023-04-02 05:01:26,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:26,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:26,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:01:26,699 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:01:26,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-04-02 05:01:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:26,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 1896 conjuncts, 56 conjunts are in the unsatisfiable core [2023-04-02 05:01:26,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:01:27,436 INFO L134 CoverageAnalysis]: Checked inductivity of 895 backedges. 228 proven. 91 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2023-04-02 05:01:27,436 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:01:28,350 INFO L134 CoverageAnalysis]: Checked inductivity of 895 backedges. 40 proven. 71 refuted. 0 times theorem prover too weak. 784 trivial. 0 not checked. [2023-04-02 05:01:28,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437731669] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:01:28,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:01:28,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 13, 14] total 44 [2023-04-02 05:01:28,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584307051] [2023-04-02 05:01:28,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:01:28,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-04-02 05:01:28,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:28,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-04-02 05:01:28,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1737, Unknown=0, NotChecked=0, Total=1892 [2023-04-02 05:01:28,354 INFO L87 Difference]: Start difference. First operand 2427 states and 3006 transitions. Second operand has 44 states, 43 states have (on average 6.790697674418604) internal successors, (292), 31 states have internal predecessors, (292), 16 states have call successors, (82), 16 states have call predecessors, (82), 19 states have return successors, (81), 22 states have call predecessors, (81), 16 states have call successors, (81) [2023-04-02 05:01:51,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:51,302 INFO L93 Difference]: Finished difference Result 9492 states and 12468 transitions. [2023-04-02 05:01:51,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2023-04-02 05:01:51,303 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 6.790697674418604) internal successors, (292), 31 states have internal predecessors, (292), 16 states have call successors, (82), 16 states have call predecessors, (82), 19 states have return successors, (81), 22 states have call predecessors, (81), 16 states have call successors, (81) Word has length 388 [2023-04-02 05:01:51,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:51,330 INFO L225 Difference]: With dead ends: 9492 [2023-04-02 05:01:51,331 INFO L226 Difference]: Without dead ends: 7592 [2023-04-02 05:01:51,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1119 GetRequests, 888 SyntacticMatches, 1 SemanticMatches, 230 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18780 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=5649, Invalid=47943, Unknown=0, NotChecked=0, Total=53592 [2023-04-02 05:01:51,347 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 8355 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 17836 mSolverCounterSat, 2794 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8355 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 20630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2794 IncrementalHoareTripleChecker+Valid, 17836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:51,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8355 Valid, 362 Invalid, 20630 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2794 Valid, 17836 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2023-04-02 05:01:51,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7592 states. [2023-04-02 05:01:52,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7592 to 4720. [2023-04-02 05:01:52,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4720 states, 3558 states have (on average 1.2445193929173692) internal successors, (4428), 3641 states have internal predecessors, (4428), 691 states have call successors, (691), 401 states have call predecessors, (691), 470 states have return successors, (766), 677 states have call predecessors, (766), 690 states have call successors, (766) [2023-04-02 05:01:52,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4720 states to 4720 states and 5885 transitions. [2023-04-02 05:01:52,408 INFO L78 Accepts]: Start accepts. Automaton has 4720 states and 5885 transitions. Word has length 388 [2023-04-02 05:01:52,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:52,408 INFO L495 AbstractCegarLoop]: Abstraction has 4720 states and 5885 transitions. [2023-04-02 05:01:52,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 6.790697674418604) internal successors, (292), 31 states have internal predecessors, (292), 16 states have call successors, (82), 16 states have call predecessors, (82), 19 states have return successors, (81), 22 states have call predecessors, (81), 16 states have call successors, (81) [2023-04-02 05:01:52,409 INFO L276 IsEmpty]: Start isEmpty. Operand 4720 states and 5885 transitions. [2023-04-02 05:01:52,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2023-04-02 05:01:52,422 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:52,423 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 05:01:52,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-04-02 05:01:52,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:52,633 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:52,634 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:52,634 INFO L85 PathProgramCache]: Analyzing trace with hash -824584299, now seen corresponding path program 1 times [2023-04-02 05:01:52,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:52,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312472622] [2023-04-02 05:01:52,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:52,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:52,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:52,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:52,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:52,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:52,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:01:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:01:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:52,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:01:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:52,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:01:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 05:01:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:01:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 05:01:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-04-02 05:01:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-04-02 05:01:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-04-02 05:01:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-04-02 05:01:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-04-02 05:01:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-04-02 05:01:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:52,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:53,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:01:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:53,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 05:01:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:53,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 05:01:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:53,041 INFO L134 CoverageAnalysis]: Checked inductivity of 895 backedges. 46 proven. 5 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked. [2023-04-02 05:01:53,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:53,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312472622] [2023-04-02 05:01:53,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312472622] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:01:53,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442010352] [2023-04-02 05:01:53,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:53,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:53,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:01:53,043 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:01:53,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-04-02 05:01:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:53,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 1896 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 05:01:53,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:01:53,342 INFO L134 CoverageAnalysis]: Checked inductivity of 895 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 747 trivial. 0 not checked. [2023-04-02 05:01:53,342 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 05:01:53,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442010352] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:01:53,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 05:01:53,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 11 [2023-04-02 05:01:53,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973331236] [2023-04-02 05:01:53,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:01:53,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 05:01:53,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:53,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 05:01:53,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-02 05:01:53,344 INFO L87 Difference]: Start difference. First operand 4720 states and 5885 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-02 05:01:54,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:01:54,302 INFO L93 Difference]: Finished difference Result 9188 states and 11475 transitions. [2023-04-02 05:01:54,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 05:01:54,303 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 389 [2023-04-02 05:01:54,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:01:54,321 INFO L225 Difference]: With dead ends: 9188 [2023-04-02 05:01:54,321 INFO L226 Difference]: Without dead ends: 4656 [2023-04-02 05:01:54,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-04-02 05:01:54,331 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 30 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:01:54,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 717 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 05:01:54,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4656 states. [2023-04-02 05:01:55,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4656 to 4656. [2023-04-02 05:01:55,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4656 states, 3510 states have (on average 1.198860398860399) internal successors, (4208), 3593 states have internal predecessors, (4208), 691 states have call successors, (691), 401 states have call predecessors, (691), 454 states have return successors, (750), 661 states have call predecessors, (750), 690 states have call successors, (750) [2023-04-02 05:01:55,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4656 states to 4656 states and 5649 transitions. [2023-04-02 05:01:55,426 INFO L78 Accepts]: Start accepts. Automaton has 4656 states and 5649 transitions. Word has length 389 [2023-04-02 05:01:55,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:01:55,426 INFO L495 AbstractCegarLoop]: Abstraction has 4656 states and 5649 transitions. [2023-04-02 05:01:55,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-02 05:01:55,427 INFO L276 IsEmpty]: Start isEmpty. Operand 4656 states and 5649 transitions. [2023-04-02 05:01:55,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2023-04-02 05:01:55,437 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:01:55,438 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 05:01:55,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-04-02 05:01:55,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:55,647 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:01:55,647 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:01:55,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1077356355, now seen corresponding path program 1 times [2023-04-02 05:01:55,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:01:55,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296867672] [2023-04-02 05:01:55,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:55,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:01:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:01:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:01:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:01:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:01:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:01:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:01:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:01:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:01:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:01:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:01:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:01:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:01:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:01:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:01:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 05:01:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:01:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 05:01:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-04-02 05:01:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:01:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 05:01:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 05:01:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-04-02 05:01:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-04-02 05:01:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-04-02 05:01:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-04-02 05:01:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:01:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-04-02 05:01:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-04-02 05:01:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:01:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:01:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 05:01:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 05:01:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:56,859 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 877 trivial. 0 not checked. [2023-04-02 05:01:56,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:01:56,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296867672] [2023-04-02 05:01:56,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296867672] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:01:56,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751433265] [2023-04-02 05:01:56,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:01:56,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:01:56,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:01:56,861 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:01:56,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-04-02 05:01:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:01:57,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 1897 conjuncts, 56 conjunts are in the unsatisfiable core [2023-04-02 05:01:57,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:01:57,662 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 194 proven. 118 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2023-04-02 05:01:57,662 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:01:58,498 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 37 proven. 66 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2023-04-02 05:01:58,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751433265] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:01:58,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:01:58,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 13, 14] total 42 [2023-04-02 05:01:58,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49013361] [2023-04-02 05:01:58,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:01:58,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-04-02 05:01:58,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:01:58,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-04-02 05:01:58,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1577, Unknown=0, NotChecked=0, Total=1722 [2023-04-02 05:01:58,502 INFO L87 Difference]: Start difference. First operand 4656 states and 5649 transitions. Second operand has 42 states, 40 states have (on average 7.15) internal successors, (286), 28 states have internal predecessors, (286), 15 states have call successors, (78), 16 states have call predecessors, (78), 18 states have return successors, (77), 21 states have call predecessors, (77), 15 states have call successors, (77) [2023-04-02 05:02:20,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:02:20,941 INFO L93 Difference]: Finished difference Result 9668 states and 11830 transitions. [2023-04-02 05:02:20,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2023-04-02 05:02:20,941 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 40 states have (on average 7.15) internal successors, (286), 28 states have internal predecessors, (286), 15 states have call successors, (78), 16 states have call predecessors, (78), 18 states have return successors, (77), 21 states have call predecessors, (77), 15 states have call successors, (77) Word has length 389 [2023-04-02 05:02:20,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:02:20,962 INFO L225 Difference]: With dead ends: 9668 [2023-04-02 05:02:20,962 INFO L226 Difference]: Without dead ends: 5861 [2023-04-02 05:02:20,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1170 GetRequests, 910 SyntacticMatches, 1 SemanticMatches, 259 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24982 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=6583, Invalid=61277, Unknown=0, NotChecked=0, Total=67860 [2023-04-02 05:02:20,977 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 3806 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 16753 mSolverCounterSat, 1086 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3806 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 17839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1086 IncrementalHoareTripleChecker+Valid, 16753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-04-02 05:02:20,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3806 Valid, 581 Invalid, 17839 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1086 Valid, 16753 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2023-04-02 05:02:20,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5861 states. [2023-04-02 05:02:22,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5861 to 5125. [2023-04-02 05:02:22,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 3855 states have (on average 1.1971465629053177) internal successors, (4615), 3946 states have internal predecessors, (4615), 763 states have call successors, (763), 447 states have call predecessors, (763), 506 states have return successors, (843), 731 states have call predecessors, (843), 762 states have call successors, (843) [2023-04-02 05:02:22,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 6221 transitions. [2023-04-02 05:02:22,085 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 6221 transitions. Word has length 389 [2023-04-02 05:02:22,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:02:22,086 INFO L495 AbstractCegarLoop]: Abstraction has 5125 states and 6221 transitions. [2023-04-02 05:02:22,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 40 states have (on average 7.15) internal successors, (286), 28 states have internal predecessors, (286), 15 states have call successors, (78), 16 states have call predecessors, (78), 18 states have return successors, (77), 21 states have call predecessors, (77), 15 states have call successors, (77) [2023-04-02 05:02:22,086 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 6221 transitions. [2023-04-02 05:02:22,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2023-04-02 05:02:22,096 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:02:22,096 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 05:02:22,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-04-02 05:02:22,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:02:22,307 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:02:22,307 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:02:22,308 INFO L85 PathProgramCache]: Analyzing trace with hash -716783013, now seen corresponding path program 1 times [2023-04-02 05:02:22,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:02:22,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009949071] [2023-04-02 05:02:22,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:22,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:02:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:02:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:02:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:02:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:02:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:02:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:02:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:02:23,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:02:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:02:23,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:02:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:02:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:02:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:02:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:02:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:02:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-04-02 05:02:23,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-04-02 05:02:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2023-04-02 05:02:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-04-02 05:02:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:02:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 05:02:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-04-02 05:02:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-04-02 05:02:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-04-02 05:02:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-04-02 05:02:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-04-02 05:02:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-04-02 05:02:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:23,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:02:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 05:02:23,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 05:02:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 05:02:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,560 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 929 trivial. 0 not checked. [2023-04-02 05:02:23,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:02:23,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009949071] [2023-04-02 05:02:23,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009949071] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:02:23,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366460155] [2023-04-02 05:02:23,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:23,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:02:23,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:02:23,565 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:02:23,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-04-02 05:02:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:23,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 1922 conjuncts, 54 conjunts are in the unsatisfiable core [2023-04-02 05:02:23,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:02:24,357 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 305 proven. 92 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-04-02 05:02:24,358 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:02:25,325 INFO L134 CoverageAnalysis]: Checked inductivity of 952 backedges. 29 proven. 224 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2023-04-02 05:02:25,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366460155] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:02:25,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:02:25,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 14, 19] total 50 [2023-04-02 05:02:25,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471257761] [2023-04-02 05:02:25,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:02:25,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-04-02 05:02:25,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:02:25,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-04-02 05:02:25,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=2278, Unknown=0, NotChecked=0, Total=2450 [2023-04-02 05:02:25,329 INFO L87 Difference]: Start difference. First operand 5125 states and 6221 transitions. Second operand has 50 states, 48 states have (on average 7.041666666666667) internal successors, (338), 35 states have internal predecessors, (338), 19 states have call successors, (96), 17 states have call predecessors, (96), 17 states have return successors, (93), 21 states have call predecessors, (93), 18 states have call successors, (93) [2023-04-02 05:02:37,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:02:37,686 INFO L93 Difference]: Finished difference Result 10757 states and 13078 transitions. [2023-04-02 05:02:37,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-04-02 05:02:37,687 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 7.041666666666667) internal successors, (338), 35 states have internal predecessors, (338), 19 states have call successors, (96), 17 states have call predecessors, (96), 17 states have return successors, (93), 21 states have call predecessors, (93), 18 states have call successors, (93) Word has length 399 [2023-04-02 05:02:37,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:02:37,708 INFO L225 Difference]: With dead ends: 10757 [2023-04-02 05:02:37,709 INFO L226 Difference]: Without dead ends: 6437 [2023-04-02 05:02:37,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1024 GetRequests, 881 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5816 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=2410, Invalid=18470, Unknown=0, NotChecked=0, Total=20880 [2023-04-02 05:02:37,721 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 3293 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 11898 mSolverCounterSat, 1103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3301 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 13001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1103 IncrementalHoareTripleChecker+Valid, 11898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-04-02 05:02:37,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3301 Valid, 554 Invalid, 13001 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1103 Valid, 11898 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-04-02 05:02:37,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6437 states. [2023-04-02 05:02:38,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6437 to 4986. [2023-04-02 05:02:38,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4986 states, 3757 states have (on average 1.1959009848283204) internal successors, (4493), 3842 states have internal predecessors, (4493), 733 states have call successors, (733), 436 states have call predecessors, (733), 495 states have return successors, (813), 707 states have call predecessors, (813), 732 states have call successors, (813) [2023-04-02 05:02:38,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4986 states to 4986 states and 6039 transitions. [2023-04-02 05:02:38,790 INFO L78 Accepts]: Start accepts. Automaton has 4986 states and 6039 transitions. Word has length 399 [2023-04-02 05:02:38,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:02:38,790 INFO L495 AbstractCegarLoop]: Abstraction has 4986 states and 6039 transitions. [2023-04-02 05:02:38,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 7.041666666666667) internal successors, (338), 35 states have internal predecessors, (338), 19 states have call successors, (96), 17 states have call predecessors, (96), 17 states have return successors, (93), 21 states have call predecessors, (93), 18 states have call successors, (93) [2023-04-02 05:02:38,791 INFO L276 IsEmpty]: Start isEmpty. Operand 4986 states and 6039 transitions. [2023-04-02 05:02:38,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2023-04-02 05:02:38,801 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:02:38,801 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 05:02:38,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-04-02 05:02:39,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:02:39,009 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:02:39,009 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:02:39,009 INFO L85 PathProgramCache]: Analyzing trace with hash 967768020, now seen corresponding path program 1 times [2023-04-02 05:02:39,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:02:39,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568918108] [2023-04-02 05:02:39,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:39,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:02:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:39,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:02:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:39,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:39,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:39,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:39,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:02:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:39,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:02:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:39,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:02:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:39,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:02:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:39,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:02:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:39,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:02:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:39,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:02:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:39,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:02:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:39,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:02:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:39,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:02:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:39,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:02:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:39,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:02:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:39,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:02:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:39,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:02:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:39,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:02:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:39,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-04-02 05:02:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-04-02 05:02:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-04-02 05:02:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-04-02 05:02:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:02:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 05:02:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 05:02:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-04-02 05:02:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-04-02 05:02:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:40,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2023-04-02 05:02:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-04-02 05:02:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:02:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-04-02 05:02:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-04-02 05:02:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:02:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:02:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 05:02:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 05:02:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 05:02:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 996 trivial. 0 not checked. [2023-04-02 05:02:40,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:02:40,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568918108] [2023-04-02 05:02:40,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568918108] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:02:40,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105356001] [2023-04-02 05:02:40,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:02:40,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:02:40,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:02:40,177 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:02:40,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-04-02 05:02:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:02:40,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 1948 conjuncts, 86 conjunts are in the unsatisfiable core [2023-04-02 05:02:40,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:02:41,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 480 proven. 183 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2023-04-02 05:02:41,620 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:02:43,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 88 proven. 217 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2023-04-02 05:02:43,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105356001] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:02:43,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:02:43,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 25, 22] total 66 [2023-04-02 05:02:43,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937665595] [2023-04-02 05:02:43,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:02:43,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2023-04-02 05:02:43,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:02:43,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2023-04-02 05:02:43,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=3986, Unknown=0, NotChecked=0, Total=4290 [2023-04-02 05:02:43,304 INFO L87 Difference]: Start difference. First operand 4986 states and 6039 transitions. Second operand has 66 states, 62 states have (on average 6.338709677419355) internal successors, (393), 48 states have internal predecessors, (393), 27 states have call successors, (97), 19 states have call predecessors, (97), 24 states have return successors, (96), 30 states have call predecessors, (96), 27 states have call successors, (96) [2023-04-02 05:03:04,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:03:04,213 INFO L93 Difference]: Finished difference Result 12643 states and 15304 transitions. [2023-04-02 05:03:04,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2023-04-02 05:03:04,213 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 62 states have (on average 6.338709677419355) internal successors, (393), 48 states have internal predecessors, (393), 27 states have call successors, (97), 19 states have call predecessors, (97), 24 states have return successors, (96), 30 states have call predecessors, (96), 27 states have call successors, (96) Word has length 410 [2023-04-02 05:03:04,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:03:04,242 INFO L225 Difference]: With dead ends: 12643 [2023-04-02 05:03:04,243 INFO L226 Difference]: Without dead ends: 8323 [2023-04-02 05:03:04,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1108 GetRequests, 907 SyntacticMatches, 0 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12779 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=4528, Invalid=36478, Unknown=0, NotChecked=0, Total=41006 [2023-04-02 05:03:04,255 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 4688 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 16328 mSolverCounterSat, 1565 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4697 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 17893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1565 IncrementalHoareTripleChecker+Valid, 16328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-04-02 05:03:04,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4697 Valid, 678 Invalid, 17893 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1565 Valid, 16328 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2023-04-02 05:03:04,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8323 states. [2023-04-02 05:03:05,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8323 to 4992. [2023-04-02 05:03:05,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4992 states, 3762 states have (on average 1.1940457203615098) internal successors, (4492), 3847 states have internal predecessors, (4492), 733 states have call successors, (733), 437 states have call predecessors, (733), 496 states have return successors, (813), 707 states have call predecessors, (813), 732 states have call successors, (813) [2023-04-02 05:03:05,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4992 states to 4992 states and 6038 transitions. [2023-04-02 05:03:05,496 INFO L78 Accepts]: Start accepts. Automaton has 4992 states and 6038 transitions. Word has length 410 [2023-04-02 05:03:05,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:03:05,496 INFO L495 AbstractCegarLoop]: Abstraction has 4992 states and 6038 transitions. [2023-04-02 05:03:05,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 62 states have (on average 6.338709677419355) internal successors, (393), 48 states have internal predecessors, (393), 27 states have call successors, (97), 19 states have call predecessors, (97), 24 states have return successors, (96), 30 states have call predecessors, (96), 27 states have call successors, (96) [2023-04-02 05:03:05,497 INFO L276 IsEmpty]: Start isEmpty. Operand 4992 states and 6038 transitions. [2023-04-02 05:03:05,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2023-04-02 05:03:05,505 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:03:05,506 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 9, 9, 7, 7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 05:03:05,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-04-02 05:03:05,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-04-02 05:03:05,707 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:03:05,707 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:03:05,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1711195081, now seen corresponding path program 1 times [2023-04-02 05:03:05,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:03:05,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509179723] [2023-04-02 05:03:05,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:03:05,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:03:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:05,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:03:05,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:05,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:03:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:05,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:05,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:03:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:05,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:03:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:05,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:03:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:05,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:03:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:05,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:03:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:05,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:03:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:05,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:03:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:05,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:03:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:05,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:03:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:05,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:03:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:05,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:03:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:05,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:03:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:05,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:03:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:05,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:03:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:05,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:03:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:03:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-04-02 05:03:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-04-02 05:03:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:06,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-04-02 05:03:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:03:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-04-02 05:03:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:03:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:03:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 05:03:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 05:03:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:03:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2023-04-02 05:03:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-04-02 05:03:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-04-02 05:03:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-04-02 05:03:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-04-02 05:03:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:03:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-04-02 05:03:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:03:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:03:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 05:03:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 05:03:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 05:03:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2023-04-02 05:03:06,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:03:06,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509179723] [2023-04-02 05:03:06,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509179723] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 05:03:06,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687433122] [2023-04-02 05:03:06,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:03:06,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 05:03:06,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 05:03:06,145 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 05:03:06,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-04-02 05:03:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:06,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 1973 conjuncts, 46 conjunts are in the unsatisfiable core [2023-04-02 05:03:06,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 05:03:06,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 363 proven. 48 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2023-04-02 05:03:06,751 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 05:03:07,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 35 proven. 63 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2023-04-02 05:03:07,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687433122] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 05:03:07,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 05:03:07,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 9] total 25 [2023-04-02 05:03:07,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603186784] [2023-04-02 05:03:07,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 05:03:07,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-04-02 05:03:07,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:03:07,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-04-02 05:03:07,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2023-04-02 05:03:07,266 INFO L87 Difference]: Start difference. First operand 4992 states and 6038 transitions. Second operand has 25 states, 25 states have (on average 11.64) internal successors, (291), 16 states have internal predecessors, (291), 8 states have call successors, (76), 12 states have call predecessors, (76), 9 states have return successors, (69), 9 states have call predecessors, (69), 8 states have call successors, (69) [2023-04-02 05:03:11,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 05:03:11,766 INFO L93 Difference]: Finished difference Result 9829 states and 11898 transitions. [2023-04-02 05:03:11,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-04-02 05:03:11,767 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.64) internal successors, (291), 16 states have internal predecessors, (291), 8 states have call successors, (76), 12 states have call predecessors, (76), 9 states have return successors, (69), 9 states have call predecessors, (69), 8 states have call successors, (69) Word has length 421 [2023-04-02 05:03:11,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 05:03:11,782 INFO L225 Difference]: With dead ends: 9829 [2023-04-02 05:03:11,783 INFO L226 Difference]: Without dead ends: 5609 [2023-04-02 05:03:11,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 982 GetRequests, 924 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 917 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=625, Invalid=2915, Unknown=0, NotChecked=0, Total=3540 [2023-04-02 05:03:11,788 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 1657 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 2754 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1663 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 3276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 2754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-02 05:03:11,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1663 Valid, 182 Invalid, 3276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 2754 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-02 05:03:11,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5609 states. [2023-04-02 05:03:12,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5609 to 4669. [2023-04-02 05:03:12,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4669 states, 3522 states have (on average 1.1930721181147075) internal successors, (4202), 3603 states have internal predecessors, (4202), 685 states have call successors, (685), 406 states have call predecessors, (685), 461 states have return successors, (752), 659 states have call predecessors, (752), 684 states have call successors, (752) [2023-04-02 05:03:12,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4669 states to 4669 states and 5639 transitions. [2023-04-02 05:03:12,803 INFO L78 Accepts]: Start accepts. Automaton has 4669 states and 5639 transitions. Word has length 421 [2023-04-02 05:03:12,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 05:03:12,804 INFO L495 AbstractCegarLoop]: Abstraction has 4669 states and 5639 transitions. [2023-04-02 05:03:12,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.64) internal successors, (291), 16 states have internal predecessors, (291), 8 states have call successors, (76), 12 states have call predecessors, (76), 9 states have return successors, (69), 9 states have call predecessors, (69), 8 states have call successors, (69) [2023-04-02 05:03:12,804 INFO L276 IsEmpty]: Start isEmpty. Operand 4669 states and 5639 transitions. [2023-04-02 05:03:12,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2023-04-02 05:03:12,810 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 05:03:12,810 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 9, 9, 7, 7, 7, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 05:03:12,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-04-02 05:03:13,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-04-02 05:03:13,011 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 05:03:13,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 05:03:13,011 INFO L85 PathProgramCache]: Analyzing trace with hash 437912000, now seen corresponding path program 1 times [2023-04-02 05:03:13,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 05:03:13,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368738106] [2023-04-02 05:03:13,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 05:03:13,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 05:03:13,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 05:03:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:03:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:03:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 05:03:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 05:03:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:03:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 05:03:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 05:03:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 05:03:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 05:03:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 05:03:13,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:03:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 05:03:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 05:03:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 05:03:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 05:03:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 05:03:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 05:03:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-04-02 05:03:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 05:03:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 05:03:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:03:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-04-02 05:03:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:03:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:03:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 05:03:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 05:03:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 05:03:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-04-02 05:03:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2023-04-02 05:03:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2023-04-02 05:03:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2023-04-02 05:03:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 05:03:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2023-04-02 05:03:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:03:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2023-04-02 05:03:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 05:03:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 05:03:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 05:03:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 05:03:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 05:03:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 05:03:13,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 1063 trivial. 0 not checked. [2023-04-02 05:03:13,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 05:03:13,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368738106] [2023-04-02 05:03:13,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368738106] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 05:03:13,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 05:03:13,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 05:03:13,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403569164] [2023-04-02 05:03:13,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 05:03:13,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 05:03:13,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 05:03:13,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 05:03:13,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2023-04-02 05:03:13,550 INFO L87 Difference]: Start difference. First operand 4669 states and 5639 transitions. Second operand has 17 states, 16 states have (on average 7.875) internal successors, (126), 9 states have internal predecessors, (126), 5 states have call successors, (31), 9 states have call predecessors, (31), 5 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30)