/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/transmitter.16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:56:02,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:56:02,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:56:02,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:56:02,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:56:02,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:56:02,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:56:02,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:56:02,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:56:02,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:56:02,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:56:02,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:56:02,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:56:02,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:56:02,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:56:02,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:56:02,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:56:02,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:56:02,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:56:02,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:56:02,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:56:02,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:56:02,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:56:02,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:56:02,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:56:02,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:56:02,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:56:02,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:56:02,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:56:02,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:56:02,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:56:02,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:56:02,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:56:02,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:56:02,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:56:02,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:56:02,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:56:02,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:56:02,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:56:02,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:56:02,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:56:02,768 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 04:56:02,790 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:56:02,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:56:02,791 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:56:02,791 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:56:02,792 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:56:02,792 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:56:02,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:56:02,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:56:02,792 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:56:02,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:56:02,793 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:56:02,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:56:02,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:56:02,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:56:02,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:56:02,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:56:02,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:56:02,793 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:56:02,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:56:02,794 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:56:02,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:56:02,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:56:02,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:56:02,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:56:02,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:56:02,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:56:02,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:56:02,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:56:02,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:56:02,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:56:02,795 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:56:02,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:56:02,795 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:56:02,795 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:56:02,795 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:56:02,796 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:56:02,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:56:03,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:56:03,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:56:03,015 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:56:03,017 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:56:03,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.16.cil.c [2023-04-02 04:56:04,332 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:56:04,540 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:56:04,541 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.16.cil.c [2023-04-02 04:56:04,556 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e0c0117d/5d86fa1892d24e609cf23d5825cab93c/FLAG146c066ba [2023-04-02 04:56:04,578 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e0c0117d/5d86fa1892d24e609cf23d5825cab93c [2023-04-02 04:56:04,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:56:04,581 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:56:04,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:56:04,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:56:04,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:56:04,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:56:04" (1/1) ... [2023-04-02 04:56:04,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74590e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:56:04, skipping insertion in model container [2023-04-02 04:56:04,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:56:04" (1/1) ... [2023-04-02 04:56:04,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:56:04,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:56:04,759 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/transmitter.16.cil.c[706,719] [2023-04-02 04:56:04,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:56:04,965 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:56:04,976 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/transmitter.16.cil.c[706,719] [2023-04-02 04:56:05,053 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:56:05,073 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:56:05,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:56:05 WrapperNode [2023-04-02 04:56:05,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:56:05,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:56:05,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:56:05,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:56:05,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:56:05" (1/1) ... [2023-04-02 04:56:05,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:56:05" (1/1) ... [2023-04-02 04:56:05,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:56:05" (1/1) ... [2023-04-02 04:56:05,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:56:05" (1/1) ... [2023-04-02 04:56:05,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:56:05" (1/1) ... [2023-04-02 04:56:05,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:56:05" (1/1) ... [2023-04-02 04:56:05,199 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:56:05" (1/1) ... [2023-04-02 04:56:05,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:56:05" (1/1) ... [2023-04-02 04:56:05,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:56:05,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:56:05,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:56:05,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:56:05,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:56:05" (1/1) ... [2023-04-02 04:56:05,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:56:05,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:56:05,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 04:56:05,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 04:56:05,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:56:05,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:56:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:56:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-04-02 04:56:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2023-04-02 04:56:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2023-04-02 04:56:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2023-04-02 04:56:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2023-04-02 04:56:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2023-04-02 04:56:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2023-04-02 04:56:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2023-04-02 04:56:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2023-04-02 04:56:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2023-04-02 04:56:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2023-04-02 04:56:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2023-04-02 04:56:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2023-04-02 04:56:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2023-04-02 04:56:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2023-04-02 04:56:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit14 [2023-04-02 04:56:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2023-04-02 04:56:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2023-04-02 04:56:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2023-04-02 04:56:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2023-04-02 04:56:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2023-04-02 04:56:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2023-04-02 04:56:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2023-04-02 04:56:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2023-04-02 04:56:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2023-04-02 04:56:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2023-04-02 04:56:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2023-04-02 04:56:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2023-04-02 04:56:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2023-04-02 04:56:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2023-04-02 04:56:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit14_triggered [2023-04-02 04:56:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-04-02 04:56:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2023-04-02 04:56:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-04-02 04:56:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2023-04-02 04:56:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-04-02 04:56:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-04-02 04:56:05,290 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-04-02 04:56:05,290 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-04-02 04:56:05,290 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2023-04-02 04:56:05,290 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2023-04-02 04:56:05,290 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2023-04-02 04:56:05,290 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2023-04-02 04:56:05,290 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2023-04-02 04:56:05,291 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:56:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:56:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:56:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:56:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:56:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:56:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-04-02 04:56:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2023-04-02 04:56:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2023-04-02 04:56:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2023-04-02 04:56:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2023-04-02 04:56:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2023-04-02 04:56:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2023-04-02 04:56:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2023-04-02 04:56:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2023-04-02 04:56:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2023-04-02 04:56:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2023-04-02 04:56:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2023-04-02 04:56:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2023-04-02 04:56:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2023-04-02 04:56:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2023-04-02 04:56:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit14_triggered [2023-04-02 04:56:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-04-02 04:56:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure master [2023-04-02 04:56:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2023-04-02 04:56:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2023-04-02 04:56:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2023-04-02 04:56:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2023-04-02 04:56:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2023-04-02 04:56:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2023-04-02 04:56:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2023-04-02 04:56:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2023-04-02 04:56:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2023-04-02 04:56:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2023-04-02 04:56:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2023-04-02 04:56:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2023-04-02 04:56:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2023-04-02 04:56:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure transmit14 [2023-04-02 04:56:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-04-02 04:56:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2023-04-02 04:56:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-04-02 04:56:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2023-04-02 04:56:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-04-02 04:56:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-04-02 04:56:05,299 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-04-02 04:56:05,299 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2023-04-02 04:56:05,299 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2023-04-02 04:56:05,299 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2023-04-02 04:56:05,299 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2023-04-02 04:56:05,300 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2023-04-02 04:56:05,300 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:56:05,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:56:05,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:56:05,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:56:05,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:56:05,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:56:05,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:56:05,452 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:56:05,454 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:56:06,364 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:56:06,381 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:56:06,381 INFO L302 CfgBuilder]: Removed 18 assume(true) statements. [2023-04-02 04:56:06,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:56:06 BoogieIcfgContainer [2023-04-02 04:56:06,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:56:06,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:56:06,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:56:06,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:56:06,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:56:04" (1/3) ... [2023-04-02 04:56:06,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d386f74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:56:06, skipping insertion in model container [2023-04-02 04:56:06,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:56:05" (2/3) ... [2023-04-02 04:56:06,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d386f74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:56:06, skipping insertion in model container [2023-04-02 04:56:06,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:56:06" (3/3) ... [2023-04-02 04:56:06,395 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.16.cil.c [2023-04-02 04:56:06,410 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:56:06,411 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:56:06,482 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:56:06,489 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;@79151dad, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:56:06,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:56:06,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 526 states, 412 states have (on average 1.6383495145631068) internal successors, (675), 431 states have internal predecessors, (675), 66 states have call successors, (66), 46 states have call predecessors, (66), 46 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2023-04-02 04:56:06,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-04-02 04:56:06,532 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:56:06,533 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:56:06,536 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:56:06,541 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:56:06,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1804074024, now seen corresponding path program 1 times [2023-04-02 04:56:06,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:56:06,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762699040] [2023-04-02 04:56:06,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:56:06,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:56:06,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:56:07,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:56:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:56:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:56:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:56:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 04:56:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:56:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:56:07,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:56:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:56:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:56:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:56:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:56:07,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:56:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:56:07,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:56:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:56:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 04:56:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 04:56:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 04:56:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 04:56:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 04:56:07,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 04:56:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:07,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:56:07,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:56:07,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762699040] [2023-04-02 04:56:07,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762699040] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:56:07,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:56:07,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:56:07,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828335891] [2023-04-02 04:56:07,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:56:07,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:56:07,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:56:07,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:56:07,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:56:07,971 INFO L87 Difference]: Start difference. First operand has 526 states, 412 states have (on average 1.6383495145631068) internal successors, (675), 431 states have internal predecessors, (675), 66 states have call successors, (66), 46 states have call predecessors, (66), 46 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 8 states, 8 states have (on average 25.5) internal successors, (204), 4 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 04:56:13,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:56:13,951 INFO L93 Difference]: Finished difference Result 1368 states and 2255 transitions. [2023-04-02 04:56:13,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 04:56:13,954 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 25.5) internal successors, (204), 4 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 254 [2023-04-02 04:56:13,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:56:13,970 INFO L225 Difference]: With dead ends: 1368 [2023-04-02 04:56:13,971 INFO L226 Difference]: Without dead ends: 851 [2023-04-02 04:56:13,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-04-02 04:56:13,981 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 2901 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 2888 mSolverCounterSat, 686 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2901 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 3574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 686 IncrementalHoareTripleChecker+Valid, 2888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:56:13,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2901 Valid, 42 Invalid, 3574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [686 Valid, 2888 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-04-02 04:56:13,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2023-04-02 04:56:14,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 517. [2023-04-02 04:56:14,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 407 states have (on average 1.5503685503685503) internal successors, (631), 424 states have internal predecessors, (631), 66 states have call successors, (66), 46 states have call predecessors, (66), 43 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-04-02 04:56:14,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 760 transitions. [2023-04-02 04:56:14,292 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 760 transitions. Word has length 254 [2023-04-02 04:56:14,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:56:14,293 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 760 transitions. [2023-04-02 04:56:14,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 25.5) internal successors, (204), 4 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 04:56:14,293 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 760 transitions. [2023-04-02 04:56:14,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-04-02 04:56:14,297 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:56:14,298 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:56:14,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:56:14,298 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:56:14,299 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:56:14,299 INFO L85 PathProgramCache]: Analyzing trace with hash 823323242, now seen corresponding path program 1 times [2023-04-02 04:56:14,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:56:14,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238933069] [2023-04-02 04:56:14,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:56:14,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:56:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:56:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:56:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:56:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:56:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:56:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 04:56:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:56:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:56:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:56:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:56:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:56:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:56:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:56:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:56:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:56:14,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:56:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:56:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 04:56:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 04:56:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 04:56:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 04:56:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 04:56:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 04:56:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:56:14,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:56:14,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238933069] [2023-04-02 04:56:14,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238933069] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:56:14,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:56:14,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:56:14,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934330261] [2023-04-02 04:56:14,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:56:14,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:56:14,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:56:14,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:56:14,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:56:14,966 INFO L87 Difference]: Start difference. First operand 517 states and 760 transitions. Second operand has 8 states, 8 states have (on average 25.5) internal successors, (204), 4 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 04:56:21,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:56:21,002 INFO L93 Difference]: Finished difference Result 1339 states and 2049 transitions. [2023-04-02 04:56:21,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:56:21,003 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 25.5) internal successors, (204), 4 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 254 [2023-04-02 04:56:21,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:56:21,009 INFO L225 Difference]: With dead ends: 1339 [2023-04-02 04:56:21,009 INFO L226 Difference]: Without dead ends: 851 [2023-04-02 04:56:21,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:56:21,013 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2164 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3472 mSolverCounterSat, 469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2164 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 3941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 469 IncrementalHoareTripleChecker+Valid, 3472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-04-02 04:56:21,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2164 Valid, 15 Invalid, 3941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [469 Valid, 3472 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-04-02 04:56:21,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2023-04-02 04:56:21,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 517. [2023-04-02 04:56:21,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 407 states have (on average 1.547911547911548) internal successors, (630), 424 states have internal predecessors, (630), 66 states have call successors, (66), 46 states have call predecessors, (66), 43 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-04-02 04:56:21,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 759 transitions. [2023-04-02 04:56:21,207 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 759 transitions. Word has length 254 [2023-04-02 04:56:21,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:56:21,208 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 759 transitions. [2023-04-02 04:56:21,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 25.5) internal successors, (204), 4 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 04:56:21,208 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 759 transitions. [2023-04-02 04:56:21,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-04-02 04:56:21,211 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:56:21,211 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:56:21,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:56:21,211 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:56:21,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:56:21,212 INFO L85 PathProgramCache]: Analyzing trace with hash -263636308, now seen corresponding path program 1 times [2023-04-02 04:56:21,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:56:21,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831649575] [2023-04-02 04:56:21,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:56:21,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:56:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:21,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:56:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:21,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:56:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:21,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:56:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:21,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:56:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:22,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:56:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:22,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 04:56:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:22,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:56:22,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:22,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:56:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:22,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:56:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:22,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:56:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:22,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:56:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:22,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:56:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:22,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:56:22,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:22,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:56:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:22,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:56:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:22,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:56:22,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:22,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:56:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:22,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 04:56:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:22,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 04:56:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:22,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 04:56:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:22,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 04:56:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:22,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 04:56:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:22,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 04:56:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:22,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:56:22,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:56:22,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831649575] [2023-04-02 04:56:22,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831649575] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:56:22,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:56:22,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 04:56:22,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496327498] [2023-04-02 04:56:22,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:56:22,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 04:56:22,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:56:22,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 04:56:22,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 04:56:22,171 INFO L87 Difference]: Start difference. First operand 517 states and 759 transitions. Second operand has 10 states, 10 states have (on average 20.4) internal successors, (204), 6 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 04:56:27,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:56:27,035 INFO L93 Difference]: Finished difference Result 1336 states and 2052 transitions. [2023-04-02 04:56:27,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 04:56:27,035 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.4) internal successors, (204), 6 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 254 [2023-04-02 04:56:27,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:56:27,040 INFO L225 Difference]: With dead ends: 1336 [2023-04-02 04:56:27,041 INFO L226 Difference]: Without dead ends: 851 [2023-04-02 04:56:27,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-04-02 04:56:27,043 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 4008 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2870 mSolverCounterSat, 960 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4008 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 3830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 960 IncrementalHoareTripleChecker+Valid, 2870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-04-02 04:56:27,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4008 Valid, 16 Invalid, 3830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [960 Valid, 2870 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-04-02 04:56:27,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2023-04-02 04:56:27,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 517. [2023-04-02 04:56:27,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 407 states have (on average 1.5405405405405406) internal successors, (627), 424 states have internal predecessors, (627), 66 states have call successors, (66), 46 states have call predecessors, (66), 43 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-04-02 04:56:27,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 756 transitions. [2023-04-02 04:56:27,253 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 756 transitions. Word has length 254 [2023-04-02 04:56:27,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:56:27,254 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 756 transitions. [2023-04-02 04:56:27,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.4) internal successors, (204), 6 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 04:56:27,254 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 756 transitions. [2023-04-02 04:56:27,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-04-02 04:56:27,257 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:56:27,257 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:56:27,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:56:27,258 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:56:27,258 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:56:27,258 INFO L85 PathProgramCache]: Analyzing trace with hash -182882324, now seen corresponding path program 1 times [2023-04-02 04:56:27,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:56:27,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614517726] [2023-04-02 04:56:27,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:56:27,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:56:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:27,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:56:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:27,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:56:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:27,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:56:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:27,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:56:27,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:27,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:56:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:28,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 04:56:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:28,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:56:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:28,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:56:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:28,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:56:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:28,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:56:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:28,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:56:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:28,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:56:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:28,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:56:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:28,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:56:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:28,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:56:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:28,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:56:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:28,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:56:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:28,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 04:56:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:28,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 04:56:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:28,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 04:56:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:28,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 04:56:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:28,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 04:56:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:28,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 04:56:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:28,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:56:28,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:56:28,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614517726] [2023-04-02 04:56:28,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614517726] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:56:28,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:56:28,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:56:28,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641485890] [2023-04-02 04:56:28,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:56:28,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:56:28,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:56:28,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:56:28,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:56:28,130 INFO L87 Difference]: Start difference. First operand 517 states and 756 transitions. Second operand has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 5 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 04:56:42,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:56:42,076 INFO L93 Difference]: Finished difference Result 3364 states and 5214 transitions. [2023-04-02 04:56:42,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 04:56:42,076 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 5 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 254 [2023-04-02 04:56:42,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:56:42,092 INFO L225 Difference]: With dead ends: 3364 [2023-04-02 04:56:42,092 INFO L226 Difference]: Without dead ends: 2879 [2023-04-02 04:56:42,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-04-02 04:56:42,096 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 6819 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 9216 mSolverCounterSat, 1487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6894 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 10703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1487 IncrementalHoareTripleChecker+Valid, 9216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:56:42,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6894 Valid, 16 Invalid, 10703 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1487 Valid, 9216 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2023-04-02 04:56:42,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2879 states. [2023-04-02 04:56:42,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2879 to 2000. [2023-04-02 04:56:42,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2000 states, 1580 states have (on average 1.509493670886076) internal successors, (2385), 1687 states have internal predecessors, (2385), 237 states have call successors, (237), 155 states have call predecessors, (237), 182 states have return successors, (350), 236 states have call predecessors, (350), 234 states have call successors, (350) [2023-04-02 04:56:42,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2000 states to 2000 states and 2972 transitions. [2023-04-02 04:56:42,800 INFO L78 Accepts]: Start accepts. Automaton has 2000 states and 2972 transitions. Word has length 254 [2023-04-02 04:56:42,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:56:42,800 INFO L495 AbstractCegarLoop]: Abstraction has 2000 states and 2972 transitions. [2023-04-02 04:56:42,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 5 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 04:56:42,801 INFO L276 IsEmpty]: Start isEmpty. Operand 2000 states and 2972 transitions. [2023-04-02 04:56:42,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-04-02 04:56:42,805 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:56:42,805 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:56:42,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:56:42,806 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:56:42,806 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:56:42,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1004095018, now seen corresponding path program 1 times [2023-04-02 04:56:42,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:56:42,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255042180] [2023-04-02 04:56:42,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:56:42,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:56:42,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:56:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:56:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:56:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:56:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:56:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 04:56:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:56:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:56:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:56:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:56:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:56:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:56:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:56:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:56:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:56:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:56:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:56:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 04:56:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 04:56:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 04:56:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 04:56:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 04:56:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 04:56:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:43,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:56:43,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:56:43,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255042180] [2023-04-02 04:56:43,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255042180] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:56:43,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:56:43,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 04:56:43,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636346030] [2023-04-02 04:56:43,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:56:43,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 04:56:43,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:56:43,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 04:56:43,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 04:56:43,506 INFO L87 Difference]: Start difference. First operand 2000 states and 2972 transitions. Second operand has 10 states, 10 states have (on average 20.4) internal successors, (204), 6 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 04:56:49,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:56:49,201 INFO L93 Difference]: Finished difference Result 4597 states and 6959 transitions. [2023-04-02 04:56:49,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 04:56:49,201 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 20.4) internal successors, (204), 6 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 254 [2023-04-02 04:56:49,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:56:49,217 INFO L225 Difference]: With dead ends: 4597 [2023-04-02 04:56:49,217 INFO L226 Difference]: Without dead ends: 2739 [2023-04-02 04:56:49,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-04-02 04:56:49,224 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2636 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 3481 mSolverCounterSat, 565 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2636 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 4046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 565 IncrementalHoareTripleChecker+Valid, 3481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:56:49,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2636 Valid, 17 Invalid, 4046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [565 Valid, 3481 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-04-02 04:56:49,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2739 states. [2023-04-02 04:56:50,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2739 to 1998. [2023-04-02 04:56:50,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1998 states, 1578 states have (on average 1.5038022813688212) internal successors, (2373), 1685 states have internal predecessors, (2373), 237 states have call successors, (237), 155 states have call predecessors, (237), 182 states have return successors, (350), 236 states have call predecessors, (350), 234 states have call successors, (350) [2023-04-02 04:56:50,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1998 states to 1998 states and 2960 transitions. [2023-04-02 04:56:50,056 INFO L78 Accepts]: Start accepts. Automaton has 1998 states and 2960 transitions. Word has length 254 [2023-04-02 04:56:50,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:56:50,057 INFO L495 AbstractCegarLoop]: Abstraction has 1998 states and 2960 transitions. [2023-04-02 04:56:50,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 20.4) internal successors, (204), 6 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 04:56:50,058 INFO L276 IsEmpty]: Start isEmpty. Operand 1998 states and 2960 transitions. [2023-04-02 04:56:50,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-04-02 04:56:50,064 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:56:50,064 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:56:50,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:56:50,065 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:56:50,065 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:56:50,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1869171376, now seen corresponding path program 1 times [2023-04-02 04:56:50,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:56:50,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874808448] [2023-04-02 04:56:50,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:56:50,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:56:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:56:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:56:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:56:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:56:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:56:50,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 04:56:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:56:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:56:50,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:56:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:56:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:56:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:56:50,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:56:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:56:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:56:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:56:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:56:50,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 04:56:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 04:56:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 04:56:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 04:56:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 04:56:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 04:56:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:50,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:56:50,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:56:50,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874808448] [2023-04-02 04:56:50,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874808448] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:56:50,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:56:50,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:56:50,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560331338] [2023-04-02 04:56:50,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:56:50,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:56:50,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:56:50,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:56:50,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:56:50,807 INFO L87 Difference]: Start difference. First operand 1998 states and 2960 transitions. Second operand has 8 states, 8 states have (on average 25.5) internal successors, (204), 4 states have internal predecessors, (204), 4 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2023-04-02 04:56:59,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:56:59,894 INFO L93 Difference]: Finished difference Result 6717 states and 10371 transitions. [2023-04-02 04:56:59,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 04:56:59,895 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 25.5) internal successors, (204), 4 states have internal predecessors, (204), 4 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 254 [2023-04-02 04:56:59,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:56:59,916 INFO L225 Difference]: With dead ends: 6717 [2023-04-02 04:56:59,916 INFO L226 Difference]: Without dead ends: 4754 [2023-04-02 04:56:59,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-04-02 04:56:59,926 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 5343 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 5722 mSolverCounterSat, 1101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5343 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 6823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1101 IncrementalHoareTripleChecker+Valid, 5722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:56:59,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5343 Valid, 15 Invalid, 6823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1101 Valid, 5722 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-04-02 04:56:59,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4754 states. [2023-04-02 04:57:01,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4754 to 3569. [2023-04-02 04:57:01,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3569 states, 2813 states have (on average 1.495556345538571) internal successors, (4207), 3038 states have internal predecessors, (4207), 422 states have call successors, (422), 266 states have call predecessors, (422), 333 states have return successors, (632), 415 states have call predecessors, (632), 419 states have call successors, (632) [2023-04-02 04:57:01,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3569 states to 3569 states and 5261 transitions. [2023-04-02 04:57:01,252 INFO L78 Accepts]: Start accepts. Automaton has 3569 states and 5261 transitions. Word has length 254 [2023-04-02 04:57:01,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:57:01,252 INFO L495 AbstractCegarLoop]: Abstraction has 3569 states and 5261 transitions. [2023-04-02 04:57:01,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 25.5) internal successors, (204), 4 states have internal predecessors, (204), 4 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2023-04-02 04:57:01,253 INFO L276 IsEmpty]: Start isEmpty. Operand 3569 states and 5261 transitions. [2023-04-02 04:57:01,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-04-02 04:57:01,255 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:57:01,255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:57:01,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 04:57:01,256 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:57:01,256 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:57:01,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1637077101, now seen corresponding path program 1 times [2023-04-02 04:57:01,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:57:01,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539083326] [2023-04-02 04:57:01,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:57:01,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:57:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:01,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:57:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:01,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:57:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:01,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:57:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:01,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:57:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:01,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:57:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:01,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 04:57:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:02,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:02,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:02,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:57:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:02,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:57:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:02,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:57:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:02,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:57:02,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:02,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:57:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:02,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:57:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:02,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:57:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:02,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:57:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:02,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:57:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:02,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:57:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:02,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 04:57:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:02,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 04:57:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:02,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 04:57:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:02,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 04:57:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:02,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 04:57:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:02,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 04:57:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:02,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:57:02,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:57:02,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539083326] [2023-04-02 04:57:02,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539083326] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:57:02,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:57:02,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:57:02,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090365517] [2023-04-02 04:57:02,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:57:02,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:57:02,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:57:02,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:57:02,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:57:02,066 INFO L87 Difference]: Start difference. First operand 3569 states and 5261 transitions. Second operand has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 5 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 04:57:17,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:57:17,876 INFO L93 Difference]: Finished difference Result 11959 states and 18201 transitions. [2023-04-02 04:57:17,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 04:57:17,878 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 5 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 254 [2023-04-02 04:57:17,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:57:17,919 INFO L225 Difference]: With dead ends: 11959 [2023-04-02 04:57:17,919 INFO L226 Difference]: Without dead ends: 8956 [2023-04-02 04:57:17,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-04-02 04:57:17,932 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 4398 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 10319 mSolverCounterSat, 1000 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4473 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 11319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1000 IncrementalHoareTripleChecker+Valid, 10319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:57:17,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4473 Valid, 16 Invalid, 11319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1000 Valid, 10319 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2023-04-02 04:57:17,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8956 states. [2023-04-02 04:57:20,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8956 to 6509. [2023-04-02 04:57:20,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6509 states, 5143 states have (on average 1.4929029749173635) internal successors, (7678), 5548 states have internal predecessors, (7678), 756 states have call successors, (756), 484 states have call predecessors, (756), 609 states have return successors, (1154), 747 states have call predecessors, (1154), 753 states have call successors, (1154) [2023-04-02 04:57:20,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6509 states to 6509 states and 9588 transitions. [2023-04-02 04:57:20,733 INFO L78 Accepts]: Start accepts. Automaton has 6509 states and 9588 transitions. Word has length 254 [2023-04-02 04:57:20,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:57:20,733 INFO L495 AbstractCegarLoop]: Abstraction has 6509 states and 9588 transitions. [2023-04-02 04:57:20,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 5 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 04:57:20,734 INFO L276 IsEmpty]: Start isEmpty. Operand 6509 states and 9588 transitions. [2023-04-02 04:57:20,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-04-02 04:57:20,737 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:57:20,737 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:57:20,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 04:57:20,738 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:57:20,738 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:57:20,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1580211755, now seen corresponding path program 1 times [2023-04-02 04:57:20,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:57:20,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758774777] [2023-04-02 04:57:20,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:57:20,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:57:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:57:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:57:21,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:57:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:57:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:57:21,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 04:57:21,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:57:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:57:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:57:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:57:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:57:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:57:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:57:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:57:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:57:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:57:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 04:57:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 04:57:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 04:57:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 04:57:21,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 04:57:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 04:57:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:21,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:57:21,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:57:21,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758774777] [2023-04-02 04:57:21,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758774777] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:57:21,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:57:21,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:57:21,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65202033] [2023-04-02 04:57:21,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:57:21,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:57:21,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:57:21,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:57:21,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:57:21,529 INFO L87 Difference]: Start difference. First operand 6509 states and 9588 transitions. Second operand has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 5 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 04:57:40,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:57:40,364 INFO L93 Difference]: Finished difference Result 22778 states and 34571 transitions. [2023-04-02 04:57:40,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 04:57:40,365 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 5 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 254 [2023-04-02 04:57:40,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:57:40,443 INFO L225 Difference]: With dead ends: 22778 [2023-04-02 04:57:40,443 INFO L226 Difference]: Without dead ends: 16888 [2023-04-02 04:57:40,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-04-02 04:57:40,471 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 4394 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 10303 mSolverCounterSat, 1003 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4470 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 11306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1003 IncrementalHoareTripleChecker+Valid, 10303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:57:40,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4470 Valid, 16 Invalid, 11306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1003 Valid, 10303 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2023-04-02 04:57:40,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16888 states. [2023-04-02 04:57:44,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16888 to 12388. [2023-04-02 04:57:44,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12388 states, 9802 states have (on average 1.4911242603550297) internal successors, (14616), 10567 states have internal predecessors, (14616), 1424 states have call successors, (1424), 920 states have call predecessors, (1424), 1161 states have return successors, (2210), 1411 states have call predecessors, (2210), 1421 states have call successors, (2210) [2023-04-02 04:57:44,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12388 states to 12388 states and 18250 transitions. [2023-04-02 04:57:44,774 INFO L78 Accepts]: Start accepts. Automaton has 12388 states and 18250 transitions. Word has length 254 [2023-04-02 04:57:44,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:57:44,774 INFO L495 AbstractCegarLoop]: Abstraction has 12388 states and 18250 transitions. [2023-04-02 04:57:44,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 5 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 04:57:44,774 INFO L276 IsEmpty]: Start isEmpty. Operand 12388 states and 18250 transitions. [2023-04-02 04:57:44,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-04-02 04:57:44,778 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:57:44,779 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:57:44,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 04:57:44,779 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:57:44,779 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:57:44,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1578377389, now seen corresponding path program 1 times [2023-04-02 04:57:44,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:57:44,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312787175] [2023-04-02 04:57:44,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:57:44,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:57:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:57:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:57:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:57:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:57:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:57:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 04:57:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:57:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:57:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:57:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:57:45,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:57:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:57:45,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:57:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:57:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:57:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:57:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 04:57:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 04:57:45,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 04:57:45,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 04:57:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 04:57:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 04:57:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:45,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:57:45,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:57:45,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312787175] [2023-04-02 04:57:45,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312787175] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:57:45,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:57:45,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:57:45,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611014677] [2023-04-02 04:57:45,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:57:45,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:57:45,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:57:45,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:57:45,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:57:45,507 INFO L87 Difference]: Start difference. First operand 12388 states and 18250 transitions. Second operand has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 5 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 04:58:11,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:58:11,280 INFO L93 Difference]: Finished difference Result 44405 states and 67349 transitions. [2023-04-02 04:58:11,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 04:58:11,281 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 5 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 254 [2023-04-02 04:58:11,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:58:11,424 INFO L225 Difference]: With dead ends: 44405 [2023-04-02 04:58:11,424 INFO L226 Difference]: Without dead ends: 32736 [2023-04-02 04:58:11,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-04-02 04:58:11,481 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 4382 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 11062 mSolverCounterSat, 944 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4458 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 12006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 944 IncrementalHoareTripleChecker+Valid, 11062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2023-04-02 04:58:11,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4458 Valid, 16 Invalid, 12006 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [944 Valid, 11062 Invalid, 0 Unknown, 0 Unchecked, 12.9s Time] [2023-04-02 04:58:11,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32736 states. [2023-04-02 04:58:20,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32736 to 24151. [2023-04-02 04:58:20,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24151 states, 19125 states have (on average 1.4898823529411764) internal successors, (28494), 20610 states have internal predecessors, (28494), 2760 states have call successors, (2760), 1792 states have call predecessors, (2760), 2265 states have return successors, (4358), 2739 states have call predecessors, (4358), 2757 states have call successors, (4358) [2023-04-02 04:58:20,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24151 states to 24151 states and 35612 transitions. [2023-04-02 04:58:20,275 INFO L78 Accepts]: Start accepts. Automaton has 24151 states and 35612 transitions. Word has length 254 [2023-04-02 04:58:20,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:58:20,276 INFO L495 AbstractCegarLoop]: Abstraction has 24151 states and 35612 transitions. [2023-04-02 04:58:20,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 5 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 04:58:20,276 INFO L276 IsEmpty]: Start isEmpty. Operand 24151 states and 35612 transitions. [2023-04-02 04:58:20,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-04-02 04:58:20,282 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:58:20,282 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:58:20,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 04:58:20,282 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:58:20,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:58:20,283 INFO L85 PathProgramCache]: Analyzing trace with hash 608486891, now seen corresponding path program 1 times [2023-04-02 04:58:20,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:58:20,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910443798] [2023-04-02 04:58:20,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:58:20,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:58:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:58:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:58:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:58:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:58:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:58:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 04:58:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:20,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:58:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:58:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:58:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:58:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:58:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:58:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:58:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:58:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:58:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:58:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 04:58:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 04:58:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 04:58:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 04:58:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 04:58:20,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 04:58:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:20,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:58:20,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:58:20,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910443798] [2023-04-02 04:58:20,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910443798] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:58:20,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:58:20,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:58:20,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643898828] [2023-04-02 04:58:20,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:58:20,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:58:20,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:58:20,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:58:20,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:58:20,977 INFO L87 Difference]: Start difference. First operand 24151 states and 35612 transitions. Second operand has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 5 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 04:58:57,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:58:57,809 INFO L93 Difference]: Finished difference Result 87640 states and 133059 transitions. [2023-04-02 04:58:57,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 04:58:57,810 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 5 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 254 [2023-04-02 04:58:57,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:58:58,142 INFO L225 Difference]: With dead ends: 87640 [2023-04-02 04:58:58,142 INFO L226 Difference]: Without dead ends: 64400 [2023-04-02 04:58:58,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-04-02 04:58:58,211 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3980 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 10807 mSolverCounterSat, 844 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4057 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 11651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 844 IncrementalHoareTripleChecker+Valid, 10807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:58:58,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4057 Valid, 17 Invalid, 11651 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [844 Valid, 10807 Invalid, 0 Unknown, 0 Unchecked, 12.6s Time] [2023-04-02 04:58:58,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64400 states. [2023-04-02 04:59:14,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64400 to 47690. [2023-04-02 04:59:14,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47690 states, 37784 states have (on average 1.4889900486978616) internal successors, (56260), 40709 states have internal predecessors, (56260), 5432 states have call successors, (5432), 3536 states have call predecessors, (5432), 4473 states have return successors, (8762), 5395 states have call predecessors, (8762), 5429 states have call successors, (8762) [2023-04-02 04:59:15,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47690 states to 47690 states and 70454 transitions. [2023-04-02 04:59:15,134 INFO L78 Accepts]: Start accepts. Automaton has 47690 states and 70454 transitions. Word has length 254 [2023-04-02 04:59:15,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:59:15,135 INFO L495 AbstractCegarLoop]: Abstraction has 47690 states and 70454 transitions. [2023-04-02 04:59:15,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 5 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 04:59:15,135 INFO L276 IsEmpty]: Start isEmpty. Operand 47690 states and 70454 transitions. [2023-04-02 04:59:15,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-04-02 04:59:15,145 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:59:15,145 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:59:15,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 04:59:15,145 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:59:15,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:59:15,146 INFO L85 PathProgramCache]: Analyzing trace with hash 854294765, now seen corresponding path program 1 times [2023-04-02 04:59:15,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:59:15,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782914802] [2023-04-02 04:59:15,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:59:15,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:59:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:59:15,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:59:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:59:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:59:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:59:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 04:59:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:59:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:59:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:59:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:59:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:59:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:59:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:59:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:59:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:59:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:59:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:59:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 04:59:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 04:59:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 04:59:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 04:59:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-02 04:59:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-02 04:59:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:59:15,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:59:15,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:59:15,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782914802] [2023-04-02 04:59:15,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782914802] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:59:15,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:59:15,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:59:15,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543698081] [2023-04-02 04:59:15,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:59:15,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:59:15,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:59:15,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:59:15,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:59:15,897 INFO L87 Difference]: Start difference. First operand 47690 states and 70454 transitions. Second operand has 9 states, 9 states have (on average 22.666666666666668) internal successors, (204), 5 states have internal predecessors, (204), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23)