/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.10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:55:28,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:55:28,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:55:28,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:55:28,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:55:28,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:55:28,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:55:28,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:55:28,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:55:28,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:55:28,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:55:28,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:55:28,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:55:28,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:55:28,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:55:28,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:55:28,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:55:28,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:55:28,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:55:28,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:55:28,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:55:28,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:55:28,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:55:28,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:55:28,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:55:28,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:55:28,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:55:28,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:55:28,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:55:28,563 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:55:28,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:55:28,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:55:28,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:55:28,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:55:28,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:55:28,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:55:28,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:55:28,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:55:28,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:55:28,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:55:28,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:55:28,570 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 04:55:28,587 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:55:28,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:55:28,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:55:28,588 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:55:28,589 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:55:28,589 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:55:28,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:55:28,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:55:28,589 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:55:28,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:55:28,590 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:55:28,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:55:28,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:55:28,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:55:28,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:55:28,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:55:28,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:55:28,591 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:55:28,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:55:28,591 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:55:28,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:55:28,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:55:28,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:55:28,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:55:28,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:55:28,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:55:28,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:55:28,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:55:28,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:55:28,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:55:28,593 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:55:28,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:55:28,593 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:55:28,593 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:55:28,594 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:55:28,594 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:55:28,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:55:28,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:55:28,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:55:28,846 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:55:28,846 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:55:28,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.10.cil.c [2023-04-02 04:55:29,999 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:55:30,224 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:55:30,224 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.10.cil.c [2023-04-02 04:55:30,241 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4167af11/3b9dfd3c58534974a8460fc8b852d8aa/FLAG7432471f6 [2023-04-02 04:55:30,254 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4167af11/3b9dfd3c58534974a8460fc8b852d8aa [2023-04-02 04:55:30,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:55:30,258 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:55:30,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:55:30,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:55:30,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:55:30,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:55:30" (1/1) ... [2023-04-02 04:55:30,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69408404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:55:30, skipping insertion in model container [2023-04-02 04:55:30,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:55:30" (1/1) ... [2023-04-02 04:55:30,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:55:30,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:55:30,419 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.10.cil.c[706,719] [2023-04-02 04:55:30,549 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:55:30,564 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:55:30,578 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.10.cil.c[706,719] [2023-04-02 04:55:30,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:55:30,645 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:55:30,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:55:30 WrapperNode [2023-04-02 04:55:30,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:55:30,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:55:30,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:55:30,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:55:30,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:55:30" (1/1) ... [2023-04-02 04:55:30,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:55:30" (1/1) ... [2023-04-02 04:55:30,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:55:30" (1/1) ... [2023-04-02 04:55:30,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:55:30" (1/1) ... [2023-04-02 04:55:30,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:55:30" (1/1) ... [2023-04-02 04:55:30,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:55:30" (1/1) ... [2023-04-02 04:55:30,759 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:55:30" (1/1) ... [2023-04-02 04:55:30,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:55:30" (1/1) ... [2023-04-02 04:55:30,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:55:30,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:55:30,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:55:30,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:55:30,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:55:30" (1/1) ... [2023-04-02 04:55:30,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:55:30,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:55:30,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 04:55:30,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 04:55:30,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:55:30,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:55:30,857 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:55:30,857 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-04-02 04:55:30,857 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2023-04-02 04:55:30,857 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2023-04-02 04:55:30,858 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2023-04-02 04:55:30,858 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2023-04-02 04:55:30,858 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2023-04-02 04:55:30,858 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2023-04-02 04:55:30,858 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2023-04-02 04:55:30,858 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2023-04-02 04:55:30,858 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2023-04-02 04:55:30,858 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2023-04-02 04:55:30,859 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2023-04-02 04:55:30,859 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2023-04-02 04:55:30,859 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2023-04-02 04:55:30,859 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2023-04-02 04:55:30,859 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2023-04-02 04:55:30,859 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2023-04-02 04:55:30,859 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2023-04-02 04:55:30,859 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2023-04-02 04:55:30,859 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2023-04-02 04:55:30,860 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2023-04-02 04:55:30,860 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2023-04-02 04:55:30,860 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2023-04-02 04:55:30,860 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-04-02 04:55:30,860 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2023-04-02 04:55:30,860 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-04-02 04:55:30,860 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2023-04-02 04:55:30,860 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-04-02 04:55:30,860 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-04-02 04:55:30,860 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-04-02 04:55:30,861 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-04-02 04:55:30,861 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2023-04-02 04:55:30,861 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2023-04-02 04:55:30,861 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2023-04-02 04:55:30,861 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2023-04-02 04:55:30,861 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2023-04-02 04:55:30,861 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:55:30,861 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:55:30,861 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:55:30,862 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:55:30,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:55:30,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:55:30,862 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-04-02 04:55:30,862 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2023-04-02 04:55:30,862 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2023-04-02 04:55:30,862 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2023-04-02 04:55:30,862 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2023-04-02 04:55:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2023-04-02 04:55:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2023-04-02 04:55:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2023-04-02 04:55:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2023-04-02 04:55:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2023-04-02 04:55:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2023-04-02 04:55:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2023-04-02 04:55:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-04-02 04:55:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure master [2023-04-02 04:55:30,864 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2023-04-02 04:55:30,864 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2023-04-02 04:55:30,864 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2023-04-02 04:55:30,864 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2023-04-02 04:55:30,864 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2023-04-02 04:55:30,864 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2023-04-02 04:55:30,864 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2023-04-02 04:55:30,864 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2023-04-02 04:55:30,864 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2023-04-02 04:55:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2023-04-02 04:55:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-04-02 04:55:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2023-04-02 04:55:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-04-02 04:55:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2023-04-02 04:55:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-04-02 04:55:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-04-02 04:55:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-04-02 04:55:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2023-04-02 04:55:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2023-04-02 04:55:30,866 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2023-04-02 04:55:30,866 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2023-04-02 04:55:30,866 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2023-04-02 04:55:30,866 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:55:30,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:55:30,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:55:30,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:55:30,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:55:30,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:55:30,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:55:30,994 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:55:30,997 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:55:31,651 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:55:31,661 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:55:31,661 INFO L302 CfgBuilder]: Removed 14 assume(true) statements. [2023-04-02 04:55:31,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:55:31 BoogieIcfgContainer [2023-04-02 04:55:31,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:55:31,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:55:31,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:55:31,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:55:31,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:55:30" (1/3) ... [2023-04-02 04:55:31,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4073fc15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:55:31, skipping insertion in model container [2023-04-02 04:55:31,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:55:30" (2/3) ... [2023-04-02 04:55:31,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4073fc15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:55:31, skipping insertion in model container [2023-04-02 04:55:31,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:55:31" (3/3) ... [2023-04-02 04:55:31,677 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.10.cil.c [2023-04-02 04:55:31,692 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:55:31,692 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:55:31,743 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:55:31,749 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;@60be44c1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:55:31,749 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:55:31,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 409 states, 314 states have (on average 1.6210191082802548) internal successors, (509), 329 states have internal predecessors, (509), 55 states have call successors, (55), 38 states have call predecessors, (55), 38 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-04-02 04:55:31,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-04-02 04:55:31,775 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:55:31,776 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] [2023-04-02 04:55:31,777 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:55:31,782 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:55:31,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1181210965, now seen corresponding path program 1 times [2023-04-02 04:55:31,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:55:31,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875981623] [2023-04-02 04:55:31,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:55:31,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:55:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:32,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:55:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:32,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:55:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:32,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:55:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:32,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:55:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:32,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:55:32,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:32,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:55:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:32,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:55:32,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:32,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:55:32,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:32,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:55:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:32,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:55:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:32,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:55:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:32,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:55:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:32,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:55:32,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:32,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:55:32,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:32,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:55:32,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:32,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:55:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:32,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:55:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:32,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 04:55:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:32,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 04:55:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:32,822 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 04:55:32,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:55:32,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875981623] [2023-04-02 04:55:32,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875981623] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:55:32,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:55:32,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:55:32,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485134177] [2023-04-02 04:55:32,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:55:32,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:55:32,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:55:32,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:55:32,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:55:32,855 INFO L87 Difference]: Start difference. First operand has 409 states, 314 states have (on average 1.6210191082802548) internal successors, (509), 329 states have internal predecessors, (509), 55 states have call successors, (55), 38 states have call predecessors, (55), 38 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 8 states, 8 states have (on average 20.875) internal successors, (167), 4 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:55:36,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:55:36,991 INFO L93 Difference]: Finished difference Result 1055 states and 1720 transitions. [2023-04-02 04:55:36,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 04:55:36,993 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 4 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 210 [2023-04-02 04:55:36,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:55:37,009 INFO L225 Difference]: With dead ends: 1055 [2023-04-02 04:55:37,009 INFO L226 Difference]: Without dead ends: 655 [2023-04-02 04:55:37,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-04-02 04:55:37,018 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 2178 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 2362 mSolverCounterSat, 556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2178 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 2918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 556 IncrementalHoareTripleChecker+Valid, 2362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-04-02 04:55:37,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2178 Valid, 31 Invalid, 2918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [556 Valid, 2362 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-04-02 04:55:37,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2023-04-02 04:55:37,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 400. [2023-04-02 04:55:37,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 309 states have (on average 1.5307443365695792) internal successors, (473), 322 states have internal predecessors, (473), 55 states have call successors, (55), 38 states have call predecessors, (55), 35 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-04-02 04:55:37,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 580 transitions. [2023-04-02 04:55:37,250 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 580 transitions. Word has length 210 [2023-04-02 04:55:37,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:55:37,251 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 580 transitions. [2023-04-02 04:55:37,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 4 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:55:37,251 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 580 transitions. [2023-04-02 04:55:37,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-04-02 04:55:37,257 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:55:37,257 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] [2023-04-02 04:55:37,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:55:37,258 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:55:37,258 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:55:37,258 INFO L85 PathProgramCache]: Analyzing trace with hash 893022189, now seen corresponding path program 1 times [2023-04-02 04:55:37,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:55:37,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398827112] [2023-04-02 04:55:37,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:55:37,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:55:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:37,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:55:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:37,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:55:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:37,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:55:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:37,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:55:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:37,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:55:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:37,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:55:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:37,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:55:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:37,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:55:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:37,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:55:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:37,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:55:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:37,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:55:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:37,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:55:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:37,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:55:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:37,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:55:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:37,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:55:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:37,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:55:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:37,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:55:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:37,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 04:55:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:37,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 04:55:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:37,946 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 04:55:37,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:55:37,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398827112] [2023-04-02 04:55:37,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398827112] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:55:37,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:55:37,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:55:37,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080180123] [2023-04-02 04:55:37,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:55:37,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:55:37,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:55:37,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:55:37,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:55:37,950 INFO L87 Difference]: Start difference. First operand 400 states and 580 transitions. Second operand has 8 states, 8 states have (on average 20.875) internal successors, (167), 4 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:55:43,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:55:43,435 INFO L93 Difference]: Finished difference Result 1625 states and 2520 transitions. [2023-04-02 04:55:43,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 04:55:43,438 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 4 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 210 [2023-04-02 04:55:43,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:55:43,446 INFO L225 Difference]: With dead ends: 1625 [2023-04-02 04:55:43,446 INFO L226 Difference]: Without dead ends: 1253 [2023-04-02 04:55:43,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-04-02 04:55:43,451 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2602 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3501 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2652 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 4021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 3501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:55:43,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2652 Valid, 16 Invalid, 4021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 3501 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-04-02 04:55:43,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2023-04-02 04:55:43,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 782. [2023-04-02 04:55:43,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 617 states have (on average 1.5413290113452187) internal successors, (951), 643 states have internal predecessors, (951), 97 states have call successors, (97), 68 states have call predecessors, (97), 67 states have return successors, (98), 95 states have call predecessors, (98), 94 states have call successors, (98) [2023-04-02 04:55:43,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1146 transitions. [2023-04-02 04:55:43,664 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1146 transitions. Word has length 210 [2023-04-02 04:55:43,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:55:43,664 INFO L495 AbstractCegarLoop]: Abstraction has 782 states and 1146 transitions. [2023-04-02 04:55:43,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.875) internal successors, (167), 4 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:55:43,665 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1146 transitions. [2023-04-02 04:55:43,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-04-02 04:55:43,671 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:55:43,671 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] [2023-04-02 04:55:43,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:55:43,671 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:55:43,672 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:55:43,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1809262509, now seen corresponding path program 1 times [2023-04-02 04:55:43,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:55:43,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752132730] [2023-04-02 04:55:43,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:55:43,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:55:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:44,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:55:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:44,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:55:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:44,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:55:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:44,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:55:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:44,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:55:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:44,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:55:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:44,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:55:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:44,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:55:44,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:44,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:55:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:44,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:55:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:44,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:55:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:44,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:55:44,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:44,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:55:44,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:44,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:55:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:44,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:55:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:44,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:55:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:44,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:55:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:44,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 04:55:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:44,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 04:55:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:44,280 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 04:55:44,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:55:44,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752132730] [2023-04-02 04:55:44,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752132730] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:55:44,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:55:44,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 04:55:44,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722363459] [2023-04-02 04:55:44,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:55:44,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 04:55:44,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:55:44,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 04:55:44,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 04:55:44,283 INFO L87 Difference]: Start difference. First operand 782 states and 1146 transitions. Second operand has 10 states, 10 states have (on average 16.7) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:55:47,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:55:47,690 INFO L93 Difference]: Finished difference Result 1978 states and 2999 transitions. [2023-04-02 04:55:47,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 04:55:47,691 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 210 [2023-04-02 04:55:47,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:55:47,699 INFO L225 Difference]: With dead ends: 1978 [2023-04-02 04:55:47,699 INFO L226 Difference]: Without dead ends: 1224 [2023-04-02 04:55:47,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-04-02 04:55:47,708 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3006 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2169 mSolverCounterSat, 774 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3006 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 2943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 774 IncrementalHoareTripleChecker+Valid, 2169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-04-02 04:55:47,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3006 Valid, 16 Invalid, 2943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [774 Valid, 2169 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-04-02 04:55:47,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2023-04-02 04:55:47,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 782. [2023-04-02 04:55:47,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 617 states have (on average 1.5299837925445705) internal successors, (944), 643 states have internal predecessors, (944), 97 states have call successors, (97), 68 states have call predecessors, (97), 67 states have return successors, (98), 95 states have call predecessors, (98), 94 states have call successors, (98) [2023-04-02 04:55:47,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1139 transitions. [2023-04-02 04:55:47,944 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1139 transitions. Word has length 210 [2023-04-02 04:55:47,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:55:47,945 INFO L495 AbstractCegarLoop]: Abstraction has 782 states and 1139 transitions. [2023-04-02 04:55:47,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:55:47,945 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1139 transitions. [2023-04-02 04:55:47,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-04-02 04:55:47,947 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:55:47,947 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] [2023-04-02 04:55:47,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:55:47,948 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:55:47,948 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:55:47,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1763411987, now seen corresponding path program 1 times [2023-04-02 04:55:47,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:55:47,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590635707] [2023-04-02 04:55:47,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:55:47,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:55:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:48,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:55:48,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:48,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:55:48,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:48,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:55:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:48,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:55:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:48,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:55:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:48,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:55:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:48,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:55:48,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:48,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:55:48,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:48,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:55:48,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:48,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:55:48,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:48,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:55:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:48,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:55:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:48,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:55:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:48,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:55:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:48,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:55:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:48,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:55:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:48,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:55:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:48,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 04:55:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:48,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 04:55:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:48,475 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 04:55:48,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:55:48,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590635707] [2023-04-02 04:55:48,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590635707] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:55:48,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:55:48,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 04:55:48,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070131676] [2023-04-02 04:55:48,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:55:48,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 04:55:48,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:55:48,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 04:55:48,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 04:55:48,478 INFO L87 Difference]: Start difference. First operand 782 states and 1139 transitions. Second operand has 10 states, 10 states have (on average 16.7) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:55:51,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:55:51,884 INFO L93 Difference]: Finished difference Result 1975 states and 2978 transitions. [2023-04-02 04:55:51,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 04:55:51,885 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 210 [2023-04-02 04:55:51,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:55:51,890 INFO L225 Difference]: With dead ends: 1975 [2023-04-02 04:55:51,890 INFO L226 Difference]: Without dead ends: 1221 [2023-04-02 04:55:51,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-04-02 04:55:51,893 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3103 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2343 mSolverCounterSat, 820 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3103 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 3163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 820 IncrementalHoareTripleChecker+Valid, 2343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-04-02 04:55:51,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3103 Valid, 15 Invalid, 3163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [820 Valid, 2343 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-04-02 04:55:51,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2023-04-02 04:55:52,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 782. [2023-04-02 04:55:52,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 617 states have (on average 1.5186385737439223) internal successors, (937), 643 states have internal predecessors, (937), 97 states have call successors, (97), 68 states have call predecessors, (97), 67 states have return successors, (98), 95 states have call predecessors, (98), 94 states have call successors, (98) [2023-04-02 04:55:52,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1132 transitions. [2023-04-02 04:55:52,083 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1132 transitions. Word has length 210 [2023-04-02 04:55:52,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:55:52,084 INFO L495 AbstractCegarLoop]: Abstraction has 782 states and 1132 transitions. [2023-04-02 04:55:52,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:55:52,084 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1132 transitions. [2023-04-02 04:55:52,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-04-02 04:55:52,086 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:55:52,087 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] [2023-04-02 04:55:52,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:55:52,087 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:55:52,087 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:55:52,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1463017555, now seen corresponding path program 1 times [2023-04-02 04:55:52,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:55:52,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957525856] [2023-04-02 04:55:52,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:55:52,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:55:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:52,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:55:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:52,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:55:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:52,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:55:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:52,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:55:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:52,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:55:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:52,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:55:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:52,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:55:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:52,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:55:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:52,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:55:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:52,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:55:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:52,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:55:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:52,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:55:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:52,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:55:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:52,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:55:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:52,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:55:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:52,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:55:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:52,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:55:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:52,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 04:55:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:52,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 04:55:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:55:52,739 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 04:55:52,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:55:52,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957525856] [2023-04-02 04:55:52,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957525856] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:55:52,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:55:52,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:55:52,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648256084] [2023-04-02 04:55:52,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:55:52,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:55:52,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:55:52,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:55:52,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:55:52,743 INFO L87 Difference]: Start difference. First operand 782 states and 1132 transitions. Second operand has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:56:03,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:56:03,029 INFO L93 Difference]: Finished difference Result 3539 states and 5334 transitions. [2023-04-02 04:56:03,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 04:56:03,030 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 210 [2023-04-02 04:56:03,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:56:03,045 INFO L225 Difference]: With dead ends: 3539 [2023-04-02 04:56:03,045 INFO L226 Difference]: Without dead ends: 2785 [2023-04-02 04:56:03,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-04-02 04:56:03,051 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3383 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 8107 mSolverCounterSat, 721 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3433 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 8828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 721 IncrementalHoareTripleChecker+Valid, 8107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:56:03,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3433 Valid, 16 Invalid, 8828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [721 Valid, 8107 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-04-02 04:56:03,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2023-04-02 04:56:03,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 1878. [2023-04-02 04:56:03,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1878 states, 1473 states have (on average 1.486082824168364) internal successors, (2189), 1567 states have internal predecessors, (2189), 229 states have call successors, (229), 152 states have call predecessors, (229), 175 states have return successors, (294), 229 states have call predecessors, (294), 226 states have call successors, (294) [2023-04-02 04:56:03,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1878 states to 1878 states and 2712 transitions. [2023-04-02 04:56:03,621 INFO L78 Accepts]: Start accepts. Automaton has 1878 states and 2712 transitions. Word has length 210 [2023-04-02 04:56:03,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:56:03,621 INFO L495 AbstractCegarLoop]: Abstraction has 1878 states and 2712 transitions. [2023-04-02 04:56:03,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:56:03,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1878 states and 2712 transitions. [2023-04-02 04:56:03,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-04-02 04:56:03,625 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:56:03,625 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] [2023-04-02 04:56:03,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:56:03,625 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:56:03,626 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:56:03,626 INFO L85 PathProgramCache]: Analyzing trace with hash -857242773, now seen corresponding path program 1 times [2023-04-02 04:56:03,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:56:03,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691369276] [2023-04-02 04:56:03,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:56:03,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:56:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:03,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:56:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:04,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:56:04,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:04,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:56:04,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:04,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:56:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:04,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:56:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:04,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:56:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:04,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:56:04,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:04,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:56:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:04,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:56:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:04,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:56:04,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:04,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:56:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:04,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:56:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:04,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:56:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:04,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:56:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:04,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:56:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:04,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:56:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:04,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:56:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:04,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 04:56:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:04,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 04:56:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:04,178 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 04:56:04,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:56:04,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691369276] [2023-04-02 04:56:04,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691369276] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:56:04,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:56:04,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:56:04,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38920526] [2023-04-02 04:56:04,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:56:04,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:56:04,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:56:04,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:56:04,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:56:04,181 INFO L87 Difference]: Start difference. First operand 1878 states and 2712 transitions. Second operand has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:56:13,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:56:13,277 INFO L93 Difference]: Finished difference Result 5413 states and 8146 transitions. [2023-04-02 04:56:13,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 04:56:13,277 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 210 [2023-04-02 04:56:13,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:56:13,299 INFO L225 Difference]: With dead ends: 5413 [2023-04-02 04:56:13,299 INFO L226 Difference]: Without dead ends: 3978 [2023-04-02 04:56:13,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-04-02 04:56:13,307 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 4203 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 7072 mSolverCounterSat, 913 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4253 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 7985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 913 IncrementalHoareTripleChecker+Valid, 7072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-04-02 04:56:13,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4253 Valid, 16 Invalid, 7985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [913 Valid, 7072 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-04-02 04:56:13,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3978 states. [2023-04-02 04:56:14,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3978 to 2631. [2023-04-02 04:56:14,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2631 states, 2078 states have (on average 1.4975938402309914) internal successors, (3112), 2198 states have internal predecessors, (3112), 313 states have call successors, (313), 212 states have call predecessors, (313), 239 states have return successors, (390), 315 states have call predecessors, (390), 310 states have call successors, (390) [2023-04-02 04:56:14,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2631 states to 2631 states and 3815 transitions. [2023-04-02 04:56:14,153 INFO L78 Accepts]: Start accepts. Automaton has 2631 states and 3815 transitions. Word has length 210 [2023-04-02 04:56:14,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:56:14,154 INFO L495 AbstractCegarLoop]: Abstraction has 2631 states and 3815 transitions. [2023-04-02 04:56:14,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:56:14,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2631 states and 3815 transitions. [2023-04-02 04:56:14,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-04-02 04:56:14,160 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:56:14,160 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] [2023-04-02 04:56:14,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 04:56:14,160 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:56:14,161 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:56:14,161 INFO L85 PathProgramCache]: Analyzing trace with hash -837701651, now seen corresponding path program 1 times [2023-04-02 04:56:14,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:56:14,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416972286] [2023-04-02 04:56:14,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:56:14,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:56:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:56:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:56:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:56:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:56:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:56:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:56:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:56:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:56:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:56:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:56:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:56:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:56:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:56:14,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:56:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:56:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:56:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:56:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 04:56:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 04:56:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:14,658 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 04:56:14,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:56:14,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416972286] [2023-04-02 04:56:14,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416972286] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:56:14,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:56:14,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 04:56:14,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566650761] [2023-04-02 04:56:14,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:56:14,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 04:56:14,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:56:14,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 04:56:14,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 04:56:14,660 INFO L87 Difference]: Start difference. First operand 2631 states and 3815 transitions. Second operand has 10 states, 10 states have (on average 16.7) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:56:18,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:56:18,263 INFO L93 Difference]: Finished difference Result 5977 states and 8905 transitions. [2023-04-02 04:56:18,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 04:56:18,264 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 210 [2023-04-02 04:56:18,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:56:18,282 INFO L225 Difference]: With dead ends: 5977 [2023-04-02 04:56:18,282 INFO L226 Difference]: Without dead ends: 3776 [2023-04-02 04:56:18,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-04-02 04:56:18,290 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2484 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 638 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2484 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 2676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 638 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:56:18,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2484 Valid, 17 Invalid, 2676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [638 Valid, 2038 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-04-02 04:56:18,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3776 states. [2023-04-02 04:56:19,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 2631. [2023-04-02 04:56:19,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2631 states, 2078 states have (on average 1.487487969201155) internal successors, (3091), 2198 states have internal predecessors, (3091), 313 states have call successors, (313), 212 states have call predecessors, (313), 239 states have return successors, (390), 315 states have call predecessors, (390), 310 states have call successors, (390) [2023-04-02 04:56:19,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2631 states to 2631 states and 3794 transitions. [2023-04-02 04:56:19,208 INFO L78 Accepts]: Start accepts. Automaton has 2631 states and 3794 transitions. Word has length 210 [2023-04-02 04:56:19,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:56:19,208 INFO L495 AbstractCegarLoop]: Abstraction has 2631 states and 3794 transitions. [2023-04-02 04:56:19,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:56:19,209 INFO L276 IsEmpty]: Start isEmpty. Operand 2631 states and 3794 transitions. [2023-04-02 04:56:19,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-04-02 04:56:19,213 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:56:19,213 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] [2023-04-02 04:56:19,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 04:56:19,214 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:56:19,214 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:56:19,214 INFO L85 PathProgramCache]: Analyzing trace with hash -2021443667, now seen corresponding path program 1 times [2023-04-02 04:56:19,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:56:19,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338932217] [2023-04-02 04:56:19,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:56:19,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:56:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:19,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:56:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:19,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:56:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:19,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:56:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:19,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:56:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:19,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:56:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:19,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:56:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:19,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:56:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:19,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:56:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:19,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:56:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:19,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:56:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:19,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:56:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:19,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:56:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:19,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:56:19,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:19,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:56:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:19,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:56:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:19,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:56:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:19,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:56:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:19,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 04:56:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:19,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 04:56:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:19,718 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 04:56:19,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:56:19,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338932217] [2023-04-02 04:56:19,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338932217] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:56:19,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:56:19,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 04:56:19,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496300327] [2023-04-02 04:56:19,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:56:19,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 04:56:19,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:56:19,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 04:56:19,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 04:56:19,721 INFO L87 Difference]: Start difference. First operand 2631 states and 3794 transitions. Second operand has 10 states, 10 states have (on average 16.7) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:56:23,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:56:23,441 INFO L93 Difference]: Finished difference Result 5974 states and 8854 transitions. [2023-04-02 04:56:23,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 04:56:23,441 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 210 [2023-04-02 04:56:23,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:56:23,457 INFO L225 Difference]: With dead ends: 5974 [2023-04-02 04:56:23,458 INFO L226 Difference]: Without dead ends: 3776 [2023-04-02 04:56:23,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-04-02 04:56:23,464 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2443 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2313 mSolverCounterSat, 625 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2443 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 2938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 625 IncrementalHoareTripleChecker+Valid, 2313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:56:23,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2443 Valid, 16 Invalid, 2938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [625 Valid, 2313 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-02 04:56:23,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3776 states. [2023-04-02 04:56:24,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 2631. [2023-04-02 04:56:24,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2631 states, 2078 states have (on average 1.4773820981713186) internal successors, (3070), 2198 states have internal predecessors, (3070), 313 states have call successors, (313), 212 states have call predecessors, (313), 239 states have return successors, (390), 315 states have call predecessors, (390), 310 states have call successors, (390) [2023-04-02 04:56:24,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2631 states to 2631 states and 3773 transitions. [2023-04-02 04:56:24,343 INFO L78 Accepts]: Start accepts. Automaton has 2631 states and 3773 transitions. Word has length 210 [2023-04-02 04:56:24,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:56:24,343 INFO L495 AbstractCegarLoop]: Abstraction has 2631 states and 3773 transitions. [2023-04-02 04:56:24,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:56:24,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2631 states and 3773 transitions. [2023-04-02 04:56:24,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-04-02 04:56:24,348 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:56:24,348 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] [2023-04-02 04:56:24,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 04:56:24,349 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:56:24,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:56:24,349 INFO L85 PathProgramCache]: Analyzing trace with hash 434223085, now seen corresponding path program 1 times [2023-04-02 04:56:24,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:56:24,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908570759] [2023-04-02 04:56:24,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:56:24,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:56:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:24,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:56:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:24,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:56:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:24,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:56:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:24,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:56:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:24,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:56:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:24,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:56:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:24,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:56:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:24,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:56:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:24,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:56:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:24,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:56:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:24,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:56:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:24,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:56:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:24,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:56:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:24,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:56:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:24,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:56:24,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:24,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:56:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:24,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:56:24,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:24,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 04:56:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:24,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 04:56:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:24,861 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 04:56:24,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:56:24,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908570759] [2023-04-02 04:56:24,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908570759] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:56:24,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:56:24,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:56:24,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87658957] [2023-04-02 04:56:24,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:56:24,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:56:24,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:56:24,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:56:24,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:56:24,863 INFO L87 Difference]: Start difference. First operand 2631 states and 3773 transitions. Second operand has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:56:35,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:56:35,287 INFO L93 Difference]: Finished difference Result 8421 states and 12547 transitions. [2023-04-02 04:56:35,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 04:56:35,287 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 210 [2023-04-02 04:56:35,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:56:35,321 INFO L225 Difference]: With dead ends: 8421 [2023-04-02 04:56:35,321 INFO L226 Difference]: Without dead ends: 6268 [2023-04-02 04:56:35,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-04-02 04:56:35,332 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3019 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7689 mSolverCounterSat, 653 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3070 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 8342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 653 IncrementalHoareTripleChecker+Valid, 7689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:56:35,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3070 Valid, 17 Invalid, 8342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [653 Valid, 7689 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2023-04-02 04:56:35,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6268 states. [2023-04-02 04:56:36,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6268 to 4138. [2023-04-02 04:56:36,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4138 states, 3289 states have (on average 1.4843417452113103) internal successors, (4882), 3461 states have internal predecessors, (4882), 481 states have call successors, (481), 332 states have call predecessors, (481), 367 states have return successors, (588), 487 states have call predecessors, (588), 478 states have call successors, (588) [2023-04-02 04:56:36,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4138 states to 4138 states and 5951 transitions. [2023-04-02 04:56:36,434 INFO L78 Accepts]: Start accepts. Automaton has 4138 states and 5951 transitions. Word has length 210 [2023-04-02 04:56:36,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:56:36,434 INFO L495 AbstractCegarLoop]: Abstraction has 4138 states and 5951 transitions. [2023-04-02 04:56:36,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:56:36,434 INFO L276 IsEmpty]: Start isEmpty. Operand 4138 states and 5951 transitions. [2023-04-02 04:56:36,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-04-02 04:56:36,440 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:56:36,440 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] [2023-04-02 04:56:36,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 04:56:36,441 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:56:36,441 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:56:36,441 INFO L85 PathProgramCache]: Analyzing trace with hash -934237525, now seen corresponding path program 1 times [2023-04-02 04:56:36,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:56:36,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679286625] [2023-04-02 04:56:36,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:56:36,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:56:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:36,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:56:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:36,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:56:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:36,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:56:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:36,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:56:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:36,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:56:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:36,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:56:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:36,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:56:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:36,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:56:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:36,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:56:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:36,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:56:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:36,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:56:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:36,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:56:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:36,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:56:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:36,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:56:36,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:36,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:56:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:36,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:56:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:36,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:56:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:36,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 04:56:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:36,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 04:56:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:36,980 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 04:56:36,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:56:36,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679286625] [2023-04-02 04:56:36,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679286625] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:56:36,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:56:36,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:56:36,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326089249] [2023-04-02 04:56:36,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:56:36,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:56:36,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:56:36,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:56:36,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:56:36,982 INFO L87 Difference]: Start difference. First operand 4138 states and 5951 transitions. Second operand has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:56:48,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:56:48,637 INFO L93 Difference]: Finished difference Result 14455 states and 21575 transitions. [2023-04-02 04:56:48,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 04:56:48,639 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 210 [2023-04-02 04:56:48,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:56:48,678 INFO L225 Difference]: With dead ends: 14455 [2023-04-02 04:56:48,678 INFO L226 Difference]: Without dead ends: 10854 [2023-04-02 04:56:48,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-04-02 04:56:48,691 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3028 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7632 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3078 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 8296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 7632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:56:48,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3078 Valid, 17 Invalid, 8296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 7632 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-04-02 04:56:48,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10854 states. [2023-04-02 04:56:50,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10854 to 7147. [2023-04-02 04:56:50,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7147 states, 5706 states have (on average 1.4889589905362777) internal successors, (8496), 5982 states have internal predecessors, (8496), 817 states have call successors, (817), 572 states have call predecessors, (817), 623 states have return successors, (1002), 831 states have call predecessors, (1002), 814 states have call successors, (1002) [2023-04-02 04:56:50,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7147 states to 7147 states and 10315 transitions. [2023-04-02 04:56:50,781 INFO L78 Accepts]: Start accepts. Automaton has 7147 states and 10315 transitions. Word has length 210 [2023-04-02 04:56:50,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:56:50,782 INFO L495 AbstractCegarLoop]: Abstraction has 7147 states and 10315 transitions. [2023-04-02 04:56:50,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:56:50,783 INFO L276 IsEmpty]: Start isEmpty. Operand 7147 states and 10315 transitions. [2023-04-02 04:56:50,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-04-02 04:56:50,792 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:56:50,792 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] [2023-04-02 04:56:50,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 04:56:50,793 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:56:50,793 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:56:50,793 INFO L85 PathProgramCache]: Analyzing trace with hash -285644755, now seen corresponding path program 1 times [2023-04-02 04:56:50,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:56:50,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944008204] [2023-04-02 04:56:50,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:56:50,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:56:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:51,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:56:51,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:51,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:56:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:51,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:56:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:51,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:56:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:51,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:56:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:51,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:56:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:51,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:56:51,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:51,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:56:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:51,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:56:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:51,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:56:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:51,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:56:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:51,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:56:51,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:51,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:56:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:51,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:56:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:51,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:56:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:51,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:56:51,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:51,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:56:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:51,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 04:56:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:51,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 04:56:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:56:51,258 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 04:56:51,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:56:51,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944008204] [2023-04-02 04:56:51,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944008204] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:56:51,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:56:51,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:56:51,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796150941] [2023-04-02 04:56:51,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:56:51,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:56:51,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:56:51,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:56:51,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:56:51,261 INFO L87 Difference]: Start difference. First operand 7147 states and 10315 transitions. Second operand has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:57:05,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:57:05,251 INFO L93 Difference]: Finished difference Result 26509 states and 39699 transitions. [2023-04-02 04:57:05,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 04:57:05,252 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 210 [2023-04-02 04:57:05,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:57:05,320 INFO L225 Difference]: With dead ends: 26509 [2023-04-02 04:57:05,321 INFO L226 Difference]: Without dead ends: 20004 [2023-04-02 04:57:05,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-04-02 04:57:05,346 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3402 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 7141 mSolverCounterSat, 757 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3452 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 7898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 757 IncrementalHoareTripleChecker+Valid, 7141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-04-02 04:57:05,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3452 Valid, 16 Invalid, 7898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [757 Valid, 7141 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-04-02 04:57:05,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20004 states. [2023-04-02 04:57:09,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20004 to 13164. [2023-04-02 04:57:09,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13164 states, 10539 states have (on average 1.4910333048676345) internal successors, (15714), 11023 states have internal predecessors, (15714), 1489 states have call successors, (1489), 1052 states have call predecessors, (1489), 1135 states have return successors, (1884), 1519 states have call predecessors, (1884), 1486 states have call successors, (1884) [2023-04-02 04:57:09,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13164 states to 13164 states and 19087 transitions. [2023-04-02 04:57:09,166 INFO L78 Accepts]: Start accepts. Automaton has 13164 states and 19087 transitions. Word has length 210 [2023-04-02 04:57:09,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:57:09,167 INFO L495 AbstractCegarLoop]: Abstraction has 13164 states and 19087 transitions. [2023-04-02 04:57:09,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:57:09,167 INFO L276 IsEmpty]: Start isEmpty. Operand 13164 states and 19087 transitions. [2023-04-02 04:57:09,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-04-02 04:57:09,184 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:57:09,185 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] [2023-04-02 04:57:09,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 04:57:09,185 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:57:09,185 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:57:09,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1788743061, now seen corresponding path program 1 times [2023-04-02 04:57:09,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:57:09,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677134924] [2023-04-02 04:57:09,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:57:09,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:57:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:09,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:57:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:09,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:57:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:09,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:57:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:09,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:57:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:09,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:57:09,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:09,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:57:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:09,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:09,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:57:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:09,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:57:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:09,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:57:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:09,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:57:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:09,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:57:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:09,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:57:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:09,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:57:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:09,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:57:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:09,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:57:09,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:09,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:57:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:09,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 04:57:09,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:09,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 04:57:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:09,699 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 04:57:09,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:57:09,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677134924] [2023-04-02 04:57:09,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677134924] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:57:09,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:57:09,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:57:09,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54151127] [2023-04-02 04:57:09,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:57:09,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:57:09,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:57:09,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:57:09,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:57:09,701 INFO L87 Difference]: Start difference. First operand 13164 states and 19087 transitions. Second operand has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:57:34,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:57:34,604 INFO L93 Difference]: Finished difference Result 62539 states and 93830 transitions. [2023-04-02 04:57:34,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 04:57:34,604 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 210 [2023-04-02 04:57:34,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:57:34,857 INFO L225 Difference]: With dead ends: 62539 [2023-04-02 04:57:34,857 INFO L226 Difference]: Without dead ends: 50210 [2023-04-02 04:57:34,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2023-04-02 04:57:34,916 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3793 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 7125 mSolverCounterSat, 890 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3843 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 8015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 890 IncrementalHoareTripleChecker+Valid, 7125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-04-02 04:57:34,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3843 Valid, 16 Invalid, 8015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [890 Valid, 7125 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-04-02 04:57:34,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50210 states. [2023-04-02 04:57:48,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50210 to 40105. [2023-04-02 04:57:48,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40105 states, 31453 states have (on average 1.4583664515308556) internal successors, (45870), 34381 states have internal predecessors, (45870), 4703 states have call successors, (4703), 2862 states have call predecessors, (4703), 3948 states have return successors, (8359), 4765 states have call predecessors, (8359), 4700 states have call successors, (8359) [2023-04-02 04:57:49,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40105 states to 40105 states and 58932 transitions. [2023-04-02 04:57:49,067 INFO L78 Accepts]: Start accepts. Automaton has 40105 states and 58932 transitions. Word has length 210 [2023-04-02 04:57:49,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:57:49,067 INFO L495 AbstractCegarLoop]: Abstraction has 40105 states and 58932 transitions. [2023-04-02 04:57:49,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:57:49,067 INFO L276 IsEmpty]: Start isEmpty. Operand 40105 states and 58932 transitions. [2023-04-02 04:57:49,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-04-02 04:57:49,098 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:57:49,099 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] [2023-04-02 04:57:49,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 04:57:49,099 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:57:49,099 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:57:49,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1816392745, now seen corresponding path program 1 times [2023-04-02 04:57:49,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:57:49,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188522941] [2023-04-02 04:57:49,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:57:49,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:57:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:49,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:57:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:49,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:57:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:49,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:57:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:49,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:57:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:49,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:57:49,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:49,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:57:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:49,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:57:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:49,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:57:49,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:49,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:57:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:49,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:57:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:49,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:57:49,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:49,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:57:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:49,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:57:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:49,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:57:49,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:49,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:57:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:49,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:57:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:49,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:57:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:49,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 04:57:49,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:49,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 04:57:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:57:49,542 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 04:57:49,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:57:49,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188522941] [2023-04-02 04:57:49,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188522941] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:57:49,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:57:49,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 04:57:49,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394482541] [2023-04-02 04:57:49,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:57:49,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 04:57:49,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:57:49,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 04:57:49,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 04:57:49,545 INFO L87 Difference]: Start difference. First operand 40105 states and 58932 transitions. Second operand has 10 states, 10 states have (on average 16.7) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:58:16,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:58:16,344 INFO L93 Difference]: Finished difference Result 109245 states and 171127 transitions. [2023-04-02 04:58:16,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 04:58:16,344 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 210 [2023-04-02 04:58:16,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:58:16,728 INFO L225 Difference]: With dead ends: 109245 [2023-04-02 04:58:16,728 INFO L226 Difference]: Without dead ends: 69169 [2023-04-02 04:58:16,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2023-04-02 04:58:16,947 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3631 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2246 mSolverCounterSat, 1086 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3631 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 3332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1086 IncrementalHoareTripleChecker+Valid, 2246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-04-02 04:58:16,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3631 Valid, 16 Invalid, 3332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1086 Valid, 2246 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-04-02 04:58:17,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69169 states. [2023-04-02 04:58:35,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69169 to 51821. [2023-04-02 04:58:35,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51821 states, 40644 states have (on average 1.425401043204409) internal successors, (57934), 43572 states have internal predecessors, (57934), 5915 states have call successors, (5915), 4175 states have call predecessors, (5915), 5261 states have return successors, (9639), 5977 states have call predecessors, (9639), 5912 states have call successors, (9639) [2023-04-02 04:58:35,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51821 states to 51821 states and 73488 transitions. [2023-04-02 04:58:35,535 INFO L78 Accepts]: Start accepts. Automaton has 51821 states and 73488 transitions. Word has length 210 [2023-04-02 04:58:35,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:58:35,535 INFO L495 AbstractCegarLoop]: Abstraction has 51821 states and 73488 transitions. [2023-04-02 04:58:35,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:58:35,535 INFO L276 IsEmpty]: Start isEmpty. Operand 51821 states and 73488 transitions. [2023-04-02 04:58:35,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-04-02 04:58:35,562 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:58:35,563 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] [2023-04-02 04:58:35,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 04:58:35,563 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:58:35,563 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:58:35,563 INFO L85 PathProgramCache]: Analyzing trace with hash -963140503, now seen corresponding path program 1 times [2023-04-02 04:58:35,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:58:35,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851048490] [2023-04-02 04:58:35,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:58:35,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:58:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:35,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:58:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:35,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:58:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:35,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:58:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:35,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:58:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:36,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 04:58:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:36,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 04:58:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:36,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:58:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:36,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:58:36,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:36,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 04:58:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:36,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:58:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:36,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:58:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:36,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:58:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:36,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:58:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:36,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:58:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:36,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 04:58:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:36,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:58:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:36,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 04:58:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:36,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 04:58:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:36,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 04:58:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:58:36,066 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 04:58:36,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:58:36,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851048490] [2023-04-02 04:58:36,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851048490] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:58:36,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:58:36,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:58:36,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121176436] [2023-04-02 04:58:36,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:58:36,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:58:36,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:58:36,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:58:36,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:58:36,068 INFO L87 Difference]: Start difference. First operand 51821 states and 73488 transitions. Second operand has 9 states, 9 states have (on average 18.555555555555557) internal successors, (167), 5 states have internal predecessors, (167), 3 states have call successors, (24), 7 states have call predecessors, (24), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19)