/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/systemc/token_ring.05.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:24:21,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:24:21,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:24:21,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:24:21,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:24:21,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:24:21,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:24:21,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:24:21,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:24:21,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:24:21,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:24:21,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:24:21,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:24:21,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:24:21,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:24:21,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:24:21,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:24:21,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:24:21,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:24:21,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:24:21,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:24:21,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:24:21,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:24:21,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:24:21,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:24:21,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:24:21,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:24:21,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:24:21,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:24:21,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:24:21,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:24:21,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:24:21,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:24:21,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:24:21,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:24:21,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:24:21,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:24:21,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:24:21,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:24:21,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:24:21,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:24:21,929 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-31 01:24:21,953 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:24:21,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:24:21,953 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:24:21,953 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:24:21,954 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:24:21,954 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:24:21,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:24:21,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:24:21,955 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:24:21,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:24:21,956 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:24:21,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:24:21,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:24:21,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:24:21,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:24:21,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:24:21,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:24:21,956 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:24:21,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:24:21,957 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:24:21,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:24:21,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:24:21,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:24:21,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:24:21,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:24:21,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:24:21,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:24:21,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:24:21,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:24:21,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:24:21,958 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:24:21,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:24:21,958 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:24:21,958 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:24:21,958 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:24:21,958 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:24:22,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:24:22,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:24:22,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:24:22,209 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:24:22,210 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:24:22,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.05.cil-2.c [2023-03-31 01:24:23,242 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:24:23,406 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:24:23,406 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.05.cil-2.c [2023-03-31 01:24:23,422 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5922bb644/3275b6ec43134bc5affb406756c6d15b/FLAG5a1de36a7 [2023-03-31 01:24:23,434 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5922bb644/3275b6ec43134bc5affb406756c6d15b [2023-03-31 01:24:23,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:24:23,437 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:24:23,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:24:23,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:24:23,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:24:23,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:24:23" (1/1) ... [2023-03-31 01:24:23,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cebd4c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:23, skipping insertion in model container [2023-03-31 01:24:23,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:24:23" (1/1) ... [2023-03-31 01:24:23,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:24:23,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:24:23,586 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/systemc/token_ring.05.cil-2.c[671,684] [2023-03-31 01:24:23,657 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:24:23,667 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:24:23,678 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/systemc/token_ring.05.cil-2.c[671,684] [2023-03-31 01:24:23,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:24:23,729 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:24:23,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:23 WrapperNode [2023-03-31 01:24:23,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:24:23,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:24:23,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:24:23,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:24:23,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:23" (1/1) ... [2023-03-31 01:24:23,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:23" (1/1) ... [2023-03-31 01:24:23,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:23" (1/1) ... [2023-03-31 01:24:23,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:23" (1/1) ... [2023-03-31 01:24:23,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:23" (1/1) ... [2023-03-31 01:24:23,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:23" (1/1) ... [2023-03-31 01:24:23,780 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:23" (1/1) ... [2023-03-31 01:24:23,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:23" (1/1) ... [2023-03-31 01:24:23,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:24:23,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:24:23,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:24:23,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:24:23,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:23" (1/1) ... [2023-03-31 01:24:23,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:24:23,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:24:23,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 01:24:23,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 01:24:23,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:24:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:24:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:24:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-03-31 01:24:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2023-03-31 01:24:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2023-03-31 01:24:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2023-03-31 01:24:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2023-03-31 01:24:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2023-03-31 01:24:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2023-03-31 01:24:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2023-03-31 01:24:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2023-03-31 01:24:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2023-03-31 01:24:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2023-03-31 01:24:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2023-03-31 01:24:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2023-03-31 01:24:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-03-31 01:24:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2023-03-31 01:24:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-03-31 01:24:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2023-03-31 01:24:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-03-31 01:24:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-03-31 01:24:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-03-31 01:24:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-03-31 01:24:23,854 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2023-03-31 01:24:23,855 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2023-03-31 01:24:23,855 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2023-03-31 01:24:23,855 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2023-03-31 01:24:23,855 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2023-03-31 01:24:23,855 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:24:23,855 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:24:23,855 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:24:23,855 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:24:23,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:24:23,855 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-03-31 01:24:23,855 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2023-03-31 01:24:23,855 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2023-03-31 01:24:23,855 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2023-03-31 01:24:23,855 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2023-03-31 01:24:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2023-03-31 01:24:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2023-03-31 01:24:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-03-31 01:24:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 01:24:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure master [2023-03-31 01:24:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2023-03-31 01:24:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2023-03-31 01:24:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2023-03-31 01:24:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2023-03-31 01:24:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2023-03-31 01:24:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-03-31 01:24:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2023-03-31 01:24:23,858 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-03-31 01:24:23,858 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2023-03-31 01:24:23,858 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-03-31 01:24:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-03-31 01:24:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-03-31 01:24:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2023-03-31 01:24:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2023-03-31 01:24:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2023-03-31 01:24:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2023-03-31 01:24:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2023-03-31 01:24:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:24:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:24:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:24:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:24:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:24:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:24:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:24:23,976 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:24:23,978 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:24:24,447 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:24:24,464 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:24:24,465 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-03-31 01:24:24,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:24:24 BoogieIcfgContainer [2023-03-31 01:24:24,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:24:24,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:24:24,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:24:24,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:24:24,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:24:23" (1/3) ... [2023-03-31 01:24:24,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13503234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:24:24, skipping insertion in model container [2023-03-31 01:24:24,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:24:23" (2/3) ... [2023-03-31 01:24:24,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13503234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:24:24, skipping insertion in model container [2023-03-31 01:24:24,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:24:24" (3/3) ... [2023-03-31 01:24:24,474 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.05.cil-2.c [2023-03-31 01:24:24,488 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:24:24,488 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:24:24,552 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:24:24,558 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;@1aeffdc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:24:24,559 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:24:24,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 271 states, 199 states have (on average 1.5879396984924623) internal successors, (316), 210 states have internal predecessors, (316), 42 states have call successors, (42), 28 states have call predecessors, (42), 28 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2023-03-31 01:24:24,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-03-31 01:24:24,584 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:24:24,585 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:24:24,585 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:24:24,589 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:24:24,590 INFO L85 PathProgramCache]: Analyzing trace with hash -801719020, now seen corresponding path program 1 times [2023-03-31 01:24:24,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:24:24,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920216170] [2023-03-31 01:24:24,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:24:24,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:24:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:25,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:24:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:25,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:24:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:25,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:24:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:25,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:24:25,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:25,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 01:24:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:25,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:24:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:25,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:24:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:25,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:24:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:25,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:24:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:25,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:24:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:25,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:24:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:25,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:24:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:25,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:24:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:25,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 01:24:25,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:25,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:24:25,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:24:25,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920216170] [2023-03-31 01:24:25,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920216170] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:24:25,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:24:25,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:24:25,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944134070] [2023-03-31 01:24:25,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:24:25,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:24:25,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:24:25,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:24:25,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 01:24:25,264 INFO L87 Difference]: Start difference. First operand has 271 states, 199 states have (on average 1.5879396984924623) internal successors, (316), 210 states have internal predecessors, (316), 42 states have call successors, (42), 28 states have call predecessors, (42), 28 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:27,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:24:27,163 INFO L93 Difference]: Finished difference Result 683 states and 1090 transitions. [2023-03-31 01:24:27,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-03-31 01:24:27,169 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 134 [2023-03-31 01:24:27,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:24:27,179 INFO L225 Difference]: With dead ends: 683 [2023-03-31 01:24:27,180 INFO L226 Difference]: Without dead ends: 416 [2023-03-31 01:24:27,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:24:27,186 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1474 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-03-31 01:24:27,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 42 Invalid, 1866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-03-31 01:24:27,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2023-03-31 01:24:27,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 262. [2023-03-31 01:24:27,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 194 states have (on average 1.5051546391752577) internal successors, (292), 203 states have internal predecessors, (292), 42 states have call successors, (42), 28 states have call predecessors, (42), 25 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-03-31 01:24:27,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 372 transitions. [2023-03-31 01:24:27,286 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 372 transitions. Word has length 134 [2023-03-31 01:24:27,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:24:27,286 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 372 transitions. [2023-03-31 01:24:27,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:27,286 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 372 transitions. [2023-03-31 01:24:27,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-03-31 01:24:27,289 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:24:27,289 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:24:27,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:24:27,289 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:24:27,290 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:24:27,290 INFO L85 PathProgramCache]: Analyzing trace with hash 920283666, now seen corresponding path program 1 times [2023-03-31 01:24:27,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:24:27,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696871017] [2023-03-31 01:24:27,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:24:27,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:24:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:27,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:24:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:27,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:24:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:27,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:24:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:27,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:24:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:27,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 01:24:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:27,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:24:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:27,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:24:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:27,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:24:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:27,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:24:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:27,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:24:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:27,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:24:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:27,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:24:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:27,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:24:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:27,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 01:24:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:27,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:24:27,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:24:27,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696871017] [2023-03-31 01:24:27,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696871017] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:24:27,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:24:27,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:24:27,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255754388] [2023-03-31 01:24:27,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:24:27,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:24:27,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:24:27,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:24:27,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 01:24:27,657 INFO L87 Difference]: Start difference. First operand 262 states and 372 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:30,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:24:30,027 INFO L93 Difference]: Finished difference Result 1019 states and 1534 transitions. [2023-03-31 01:24:30,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 01:24:30,028 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 134 [2023-03-31 01:24:30,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:24:30,033 INFO L225 Difference]: With dead ends: 1019 [2023-03-31 01:24:30,033 INFO L226 Difference]: Without dead ends: 780 [2023-03-31 01:24:30,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:24:30,038 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2187 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2019 mSolverCounterSat, 542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2221 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 2561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 542 IncrementalHoareTripleChecker+Valid, 2019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:24:30,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2221 Valid, 15 Invalid, 2561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [542 Valid, 2019 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-03-31 01:24:30,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2023-03-31 01:24:30,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 501. [2023-03-31 01:24:30,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 383 states have (on average 1.5195822454308094) internal successors, (582), 400 states have internal predecessors, (582), 70 states have call successors, (70), 48 states have call predecessors, (70), 47 states have return successors, (70), 67 states have call predecessors, (70), 66 states have call successors, (70) [2023-03-31 01:24:30,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 722 transitions. [2023-03-31 01:24:30,144 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 722 transitions. Word has length 134 [2023-03-31 01:24:30,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:24:30,145 INFO L495 AbstractCegarLoop]: Abstraction has 501 states and 722 transitions. [2023-03-31 01:24:30,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:30,145 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 722 transitions. [2023-03-31 01:24:30,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-03-31 01:24:30,147 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:24:30,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:24:30,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:24:30,147 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:24:30,147 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:24:30,147 INFO L85 PathProgramCache]: Analyzing trace with hash -512667694, now seen corresponding path program 1 times [2023-03-31 01:24:30,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:24:30,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131281443] [2023-03-31 01:24:30,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:24:30,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:24:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:30,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:24:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:30,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:24:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:30,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:24:30,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:30,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:24:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:30,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 01:24:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:30,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:24:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:30,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:24:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:30,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:24:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:30,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:24:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:30,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:24:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:30,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:24:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:30,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:24:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:30,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:24:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:30,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 01:24:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:30,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:24:30,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:24:30,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131281443] [2023-03-31 01:24:30,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131281443] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:24:30,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:24:30,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:24:30,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821300597] [2023-03-31 01:24:30,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:24:30,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:24:30,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:24:30,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:24:30,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:24:30,505 INFO L87 Difference]: Start difference. First operand 501 states and 722 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:35,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:24:35,029 INFO L93 Difference]: Finished difference Result 1987 states and 2996 transitions. [2023-03-31 01:24:35,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:24:35,029 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 134 [2023-03-31 01:24:35,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:24:35,036 INFO L225 Difference]: With dead ends: 1987 [2023-03-31 01:24:35,036 INFO L226 Difference]: Without dead ends: 1509 [2023-03-31 01:24:35,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-03-31 01:24:35,038 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1627 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 4851 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 5224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 4851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:24:35,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1662 Valid, 17 Invalid, 5224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 4851 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-03-31 01:24:35,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2023-03-31 01:24:35,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 994. [2023-03-31 01:24:35,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 764 states have (on average 1.5078534031413613) internal successors, (1152), 807 states have internal predecessors, (1152), 134 states have call successors, (134), 87 states have call predecessors, (134), 95 states have return successors, (154), 133 states have call predecessors, (154), 130 states have call successors, (154) [2023-03-31 01:24:35,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1440 transitions. [2023-03-31 01:24:35,222 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1440 transitions. Word has length 134 [2023-03-31 01:24:35,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:24:35,222 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1440 transitions. [2023-03-31 01:24:35,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:35,222 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1440 transitions. [2023-03-31 01:24:35,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-03-31 01:24:35,226 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:24:35,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:24:35,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:24:35,226 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:24:35,226 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:24:35,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1640439124, now seen corresponding path program 1 times [2023-03-31 01:24:35,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:24:35,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106036124] [2023-03-31 01:24:35,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:24:35,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:24:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:35,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:24:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:35,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:24:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:35,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:24:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:35,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:24:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:35,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 01:24:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:35,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:24:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:35,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:24:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:35,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:24:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:35,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:24:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:35,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:24:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:35,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:24:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:35,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:24:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:35,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:24:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:35,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 01:24:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:35,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:24:35,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:24:35,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106036124] [2023-03-31 01:24:35,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106036124] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:24:35,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:24:35,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:24:35,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036251447] [2023-03-31 01:24:35,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:24:35,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:24:35,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:24:35,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:24:35,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:24:35,556 INFO L87 Difference]: Start difference. First operand 994 states and 1440 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:40,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:24:40,065 INFO L93 Difference]: Finished difference Result 2956 states and 4463 transitions. [2023-03-31 01:24:40,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:24:40,066 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 134 [2023-03-31 01:24:40,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:24:40,080 INFO L225 Difference]: With dead ends: 2956 [2023-03-31 01:24:40,081 INFO L226 Difference]: Without dead ends: 2241 [2023-03-31 01:24:40,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-03-31 01:24:40,091 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1613 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 4884 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1648 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 5257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 4884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-03-31 01:24:40,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1648 Valid, 17 Invalid, 5257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 4884 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-03-31 01:24:40,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2023-03-31 01:24:40,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 1469. [2023-03-31 01:24:40,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 1139 states have (on average 1.5127304653204565) internal successors, (1723), 1198 states have internal predecessors, (1723), 190 states have call successors, (190), 127 states have call predecessors, (190), 139 states have return successors, (222), 191 states have call predecessors, (222), 186 states have call successors, (222) [2023-03-31 01:24:40,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2135 transitions. [2023-03-31 01:24:40,330 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2135 transitions. Word has length 134 [2023-03-31 01:24:40,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:24:40,331 INFO L495 AbstractCegarLoop]: Abstraction has 1469 states and 2135 transitions. [2023-03-31 01:24:40,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:40,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2135 transitions. [2023-03-31 01:24:40,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-03-31 01:24:40,334 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:24:40,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:24:40,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:24:40,335 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:24:40,335 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:24:40,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1017157522, now seen corresponding path program 1 times [2023-03-31 01:24:40,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:24:40,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125381271] [2023-03-31 01:24:40,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:24:40,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:24:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:40,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:24:40,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:40,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:24:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:40,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:24:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:40,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:24:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:40,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 01:24:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:40,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:24:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:40,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:24:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:40,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:24:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:40,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:24:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:40,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:24:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:40,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:24:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:40,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:24:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:40,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:24:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:40,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 01:24:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:40,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:24:40,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:24:40,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125381271] [2023-03-31 01:24:40,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125381271] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:24:40,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:24:40,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:24:40,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395770547] [2023-03-31 01:24:40,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:24:40,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:24:40,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:24:40,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:24:40,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:24:40,629 INFO L87 Difference]: Start difference. First operand 1469 states and 2135 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:44,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:24:44,678 INFO L93 Difference]: Finished difference Result 4826 states and 7280 transitions. [2023-03-31 01:24:44,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:24:44,679 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 134 [2023-03-31 01:24:44,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:24:44,699 INFO L225 Difference]: With dead ends: 4826 [2023-03-31 01:24:44,699 INFO L226 Difference]: Without dead ends: 3657 [2023-03-31 01:24:44,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-03-31 01:24:44,703 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2098 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 4288 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2133 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 4788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 4288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-03-31 01:24:44,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2133 Valid, 16 Invalid, 4788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 4288 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-03-31 01:24:44,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3657 states. [2023-03-31 01:24:45,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3657 to 2418. [2023-03-31 01:24:45,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 1888 states have (on average 1.5153601694915255) internal successors, (2861), 1979 states have internal predecessors, (2861), 302 states have call successors, (302), 207 states have call predecessors, (302), 227 states have return successors, (364), 307 states have call predecessors, (364), 298 states have call successors, (364) [2023-03-31 01:24:45,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3527 transitions. [2023-03-31 01:24:45,041 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3527 transitions. Word has length 134 [2023-03-31 01:24:45,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:24:45,041 INFO L495 AbstractCegarLoop]: Abstraction has 2418 states and 3527 transitions. [2023-03-31 01:24:45,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:45,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3527 transitions. [2023-03-31 01:24:45,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-03-31 01:24:45,044 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:24:45,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:24:45,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 01:24:45,044 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:24:45,044 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:24:45,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1135598996, now seen corresponding path program 1 times [2023-03-31 01:24:45,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:24:45,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095855046] [2023-03-31 01:24:45,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:24:45,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:24:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:45,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:24:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:45,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:24:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:45,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:24:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:45,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:24:45,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:45,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 01:24:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:45,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:24:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:45,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:24:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:45,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:24:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:45,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:24:45,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:45,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:24:45,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:45,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:24:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:45,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:24:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:45,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:24:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:45,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 01:24:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:45,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:24:45,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:24:45,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095855046] [2023-03-31 01:24:45,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095855046] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:24:45,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:24:45,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:24:45,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147776032] [2023-03-31 01:24:45,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:24:45,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:24:45,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:24:45,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:24:45,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:24:45,302 INFO L87 Difference]: Start difference. First operand 2418 states and 3527 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:49,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:24:49,520 INFO L93 Difference]: Finished difference Result 8560 states and 12932 transitions. [2023-03-31 01:24:49,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:24:49,520 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 134 [2023-03-31 01:24:49,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:24:49,549 INFO L225 Difference]: With dead ends: 8560 [2023-03-31 01:24:49,550 INFO L226 Difference]: Without dead ends: 6479 [2023-03-31 01:24:49,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-03-31 01:24:49,559 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2598 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3516 mSolverCounterSat, 665 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2633 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 4181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 665 IncrementalHoareTripleChecker+Valid, 3516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-03-31 01:24:49,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2633 Valid, 16 Invalid, 4181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [665 Valid, 3516 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-03-31 01:24:49,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6479 states. [2023-03-31 01:24:50,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6479 to 4315. [2023-03-31 01:24:50,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4315 states, 3385 states have (on average 1.515805022156573) internal successors, (5131), 3540 states have internal predecessors, (5131), 526 states have call successors, (526), 367 states have call predecessors, (526), 403 states have return successors, (666), 539 states have call predecessors, (666), 522 states have call successors, (666) [2023-03-31 01:24:50,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4315 states to 4315 states and 6323 transitions. [2023-03-31 01:24:50,302 INFO L78 Accepts]: Start accepts. Automaton has 4315 states and 6323 transitions. Word has length 134 [2023-03-31 01:24:50,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:24:50,302 INFO L495 AbstractCegarLoop]: Abstraction has 4315 states and 6323 transitions. [2023-03-31 01:24:50,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:50,303 INFO L276 IsEmpty]: Start isEmpty. Operand 4315 states and 6323 transitions. [2023-03-31 01:24:50,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-03-31 01:24:50,307 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:24:50,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:24:50,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 01:24:50,308 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:24:50,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:24:50,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1770074286, now seen corresponding path program 1 times [2023-03-31 01:24:50,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:24:50,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432230385] [2023-03-31 01:24:50,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:24:50,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:24:50,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:50,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:24:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:50,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:24:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:50,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:24:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:50,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:24:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:50,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 01:24:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:50,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:24:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:50,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:24:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:50,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:24:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:50,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:24:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:50,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:24:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:50,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:24:50,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:50,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:24:50,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:50,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:24:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:50,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 01:24:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:50,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:24:50,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:24:50,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432230385] [2023-03-31 01:24:50,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432230385] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:24:50,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:24:50,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:24:50,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304943289] [2023-03-31 01:24:50,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:24:50,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:24:50,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:24:50,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:24:50,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:24:50,582 INFO L87 Difference]: Start difference. First operand 4315 states and 6323 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:56,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:24:56,648 INFO L93 Difference]: Finished difference Result 19372 states and 29386 transitions. [2023-03-31 01:24:56,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:24:56,649 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 134 [2023-03-31 01:24:56,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:24:56,728 INFO L225 Difference]: With dead ends: 19372 [2023-03-31 01:24:56,728 INFO L226 Difference]: Without dead ends: 15459 [2023-03-31 01:24:56,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-03-31 01:24:56,745 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2425 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 4083 mSolverCounterSat, 588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2460 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 4671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 588 IncrementalHoareTripleChecker+Valid, 4083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-03-31 01:24:56,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2460 Valid, 16 Invalid, 4671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [588 Valid, 4083 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-03-31 01:24:56,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15459 states. [2023-03-31 01:24:58,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15459 to 12249. [2023-03-31 01:24:59,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12249 states, 9524 states have (on average 1.4865602687946242) internal successors, (14158), 10310 states have internal predecessors, (14158), 1489 states have call successors, (1489), 942 states have call predecessors, (1489), 1235 states have return successors, (2562), 1502 states have call predecessors, (2562), 1485 states have call successors, (2562) [2023-03-31 01:24:59,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12249 states to 12249 states and 18209 transitions. [2023-03-31 01:24:59,044 INFO L78 Accepts]: Start accepts. Automaton has 12249 states and 18209 transitions. Word has length 134 [2023-03-31 01:24:59,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:24:59,045 INFO L495 AbstractCegarLoop]: Abstraction has 12249 states and 18209 transitions. [2023-03-31 01:24:59,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:24:59,046 INFO L276 IsEmpty]: Start isEmpty. Operand 12249 states and 18209 transitions. [2023-03-31 01:24:59,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-03-31 01:24:59,056 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:24:59,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:24:59,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 01:24:59,056 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:24:59,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:24:59,057 INFO L85 PathProgramCache]: Analyzing trace with hash 491498964, now seen corresponding path program 1 times [2023-03-31 01:24:59,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:24:59,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068049883] [2023-03-31 01:24:59,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:24:59,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:24:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:59,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:24:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:59,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:24:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:59,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:24:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:59,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:24:59,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:59,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 01:24:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:59,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:24:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:59,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:24:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:59,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:24:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:59,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:24:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:59,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:24:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:59,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:24:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:59,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:24:59,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:59,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:24:59,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:59,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 01:24:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:24:59,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:24:59,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:24:59,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068049883] [2023-03-31 01:24:59,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068049883] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:24:59,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:24:59,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:24:59,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415140473] [2023-03-31 01:24:59,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:24:59,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:24:59,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:24:59,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:24:59,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:24:59,311 INFO L87 Difference]: Start difference. First operand 12249 states and 18209 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:25:09,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:25:09,379 INFO L93 Difference]: Finished difference Result 51155 states and 78387 transitions. [2023-03-31 01:25:09,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:25:09,380 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 134 [2023-03-31 01:25:09,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:25:09,540 INFO L225 Difference]: With dead ends: 51155 [2023-03-31 01:25:09,540 INFO L226 Difference]: Without dead ends: 39578 [2023-03-31 01:25:09,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-03-31 01:25:09,588 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2652 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3865 mSolverCounterSat, 654 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2686 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 4519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 654 IncrementalHoareTripleChecker+Valid, 3865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-03-31 01:25:09,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2686 Valid, 16 Invalid, 4519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [654 Valid, 3865 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-03-31 01:25:09,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39578 states. [2023-03-31 01:25:15,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39578 to 30907. [2023-03-31 01:25:15,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30907 states, 23988 states have (on average 1.4566033016508255) internal successors, (34941), 25939 states have internal predecessors, (34941), 3636 states have call successors, (3636), 2474 states have call predecessors, (3636), 3282 states have return successors, (7393), 3681 states have call predecessors, (7393), 3632 states have call successors, (7393) [2023-03-31 01:25:15,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30907 states to 30907 states and 45970 transitions. [2023-03-31 01:25:15,595 INFO L78 Accepts]: Start accepts. Automaton has 30907 states and 45970 transitions. Word has length 134 [2023-03-31 01:25:15,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:25:15,595 INFO L495 AbstractCegarLoop]: Abstraction has 30907 states and 45970 transitions. [2023-03-31 01:25:15,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:25:15,595 INFO L276 IsEmpty]: Start isEmpty. Operand 30907 states and 45970 transitions. [2023-03-31 01:25:15,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-03-31 01:25:15,608 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:25:15,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:25:15,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-03-31 01:25:15,609 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:25:15,609 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:25:15,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1375209710, now seen corresponding path program 1 times [2023-03-31 01:25:15,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:25:15,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996308075] [2023-03-31 01:25:15,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:25:15,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:25:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:25:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:25:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:25:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:25:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 01:25:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-03-31 01:25:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:25:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:25:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:25:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:25:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:25:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:25:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:25:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-03-31 01:25:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:15,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:25:15,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:25:15,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996308075] [2023-03-31 01:25:15,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996308075] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:25:15,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:25:15,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:25:15,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798176920] [2023-03-31 01:25:15,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:25:15,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:25:15,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:25:15,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:25:15,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:25:15,847 INFO L87 Difference]: Start difference. First operand 30907 states and 45970 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (19), 7 states have call predecessors, (19), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14)