/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/systemc/token_ring.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:25:37,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:25:37,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:25:37,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:25:37,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:25:37,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:25:37,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:25:37,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:25:37,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:25:37,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:25:37,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:25:37,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:25:37,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:25:37,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:25:37,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:25:37,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:25:37,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:25:37,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:25:37,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:25:37,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:25:37,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:25:37,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:25:37,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:25:37,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:25:37,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:25:37,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:25:37,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:25:37,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:25:37,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:25:37,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:25:37,759 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:25:37,760 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:25:37,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:25:37,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:25:37,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:25:37,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:25:37,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:25:37,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:25:37,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:25:37,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:25:37,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:25:37,765 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-31 01:25:37,794 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:25:37,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:25:37,794 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:25:37,795 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:25:37,796 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:25:37,796 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:25:37,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:25:37,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:25:37,797 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:25:37,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:25:37,797 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:25:37,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:25:37,798 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:25:37,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:25:37,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:25:37,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:25:37,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:25:37,798 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:25:37,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:25:37,798 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:25:37,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:25:37,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:25:37,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:25:37,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:25:37,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:25:37,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:25:37,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:25:37,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:25:37,800 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:25:37,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:25:37,800 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:25:37,800 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:25:37,800 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:25:37,800 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:25:37,800 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:25:37,801 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:25:38,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:25:38,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:25:38,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:25:38,075 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:25:38,076 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:25:38,077 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.15.cil.c [2023-03-31 01:25:39,251 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:25:39,480 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:25:39,481 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.15.cil.c [2023-03-31 01:25:39,496 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/870b9a46f/943db1a9c1ec4fa08d031c2d4b91064c/FLAG856f6fb98 [2023-03-31 01:25:39,510 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/870b9a46f/943db1a9c1ec4fa08d031c2d4b91064c [2023-03-31 01:25:39,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:25:39,514 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:25:39,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:25:39,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:25:39,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:25:39,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:25:39" (1/1) ... [2023-03-31 01:25:39,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e800f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:39, skipping insertion in model container [2023-03-31 01:25:39,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:25:39" (1/1) ... [2023-03-31 01:25:39,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:25:39,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:25:39,688 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.15.cil.c[669,682] [2023-03-31 01:25:39,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:25:39,878 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:25:39,892 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.15.cil.c[669,682] [2023-03-31 01:25:39,962 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:25:39,987 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:25:39,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:39 WrapperNode [2023-03-31 01:25:39,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:25:39,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:25:39,988 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:25:39,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:25:39,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:39" (1/1) ... [2023-03-31 01:25:39,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:39" (1/1) ... [2023-03-31 01:25:40,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:39" (1/1) ... [2023-03-31 01:25:40,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:39" (1/1) ... [2023-03-31 01:25:40,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:39" (1/1) ... [2023-03-31 01:25:40,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:39" (1/1) ... [2023-03-31 01:25:40,077 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:39" (1/1) ... [2023-03-31 01:25:40,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:39" (1/1) ... [2023-03-31 01:25:40,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:25:40,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:25:40,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:25:40,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:25:40,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:39" (1/1) ... [2023-03-31 01:25:40,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:25:40,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:25:40,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 01:25:40,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 01:25:40,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:25:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:25:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:25:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-03-31 01:25:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2023-03-31 01:25:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2023-03-31 01:25:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2023-03-31 01:25:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2023-03-31 01:25:40,146 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2023-03-31 01:25:40,147 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2023-03-31 01:25:40,147 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2023-03-31 01:25:40,147 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2023-03-31 01:25:40,147 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2023-03-31 01:25:40,147 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2023-03-31 01:25:40,147 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2023-03-31 01:25:40,147 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2023-03-31 01:25:40,147 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2023-03-31 01:25:40,147 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2023-03-31 01:25:40,147 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2023-03-31 01:25:40,148 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2023-03-31 01:25:40,148 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2023-03-31 01:25:40,148 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2023-03-31 01:25:40,148 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2023-03-31 01:25:40,148 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2023-03-31 01:25:40,148 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2023-03-31 01:25:40,148 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2023-03-31 01:25:40,148 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2023-03-31 01:25:40,148 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2023-03-31 01:25:40,149 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2023-03-31 01:25:40,149 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2023-03-31 01:25:40,149 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2023-03-31 01:25:40,149 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2023-03-31 01:25:40,149 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-03-31 01:25:40,149 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2023-03-31 01:25:40,149 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-03-31 01:25:40,149 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2023-03-31 01:25:40,149 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-03-31 01:25:40,149 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-03-31 01:25:40,150 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-03-31 01:25:40,150 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-03-31 01:25:40,150 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2023-03-31 01:25:40,150 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2023-03-31 01:25:40,150 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2023-03-31 01:25:40,150 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2023-03-31 01:25:40,150 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2023-03-31 01:25:40,150 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:25:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:25:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:25:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:25:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:25:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-03-31 01:25:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2023-03-31 01:25:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2023-03-31 01:25:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2023-03-31 01:25:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2023-03-31 01:25:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2023-03-31 01:25:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2023-03-31 01:25:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2023-03-31 01:25:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2023-03-31 01:25:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2023-03-31 01:25:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2023-03-31 01:25:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2023-03-31 01:25:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2023-03-31 01:25:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2023-03-31 01:25:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2023-03-31 01:25:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-03-31 01:25:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 01:25:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure master [2023-03-31 01:25:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2023-03-31 01:25:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2023-03-31 01:25:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2023-03-31 01:25:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2023-03-31 01:25:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2023-03-31 01:25:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2023-03-31 01:25:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2023-03-31 01:25:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2023-03-31 01:25:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2023-03-31 01:25:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2023-03-31 01:25:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2023-03-31 01:25:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2023-03-31 01:25:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2023-03-31 01:25:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-03-31 01:25:40,155 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2023-03-31 01:25:40,155 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-03-31 01:25:40,155 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2023-03-31 01:25:40,155 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-03-31 01:25:40,155 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-03-31 01:25:40,156 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-03-31 01:25:40,156 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2023-03-31 01:25:40,156 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2023-03-31 01:25:40,156 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2023-03-31 01:25:40,156 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2023-03-31 01:25:40,157 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2023-03-31 01:25:40,157 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:25:40,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:25:40,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:25:40,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:25:40,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:25:40,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:25:40,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:25:40,314 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:25:40,316 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:25:41,081 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:25:41,095 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:25:41,096 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-03-31 01:25:41,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:25:41 BoogieIcfgContainer [2023-03-31 01:25:41,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:25:41,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:25:41,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:25:41,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:25:41,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:25:39" (1/3) ... [2023-03-31 01:25:41,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39475a28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:25:41, skipping insertion in model container [2023-03-31 01:25:41,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:25:39" (2/3) ... [2023-03-31 01:25:41,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39475a28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:25:41, skipping insertion in model container [2023-03-31 01:25:41,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:25:41" (3/3) ... [2023-03-31 01:25:41,105 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.15.cil.c [2023-03-31 01:25:41,119 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:25:41,120 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:25:41,174 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:25:41,180 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;@7693da70, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:25:41,180 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:25:41,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 509 states, 397 states have (on average 1.6322418136020151) internal successors, (648), 416 states have internal predecessors, (648), 66 states have call successors, (66), 44 states have call predecessors, (66), 44 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2023-03-31 01:25:41,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-03-31 01:25:41,203 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:25:41,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:25:41,204 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:25:41,208 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:25:41,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1366042550, now seen corresponding path program 1 times [2023-03-31 01:25:41,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:25:41,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424334808] [2023-03-31 01:25:41,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:25:41,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:25:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:25:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:25:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:25:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:25:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:25:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-03-31 01:25:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:25:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:25:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:25:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:25:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:25:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:25:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:25:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:25:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:25:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-31 01:25:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-03-31 01:25:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-03-31 01:25:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-03-31 01:25:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-03-31 01:25:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-03-31 01:25:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-03-31 01:25:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:42,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:25:42,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:25:42,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424334808] [2023-03-31 01:25:42,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424334808] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:25:42,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:25:42,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:25:42,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028685843] [2023-03-31 01:25:42,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:25:42,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:25:42,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:25:42,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:25:42,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 01:25:42,553 INFO L87 Difference]: Start difference. First operand has 509 states, 397 states have (on average 1.6322418136020151) internal successors, (648), 416 states have internal predecessors, (648), 66 states have call successors, (66), 44 states have call predecessors, (66), 44 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 8 states, 8 states have (on average 24.625) internal successors, (197), 4 states have internal predecessors, (197), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-03-31 01:25:48,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:25:48,334 INFO L93 Difference]: Finished difference Result 1324 states and 2180 transitions. [2023-03-31 01:25:48,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-03-31 01:25:48,346 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.625) internal successors, (197), 4 states have internal predecessors, (197), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 246 [2023-03-31 01:25:48,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:25:48,363 INFO L225 Difference]: With dead ends: 1324 [2023-03-31 01:25:48,364 INFO L226 Difference]: Without dead ends: 822 [2023-03-31 01:25:48,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:25:48,373 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3130 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 2753 mSolverCounterSat, 778 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3130 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 3531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 778 IncrementalHoareTripleChecker+Valid, 2753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-03-31 01:25:48,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3130 Valid, 31 Invalid, 3531 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [778 Valid, 2753 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-03-31 01:25:48,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2023-03-31 01:25:48,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 500. [2023-03-31 01:25:48,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 392 states have (on average 1.5510204081632653) internal successors, (608), 409 states have internal predecessors, (608), 66 states have call successors, (66), 44 states have call predecessors, (66), 41 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-03-31 01:25:48,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 736 transitions. [2023-03-31 01:25:48,647 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 736 transitions. Word has length 246 [2023-03-31 01:25:48,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:25:48,647 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 736 transitions. [2023-03-31 01:25:48,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.625) internal successors, (197), 4 states have internal predecessors, (197), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-03-31 01:25:48,648 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 736 transitions. [2023-03-31 01:25:48,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-03-31 01:25:48,652 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:25:48,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:25:48,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:25:48,653 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:25:48,653 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:25:48,653 INFO L85 PathProgramCache]: Analyzing trace with hash 474967928, now seen corresponding path program 1 times [2023-03-31 01:25:48,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:25:48,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332036366] [2023-03-31 01:25:48,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:25:48,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:25:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:25:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:25:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:25:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:25:49,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:25:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-03-31 01:25:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:25:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:25:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:25:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:25:49,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:25:49,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:25:49,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:25:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:25:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:25:49,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-31 01:25:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-03-31 01:25:49,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-03-31 01:25:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-03-31 01:25:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-03-31 01:25:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-03-31 01:25:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-03-31 01:25:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:49,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:25:49,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:25:49,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332036366] [2023-03-31 01:25:49,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332036366] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:25:49,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:25:49,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:25:49,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870057163] [2023-03-31 01:25:49,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:25:49,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:25:49,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:25:49,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:25:49,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 01:25:49,267 INFO L87 Difference]: Start difference. First operand 500 states and 736 transitions. Second operand has 8 states, 8 states have (on average 24.625) internal successors, (197), 4 states have internal predecessors, (197), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-03-31 01:25:54,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:25:54,576 INFO L93 Difference]: Finished difference Result 1295 states and 1984 transitions. [2023-03-31 01:25:54,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 01:25:54,577 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.625) internal successors, (197), 4 states have internal predecessors, (197), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 246 [2023-03-31 01:25:54,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:25:54,586 INFO L225 Difference]: With dead ends: 1295 [2023-03-31 01:25:54,587 INFO L226 Difference]: Without dead ends: 822 [2023-03-31 01:25:54,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-03-31 01:25:54,595 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2682 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 3111 mSolverCounterSat, 641 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2682 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 3752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 641 IncrementalHoareTripleChecker+Valid, 3111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-03-31 01:25:54,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2682 Valid, 14 Invalid, 3752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [641 Valid, 3111 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-03-31 01:25:54,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2023-03-31 01:25:54,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 500. [2023-03-31 01:25:54,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 392 states have (on average 1.5484693877551021) internal successors, (607), 409 states have internal predecessors, (607), 66 states have call successors, (66), 44 states have call predecessors, (66), 41 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-03-31 01:25:54,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 735 transitions. [2023-03-31 01:25:54,765 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 735 transitions. Word has length 246 [2023-03-31 01:25:54,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:25:54,766 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 735 transitions. [2023-03-31 01:25:54,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.625) internal successors, (197), 4 states have internal predecessors, (197), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-03-31 01:25:54,767 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 735 transitions. [2023-03-31 01:25:54,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-03-31 01:25:54,770 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:25:54,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:25:54,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:25:54,771 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:25:54,771 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:25:54,772 INFO L85 PathProgramCache]: Analyzing trace with hash -712009414, now seen corresponding path program 1 times [2023-03-31 01:25:54,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:25:54,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548904536] [2023-03-31 01:25:54,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:25:54,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:25:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:25:55,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:25:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:25:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:25:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:25:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-03-31 01:25:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:25:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:25:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:25:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:25:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:25:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:25:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:25:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:25:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:25:55,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-31 01:25:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-03-31 01:25:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-03-31 01:25:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-03-31 01:25:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-03-31 01:25:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-03-31 01:25:55,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-03-31 01:25:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:25:55,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:25:55,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:25:55,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548904536] [2023-03-31 01:25:55,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548904536] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:25:55,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:25:55,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-03-31 01:25:55,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416260608] [2023-03-31 01:25:55,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:25:55,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-03-31 01:25:55,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:25:55,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-03-31 01:25:55,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-03-31 01:25:55,666 INFO L87 Difference]: Start difference. First operand 500 states and 735 transitions. Second operand has 8 states, 8 states have (on average 24.625) internal successors, (197), 4 states have internal predecessors, (197), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-03-31 01:26:02,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:26:02,509 INFO L93 Difference]: Finished difference Result 2053 states and 3169 transitions. [2023-03-31 01:26:02,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 01:26:02,512 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.625) internal successors, (197), 4 states have internal predecessors, (197), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 246 [2023-03-31 01:26:02,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:26:02,520 INFO L225 Difference]: With dead ends: 2053 [2023-03-31 01:26:02,520 INFO L226 Difference]: Without dead ends: 1584 [2023-03-31 01:26:02,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:26:02,523 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 5303 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3882 mSolverCounterSat, 1114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5361 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 4996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1114 IncrementalHoareTripleChecker+Valid, 3882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-03-31 01:26:02,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5361 Valid, 15 Invalid, 4996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1114 Valid, 3882 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-03-31 01:26:02,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2023-03-31 01:26:02,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 985. [2023-03-31 01:26:02,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 787 states have (on average 1.5616264294790343) internal successors, (1229), 820 states have internal predecessors, (1229), 118 states have call successors, (118), 80 states have call predecessors, (118), 79 states have return successors, (118), 115 states have call predecessors, (118), 114 states have call successors, (118) [2023-03-31 01:26:02,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1465 transitions. [2023-03-31 01:26:02,809 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1465 transitions. Word has length 246 [2023-03-31 01:26:02,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:26:02,810 INFO L495 AbstractCegarLoop]: Abstraction has 985 states and 1465 transitions. [2023-03-31 01:26:02,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.625) internal successors, (197), 4 states have internal predecessors, (197), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-03-31 01:26:02,810 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1465 transitions. [2023-03-31 01:26:02,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-03-31 01:26:02,813 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:26:02,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:26:02,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:26:02,813 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:26:02,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:26:02,814 INFO L85 PathProgramCache]: Analyzing trace with hash -466201540, now seen corresponding path program 1 times [2023-03-31 01:26:02,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:26:02,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997457874] [2023-03-31 01:26:02,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:26:02,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:26:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:26:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:26:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:26:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:26:03,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:26:03,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-03-31 01:26:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:26:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:26:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:26:03,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:26:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:26:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:26:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:26:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:26:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:26:03,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-31 01:26:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-03-31 01:26:03,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-03-31 01:26:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-03-31 01:26:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-03-31 01:26:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-03-31 01:26:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-03-31 01:26:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:03,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:26:03,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:26:03,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997457874] [2023-03-31 01:26:03,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997457874] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:26:03,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:26:03,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 01:26:03,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156642924] [2023-03-31 01:26:03,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:26:03,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 01:26:03,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:26:03,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 01:26:03,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-03-31 01:26:03,607 INFO L87 Difference]: Start difference. First operand 985 states and 1465 transitions. Second operand has 10 states, 10 states have (on average 19.7) internal successors, (197), 6 states have internal predecessors, (197), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-03-31 01:26:08,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:26:08,842 INFO L93 Difference]: Finished difference Result 2501 states and 3836 transitions. [2023-03-31 01:26:08,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-03-31 01:26:08,845 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 19.7) internal successors, (197), 6 states have internal predecessors, (197), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 246 [2023-03-31 01:26:08,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:26:08,852 INFO L225 Difference]: With dead ends: 2501 [2023-03-31 01:26:08,852 INFO L226 Difference]: Without dead ends: 1547 [2023-03-31 01:26:08,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:26:08,856 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3512 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3027 mSolverCounterSat, 801 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3512 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 3828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 801 IncrementalHoareTripleChecker+Valid, 3027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-03-31 01:26:08,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3512 Valid, 16 Invalid, 3828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [801 Valid, 3027 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-03-31 01:26:08,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2023-03-31 01:26:09,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 985. [2023-03-31 01:26:09,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 787 states have (on average 1.5527318932655654) internal successors, (1222), 820 states have internal predecessors, (1222), 118 states have call successors, (118), 80 states have call predecessors, (118), 79 states have return successors, (118), 115 states have call predecessors, (118), 114 states have call successors, (118) [2023-03-31 01:26:09,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1458 transitions. [2023-03-31 01:26:09,149 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1458 transitions. Word has length 246 [2023-03-31 01:26:09,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:26:09,149 INFO L495 AbstractCegarLoop]: Abstraction has 985 states and 1458 transitions. [2023-03-31 01:26:09,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 19.7) internal successors, (197), 6 states have internal predecessors, (197), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-03-31 01:26:09,149 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1458 transitions. [2023-03-31 01:26:09,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-03-31 01:26:09,152 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:26:09,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:26:09,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:26:09,152 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:26:09,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:26:09,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1531014268, now seen corresponding path program 1 times [2023-03-31 01:26:09,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:26:09,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749016030] [2023-03-31 01:26:09,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:26:09,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:26:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:26:09,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:26:09,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:26:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:26:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:26:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-03-31 01:26:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:26:09,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:26:09,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:26:09,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:26:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:26:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:26:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:26:09,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:26:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:26:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-31 01:26:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-03-31 01:26:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-03-31 01:26:09,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-03-31 01:26:09,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-03-31 01:26:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-03-31 01:26:09,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-03-31 01:26:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:09,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:26:09,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:26:09,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749016030] [2023-03-31 01:26:09,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749016030] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:26:09,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:26:09,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:26:09,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627118628] [2023-03-31 01:26:09,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:26:09,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:26:09,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:26:09,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:26:09,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:26:09,939 INFO L87 Difference]: Start difference. First operand 985 states and 1458 transitions. Second operand has 9 states, 9 states have (on average 21.88888888888889) internal successors, (197), 5 states have internal predecessors, (197), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-03-31 01:26:23,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:26:23,151 INFO L93 Difference]: Finished difference Result 4018 states and 6171 transitions. [2023-03-31 01:26:23,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 01:26:23,152 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 21.88888888888889) internal successors, (197), 5 states have internal predecessors, (197), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 246 [2023-03-31 01:26:23,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:26:23,167 INFO L225 Difference]: With dead ends: 4018 [2023-03-31 01:26:23,167 INFO L226 Difference]: Without dead ends: 3064 [2023-03-31 01:26:23,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2023-03-31 01:26:23,173 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3952 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 9969 mSolverCounterSat, 736 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4011 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 10705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 736 IncrementalHoareTripleChecker+Valid, 9969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:26:23,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4011 Valid, 16 Invalid, 10705 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [736 Valid, 9969 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2023-03-31 01:26:23,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3064 states. [2023-03-31 01:26:23,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3064 to 1989. [2023-03-31 01:26:23,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1989 states, 1583 states have (on average 1.538218572331017) internal successors, (2435), 1674 states have internal predecessors, (2435), 238 states have call successors, (238), 151 states have call predecessors, (238), 167 states have return successors, (274), 237 states have call predecessors, (274), 234 states have call successors, (274) [2023-03-31 01:26:23,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 2947 transitions. [2023-03-31 01:26:23,802 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 2947 transitions. Word has length 246 [2023-03-31 01:26:23,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:26:23,803 INFO L495 AbstractCegarLoop]: Abstraction has 1989 states and 2947 transitions. [2023-03-31 01:26:23,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.88888888888889) internal successors, (197), 5 states have internal predecessors, (197), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-03-31 01:26:23,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 2947 transitions. [2023-03-31 01:26:23,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-03-31 01:26:23,813 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:26:23,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:26:23,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 01:26:23,813 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:26:23,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:26:23,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1660878846, now seen corresponding path program 1 times [2023-03-31 01:26:23,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:26:23,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713395577] [2023-03-31 01:26:23,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:26:23,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:26:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:26:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:26:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:26:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:26:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:26:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-03-31 01:26:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:26:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:26:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:26:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:26:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:26:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:26:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:26:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:26:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:26:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-31 01:26:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-03-31 01:26:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-03-31 01:26:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-03-31 01:26:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-03-31 01:26:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-03-31 01:26:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-03-31 01:26:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:24,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:26:24,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:26:24,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713395577] [2023-03-31 01:26:24,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713395577] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:26:24,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:26:24,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 01:26:24,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174647888] [2023-03-31 01:26:24,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:26:24,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 01:26:24,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:26:24,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 01:26:24,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-03-31 01:26:24,546 INFO L87 Difference]: Start difference. First operand 1989 states and 2947 transitions. Second operand has 10 states, 10 states have (on average 19.7) internal successors, (197), 6 states have internal predecessors, (197), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-03-31 01:26:29,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:26:29,757 INFO L93 Difference]: Finished difference Result 4352 states and 6626 transitions. [2023-03-31 01:26:29,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-03-31 01:26:29,758 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 19.7) internal successors, (197), 6 states have internal predecessors, (197), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 246 [2023-03-31 01:26:29,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:26:29,771 INFO L225 Difference]: With dead ends: 4352 [2023-03-31 01:26:29,771 INFO L226 Difference]: Without dead ends: 2892 [2023-03-31 01:26:29,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:26:29,777 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3838 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2961 mSolverCounterSat, 897 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3838 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 3858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 897 IncrementalHoareTripleChecker+Valid, 2961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:26:29,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3838 Valid, 16 Invalid, 3858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [897 Valid, 2961 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-03-31 01:26:29,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2892 states. [2023-03-31 01:26:30,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2892 to 1987. [2023-03-31 01:26:30,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1987 states, 1581 states have (on average 1.5306767868437698) internal successors, (2420), 1672 states have internal predecessors, (2420), 238 states have call successors, (238), 151 states have call predecessors, (238), 167 states have return successors, (274), 237 states have call predecessors, (274), 234 states have call successors, (274) [2023-03-31 01:26:30,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1987 states to 1987 states and 2932 transitions. [2023-03-31 01:26:30,550 INFO L78 Accepts]: Start accepts. Automaton has 1987 states and 2932 transitions. Word has length 246 [2023-03-31 01:26:30,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:26:30,551 INFO L495 AbstractCegarLoop]: Abstraction has 1987 states and 2932 transitions. [2023-03-31 01:26:30,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 19.7) internal successors, (197), 6 states have internal predecessors, (197), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-03-31 01:26:30,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1987 states and 2932 transitions. [2023-03-31 01:26:30,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-03-31 01:26:30,554 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:26:30,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:26:30,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 01:26:30,554 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:26:30,554 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:26:30,555 INFO L85 PathProgramCache]: Analyzing trace with hash -428660674, now seen corresponding path program 1 times [2023-03-31 01:26:30,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:26:30,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451309987] [2023-03-31 01:26:30,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:26:30,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:26:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:26:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:26:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:26:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-03-31 01:26:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:26:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-03-31 01:26:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:26:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:26:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-31 01:26:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 01:26:31,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:26:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-03-31 01:26:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:26:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-03-31 01:26:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:26:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-03-31 01:26:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-03-31 01:26:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-03-31 01:26:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-03-31 01:26:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-03-31 01:26:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-03-31 01:26:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-03-31 01:26:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:26:31,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:26:31,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:26:31,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451309987] [2023-03-31 01:26:31,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451309987] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:26:31,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:26:31,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:26:31,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369725297] [2023-03-31 01:26:31,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:26:31,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:26:31,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:26:31,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:26:31,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:26:31,276 INFO L87 Difference]: Start difference. First operand 1987 states and 2932 transitions. Second operand has 9 states, 9 states have (on average 21.88888888888889) internal successors, (197), 5 states have internal predecessors, (197), 3 states have call successors, (27), 7 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22)